TY  - JOUR
AB  - 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.
DA  - 2021
DO  - 10.3390/metabo11060369
KW  - PGPR
KW  - tomato
KW  - drought stress
KW  - Bacillus megaterium TG1-E1
KW  - transcriptome
KW  - extracellular metabolites
KW  - osmoprotectant
LA  - eng
IS  - 6
PY  - 2021
T2  - Metabolites
TI  - Plant Transcriptome Reprograming and Bacterial Extracellular Metabolites Underlying Tomato Drought Resistance Triggered by a Beneficial Soil Bacteria
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-29560278
Y2  - 2024-11-22T05:29:41
ER  -