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1.
Int J Mol Sci ; 25(17)2024 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-39273128

RESUMO

The endogenous stress metabolite ß-aminobutyric acid (BABA) primes plants for enhanced resistance against abiotic and biotic stress by activating a complex phytohormone signaling network that includes abscisic acid (ABA), jasmonic acid (JA), salicylic acid (SA), and ethylene (ET). In this study, through stringent filtering, we identify 14 master regulatory transcription factors (TFs) from the DOF, AHL, and ERF families that potentially regulate the biosynthesis and signaling of these phytohormones. Transcriptional analysis of BABA-treated Arabidopsis thaliana and Hordeum vulgare suggests that DOF family TFs play a crucial role in stress response regulation in both species. BABA treatment in A. thaliana upregulates the TFs MNB1A and PBF and enhances the expression of the genes ICS1, EDS5, and WIN3 in the SA biosynthesis pathway, potentially boosting NPR1 and PR1 in the SA signaling pathway. Conversely, in H. vulgare, the BABA-induced upregulation of TF DOF5.8 may negatively regulate SA biosynthesis by downregulating ICS1, EDS5, and PR1. Additionally, in A. thaliana, BABA triggers the expression of TF PBF, which may result in the decreased expression of MYC2, a key gene in JA signaling. In contrast, H. vulgare exhibits increased expression of ERF2 TF, which could positively regulate the JA biosynthesis genes LOX and Tify9, along with the COI1 and JAZ genes involved in the JA signaling pathway. These findings offer new perspectives on the transcriptional regulation of phytohormones during plant priming.


Assuntos
Aminobutiratos , Arabidopsis , Regulação da Expressão Gênica de Plantas , Hordeum , Reguladores de Crescimento de Plantas , Transdução de Sinais , Fatores de Transcrição , Hordeum/genética , Hordeum/metabolismo , Arabidopsis/genética , Arabidopsis/metabolismo , Fatores de Transcrição/metabolismo , Fatores de Transcrição/genética , Reguladores de Crescimento de Plantas/metabolismo , Aminobutiratos/farmacologia , Ciclopentanos/metabolismo , Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Oxilipinas/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Ácido Salicílico/metabolismo
2.
Acta Biol Hung ; 66(3): 326-38, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26344028

RESUMO

The wild-type viral protein R (Vpr) of human immunodeficiency virus type 1 exerts multiple effects on cellular activities during infection, including the induction of cell cycle G2 arrest and the death of human cells and cells of the fission yeast Schizosaccharomyces pombe. In this study, wild-type Vpr (NL4-3Vpr) integrated as a single copy gene in S. pombe chromosome was used to investigate the molecular impact of Vpr on cellular oxidative stress. NL4-3Vpr triggered an atypical response in early (14-h), and a wellregulated oxidative stress response in late (35-h) log-phase cultures. Specifically, NL4-3Vpr expression induced oxidative stress in the 14-h cultures leading, to decreased levels of superoxide anion (O(2)(·-)), hydroxyl radical (·OH) and glutathione (GSH), and significantly decreased activities of catalase, glutathione peroxidase, glutathione reductase, glucose-6-phosphate dehydrogenase and glutathione S-transferase. In the 35-h cultures, elevated levels of O(2)(·-) and peroxides were accompanied by increased activities of most antioxidant enzymes, suggesting that the Vpr-induced unbalanced redox state of the cells might contribute to the adverse effects in HIV-infected patients.


Assuntos
Cromossomos Fúngicos , HIV-1/genética , Oxirredutases , Proteínas de Schizosaccharomyces pombe , Schizosaccharomyces , Produtos do Gene vpr do Vírus da Imunodeficiência Humana , Cromossomos Fúngicos/genética , Cromossomos Fúngicos/metabolismo , Humanos , Oxirredução , Estresse Oxidativo/fisiologia , Oxirredutases/genética , Oxirredutases/metabolismo , Proteínas Recombinantes/biossíntese , Proteínas Recombinantes/genética , Schizosaccharomyces/genética , Schizosaccharomyces/metabolismo , Proteínas de Schizosaccharomyces pombe/genética , Proteínas de Schizosaccharomyces pombe/metabolismo , Produtos do Gene vpr do Vírus da Imunodeficiência Humana/biossíntese , Produtos do Gene vpr do Vírus da Imunodeficiência Humana/genética
3.
J Basic Microbiol ; 54 Suppl 1: S50-62, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24687861

RESUMO

The molecular mechanism of tert-butyl hydroperoxide (t-BuOOH) elicited cytotoxicity and the background of t-BuOOH sensitivity were studied in the Saccharomyces cerevisiae ergosterol-less gene deletion mutant erg5Δ and its parental strain BY4741. In comparison to BY4741, untreated erg5Δ cells exhibited alterations in sterol and fatty acid compositions of the plasma membrane, as reflected by the inherent amphotericin B resistance, an elevated level (31%) of plasma membrane rigidity and a decreased uptake of glycerol. Surprisingly, the untreated erg5Δ cells exhibited an unbalanced intracellular redox state, accompanied by the continuous upregulation of the antioxidant enzymes Mn superoxide dismutase, catalase, and glutathione S-transferase, which resulted in decreased specific concentrations of superoxide and peroxides and elevated levels of the hydroxyl radical and thiols. The 2.5-fold sensitivity of erg5Δ to t-BuOOH suggested that the oxidative stress adaptation processes of the mutant could not restore the redox homeostasis of the cells and there is an overlap between sterol and redox homeostases. t-BuOOH treatment of both strains induced adaptive modification of the sterol and fatty acid compositions, increased the plasma membrane fluidity and elevated the specific activities of most antioxidant enzymes through specific regulation processes in a strain-dependent manner.


Assuntos
Membrana Celular/efeitos dos fármacos , Membrana Celular/fisiologia , Estresse Oxidativo , Saccharomyces cerevisiae/efeitos dos fármacos , Saccharomyces cerevisiae/fisiologia , Estresse Fisiológico , terc-Butil Hidroperóxido/toxicidade , Membrana Celular/química , Sistema Enzimático do Citocromo P-450/genética , Ácidos Graxos/análise , Deleção de Genes , Glicerol/metabolismo , Fluidez de Membrana , Saccharomyces cerevisiae/genética , Proteínas de Saccharomyces cerevisiae/genética , Esteróis/análise
4.
Acta Biol Hung ; 65(2): 218-26, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24873914

RESUMO

The one-gene mutation in the tert-butyl hydroperoxide-resistant mutant hyd1-190 of the fission yeast Schizosaccharomyces pombe led to a 4-fold increase in resistance to t-BuOOH and decreased specific concentrations of superoxide and total thiols in comparison with the parental strain hyd+. It suggested an unbalanced redox state of the cells, which induced continuously increased specific activities of glutathione peroxidase, glutathione reductase and glutathione S-transferase and decreased activities of the antioxidant enzymes superoxide dismutases and glucose-6-phosphate dehydrogenase to regulate the redox balance of the mutation-induced permanent, low-level but tolerable internal stress. These results may contribute to the understanding of internal, oxidative stress-related human diseases.


Assuntos
Resistência a Medicamentos , Mutação , Estresse Oxidativo/efeitos dos fármacos , Proteínas de Schizosaccharomyces pombe/metabolismo , Schizosaccharomyces/efeitos dos fármacos , terc-Butil Hidroperóxido/farmacologia , Antioxidantes/metabolismo , Resistência a Medicamentos/genética , Genótipo , Oxirredução , Estresse Oxidativo/genética , Fenótipo , Schizosaccharomyces/genética , Schizosaccharomyces/metabolismo , Proteínas de Schizosaccharomyces pombe/genética , Compostos de Sulfidrila/metabolismo , Superóxidos/metabolismo , Fatores de Tempo
5.
Plants (Basel) ; 13(16)2024 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-39204702

RESUMO

In this study, we report the interaction between an arbuscular mycorrhizal fungus, Septoglomus constrictum, and tomato plants under heat stress. For the first time, this interaction was studied by Illumina RNA-seq, followed by a comprehensive bioinformatic analysis that investigated root and leaf tissue samples. The genome-wide transcriptional profiling displayed fewer transcriptomic changes in the root under heat-stress conditions caused by S. constrictum. The top 50 DEGs suggested significant changes in the expression of genes encoding heat-shock proteins, transporter proteins, and genes of phytohormone metabolism involving jasmonic acid signalling. S. constrictum induced the upregulation of genes associated with pathways such as 'drought-responsive' and the 'development of root hair' in the root, as well as 'glycolipid desaturation', 'intracellular auxin transport', and 'ethylene biosynthesis' in the leaf. The pathways 'biotin biosynthesis' and 'threonine degradation' were found in both investigated tissue types. Expression analysis of transcription factors showed 2 and 11 upregulated transcription factors in heat-stressed root and leaf tissues, respectively. However, we did not find shared transcription factors. Heat-stressed arbuscular mycorrhizal plants suffered less oxidative stress when exposed to high temperatures. Colorimetric tests demonstrated less accumulation of H2O2 and MDA in heat-stressed mycorrhizal plants. This phenomenon was accompanied by the higher expression of six stress genes that encode peroxidases, glutathione S-transferase and ubiquitin carboxyl-terminal hydrolase in roots and leaves. Our findings provide a new perspective on elucidating the functional metabolic processes of tomato plants under mycorrhizal-heat stressed conditions.

6.
Biochim Biophys Acta ; 1818(1): 42-8, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21978596

RESUMO

The direct interaction of the antibiotic primycin with the plasma membrane was investigated by employing the well-characterized ergosterol-producing, amphotericin B-sensitive parental Candida albicans strain 33erg(+) and its ergosterol-less amphotericin B-resistant plasma membrane mutant erg-2. The growth inhibition concentration in shaken liquid medium was 64 µgml(-1) for 33erg(+) and 128 µgml(-1) for erg-2, suggesting that the plasma membrane composition influences the mode of action of primycin. To determine the primycin-induced changes in the plasma membrane dynamic, electron paramagnetic resonance (EPR) spectroscopy methods were used, the spin-labeled fatty acid 5-(4,4-dimethyloxazolidine-N-oxyl)stearic acid) being applied for the in vivo measurements. The phase transition temperatures of untreated strain 33erg(+) and its mutant erg-2 were 12.5°C and 11°C, respectively. After 128 µgml(-1) primycin treatment, these values increased to 17.5°C and 16°C, revealing a significant reduction in the phospholipid flexibility. Saturation transfer EPR measurements demonstrated that, the rotational correlation times of the spin label molecule for the control samples of 33erg(+) and erg-2 were 60 ns and 100 ns. These correlation times gradually decreased on the addition of increasing primycin concentrations, reaching 8 µs and 1 µs. The results indicate the plasma membrane "rigidizing" effect of primycin, a feature that may stem from its ability to undergo complex formation with membrane constituent fatty acid molecules, causing alterations in the structures of phospholipids in the hydrophobic surface near the fatty acid chain region.


Assuntos
Antibacterianos/química , Candida albicans/efeitos dos fármacos , Membrana Celular/efeitos dos fármacos , Ergosterol/metabolismo , Macrolídeos/química , Anfotericina B/farmacologia , Antibacterianos/farmacologia , Candida albicans/genética , Candida albicans/metabolismo , Membrana Celular/química , Membrana Celular/metabolismo , Relação Dose-Resposta a Droga , Espectroscopia de Ressonância de Spin Eletrônica , Ergosterol/química , Ácidos Graxos/química , Ácidos Graxos/metabolismo , Deleção de Genes , Genes Fúngicos , Interações Hidrofóbicas e Hidrofílicas , Macrolídeos/farmacologia , Fluidez de Membrana , Transição de Fase , Marcadores de Spin , Temperatura
7.
Data Brief ; 46: 108800, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36569538

RESUMO

Nowadays, many researchers, farmers and companies focus on the development of an environmentally friendly approach for enhancing field vegetable production and protection. Using next-generation plant biostimulants (PBs) could be effective to enhance tolerance to abiotic and biotic stresses, vegetable crop quality or nutrient efficiency which is particularly important for vegetables with a short growing season, such as Pisum sativum. Two herbal drug-containing plant conditioners Elice16Indures® (supercritical carbon dioxide extract SC-CO2) and Fitokondi® (aqueous extract) developed in the RIMPH Ltd (Hungary) were used in pea field experiments to monitor the potential of enhancing crop quality and defense response against different stress factors. Fresh leaves were collected after treatments for QuantSeq 3' mRNA sequencing at Illumina NextSeq 550 platform and libraries were investigated by genome-wide transcriptional profiling focusing on genes associated with defense response pathways. RNA quantification datasets are presented and 86 bp long sequence reads were pre-processed and assembled that were deposited in the National Center for Biotechnology Information (NCBI), Sequence Read Archive (SRA) and Transcriptome Shotgun Assembly (TSA) databases under the BioProject PRJNA870114. Functional annotation of transcripts and pairwise differential expression with enrichment analyses are presented here to support gene expression analysis experiments.

8.
Heliyon ; 9(1): e12907, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36691550

RESUMO

Recently, climate change has had an increasing impact on the world. Innate defense mechanisms operating in plants - such as PAMP-triggered Immunity (PTI) - help to reduce the adverse effects caused by various abiotic and biotic stressors. In this study, the effects of ELICE16INDURES® plant conditioner for organic farming, developed by the Research Institute for Medicinal Plants and Herbs Ltd. Budakalász Hungary, were studied in a soybean population in Northern Hungary. The active compounds and ingredients of this product were selected in such a way as to facilitate the triggering of general plant immunity without the presence and harmful effects of pathogens, thereby strengthening the healthy plant population and preparing it for possible stress effects. In practice, treatments of this agent were applied at two different time points and two concentrations. The conditioning effect was well demonstrated by using agro-drone and ENDVI determination in the soybean field. The genetic background of healthier plants was investigated by NGS sequencing, and by the expression levels of genes encoding enzymes involved in the catalysis of metabolic pathways regulating PTI. The genome-wide transcriptional profiling resulted in 13 contigs related to PAMP-triggered immunity and activated as a result of the treatments. Further analyses showed 16 additional PTI-related contigs whose gene expression changed positively as a result of the treatments. The gene expression values of genes encoded in these contigs were determined by in silico mRNA quantification and validated by RT-qPCR. Both - relatively low and high treatments - showed an increase in gene expression of key genes involving AOC, IFS, MAPK4, MEKK, and GST. Transcriptomic results indicated that the biosyntheses of jasmonic acid (JA), salicylic acid (SA), phenylpropanoid, flavonoid, phytoalexin, and cellular detoxification processes were triggered in the appropriate molecular steps and suggested that plant immune reactions may be activated also artificially, and innate immunity can be enhanced with proper plant biostimulants.

10.
Plants (Basel) ; 12(4)2023 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-36840091

RESUMO

Recently, environmentally friendly crop improvements using next-generation plant biostimulants (PBs) come to the forefront in agriculture, regardless of whether they are used by scientists, farmers, or industries. Various organic and inorganic solutions have been investigated by researchers and producers, focusing on tolerance to abiotic and biotic stresses, crop quality, or nutritional deficiency. Garlic has been considered a universal remedy ever since antiquity. A supercritical carbon dioxide garlic extract encapsulated in nanoscale liposomes composed of plant-derived lipids was examined as a possible PB agent. The present study focused on the characterization of the genes associated with the pathways involved in defense response triggered by the liposome nanoparticles that were loaded with supercritical garlic extracts. This material was applied to Triticum aestivum in greenhouse experiments using foliar spraying. The effects were examined in a large-scale genome-wide transcriptional profiling experiment by collecting the samples four times (0 min, used as a control, and 15 min, 24 h, and 48 h after spraying). Based on a time-course expression analysis, the dynamics of the cellular response were determined by examining differentially expressed genes and applying a cluster analysis. The results suggested an enhanced expression of abscisic acid (ABA) pathway and pathogenesis-related (PR) genes, of which positive regulation was found for the AP2-, C2H2-, HD-ZIP-, and MYB-related transcription factor families.

11.
Plants (Basel) ; 12(12)2023 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-37375933

RESUMO

Plant immunological memory, priming, is a defense mechanism that can be triggered by external stimuli, leading to the activation of biochemical pathways and preparing plants for disease resistance. Plant conditioners improve yield and crop quality through nutrient efficiency and abiotic stress tolerance, which is enhanced by the addition of resistance- and priming-induced compounds. Based on this hypothesis, this study aimed to investigate plant responses to priming actives of different natures, including salicylic acid and beta-aminobutyric acid, in combination with the plant conditioning agent ELICE Vakcina®. Phytotron experiments and RNA-Seq analyses of differentially expressed genes using the combinations of these three investigated compounds were performed in a barley culture to investigate possible synergistic relationships in the genetic regulatory network. The results indicated a strong regulation of defense responses, which was enhanced by supplemental treatments; however, both synergistic and antagonistic effects were enhanced with one or two components, depending on the supplementation. The overexpressed transcripts were functionally annotated to assess their involvement in jasmonic acid and salicylic acid signaling; however, their determinant genes were highly dependent on the supplemental treatments. Although the effects overlapped, the potential effects of trans-priming the two supplements tested could be largely separated.

12.
Acta Biol Hung ; 63(1): 38-51, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22453799

RESUMO

Interaction of primycin antibiotic with plasma membrane, and its indirect biological effects were investigated in this study. The antifungal activity of primycin against 13 human pathogenic Candida ATCC and CBS reference species and 74 other Candida albicans clinical isolates was investigated with a microdilution technique. No primycin-resistant strain was detected. Direct interaction of primycin with the plasma membrane was demonstrated for the first time by using an ergosterol-producing strain 33erg+ and its ergosterol-less mutant erg-2. In growth inhibition tests, the 33erg+ strain proved to be more sensitive to primycin than its erg-2 mutant, indicating the importance of the plasma membrane composition in primycin-induced processes. The 64 µg ml-1 (56.8 nM) primycin treatment induced an enhanced membrane fluidity and altered plasma membrane dynamics, as measured by steady-state fluorescence anisotropy applying a trimethylammonium-diphenylhexatriene (TMA-DPH) fluorescence polarization probe. The following consequences were detected. The plasma membrane of the cells lost its barrier function, and the efflux of 260-nm-absorbing materials from treated cells of both strains was 1.5-1.8 times more than that for the control. Depending on the primycin concentration, the cells exhibited unipolar budding, pseudohyphae formation, and a rough cell surface visualized by scanning electron microscopy.


Assuntos
Antifúngicos/farmacologia , Candida albicans/efeitos dos fármacos , Candida albicans/genética , Candida albicans/metabolismo , Ergosterol/metabolismo , Macrolídeos/farmacologia , Mutação , Anisotropia , Antifúngicos/química , Candida albicans/isolamento & purificação , Membrana Celular/efeitos dos fármacos , Humanos , Macrolídeos/química , Testes de Sensibilidade Microbiana , Estrutura Molecular
13.
Data Brief ; 43: 108426, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35818355

RESUMO

The dynamic of flower development is a key agronomic characteristic affecting soybean yield. RNA-seq dataset of field-cultivated soybean flowers in four developmental stages including flower buds, and early, mature, and overblown stage flowers are reported in this paper. Gene Expression (Gex) library construction and Illumina NextSeq550 sequencing were carried out to produce 86 bp long forward reads. Reads were preprocessed and deposited in the National Center for Biotechnology Information Sequence Read Archive (NCBI SRA) database. These SRA depositions are under the BioProject accession: PRJNA807844. A reference transcriptome dataset was de novo assembled using these SRA reads. Annotation, differential expression, and gene set enrichment analyses were performed and deposited in the Mendeley Data.

14.
Data Brief ; 45: 108602, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36425991

RESUMO

Elice16Indures® Plant Conditioner combines the effects of a number of herbs to increase the yield of dicotyledonous plants in the field. This crop enhancer can also be used in organic farming applying low doses with ULV spraying by drone. Reducing the ecological footprint is the basis for sustainable crop production. By using the crop enhancer, a better crop can be achieved with less impact on the environment. EU Member States attach great importance to rapeseed (Brassica napus). Due to its versatility, it is one of the supported plants. Plant conditioner applied in different phenological phases (BBCH 51 and BBCH 67) of winter oilseed rape at a dose of 240 g/ha of. By using Elice16Indures, the value of the vegetation index and the yield can be increased. RNA-seq data set of field Elice16Indures-treated and non-treated (control) rapeseed plants are presented. For RNA-seq experiments, two samples were taken from leaf tissues in the phenological phase of BBCH 69 from control and treated plots, 2 days after treatment. Illumina NextSeq 550 sequence reads were uploaded to the NCBI SRA database after preprocessing. Combined read sets were de novo assembled and functional annotation with the output transcripts were performed. The entire dataset of identified coding sequences (transcripts) was deposited in the NCBI TSA database. The SRA and TSA datasets are under the BioProject access PRJNA838472. The data series reported in this study may open up new opportunities to increase the efficiency of organic rapeseed production.

15.
Data Brief ; 42: 108182, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35496495

RESUMO

The herbal drug-containing plant conditioner Elice16Indures® may help elicit plant immune responses in field dicotyledonous cultures. Application of this conditioner is also allowed in organic farming and recommended its drone spraying application in small doses. In this way, even distribution and better yields may be reached leading to economical and safe plant growing. The high protein content soy is an important food both in animal and human aspects which ecological cultivation is gaining prominence over GMO technology in the European Union. We present RNA-seq datasets of control and Elice16Indures treated soybean plants cultivated in field conditions from 01/05/2020 to 20/07/2020. For RNA seq experiments six samples were collected from vegetative tissues two times during the vegetation cycle: before and in flowering after 48 h of drone exposure. The 86 bp long Illumina NextSeq 550 reads were preprocessed and deposited in the NCBI SRA database. De novo assembly of combined read sets was performed and transcripts were deposited in the NCBI TSA database. Data of functional analysis of annotated transcripts are presented. The SRA and TSA datasets are under the Bioproject accession PRJNA778970. The presented datasets may help new strategies of ecological production of soy.

16.
Data Brief ; 42: 108287, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35637890

RESUMO

The biostimulant phytochemicals as alternatives to synthetic chemicals are gaining ground in sustainable agricultural production nowadays. The medicinal herb, garlic (Allium sativum) has a spectacular therapeutic reputation due to its antimicrobial properties. The effectiveness of supercritical carbon dioxide (SC-CO2) extraction of A. sativum could help preserve bioactive compounds and be used as a biostimulant agent. The SC-CO2 garlic was formulated in liposomes and used as a nanoscale drug delivery system to reach better efficiency of penetration and translocation. The SC-CO2 garlic extracts were used in Triticum aestivum time-course experiments to monitor conditioning effects such as improving crop quality and priming its defense responses against different pathogens. Fresh leaves were collected after SC-CO2 garlic exposure at 15 min, 24, and 48 hours for QuantSeq 3' mRNA sequencing at Illumina NextSeq 550 platform. RNA quantification datasets are presented. Raw data such as Illumina 85bp single-end read sequences and reconstructed transcripts were deposited in the NCBI SRA and TSA databases under the BioProject PRJNA808851. Functional annotation of transcripts and time-course expression data are presented here to support gene expression analysis experiments.

17.
Data Brief ; 41: 107983, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35252498

RESUMO

The non-protein amino acid ß-Aminobutyric acid (BABA) may trigger the immune responses of plants to various biotic and abiotic stresses leading to a long-term resistance (primed state). We present RNA-seq datasets of BABA - primed mono- and dicotyledonous plants, such as Arabidopsis thaliana and Hordeum vulgare. Illumina NextSeq550 sequencing were carried out after 72 h of BABA exposure. 87 bp long sequence reads were preprocessed of treated and control samples and deposited in the NCBI SRA database. Transcriptome datasets were de novo assembled of each species and deposited in the NCBI TSA database. These SRA and TSA depositions are under the Bioproject accession: PRJNA791573. Pairwise differential expression with enrichment analyses were performed and the most specific DEGs were determined and annotated in both plants.

18.
Data Brief ; 45: 108736, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36426060

RESUMO

We present plasmid sequences of 21 multidrug resistant isolates of Enterobacterales belonging to Escherichia coli (n=10), Klebsiella pneumoniae (n=9), Klebsiella oxytoca (n=1), and Citrobacter freundii (n=1). The isolates originated from effluent collected from hospital sewer pipes and from a wastewater treatment plant (WWTP) in a southwestern Hungarian city. Isolation was carried out using eosin methylene blue agar supplemented with ceftriaxone and the isolates were identified with MALDI-TOF MS. Screening for multidrug resistance was conducted by determining susceptibility to four chemical classes namely, beta-lactams, aminoglycoside, fluoroquinolone, and sulfonamide. Plasmid DNA was isolated by alkaline lysis method using the Monarch plasmid DNA miniprep kit from freshly grown pure colonies. Molecular typing and Illumina sequencing of plasmid DNA of multiresistant strains were performed. After the assembly of contigs, genes localized on plasmid sequences were determined and functionally annotated. These reconstructed plasmid sequences supplemented with gene functional annotations were deposited in the Mendeley data. Using these datasets different plasmid incompatibility groups were identified. These conjugative plasmids appear to play a key role in the transmission of multiple resistance genes in enteric bacteria via wastewater. The presented data may provide useful insight on the correlations between environmental antibiotic contamination and the development of bacterial resistance, which poses a serious public health threat.

19.
Antibiotics (Basel) ; 11(6)2022 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-35740182

RESUMO

Antimicrobials in wastewater promote the emergence of antibiotic resistance, facilitated by selective pressure and transfer of resistant genes. Enteric bacteria belonging to Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Enterobacter cloacae, and Citrobacter species (n = 126) from hospital effluents and proximate wastewater treatment plant were assayed for susceptibility to four antimicrobial classes. The ß-lactamase encoding genes harbored in plasmids were genotyped and the plasmids were sequenced. A multidrug resistance phenotype was found in 72% (n = 58) of E. coli isolates, 70% (n = 43) of Klebsiella species isolates, and 40% (n = 25) of Enterobacter and Citrobacter species. Moreover, 86% (n = 50) of E. coli, 77% (n = 33) of Klebsiella species, and 25% (n = 4) of Citrobacter species isolates phenotypically expressed extended spectrum ß-lactamase. Regarding ESBL genes, blaCTX-M-27 and blaTEM-1 were found in E. coli, while Klebsiella species harbored blaCTX-M-15, blaCTX-M-30, or blaSHV-12. Genes coding for aminoglycoside modifying enzymes, adenylyltransferases (aadA1, aadA5), phosphotransferases (aph(6)-1d, aph(3″)-Ib), acetyltransferases (aac(3)-IIa), (aac(6)-Ib), sulfonamide/trimethoprim resistant dihydropteroate synthase (sul), dihydrofolate reductase (dfrA), and quinolone resistance protein (qnrB1) were also identified. Monitoring wastewater from human sources for acquired resistance in clinically important bacteria may provide a cheaper alternative in regions facing challenges that limit clinical surveillance.

20.
Plants (Basel) ; 11(21)2022 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-36365426

RESUMO

This work aimed to study the plant conditioning effect and mode of action of a plant-based biostimulant used in organic farming. This new generation plant biostimulant, named ELICE16INDURES®, is rich in plant bio-active ingredients containing eleven supercritical botanical extracts encapsulated in nano-scale liposomes. The dose-response (10 to 240 g ha-1) relationship was tested in a field population of autumn barley (Hordeum vulgare) test crop, and underlying molecular mechanisms were studied. Applying nanotechnology, cell-identical nanoparticles may help the better uptake and delivery of active ingredients increasing resilience, vitality, and crop yield. The amount of harvested crops showed a significant increase of 27.5% and 39.9% interconnected to higher normalized difference vegetation index (NDVI) of 20% and 25% after the treatment of low and high dosages (20 and 240 g ha-1), respectively. Illumina NextSeq 550 sequencing, gene expression profiling, and KEGG-pathway analysis of outstanding dosages indicated the upregulation of pathogenesis-related (PR) and other genes-associated with induced resistance-which showed dose dependency as well.

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