RESUMEN
Salinity is one of the major abiotic stresses for sustainable agriculture. The use of mineral nutrients in form of nanoparticles can be a novel strategy to fight against abiotic stresses. An in vitro study has been conducted to investigate the effect of zinc oxide nanoparticles (ZnO NPs) capped with glycine betaine (ZnOBt) on coriander plants exposed to saline (NaCl) stress. SEM and XRD analysis revealed 14.73 nm and 17.34 nm size of ZnO and ZnOBt NPs, respectively with spherical to hexagonal structures. Coriander plant length and biomass increased by the application of ZnO and ZnOBt NPs. ZnOBt NPs depicted promising results at 100 mg/L where, shoot and root length increased up to 14 cm and 13 cm, respectively as compared to plants grown under saline stress. ZnOBt NPs also increased fresh and dry weight of shoots and roots as compared to other treatments. The results depict that ZnOBt NPs mitigated stress condition. This is evident from concentration of phenolic and flavonoid contents that decreased in both roots and shoots. Free radical scavenging activity, total antioxidant capacity and total reducing power also decreased in plants by ZnOBt NPs when applied with stress. The concentration of superoxide and peroxide dismutase also decreased by application of ZnOBt NPs to salt stress plants. Glycine betaine with ZnO NPs, in conclusion, can be an effective remedy for salinity-exposed plants. These nanoparticles can be encouraged as a viable technique to overcome the detrimental effects of saline stress on plants.
Asunto(s)
Coriandrum , Salinidad , Coriandrum/química , Coriandrum/efectos de los fármacos , Coriandrum/crecimiento & desarrollo , Coriandrum/fisiología , Óxido de Zinc , Nanopartículas , Fertilizantes , Betaína , Fitoquímicos/análisisRESUMEN
The environmental and health risks associated with the application of synthetic chemical inputs in agriculture increased the demand for technologies that allow higher performance and quality of vegetable crops by implementing synergistic materials with the principles of sustainability. In this work, the seed coating with the biomass of Dunaliella salina incorporated in a bioplastic film of Manihot esculenta (cassava) was evaluated as an initial growth and secondary compounds stimulator of Coriandrum sativum (coriander) plants. The obtained results demonstrated that the coating stimulated an increase in the germination percentage (28.75%) and also in concentration of bioactive compounds, such as the six-fold increment of caffeic acid (13.33 mg 100 g-1). The carbohydrates, lipids, and proteins present in the microalgae biomass seem to be responsible for these increments once they are known for providing energy to the seedling development and coordinating the secondary metabolites synthesis. As conclusion, we consider the coating with biomass of D. salina an alternative for crop improvement that contributes to the development of sustainable agricultural practices.
Asunto(s)
Biomasa , Chlorophyceae , Coriandrum , Microalgas , Desarrollo de la Planta , Metabolismo Secundario , Semillas , Ácidos Cafeicos , Carbohidratos , Chlorophyceae/química , Coriandrum/química , Coriandrum/efectos de los fármacos , Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Producción de Cultivos/métodos , Lípidos , Manihot/química , Microalgas/química , Desarrollo de la Planta/efectos de los fármacos , Metabolismo Secundario/efectos de los fármacos , Semillas/química , Semillas/efectos de los fármacos , Semillas/crecimiento & desarrollo , Semillas/metabolismo , Desarrollo SostenibleRESUMEN
The presence of excessive salts in the soil and irrigation water can change the growth and affect the metabolic functions of plants. Coriander (Coriandrum sativum L.) is often cultivated in arid and semiarid areas where irrigation with low-quality water and uneven distribution of rainfall may contribute to the accumulation of salts in the substrate. In the present study, coriander plants were cultivated in half-strength Hoagland nutrient solution containing 0.2, 0.6 and 1.2 g NaCl L-1 to assess the effect of low concentrations of NaCl on biomass production and mineral nutrients accumulation (Ca, K, Mg, Na, P). The presence of 0.2, 0.6 and 1.2 g NaCl L-1 slightly stimulated biomass production. The concentration of Na increased in coriander tissues (up to 4 times relative to control). However, concentration of K and Ca in leaves of plants treated with 1.2 g NaCl L-1 was decreased with respect to control. Based on the findings, even though biomass of coriander, under applied NaCl concentrations, was slightly increased, the chemical composition of its vegetative organs was severely disrupted by present salt which is very important for the quality of coriander as a popular herb or spice plant.
Asunto(s)
Biomasa , Coriandrum/crecimiento & desarrollo , Minerales/análisis , Cloruro de Sodio/efectos adversos , Coriandrum/fisiología , Cloruro de Sodio/metabolismoRESUMEN
BACKGROUND: Priming of seed prior chilling is regarded as one of the methods to promote seeds germination, whole plant growth, and yield components. The application of biostimulants was reported as beneficial for protecting many plants from biotic or abiotic stresses. Their value was as important to be involved in improving the growth parameters of plants. Also, they were practiced in the regulation of various metabolic pathways to enhance acclimation and tolerance in coriander against chilling stress. To our knowledge, little is deciphered about the molecular mechanisms underpinning the ameliorative impact of biostimulants in the context of understanding the link and overlap between improved morphological characters, induced metabolic processes, and upregulated gene expression. In this study, the ameliorative effect(s) of potassium silicate, HA, and gamma radiation on acclimation of coriander to tolerate chilling stress was evaluated by integrating the data of growth, yield, physiological and molecular aspects. RESULTS: Plant growth, yield components, and metabolic activities were generally diminished in chilling-stressed coriander plants. On the other hand, levels of ABA and soluble sugars were increased. Alleviation treatment by humic acid, followed by silicate and gamma irradiation, has notably promoted plant growth parameters and yield components in chilling-stressed coriander plants. This improvement was concomitant with a significant increase in phytohormones, photosynthetic pigments, carbohydrate contents, antioxidants defense system, and induction of large subunit of RuBisCO enzyme production. The assembly of Toc complex subunits was maintained, and even their expression was stimulated (especially Toc75 and Toc 34) upon alleviation of the chilling stress by applied biostimulators. Collectively, humic acid was the best the element to alleviate the adverse effects of chilling stress on growth and productivity of coriander. CONCLUSIONS: It could be suggested that the inducing effect of the pretreatments on hormonal balance triggered an increase in IAA + GA3/ABA hormonal ratio. This ratio could be linked and engaged with the protection of cellular metabolic activities from chilling injury against the whole plant life cycle. Therefore, it was speculated that seed priming in humic acid is a powerful technique that can benefit the chilled along with non-chilled plants and sustain the economic importance of coriander plant productivity.
Asunto(s)
Respuesta al Choque por Frío/fisiología , Coriandrum/crecimiento & desarrollo , Reguladores del Crecimiento de las Plantas/farmacología , Semillas/crecimiento & desarrollo , Aclimatación , Antioxidantes/metabolismo , Metabolismo de los Hidratos de Carbono , Carbohidratos/análisis , Proteínas de Cloroplastos/metabolismo , Respuesta al Choque por Frío/efectos de los fármacos , Respuesta al Choque por Frío/efectos de la radiación , Coriandrum/efectos de los fármacos , Coriandrum/efectos de la radiación , Enzimas/metabolismo , Rayos gamma , Sustancias Húmicas , Peroxidación de Lípido , Pigmentos Biológicos/metabolismo , Reguladores del Crecimiento de las Plantas/metabolismo , Compuestos de Potasio/química , Compuestos de Potasio/farmacología , Semillas/efectos de los fármacos , Semillas/efectos de la radiaciónRESUMEN
The objective of this study was to determine the oxidative stress and the physiological and antioxidant responses of coriander plants (Coriandrum sativum) grown for 58 days in soil with zinc oxide nanoparticles (ZnO NPs) and zinc sulfate (ZnSO4) at concentrations of 0, 100, 200, 300, and 400 mg of Zn/kg of soil. The results revealed that all Zn compounds increased the total chlorophyll content (CHLt) by at least 45%, compared to the control group; however, with 400 mg/kg of ZnSO4, chlorophyll accumulation decreased by 34.6%. Zn determination by induction-plasma-coupled atomic emission spectrometry (ICP-AES) showed that Zn absorption in roots and shoots occurred in plants exposed to ZnSO4 at all concentrations, which resulted in high levels of hydrogen peroxide (H2O2) and malondialdehyde (MDA). Only at 400 mg/kg of ZnSO4, a 78.6% decrease in the MDA levels was observed. According to the results, the ZnSO4 treatments were more effective than the ZnO NPs to increase the antioxidant activity of catalase (CAT), ascorbate peroxidase (APX), and peroxidases (POD). The results corroborate that phytotoxicity was higher in plants subjected to ZnSO4 compared to treatments with ZnO NPs, which suggests that the toxicity was due to Zn accumulation in the tissues by absorbing dissolved Zn++ ions.
Asunto(s)
Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Peroxidación de Lípido , Nanopartículas del Metal/química , Desarrollo de la Planta , Óxido de Zinc/química , Sulfato de Zinc/química , Antioxidantes/metabolismo , Biomarcadores , Coriandrum/efectos de los fármacos , Peroxidación de Lípido/efectos de los fármacos , Nanopartículas del Metal/ultraestructura , Oxidación-Reducción , Fotosíntesis , Fitoquímicos/química , Desarrollo de la Planta/efectos de los fármacos , Brotes de la Planta/efectos de los fármacos , Brotes de la Planta/crecimiento & desarrollo , Brotes de la Planta/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Análisis Espectral , Óxido de Zinc/metabolismo , Óxido de Zinc/farmacología , Sulfato de Zinc/metabolismo , Sulfato de Zinc/farmacologíaRESUMEN
Coriander contains petroselinic acid, an isomer fatty acid of oleic acid. Coriander seed oil has been proposed as novel food ingredient in the European Union. Field experiments were performed at Auch (France) during two seasons (2010 and 2011). From flowering to maturity, fruits were harvested weekly and oil content and fatty acid (FA) compositions were determined. Fruits presented 2% more oil in 2010 than in 2011. Petroselinic acid (PA) contents was higher in 2011 than in 2010. Oil accumulation began earlier after flowering (2 DAF) in 2011. A first step in accumulation was identified between two and 21 DAF characterized by high SFA and PUFA, which decreased 21 DAF. Subsequently, PA increased to its highest concentration (30-55 DAF) and SFA and PUFA reached their lowest. These results suggest that higher concentrations of PA can be achieved by collecting fruits before full maturity.
Asunto(s)
Coriandrum/química , Ácidos Grasos/química , Aceites de Plantas/química , Coriandrum/crecimiento & desarrollo , Frutas/química , Frutas/crecimiento & desarrollo , Isomerismo , Ácido Oléico/química , Semillas/químicaRESUMEN
BACKGROUND: There is an urgent need for a new sustainable way of satisfying the increasing demand for food worldwide. One of the main challenges is replacing chemical fertilizers with biofertilizers, which include plant root-associated beneficial microorganisms. The present study reports, for the first time, the effects of SCCPVE07 bacterial strain with respect to improving not only plant development, but also the nutritional content and bioactive compounds content of Coriandrum sativum L., one of the most economically important crops, even for plant growth under salinity stress. RESULTS: Innoculated coriander plants (C. sativum L.) showed an increase in potassium, carbon, calcium and iron content. A significant improvement in phenolic compounds contents was also observed. The contents of 5-O-caffeoylquinic acid, cinnamic acid, 4-methoxy-cinnamic acid hexoside, K-3-O rutinoside, Q-3-O-rutinoside, Q-3-O-glucoside and Q-3-O-glucuronide were significantly enhanced. Moreover, an efficient bacterial root colonization and a noted growth promotion were demonstrated. Bacterial genome was sequenced and analysed. Gene coding related to Plant growth promotion (PGP) mechanisms and proteins involved in plant defence from salinity or in the metabolism of phenolic compounds, such as quercetin 2,3-dioxygenase and phenolic acid decarboxylase, were identified. CONCLUSION: The results obtained in the present study show, for the first time, the beneficial effects of the inoculation of a bacterial Bacillus halotolerans biofertilizer on coriander crops with respect to increasing the content in bioactive compounds and plant development. © 2020 Society of Chemical Industry.
Asunto(s)
Bacillus/crecimiento & desarrollo , Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Fenoles/metabolismo , Bacillus/genética , Bacillus/aislamiento & purificación , Coriandrum/microbiología , Fertilizantes/microbiología , Phaseolus/microbiología , Desarrollo de la Planta , Nódulos de las Raíces de las Plantas/microbiología , SalinidadRESUMEN
TiO2 nanoparticles (nTiO2) have been widely used in many disciplines. However, whether they can be used to improve crops growth and nutritional quality is unknown. In this study, coriander (Coriandrum sativum L.) was treated with 0, 50, 100, 200, and 400 mg/L nTiO2 to evaluate their possible benefit to plant growth and nutritional quality under hydroponic conditions. Our observations showed that 50 mg/L nTiO2 only slightly but insignificantly increased the root and shoot fresh biomass by 13.2 % and 4.1 %, respectively, relative to the control. nTiO2 at this level promoted shoot K, Ca, Mg, Fe, Mn, Zn, and B accumulation, while spatial distribution of K, Ca, Fe, Mn, Cu and Zn in coriander leaves was not affected. No nTiO2 internalization or translocation to shoots occurred. 400 mg/L nTiO2 significantly reduced root fresh biomass by 15.8 % and water content by 6.7 %. Moreover, this high dose induced root cell membrane wrinkling, attributable to their aggregation and adsorption on root surfaces. At 100-400 mg/L, antioxidant defense systems (SOD, CAT and APX) in plant were triggered to alleviate oxidative stress. At an appropriate dose (50 mg/L), nTiO2 can improve nutrient quality of edible tissues without exerting toxicity to plant or posing health risk to consumers.
Asunto(s)
Coriandrum/efectos de los fármacos , Nanopartículas/química , Valor Nutritivo/efectos de los fármacos , Hojas de la Planta/efectos de los fármacos , Raíces de Plantas/efectos de los fármacos , Titanio/farmacología , Antioxidantes/metabolismo , Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Hojas de la Planta/crecimiento & desarrollo , Hojas de la Planta/metabolismo , Raíces de Plantas/crecimiento & desarrollo , Raíces de Plantas/metabolismo , Titanio/química , Oligoelementos/metabolismoRESUMEN
The growth of the nanotechnology industry has raised concerns about its environmental impacts. In particular, the effect on terrestrial plants, which are the primary producers of the global food chain, is widely debated. In this study, cilantro plants (Coriandrum sativum) were cultivated for 35 days in soil amended with ZnO nanoparticles (N ZnO), bulk ZnO (B ZnO) and ZnCl2 (ionic/I Zn) at 0-400â¯mg/kg. Photosynthetic pigments, lipid peroxidation, 1NMR-based metabolic, and ICP-based metallomic profiles were evaluated. All Zn compounds increased the chlorophyll content by at least 50%, compared to control. Only N ZnO at 400â¯mg/kg decreased lipid peroxidation by 70%. 1NMR data showed that all compounds significantly changed the carbinolic-based compounds, compared with control. Highest root and shoot uptake of Zn was observed at B 400 and I 100, respectively. Results of this study corroborates that N ZnO at a concentration <400â¯mg/kg improved photosynthesis pigments and the defense response in cilantro plants cultivated in organic soil.
Asunto(s)
Coriandrum/crecimiento & desarrollo , Coriandrum/fisiología , Peroxidación de Lípido , Nanopartículas/química , Fotosíntesis , Pigmentos Biológicos/metabolismo , Suelo , Óxido de Zinc/farmacología , Carotenoides/metabolismo , Clorofila/metabolismo , Coriandrum/efectos de los fármacos , Peroxidación de Lípido/efectos de los fármacos , Malondialdehído/metabolismo , Metabolómica , Fotosíntesis/efectos de los fármacos , Raíces de Plantas/metabolismo , Brotes de la Planta/metabolismo , Espectroscopía de Protones por Resonancia Magnética , Zinc/metabolismoRESUMEN
ABTRACT Foodborne illness represents a major economic burden worldwide and a serious public health threat, with around 48 million people affected and 3,000 death each year only in the USA. One of the possible strategies to reduce foodborne infections is the development of effective preservation strategies capable of eradicating microbial contamination of foods. Over the last years, new challenges for the food industry have arisen such as the increase of antimicrobial resistance of foodborne pathogens to common preservatives and consumers demand for naturally based products. In order to overcome this, new approaches using natural or bio-based products as food preservatives need to be investigated. Coriander (Coriandrum sativum L.) is a well-known herb widely used as spice, or in folk medicine, and in the pharmacy and food industries. Coriander seed oil is the world's second most relevant essential oil, exhibiting antimicrobial activity against Gram-positive and Gram-negative bacteria, some yeasts, dermatophytes and filamentous fungi. This review highlights coriander oil antimicrobial activity and possible mechanisms of action in microbial cells and discusses the ability of coriander oil usage as a food preservative, pointing out possible paths for the successful evolution for these strategies towards a successful development of a food preservation strategy using coriander oil.
Asunto(s)
Antiinfecciosos/química , Coriandrum/química , Conservantes de Alimentos/química , Modelos Biológicos , Aceites Volátiles/química , Aceites de Plantas/química , Semillas/química , Monoterpenos Acíclicos , Animales , Antiinfecciosos/efectos adversos , Antiinfecciosos/metabolismo , Comportamiento del Consumidor , Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Contaminación de Alimentos/prevención & control , Conservación de Alimentos , Conservantes de Alimentos/efectos adversos , Conservantes de Alimentos/metabolismo , Tecnología de Alimentos/tendencias , Enfermedades Transmitidas por los Alimentos/prevención & control , Hongos/crecimiento & desarrollo , Hongos/metabolismo , Bacterias Gramnegativas/crecimiento & desarrollo , Bacterias Gramnegativas/metabolismo , Bacterias Grampositivas/crecimiento & desarrollo , Bacterias Grampositivas/metabolismo , Humanos , Monoterpenos/efectos adversos , Monoterpenos/química , Monoterpenos/metabolismo , Aceites Volátiles/efectos adversos , Aceites Volátiles/metabolismo , Aceites de Plantas/efectos adversos , Aceites de Plantas/metabolismo , Semillas/crecimiento & desarrollo , Semillas/metabolismoRESUMEN
The widespread use of agrochemicals is detrimental to the environment and may exert harmful effects on human health. The consumer demand for organic food plants has been increasing. There is thus a rising need for alternatives to agrochemicals that can foster sustainable plant production. The aim of this study was to evaluate the potential use of an arbuscular mycorrhizal (AM) fungus as an alternative to application of chemical fertilizer for improving growth performance of the medicinal and aromatic plant Coriandrum sativum. Plants were inoculated with the AM fungus Rhizophagus irregularis BEG163 and/or supplemented with a commercial chemical fertilizer (Plant Marvel, Nutriculture Bent Special) in agricultural soil. Plant growth, nutrition, and development of AM fungus were assessed. Plants inoculated with R. irregularis and those supplemented with chemical fertilizer displayed significantly improved growth performances when compared with controls. There were no significant differences in total fresh weight between plants inoculated with R. irregularis or those supplemented with chemical fertilizer. Leaf chlorophyll a + b (82%), shoot nitrogen (44%), phosphorus (254%), and potassium (27%) concentrations increased in plants inoculated with R. irregularis compared to controls. Application of chemical fertilizer inhibited root mycorrhizal colonization and the length of the extraradical mycelium of R. irregularis. Inoculation with R. irregularis was equally or more efficient than application of chemical fertilizer in promoting growth and nutrition of C. sativum. AM fungi may thus contribute to improve biologically based production of food plants and reduce the dependence on agrochemicals in agriculture.
Asunto(s)
Coriandrum/microbiología , Coriandrum/fisiología , Fertilizantes/análisis , Micorrizas/fisiología , Microbiología del Suelo , Coriandrum/crecimiento & desarrollo , Hojas de la Planta/crecimiento & desarrollo , Hojas de la Planta/fisiología , Raíces de Plantas/crecimiento & desarrollo , Raíces de Plantas/microbiología , Raíces de Plantas/fisiología , Plantas Medicinales/crecimiento & desarrollo , Plantas Medicinales/microbiología , Plantas Medicinales/fisiologíaRESUMEN
BACKGROUND: We report investigations on the use of graphene quantum dots for growth enhancement in coriander (Coriandrum sativam L.) and garlic (Allium sativum) plants. The as-received seeds of coriander and garlic were treated with 0.2 mg mL(-1) of graphene quantum dots for 3 h before planting. RESULTS: Graphene quantum dots enhanced the growth rate in coriander and garlic plants, including leaves, roots, shoots, flowers and fruits, when the seeds were treated with graphene quantum dots. CONCLUSION: Our investigations open up the opportunity to use graphene quantum dots as plant growth regulators that can be used in a variety of other food plants for high yield.
Asunto(s)
Coriandrum/efectos de los fármacos , Ajo/efectos de los fármacos , Grafito/farmacología , Reguladores del Crecimiento de las Plantas/farmacología , Puntos Cuánticos , Semillas/efectos de los fármacos , Agricultura/métodos , Coriandrum/crecimiento & desarrollo , Productos Agrícolas/efectos de los fármacos , Productos Agrícolas/crecimiento & desarrollo , Ajo/crecimiento & desarrollo , Desarrollo de la Planta/efectos de los fármacos , Estructuras de las Plantas/crecimiento & desarrollo , Semillas/crecimiento & desarrolloRESUMEN
RESUMO O uso de esterco bovino é de suma importância para os agricultores familiares que produzem coentro na região de Mossoró-RN, pois esse insumo é amplamente disponível e utilizado pelos agricultores. Objetivando-se avaliar o Rendimento do coentro fertilizado com esterco bovino em diferentes doses e tempos de incorporação ao solo foi conduzido um experimento no período de setembro a novembro de 2011, na Fazenda Experimental Rafael Fernandes, da Universidade Federal Rural do Semi-Árido - UFERSA, Brasil. Os tratamentos consistiram da combinação de quatro doses de esterco bovino incorporadas ao solo: 15,0; 30,0; 45,0 e 60,0 t ha-1 em base seca, com quatro tempos de incorporação: 28; 49; 64 e 80 dias antes da semeadura do coentro - DAS, mais um tratamento controle (ausência de adubação). O delineamento experimental utilizado foi em blocos completos casualizados com os tratamentos arranjados em esquema fatorial 4 x 4 + 1 com 3 repetições. A cultivar de coentro utilizado foi a Verdão e as variáveis determinadas foram altura e número de hastes por planta e rendimento de coentro. O coentro respondeu à aplicação de esterco bovino, produzindo rendimentos máximos de 6453 e 6349 kg ha-1 de massa verde, com a dose de 60 t ha-1 e aos quarenta e seis dias de incorporação antes da semeadura, respectivamente.
ABSTRACT The use of manure is very important to family farmers who produce coriander in the region of Mossoró-RN, because this input is widely available and used by farmers. Aiming to evaluate the yield of the coriander fertilized with manure at different doses and incorporation times in the soil, a trial was conducted from September to November 2011, at the Experimental Farm Rafael Fernandes in the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, Brazil. The treatments consisted on the combination of four levels of manure incorporated into the soil: 15.0; 30.0; 45.0 and 60.0 t ha-1 at dry basis, with four incorporation times: 28; 49; 64 and 80 days before the coriander"s sowing - DAS, plus a control treatment (without fertilization). The experimental design was a randomized complete block with treatments arranged in a 4 x 4 + 1, with three replications. The coriander planted was the "Verdão" and the specific variables were height and number of stalks per plant and yield of the coriander. The coriander responded to the application of the manure, producing maximum yields of 6453 and 6349 kg ha-1 of fresh mass, with the dose of 60 t ha-1 and at forty-six days of incorporation before the sowing, respectively.
Asunto(s)
Suelo/clasificación , Coriandrum/crecimiento & desarrollo , Estiércol/análisis , Verduras/clasificaciónRESUMEN
Coriander commonly known as Dhania or Chinese parsley is generally grown for its use in soups, salads, dressing vegetables, seasoning and chutney. Effect of two phytohormones viz. GA3 and 2,4-D on seed germination, seedling growth and various physiological and biochemical parameters were studied. The hormones were applied individually in different concentrations (10, 50 and 100 µM concentrations). Both the hormones enhanced the germination percentage, seedling growth (root and shoot length), leaf area, chlorophyll and carotenoid content. The application of these hormones also decreased the germination time. Maximum germination, shoot length, leaf area and carotenoid content was observed in 100 µm concentration of GA3. Root length, chl. a and chl. b was maximum in 50 µM of 2,4-D and 100 µm GA3, respectively. The application of two hormones exhibited a marked increase on all the parameters studied as compared to the control.
Asunto(s)
Coriandrum/efectos de los fármacos , Germinación/efectos de los fármacos , Ácidos Indolacéticos/farmacología , Reguladores del Crecimiento de las Plantas/farmacología , Plantones/efectos de los fármacos , Semillas/efectos de los fármacos , Carotenoides/metabolismo , Clorofila/metabolismo , Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Relación Dosis-Respuesta a Droga , Plantones/crecimiento & desarrollo , Plantones/metabolismo , Semillas/crecimiento & desarrollo , Semillas/metabolismoRESUMEN
Studies have shown that CeO2 nanoparticles (NPs) can be accumulated in plants without modification, which could pose a threat for human health. In this research, cilantro (Coriandrum sativum L.) plants were germinated and grown for 30 days in soil amended with 0 to 500 mg kg⻹ CeO2 NPs and analyzed by spectroscopic techniques and biochemical assays. At 125 mg kg⻹, plants produced longer roots (p ≤ 0.05), and at 500 mg kg⻹, there was higher Ce accumulation in tissues (p ≤ 0.05). At 125 mg, catalase activity significantly increased in shoots and ascorbate peroxidase in roots (p ≤ 0.05). The FTIR analyses revealed that at 125 mg kg⻹ the CeO2 NPs changed the chemical environment of carbohydrates in cilantro shoots, for which changes in the area of the stretching frequencies were observed. This suggests that the CeO2 NPs could change the nutritional properties of cilantro.
Asunto(s)
Cerio/análisis , Coriandrum/química , Contaminación de Alimentos , Nanopartículas del Metal/análisis , Raíces de Plantas/química , Brotes de la Planta/química , Contaminantes del Suelo/análisis , Cerio/metabolismo , Cerio/toxicidad , Coriandrum/efectos adversos , Coriandrum/crecimiento & desarrollo , Coriandrum/metabolismo , Humanos , Nanopartículas del Metal/toxicidad , Agricultura Orgánica , Raíces de Plantas/efectos adversos , Raíces de Plantas/crecimiento & desarrollo , Raíces de Plantas/metabolismo , Brotes de la Planta/efectos adversos , Brotes de la Planta/crecimiento & desarrollo , Brotes de la Planta/metabolismo , Medición de Riesgo , Contaminantes del Suelo/metabolismo , Contaminantes del Suelo/toxicidadRESUMEN
O coentro é a hortaliça mais utilizada como condimento na região de Mossoró-RN. Um experimento foi conduzido na Fazenda Experimental Rafael Fernandes da Universidade Federal Rural do Semi-Árido - UFERSA, no período de maio a junho de 2010, com o objetivo de avaliar o rendimento de coentro sob diferentes quantidades da planta trepadeira jitirana, incorporada ao solo como adubo verde. O delineamento experimental usado foi o de blocos completos casualizados com sete tratamentos e três repetições. Os tratamentos consistiram da incorporação de sete quantidades de jitirana (3,0; 6,0; 9,0; 12,0; 15,0; 18,0 e 21,0 t ha-1 de matéria seca de jitirana). A cultivar de coentro plantado foi a Verdão. As características avaliadas foram: altura e número de hastes por planta, rendimento e massa seca da parte aérea. O melhor desempenho agronômico do coentro foi observado na quantidade de 21,0 t ha-1 de jitirana. Para cada tonelada de jitirana incorporada ao solo observa-se um rendimento de coentro de 395 kg ha-1.
The ciliandro is the vegetable more used as seasoning in the area at Mossoró-RN. An experiment was conducted at the Experimental Farm Rafael Fernandes of the Universidade Federal Rural do Semi-Árido - UFERSA in the period from may to june 2010, with the objective of evaluating the coriander yield in under different amounts of plant clambering scarlet starglory, incorporated into the soil. The experimental design was randomized complete blocks with eight treatments and three replicates. The treatments were combinations of eight amounts of scarlet starglory (3.0; 6.0; 9.0; 12.0; 15.0; 18.0 and 21.0 t ha-1 dry matter). The coriander cultivar planted was Verdão. The characteristics evaluated in the coriander were: plant height and number of stalks per plant, yield and dry matter mass of shoots. The best agroconomic performance lettuce was observed in the amount of 21,0 t ha-1 scarlet starglory. For each fresh or dry scarlet starglory ton incorporated into the soil, it was observed a mean yield of coriander mass of 395 kg ha-1.
Asunto(s)
Coriandrum/crecimiento & desarrollo , Estiércol/análisis , Convolvulaceae/efectos adversos , Eficiencia/clasificación , Agricultura Orgánica/organización & administración , Fitomejoramiento/métodosRESUMEN
O coentro (Coriandrum sativum L.) é uma hortaliça amplamente consumida no Brasil como condimento. É muito importante, especialmente para a horticultura do Norte e Nordeste do Brasil. É provável que, em relação ao valor de mercado, seja a segunda hortaliça folhosa em importância para o Brasil, com grande volume de importação e produção nacional de sementes. Problemas relacionados ao baixo vigor das sementes e ao estabelecimento da cultura são uma constante nesta espécie. O presente trabalho teve como objetivo verificar a influência do sistema de produção orgânico e convencional sobre o potencial fisiológico das sementes de coentro. Foram avaliados lotes de sementes de coentro, cultivar Verdão, provenientes de sistemas de cultivo convencional e orgânico. O delineamento experimental foi inteiramente casualizado com seis tratamentos e quatro repetições de cinqüenta sementes. Foram avaliados o grau de umidade, porcentagem de emergência, primeira contagem do teste de emergência, peso de mil sementes, índice de velocidade de emergência de plântulas e teste de condutividade. As avaliações realizadas mostraram que os sistemas de cultivo de modo geral não diferem entre si quanto ao potencial fisiológico das sementes.
The coriander (Coriandum sativum L.) is an herb widely consumed in Brazil as a condiment. It is very important, particularly for horticulture in North and Northeast of Brazil. IT is likely that, in terms of market value, it is the second herb hardwood dusts in importance for Brazil, losing only to the lettuce and the high volume of imports and domestic production of seed. Problems related to the low seed vigor and the establishment of culture are a constant in this species. In the present work lots of coriander seeds, the cv. Verdão, from systems of conventional and organic were evaluated, having as objective is to verify the influence of the physiological potential of the seeds on the initial development of plants grown under organic system. They were evaluated degree of humidity, percentage of emergency, first count of the test of emergency, weight of 1,000 seeds, index of emergency speed of seedlings and conductivity test. The experimental design was a completely randomized design with four replicates of 50 seeds. The assessments carried out showed that the cultivation systems in general does not differ as to the physiological potential of the seeds.
Asunto(s)
Coriandrum/crecimiento & desarrollo , Semillas/crecimiento & desarrollo , Producción de Cultivos , Agricultura OrgánicaRESUMEN
Coriander is commonly used for medicinal purposes, food applications, cosmetics and perfumes. Herein, the production of antioxidants in vegetative parts (leaves and stems) of in vivo and in vitro grown samples was compared. In vitro samples were clone A- with notorious purple pigmentation in stems and leaves and clone B- green. Seeds were also studied as they are used to obtain in vivo and in vitro vegetative parts. Lipophilic (tocopherols, carotenoids and chlorophylls) and hydrophilic (sugars, ascorbic acid, phenolics, flavonols and anthocyanins) compounds were quantified. The antioxidant activity was evaluated by radical scavenging activity, reducing power and lipid peroxidation inhibition. The in vivo sample showed the highest antioxidant activity mainly due to its highest levels of hydrophilic compounds. Otherwise, in vitro samples, mainly clone A, gave the highest concentration in lipophilic compounds but a different profile when compared to the in vivo sample. Clones A and B revealed a lack of ß-carotene, ß- and δ-tocopherols, a decrease in α-tocopherol, and an increase in γ-tocopherol and clorophylls in comparison to the in vivo sample. In vitro culture might be useful to explore the plants potentialities for industrial applications, controlling environmental conditions to produce higher amounts of some bioactive products.