Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives
In response to abiotic stresses, plants mount comprehensive stress-specific responses which mediate signal transduction cascades, transcription of relevant responsive genes and the accumulation of numerous different stress-specific transcripts and metabolites, as well as coordinated stress-specific...
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doaj-2d8cb259cccf4845acdfbf1d6e4f25d22021-07-23T13:53:48ZengMDPI AGMetabolites2218-19892021-07-011145745710.3390/metabo11070457Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics PerspectivesMotseoa M. Lephatsi0Vanessa Meyer1Lizelle A. Piater2Ian A. Dubery3Fidele Tugizimana4Department of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South AfricaSchool of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South AfricaDepartment of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South AfricaDepartment of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South AfricaDepartment of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South AfricaIn response to abiotic stresses, plants mount comprehensive stress-specific responses which mediate signal transduction cascades, transcription of relevant responsive genes and the accumulation of numerous different stress-specific transcripts and metabolites, as well as coordinated stress-specific biochemical and physiological readjustments. These natural mechanisms employed by plants are however not always sufficient to ensure plant survival under abiotic stress conditions. Biostimulants such as plant growth-promoting rhizobacteria (PGPR) formulation are emerging as novel strategies for improving crop quality, yield and resilience against adverse environmental conditions. However, to successfully formulate these microbial-based biostimulants and design efficient application programs, the understanding of molecular and physiological mechanisms that govern biostimulant-plant interactions is imperatively required. Systems biology approaches, such as metabolomics, can unravel insights on the complex network of plant-PGPR interactions allowing for the identification of molecular targets responsible for improved growth and crop quality. Thus, this review highlights the current models on plant defence responses to abiotic stresses, from perception to the activation of cellular and molecular events. It further highlights the current knowledge on the application of microbial biostimulants and the use of epigenetics and metabolomics approaches to elucidate mechanisms of action of microbial biostimulants.https://www.mdpi.com/2218-1989/11/7/457abiotic stressplant defencesbiostimulantsplant growth-promoting rhizobacteria (PGPR)DNA methylationhistone modifications |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Motseoa M. Lephatsi Vanessa Meyer Lizelle A. Piater Ian A. Dubery Fidele Tugizimana |
spellingShingle |
Motseoa M. Lephatsi Vanessa Meyer Lizelle A. Piater Ian A. Dubery Fidele Tugizimana Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives Metabolites abiotic stress plant defences biostimulants plant growth-promoting rhizobacteria (PGPR) DNA methylation histone modifications |
author_facet |
Motseoa M. Lephatsi Vanessa Meyer Lizelle A. Piater Ian A. Dubery Fidele Tugizimana |
author_sort |
Motseoa M. Lephatsi |
title |
Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives |
title_short |
Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives |
title_full |
Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives |
title_fullStr |
Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives |
title_full_unstemmed |
Plant Responses to Abiotic Stresses and Rhizobacterial Biostimulants: Metabolomics and Epigenetics Perspectives |
title_sort |
plant responses to abiotic stresses and rhizobacterial biostimulants: metabolomics and epigenetics perspectives |
publisher |
MDPI AG |
series |
Metabolites |
issn |
2218-1989 |
publishDate |
2021-07-01 |
description |
In response to abiotic stresses, plants mount comprehensive stress-specific responses which mediate signal transduction cascades, transcription of relevant responsive genes and the accumulation of numerous different stress-specific transcripts and metabolites, as well as coordinated stress-specific biochemical and physiological readjustments. These natural mechanisms employed by plants are however not always sufficient to ensure plant survival under abiotic stress conditions. Biostimulants such as plant growth-promoting rhizobacteria (PGPR) formulation are emerging as novel strategies for improving crop quality, yield and resilience against adverse environmental conditions. However, to successfully formulate these microbial-based biostimulants and design efficient application programs, the understanding of molecular and physiological mechanisms that govern biostimulant-plant interactions is imperatively required. Systems biology approaches, such as metabolomics, can unravel insights on the complex network of plant-PGPR interactions allowing for the identification of molecular targets responsible for improved growth and crop quality. Thus, this review highlights the current models on plant defence responses to abiotic stresses, from perception to the activation of cellular and molecular events. It further highlights the current knowledge on the application of microbial biostimulants and the use of epigenetics and metabolomics approaches to elucidate mechanisms of action of microbial biostimulants. |
topic |
abiotic stress plant defences biostimulants plant growth-promoting rhizobacteria (PGPR) DNA methylation histone modifications |
url |
https://www.mdpi.com/2218-1989/11/7/457 |
work_keys_str_mv |
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