Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 681
Filtrar
Más filtros

Intervalo de año de publicación
1.
Annu Rev Psychol ; 75: 495-526, 2024 Jan 18.
Artículo en Inglés | MEDLINE | ID: mdl-37585666

RESUMEN

Research in cultural psychology over the last three decades has revealed the profound influence of culture on cognitive, emotional, and motivational processes shaping individuals into active agents. This article aims to show cultural psychology's promise in three key steps. First, we review four notable cultural dimensions believed to underlie cultural variations: independent versus interdependent self, individualism versus collectivism, tightness versus looseness of social norms, and relational mobility. Second, we examine how ecology and geography shape human activities and give rise to organized systems of cultural practices and meanings, called eco-cultural complexes. In turn, the eco-cultural complex of each zone is instrumental in shaping a wide range of psychological processes, revealing a psychological diversity that extends beyond the scope of the current East-West literature. Finally, we examine some of the non-Western cultural zones present today, including Arab, East Asian, Latin American, and South Asian zones, and discuss how they may have contributed, to varying degrees, to the formation of the contemporary Western cultural zone.


Asunto(s)
Emociones , Motivación , Humanos , Normas Sociales
2.
BMC Plant Biol ; 24(1): 519, 2024 Jun 08.
Artículo en Inglés | MEDLINE | ID: mdl-38851682

RESUMEN

Rice seeds of different varieties exhibited distinct metabolic profiles in our study. We analyzed the metabolites in seeds of six rice varieties (CH, HM, NX, YX, HY, and MX) using non-targeted GC-MS. Our findings revealed that amino acids, sugars, and organic acids were predominant in all varieties, with significant differences observed in CH compared to the others. Specifically phenylalanine and glycine content differed notably in NX and YX, respectively. Additionally, 1,5-anhydroglucitol content in NX, and glutamate, aspartate, and lactulose in NX, YX, HM, HY, and MX were up-regulated. Due to the biological functions of these amino acids and sugars, these indicated that compared to CH, rice of NX were more conducive to metabolism of carbohydrate and fat, and healthy growth maintenance in the human body, but mightThese variations suggest that NX rice may be more beneficial for carbohydrate and fat metabolism and overall health maintenance compared to CH. However, it may not be suitable for diabetic patients. YX rice may not be an ideal glycine supplement, rice ofwhile HM, HY, and MX rice could serve as potential lactulose sources. Furthermore, NX and YX rice exhibited higher levels of main storage proteins compared to CH. This study offers valuable insights into the metabolic differences among various rice varieties.


Asunto(s)
Cromatografía de Gases y Espectrometría de Masas , Metabolómica , Oryza , Semillas , Oryza/metabolismo , Semillas/metabolismo , Semillas/química , Metabolómica/métodos , Aminoácidos/metabolismo , Aminoácidos/análisis , Metaboloma
3.
J Appl Microbiol ; 135(8)2024 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-39147565

RESUMEN

AIMS: Arbuscular mycorrhizal fungi (AMF) can perform significant functions within sustainable agricultural ecosystems, including vineyards. Increased AMF diversity can be beneficial in promoting plant growth and increasing resilience to environmental changes. To effectively utilize AMF communities and their benefits in vineyard ecosystems, a better understanding of how management systems influence AMF community composition is needed. Moreover, it is unknown whether AMF communities in organically managed vineyards are distinct from those in conventionally managed vineyards. METHODS AND RESULTS: In this study, vineyards were surveyed across the Marlborough region, New Zealand to identify the AMF communities colonizing the roots of different rootstocks grafted with Sauvignon Blanc and Pinot Noir in both conventional and organic systems. The AMF communities were identified based on spores isolated from trap cultures established with the collected grapevine roots, and by next-generation sequencing technologies (Illumina MiSeq). The identified AMF species/genera belonged to Glomeraceae, Entrophosporaceae, and Diversisporaceae. The results revealed a significant difference in AMF community composition between rootstocks and in their interaction with management systems. CONCLUSIONS: These outcomes indicated that vineyard management systems influence AMF recruitment by rootstocks and some rootstocks may therefore be more suited to organic systems due to the AMF communities they support. This could provide an increased benefit to organic systems by supporting higher biodiversity.


Asunto(s)
Micorrizas , Raíces de Plantas , Microbiología del Suelo , Vitis , Micorrizas/fisiología , Vitis/microbiología , Nueva Zelanda , Raíces de Plantas/microbiología , Granjas , Agricultura/métodos , Biodiversidad , Ecosistema
4.
BMC Public Health ; 24(1): 2048, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39080661

RESUMEN

BACKGROUND: Drug shortage is a worldwide problem that seriously threatens public health. China released the most comprehensive list of key drug shortage monitoring varieties ever in 2022. We aim to analyze the attributes and characteristics of the medicines within the list to provide a reference for improving China's supply security of shortage drugs. METHODS: We used public data to extract information on drug types, dosage forms, indications, classification of clinical uses, whether they were included in medical catalogs such as the National Essential Drugs, and the number of drug and active pharmaceutical ingredient (API) manufacturers. A descriptive statistical analysis was used. RESULTS: Of the 980 drugs on the list, 99.59% were chemicals and 92.65% were injectables. Drugs for blood and hematopoietic organs, the cardiovascular system, and the digestive tract and metabolism ranked among the top three shortages. Verification of the medical catalogs showed that 90.41% of the drugs belonged to the national essential drugs, 95.10% were medicare drugs, 2.55% were volume-based procurement drugs, and 14.70% were for rare diseases, and 42.04% were for children. In terms of drug supply capacity, 21.33% of drug approvals are less than 10, and there were even 26 drugs for exclusive production, close to 90% of manufacturers need to purchase APIs from outside. Among the 256 APIs included in the list, 152 APIs had less than 10 manufacturers, and there were even 5 APIs produced by only one enterprise nationwide. CONCLUSIONS: The situation of drug shortages in China was severe and complex, with serious shortages of medicines adapted to basic medical and healthcare needs and clinically necessary medicines, and a need to improve the production capacity of drugs and the ability to supply APIs. We recommend strengthening drug monitoring and stockpiling and accelerating the approval of shortage drugs to improve drug supply security.


Asunto(s)
Medicamentos Esenciales , China , Humanos , Estudios Transversales , Preparaciones Farmacéuticas/provisión & distribución , Medicamentos Esenciales/provisión & distribución , Industria Farmacéutica
5.
Ecotoxicol Environ Saf ; 281: 116596, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38896899

RESUMEN

Cadmium (Cd), which accumulates in tobacco leaves, enters the human body through inhalation of smoke, causing harmful effects on health. Therefore, identifying the pivotal factors that govern the absorption and resistance of Cd in tobacco is crucial for mitigating the harmful impact of Cd. In the present study, four different Cd-sensitive varieties, namely, ZhongChuan208 (ZC) with resistance, ZhongYan100 (ZY), K326 with moderate resistance, and YunYan87 (YY) with sensitivity, were cultivated in hydroponic with different Cd concentrations (20 µM, 40 µM, 60 µM and 80 µM). The results indicated that plant growth was significantly decreased by Cd. Irrespective of the Cd concentration, ZC exhibited the highest biomass, while YY had the lowest biomass; ZY and K326 showed intermediate levels. Enzymatic (APX, CAT, POD) and nonenzymatic antioxidant (Pro, GSH) systems showed notable variations among varieties. The multifactor analysis suggested that the ZC and ZY varieties, with higher levels of Pro and GSH content, contribute to a decrease in the levels of MDA and ROS. Among all the Cd concentrations, ZC exhibited the lowest Cd accumulation, while YY showed the highest. Additionally, there were significant differences observed in Cd distribution and translocation factors among the four different varieties. In terms of Cd distribution, cell wall Cd accounted for the highest proportion of total Cd, and organelles had the lowest proportion. Among the varieties, ZC showed lower Cd levels in the cell wall, soluble fraction, and organelles. Conversely, YY exhibited the highest Cd accumulation in all tissues; K326 and ZY had intermediate levels. Translocation factors (TF) varied among the varieties under Cd stress, with ZC and ZY showing lower TF compared to YY and K326. This phenomenon mainly attributed to regulation of the NtNramp3 and NtNramp5 genes, which are responsible for the absorption and transport of Cd. This study provides a theoretical foundation for the selection and breeding of tobacco varieties that are resistant to or accumulate less Cd.


Asunto(s)
Nicotiana , Nicotiana/química , Nicotiana/genética , Nicotiana/crecimiento & desarrollo , Nicotiana/metabolismo , Cadmio/toxicidad , Resistencia a Medicamentos , Regulación de la Expresión Génica de las Plantas/efectos de los fármacos , Estrés Fisiológico/efectos de los fármacos , Antioxidantes/metabolismo , Proteínas de Transporte de Catión/metabolismo
6.
Phytochem Anal ; 35(3): 476-482, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37984858

RESUMEN

INTRODUCTION: Olive leaves, abundant by-products of the olive oil industry, are a rich source of oleuropein, an important polyphenol in olive leaves. So far, no published methods have been validated using matrix standards for oleuropein quantification in olive leaves. OBJECTIVES: The study aimed to develop an HPLC method for oleuropein determination in olive leaves using spiked matrix standards prepared from a blank olive leaf matrix, to validate the method with respect to aqueous standards, and cross-validate the HPLC method with UPLC-MS and UPLC-UV techniques. METHODOLOGY: Oleuropein was extracted into methanol and analysed by HPLC with fluorescence detection (FLD; excitation and emission wavelengths 281 and 316 nm, respectively) and by UPLC-MS-UV. For validation, calibration curves of spiked matrix standards (0.4 to 4.8 mg/g) were analysed by the three methods over several days. Oleuropein was then analysed in French olive varieties. RESULTS: For the HPLC-FLD method, repeatability and intermediate precision were less than 5% RSD and linearity was demonstrated by the Fischer test. Differences in results of the spiked placebos by the three methods were non-significant, as confirmed by ANOVA. Extraction recovery was >90%, and there was a strong linear relationship between authentic and spiked matrix standards. The determination of oleuropein in French olive varieties is reported, including analysis in "Olivière" cultivar for the first time, leaves of which contained twice the amount of oleuropein compared with "Picholine". CONCLUSION: Accurate quantification of oleuropein is possible using aqueous standards. Cross-validation indicates that selective analysis can equally be carried out by HPLC or by UPLC-MS techniques.


Asunto(s)
Cromatografía Líquida con Espectrometría de Masas , Olea , Cromatografía Líquida de Alta Presión/métodos , Cromatografía Liquida , Iridoides , Espectrometría de Masas en Tándem/métodos , Glucósidos Iridoides/análisis , Aceite de Oliva , Hojas de la Planta/química
7.
Phytochem Anal ; 35(7): 1620-1632, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38923178

RESUMEN

INTRODUCTION: Secondary metabolites in plants play a crucial role in defense mechanisms against insects, pests, and pathogens. These metabolites exhibit varying distributions within and among plant parts under different biotic and abiotic conditions. Understanding the intricate relationships between secondary metabolites and insect populations can be helpful for elucidating plant defense mechanisms and enhancing agricultural managing efficiencies. OBJECTIVE: To investigate the influence of the glucosinolate profile in the leaves of three cabbage (Brassica oleracea var. capitata L.) varieties on insect loads. METHODS: Glucosinolate profiles across different leaf positions (such as bottom, middle, and center) and leaf shapes (such as curly and non-curly leaf) of three cabbage varieties (Xiagan [XGA], Xiaguang [XGU], and Qiangxia [QIX]) were analyzed by using high-performance liquid chromatography-mass spectrometry (LC-MS). The insect loads were recorded by visually inspecting the upper and lower layers of each target leaf. RESULTS: Increasing concentrations of four glucosinolates, namely, glucoiberin, progoitrin, glucoraphanin, and glucobrassicin, were positively related to insect loads. While increasing concentrations of the other four glucosinolates, such as neoglucobrassicin, 4-methoxyglucobrassicin, sinigrin, and gluconapin, were negatively related to insect loads. Furthermore, both glucosinolate synthesis and insect loads were significantly higher in the curly-shaped and middle-position leaves than in the non-curly-shaped and bottom- and central-position leaves across the cabbage varieties. CONCLUSION: Differences in glucosinolate profiles across leaf positions and shapes strongly influenced the insect loads of the three Brassica varieties. This link may further extend our understanding of the real defense power of a particular variety against herbivore damage.


Asunto(s)
Brassica , Glucosinolatos , Hojas de la Planta , Hojas de la Planta/química , Hojas de la Planta/metabolismo , Brassica/química , Brassica/metabolismo , Glucosinolatos/metabolismo , Glucosinolatos/análisis , Animales , Metabolismo Secundario , Insectos/fisiología , Cromatografía Líquida de Alta Presión , Sulfóxidos , Imidoésteres/metabolismo , Imidoésteres/análisis , Espectrometría de Masas , Indoles , Oximas
8.
Int J Mol Sci ; 25(15)2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39125682

RESUMEN

Brassinosteroids (BRs) are an essential group of plant hormones regulating numerous aspects of plant growth, development, and stress responses. BRI1, along with its co-receptor BAK1, are involved in brassinosteroid sensing and early events in the BR signal transduction cascade. Mutational analysis of a particular gene is a powerful strategy for investigating its biochemical role. Molecular genetic studies, predominantly in Arabidopsis thaliana, but progressively in numerous other plants, have identified many mutants of the BRI1 gene and its orthologs to gain insight into its structure and function. So far, the plant kingdom has identified up to 40 bri1 alleles in Arabidopsis and up to 30 bri1 orthologs in different plants. These alleles exhibit phenotypes that are identical in terms of development and growth. Here, we have summarized bri1 alleles in Arabidopsis and its orthologs present in various plants including monocots and dicots. We have discussed the possible mechanism responsible for the specific allele. Finally, we have briefly debated the importance of these alleles in the research field and the agronomically valuable traits they offer to improve plant varieties.


Asunto(s)
Alelos , Proteínas de Arabidopsis , Arabidopsis , Brasinoesteroides , Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Arabidopsis/genética , Arabidopsis/metabolismo , Brasinoesteroides/metabolismo , Proteínas Quinasas/genética , Proteínas Quinasas/metabolismo , Regulación de la Expresión Génica de las Plantas , Mutación , Transducción de Señal/genética , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo
9.
Int J Mol Sci ; 25(16)2024 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-39201375

RESUMEN

A perennial leguminous forage, Medicago ruthenica has outstanding tolerance to abiotic stresses. The genome of Medicago ruthenica is large and has a complex genetic background, making it challenging to accurately determine genetic information. However, the chloroplast genome is widely used for researching issues related to evolution, genetic diversity, and other studies. To better understand its chloroplast characteristics and adaptive evolution, chloroplast genomes of 61 Medicago ruthenica were assembled (including 16 cultivated Medicago ruthenica germplasm and 45 wild Medicago ruthenica germplasm). These were used to construct the pan-chloroplast genome of Medicago ruthenica, and the chloroplast genomes of cultivated and wild Medicago ruthenica were compared and analyzed. Phylogenetic and haplotype analyses revealed two main clades of 61 Medicago ruthenica germplasm chloroplast genomes, distributed in eastern and western regions. Meanwhile, based on chloroplast variation information, 61 Medicago ruthenica germplasm can be divided into three genetic groups. Unlike the phylogenetic tree constructed from the chloroplast genome, a new intermediate group has been identified, mainly consisting of samples from the eastern region of Inner Mongolia, Shanxi Province, and Hebei Province. Transcriptomic analysis showed that 29 genes were upregulated and three genes were downregulated. The analysis of these genes mainly focuses on enhancing plant resilience and adapting adversity by stabilizing the photosystem structure and promoting protein synthesis. Additionally, in the analysis of adaptive evolution, the accD, clpP and ycf1 genes showed higher average Ka/Ks ratios and exhibited significant nucleotide diversity, indicating that these genes are strongly positively selected. The editing efficiency of the ycf1 and clpP genes significantly increases under abiotic stress, which may positively contribute to plant adaptation to the environment. In conclusion, the construction and comparative analysis of the complete chloroplast genomes of 61 Medicago ruthenica germplasm from different regions not only revealed new insights into the genetic variation and phylogenetic relationships of Medicago ruthenica germplasm, but also highlighted the importance of chloroplast transcriptome analysis in elucidating the model of chloroplast responses to abiotic stress. These provide valuable information for further research on the adaptive evolution of Medicago ruthenica.


Asunto(s)
Evolución Molecular , Genoma del Cloroplasto , Medicago , Filogenia , Genoma del Cloroplasto/genética , Medicago/genética , Cloroplastos/genética , Variación Genética , Adaptación Fisiológica/genética , Regulación de la Expresión Génica de las Plantas , Haplotipos
10.
Int J Mol Sci ; 25(16)2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-39201311

RESUMEN

Flavonoids play an important role in forming wine grapes and wine quality characteristics. The flavonoids of three winter red wine grapes, Yeniang No. 2 (YN2), Marselan (Mar), and Guipu No. 6 (GP6), were analyzed by ultra-high-performance liquid chromatography-triple quadrupole mass spectrometry (UPLC-QQQ-MS). Furthermore, the flavonoids in GP6 grapevines using two types of training systems, namely, trellis (T) and espaliers (E), were also compared in this study. Overall, 196 flavonoid metabolites, including 96 flavones, 38 flavonols, 19 flavanones, 18 polyphenols, 15 anthocyanins, 7 isoflavones, and 3 proanthocyanidins, were identified. The flavonoid profiles were remarkably different among these three grape varieties, while they did not change much in the GP6 managed on trellis and espaliers. Grape varieties with different genetic backgrounds have their own unique flavonoid profiles. Compared with Mar-T, isoflavones and flavonols presented higher contents in GP6-T and YN2-T, which mainly contain glycitein, genistin, calycosin, kaempferide, isotrifoliin, and ayanin. The anthocyanin content was significantly higher in YN2-T than in the other two varieties. YN2 and GP6-T present a more stable color, with significantly more acetylated diglucosides and methylated anthocyanins in YN2-T and GP6-T than in Mar-T. Notably, GP6 had more varied flavonoids and the better characteristics to its flavonoid profile out of these three varieties, due to it containing a higher number of anthocyanins, flavone, and flavonols and the greatest number of different flavonoid metabolites (DFMs), with higher contents than YN2 and Mar. Compared with the trellis training system, the espaliers training system increased the content of flavonoids detected in GP6 grape berries; however, the composition of flavonoids strictly depends on the grape variety.


Asunto(s)
Flavonoides , Metabolómica , Vitis , Vino , Vitis/química , Vitis/metabolismo , Flavonoides/análisis , Flavonoides/metabolismo , Vino/análisis , Metabolómica/métodos , China , Cromatografía Líquida de Alta Presión , Antocianinas/análisis , Antocianinas/metabolismo , Metaboloma
11.
Int J Mol Sci ; 25(18)2024 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-39337416

RESUMEN

The autochthonous grape varieties of the Don Valley, situated in southern Russia, constitute a distinctive element of regional cultural heritage. These varieties have been adapted over centuries to the region's specific local climatic and soil conditions. For the most part, these varieties are not imported from other countries. They are closely related to varieties found in Crimea and the North Caucasus. In this study, we obtained the first complete, unfragmented sequences of the chloroplast genomes of eight autochthonous varieties from the Don Valley and one from Crimea. We also performed a comparative analysis of their genomic features. The size of Vitis vinifera chloroplast genome sequences varied from 160,925 to 160,991 bp, depending on the cultivar, with a uniform GC ratio of 37.38%. Each genome consists of four subregions: a single copy region (LSC) ranging from 89,158 to 89,336 bp, a small single copy region (SSC) ranging from 19,070 to 19,073 bp, and a pair of inverted repeat regions (IRa and IRb) in the range of 26,292 to 26,353 bp. The chloroplast genomes of the studied V. vinifera varieties contained 130 genes, including 85 protein-coding genes, 8 rRNA genes, and 37 tRNA genes. The sequence divergence analysis has enabled the identification of four highly variable regions, which may be utilized as potential markers for phylogenetic analysis. The analysis revealed the presence of 58 to 61 SSRs and multiple long repeated sequences in the chloroplast genomes of these varieties. The phylogenetic analyses of the sequences obtained and complete chloroplast genomes available from public databases indicated that the majority of autochthonous V. vinifera varieties do not have a direct origin from any European variety.


Asunto(s)
Variación Genética , Genoma del Cloroplasto , Filogenia , Vitis , Vitis/genética , Vitis/clasificación , Federación de Rusia , Cloroplastos/genética
12.
J Environ Manage ; 370: 122666, 2024 Sep 28.
Artículo en Inglés | MEDLINE | ID: mdl-39342831

RESUMEN

An emerging body of literature connects the well-known Varieties of Capitalism framework (and its variants) with the propensity of nations to move away from hydrocarbons. Our study extends this work by exploring how macro-level institutional configurations matter for public expectations towards corporate environmental sustainability practices. By linking survey data of public-as-stakeholders to institutional systems encompassing 16 countries (N = 7156), we use multi-level modelling to test the explanatory power of a theoretically well-refined recent construct, namely, the Varieties of Institutional Systems - and discover significant variations associated with public expectations across different institutional systems. The findings, however, defy the notion of a clear distinction between mature and emerging markets or that mature institutional systems consistently hold firms to higher environmental standards. Rather surprisingly and counter-intuitively, we find that public-as-stakeholders from State-Led institutional systems had the highest expectations towards corporate environmental sustainability practices. We outline some of the major theoretical and policy implications of our research findings.

13.
Molecules ; 29(15)2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-39124867

RESUMEN

Previous studies have indicated that there may be differences among the varieties of lemon flavonoids, but the details have not yet been made clear, which limits the comprehensive use of different cultivated lemon varieties. In this study, ultra-performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry (UPLC-Q-TOF-MS) and ultraviolet-visible spectroscopy (UV-Vis) were used to investigate the types and contents of flavonoids in the flesh of the main cultivated variety (Eureka) and five common lemon varieties, as well as their in vitro antioxidant activity. A total of 21 compounds were identified, five of which were common compounds. Among them, Verna, Lisbon, and Bearss each have characteristic components that can serve as potential criteria for variety identification. Each of the six varieties of lemon has strong antioxidant activity. The antioxidant activity of different lemon varieties is related to flavonoids. Therefore, Eureka and the other five varieties of lemon are good natural antioxidants, and the cultivation and industrial production of lemons should consider the needs and selection of suitable varieties.


Asunto(s)
Antioxidantes , Citrus , Flavonoides , Flavonoides/análisis , Flavonoides/química , Antioxidantes/química , Antioxidantes/análisis , Citrus/química , Cromatografía Líquida de Alta Presión/métodos , Extractos Vegetales/química , Extractos Vegetales/análisis , Espectrometría de Masas/métodos , Frutas/química
14.
Molecules ; 29(7)2024 Mar 28.
Artículo en Inglés | MEDLINE | ID: mdl-38611797

RESUMEN

Vernonia patula Merr. (VP) is a traditional medicine used by the Zhuang and Yao people, known for its therapeutic properties in treating anemopyretic cold and other diseases. Distinguishing VP from similar varieties such as Praxelis clematidea (PC), Ageratum conyzoides L. (AC) and Ageratum houstonianum Mill (AH) was challenging due to their similar traits and plant morphology. The HPLC fingerprints of 40 batches of VP and three similar varieties were established. SPSS 20.0 and SIMCA-P 13.0 were used to statistically analyze the chromatographic peak areas of 37 components. The results showed that the similarity of the HPLC fingerprints for each of the four varieties was >0.9, while the similarity between the control chromatogram of VP and its similar varieties was <0.678. Cluster analysis and partial least squares discriminant analysis provided consistent results, indicating that all four varieties could be individually clustered together. Through further analysis, we found isochlorogenic acid A and isochlorogenic acid C were present only in the original VP, while preconene II was present in the three similar varieties of VP. These three components are expected to be identification points for accurately distinguishing VP from PC, AC and AH.


Asunto(s)
Ageratum , Vernonia , Humanos , Cromatografía Líquida de Alta Presión , Análisis por Conglomerados , Análisis Discriminante
15.
J Sci Food Agric ; 104(6): 3606-3613, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38148709

RESUMEN

BACKGROUND: Green gram is a rich source of protein, carbohydrates, dietary fibre, and minerals. However, accurate data on the nutritional composition of green gram remains scarce since most researchers reported the carbohydrate content using the 'by difference method'. The objective of the current study is to accurately estimate the nutritional and mineral composition of green gram (Vigna radiata (L.) Wilczek). RESULTS: Ten newly developed varieties and three local varieties of green gram were subjected to proximate and mineral composition analysis. The green gram varieties differed significantly (P < 0.05) for proximate and mineral content. From the results, they contain 62.5 to 84.6 g/kg of moisture, 28.3-37.4 g/kg of ash, 21.9-3.08 g/kg of fat, 484.6-535.7 g/kg of carbohydrate, 228.7-277.6 g/kg of protein, and 118.3-157.9 g/kg of dietary fibre. The most abundant mineral found was phosphorus, ranging 2716.66-4473.49 mg/kg followed by 3183.31-3597.61 mg/kg of potassium, 1506.51-1713.93 mg/kg of magnesium, 166.38-340.62 mg/kg of calcium, 40.16-348.79 mg/kg of iron, 27.60-34.35 mg/kg of zinc, 5.95-12.86 mg/kg of copper and 8.65-19.47 mg/kg of manganese. CONCLUSION: The newly developed varieties of green gram showed high protein and dietary fibre content, while the local varieties were high in calcium and iron. Hence, both types of varieties are nutritionally significant. © 2023 Society of Chemical Industry.


Asunto(s)
Vigna , Calcio , Minerales/análisis , Nutrientes , Hierro , Fibras de la Dieta/análisis , Carbohidratos
16.
Glob Chang Biol ; 29(8): 2335-2350, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36617489

RESUMEN

The climate crisis is impacting agroecosystems and threatening food security of millions of smallholder farmers. Understanding the potential for current and future climatic adaptation of local crop agrobiodiversity may guide breeding efforts and support resilience of agriculture. Here, we combine a genomic and climatic characterization of a large collection of traditional barley varieties from Ethiopia, a staple for local smallholder farmers cropping in challenging environments. We find that the genomic diversity of barley landraces can be partially traced back to geographic and environmental diversity of the landscape. We employ a machine learning approach to model Ethiopian barley adaptation to current climate and to identify areas where its existing diversity may not be well adapted in future climate scenarios. We use this information to identify optimal trajectories of assisted migration compensating to detrimental effects of climate change, finding that Ethiopian barley diversity bears opportunities for adaptation to the climate crisis. We then characterize phenology traits in the collection in two common garden experiments in Ethiopia, using genome-wide association approaches to identify genomic loci associated with timing of flowering and maturity of the spike. We combine this information with genotype-environment associations finding that loci involved in flowering time may also explain environmental adaptation. Our data show that integrated genomic, climatic, and phenotypic characterizations of agrobiodiversity may provide breeding with actionable information to improve local adaptation in smallholder farming systems.


Asunto(s)
Hordeum , Hordeum/genética , Estudio de Asociación del Genoma Completo , Fitomejoramiento , Genómica , Cambio Climático
17.
Crit Rev Food Sci Nutr ; 63(14): 2018-2041, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-34609268

RESUMEN

Citrus fruits are consumed in large quantities worldwide due to their attractive aromas and taste, as well as their high nutritional values and various health-promoting effects, which are due to their abundance of nutrients and bioactives. In addition to water, carbohydrates, vitamins, minerals, and dietary fibers are important nutrients in citrus, providing them with high nutritional values. Citrus fruits are also rich in various bioactives such as flavonoids, essential oils, carotenoids, limonoids, and synephrines, which protect from various ailments, including cancer and inflammatory, digestive, and cardiovascular diseases. The composition and content of nutrients and bioactives differ significantly among citrus varieties, fruit parts, and growth stages. To better understand the nutrient and bioactive profiles of citrus fruits and provide guidance for the utilization of high-value citrus resources, this review systematically summarizes the nutrients and bioactives in citrus fruit, including their contents, structural characteristics, and potential health benefits. We also explore the composition variation in different citrus varieties, fruits parts, and growth stages, as well as their health-promoting effects and applications.


Asunto(s)
Citrus , Frutas , Frutas/química , Citrus/química , Nutrientes , Flavonoides/análisis , Vitaminas
18.
Crit Rev Food Sci Nutr ; 63(4): 539-554, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-34278907

RESUMEN

As they become more health conscious, consumers are paying increasing attention to food quality and safety. In coffee production, fraudulent strategies to reduce costs and maximize profits include mixing beans from two species of different economic value, the addition of other substances and/or foods, and mislabeling. Therefore, testing for coffee authenticity and detecting adulterants is required for value assessment and consumer protection. Here we provide an overview of the chromatography, spectroscopy, and single-nucleotide polymorphism-based methods used to distinguish between the major coffee species Arabica and Robusta. This review also describes the techniques applied to trace the geographical origin of coffee, based mainly on the chemical composition of the beans, an approach that can discriminate between coffee-growing regions on a continental or more local level. Finally, the analytical techniques used to detect coffee adulteration with other foods and/or coffee by-products are discussed, with a look at the practice of adding pharmacologically active compounds to coffee, and their harmful effects on health.


Asunto(s)
Coffea , Café , Café/química , Coffea/química , Semillas/química , Calidad de los Alimentos , Manipulación de Alimentos/métodos
19.
Physiol Plant ; 175(6): e14085, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38148209

RESUMEN

Foliar N-fertilization (FNf) has emerged as a promising approach to synchronize plant nitrogen (N) demands and application timing, reducing the N losses to the environment associated with traditional soil-based fertilization methods. However, limited information exists regarding the effectiveness of FNf in sugarcane. This study aimed to optimize FNf in sugarcane by evaluating N-fertilizer recovery by the plant (NRP) and assessing potential toxicity effects. Four sugarcane genotypes were subjected to FNf using 15 N-urea at five nitrogen concentrations. NRP was assessed at five time points for roots, stalk, old leaves, 15 N-urea-fertilized leaves (15 NL), and unexpanded leaves (UEL). Leaf scorching, indicating FNf toxicity, was analyzed using morpho-anatomical and histochemical techniques. The results showed that FNf promoted high NRP, with an average recovery of 62.3%. Surprisingly, the redistribution of 15 N-urea did not follow the nitrogen uptake rate by sugarcane leaves, with an average of 41.3% of the total-NRP. The stalk emerged as the primary sink for 15 N-urea, followed by the UEL. Genotypes differed in the leaf scorching intensity, which increased with higher concentration of 15 N-urea. Genotypes also differed in the 15 N-urea uptake rate, down-regulated by the N content in the 15 NL. These findings emphasize that by carefully choosing the appropriate genotype and nitrogen concentration, FNf can significantly enhance N-fertilizer uptake, resulting in potential environmental and economic benefits.


Asunto(s)
Saccharum , Saccharum/genética , Fertilizantes/análisis , Suelo/química , Nitrógeno/química , Urea
20.
Mol Biol Rep ; 50(4): 3111-3118, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36692675

RESUMEN

BACKGROUND: Locally adapted native indigenous plant species (NIPS) could restore the crop diversity in sustainable agriculture. METHODS: Here, we report the molecular identification and nutritional profiling of some five NIPS of Karnataka; Musa paradisiaca cv. Nanjangud rasabale, Piper betle L. cv. Mysore betel leaf, Jasminum grandiflorum cv Mysore mallige, Solanum melongena L. cv. Udupi Mattu Gulla and S. melongena L. cv. Erangere badane of which the first four are Geographical Indication (GI) tagged. The samples were procured, authenticated and sequenced using two standard DNA barcodes: nuclear ITS2 and plastid rbcl. RESULTS: The phylogenetic analysis using Neighborhood joining method revealed all the ITS2 tree topologies with higher genetic divergence than rbcl. All the rbcl tree topologies were monophyletic indicating sequence conservation. Though the concatenated ITS2 + rbcl trees had higher bootstrap support (> 98% except Solanum sp.) differences were observed because of the lack of available sequence deposition at species level. The proximate and nutritional profiling of the NIPS displayed superiority in terms of their nutritional profile and their potential application in phytopharmaceutical sector as nutritional supplements. CONCLUSION: To our best knowledge this is the first study reporting the screening of five NIPS plant species of Karnataka for phylogeny and nutritional analysis. We also anticipate that if research towards the identification of NIPS species is accelerated, these nutritionally enhanced crops could be used as a safe and sustainable food in changing global climatic conditions.


Asunto(s)
Productos Agrícolas , Código de Barras del ADN Taxonómico , Código de Barras del ADN Taxonómico/métodos , ADN de Plantas/genética , Filogenia , India , Productos Agrícolas/genética
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA