Plant Transcriptome Reprograming and Bacterial Extracellular Metabolites Underlying Tomato Drought Resistance Triggered by a Beneficial Soil Bacteria
| Autor: | Song Zhang, Juan I. Vílchez, Hailing Zi, Danxia He, Rafael J. L. Morcillo, Avtar K. Handa, Richa Kaushal, Huiming Zhang, Renyi Liu, Karsten Niehaus |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Drought stress Endocrinology Diabetes and Metabolism tomato Rhizobacteria Microbiology 01 natural sciences Biochemistry Article Bacillus megaterium TG1-E1 Transcriptome 03 medical and health sciences Tomatoes PGPR drought stress transcriptome extracellular metabolites osmoprotectant Botany Transcriptional regulation Extracellular Osmoprotectant Molecular Biology Transcription factor Bacillus megaterium biology fungi food and beverages biology.organism_classification QR1-502 030104 developmental biology Extracellular metabolites Signal transduction 010606 plant biology & botany |
| Zdroj: | Digibug: Repositorio Institucional de la Universidad de Granada Universidad de Granada (UGR) Metabolites; Volume 11; Issue 6; Pages: 369 Metabolites Metabolites, Vol 11, Iss 369, p 369 (2021) Digibug. Repositorio Institucional de la Universidad de Granada instname |
| Popis: | Water deficit is one of the major constraints to crop production and food security worldwide. Some plant growth-promoting rhizobacteria (PGPR) strains are capable of increasing plant drought resistance. Knowledge about the mechanisms underlying bacteria-induced plant drought resistance is important for PGPR applications in agriculture. In this study, we show the drought stress-mitigating effects on tomato plants by the Bacillus megaterium strain TG1-E1, followed by the profiling of plant transcriptomic responses to TG1-E1 and the profiling of bacterial extracellular metabolites. Comparison between the transcriptomes of drought-stressed plants with and without TG1-E1 inoculation revealed bacteria-induced transcriptome reprograming, with highlights on differentially expressed genes belonging to the functional categories including transcription factors, signal transduction, and cell wall biogenesis and organization. Mass spectrometry-based analysis identified over 40 bacterial extracellular metabolites, including several important regulators or osmoprotectant precursors for increasing plant drought resistance. These results demonstrate the importance of plant transcriptional regulation and bacterial metabolites in PGPR-induced plant drought resistance. Chinese Academy of Sciences |
| Databáze: | OpenAIRE |
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