Role of Microbes in Alleviating Crop Drought Stress: A Review

Drought stress is an annual global phenomenon that has devastating effects on crop production, so numerous studies have been conducted to improve crop drought resistance. Plant-associated microbiota play a crucial role in crop health and growth; however, we have a limited understanding of the key pr...

Full description

Bibliographic Details
Main Authors: Zechen Gu, Chengji Hu, Yuxin Gan, Jinyan Zhou, Guangli Tian, Limin Gao
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/13/3/384
_version_ 1797318321184440320
author Zechen Gu
Chengji Hu
Yuxin Gan
Jinyan Zhou
Guangli Tian
Limin Gao
author_facet Zechen Gu
Chengji Hu
Yuxin Gan
Jinyan Zhou
Guangli Tian
Limin Gao
author_sort Zechen Gu
collection DOAJ
description Drought stress is an annual global phenomenon that has devastating effects on crop production, so numerous studies have been conducted to improve crop drought resistance. Plant-associated microbiota play a crucial role in crop health and growth; however, we have a limited understanding of the key processes involved in microbiome-induced crop adaptation to drought stress. In this review, we summarize the adverse effects of drought stress on crop growth in terms of germination, photosynthesis, nutrient uptake, biomass, and yield, with a focus on the response of soil microbial communities to drought stress and plant-microbe interactions under drought stress. Moreover, we review the morpho-physiological, biochemical, and molecular mechanisms underlying the mitigation effect of microbes on crop drought stress. Finally, we highlight future research directions, including the characterization of specific rhizosphere microbiome species with corresponding root exudates and the efficiency of rhizobacteria inoculants under drought conditions. Such research will advance our understanding of the complex interactions between crops and microbes and improve crop resistance to drought stress through the application of beneficial drought-adaptive microbes.
first_indexed 2024-03-08T03:50:40Z
format Article
id doaj.art-5dcd235c369642e2946abe19015126f0
institution Directory Open Access Journal
issn 2223-7747
language English
last_indexed 2024-03-08T03:50:40Z
publishDate 2024-01-01
publisher MDPI AG
record_format Article
series Plants
spelling doaj.art-5dcd235c369642e2946abe19015126f02024-02-09T15:20:17ZengMDPI AGPlants2223-77472024-01-0113338410.3390/plants13030384Role of Microbes in Alleviating Crop Drought Stress: A ReviewZechen Gu0Chengji Hu1Yuxin Gan2Jinyan Zhou3Guangli Tian4Limin Gao5Engineering and Technical Center for Modern Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, ChinaDepartment of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, ChinaDepartment of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, ChinaDepartment of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, ChinaDepartment of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, ChinaNanjing Institute of Agricultural Sciences in Jiangsu Hilly Area, Nanjing 210014, ChinaDrought stress is an annual global phenomenon that has devastating effects on crop production, so numerous studies have been conducted to improve crop drought resistance. Plant-associated microbiota play a crucial role in crop health and growth; however, we have a limited understanding of the key processes involved in microbiome-induced crop adaptation to drought stress. In this review, we summarize the adverse effects of drought stress on crop growth in terms of germination, photosynthesis, nutrient uptake, biomass, and yield, with a focus on the response of soil microbial communities to drought stress and plant-microbe interactions under drought stress. Moreover, we review the morpho-physiological, biochemical, and molecular mechanisms underlying the mitigation effect of microbes on crop drought stress. Finally, we highlight future research directions, including the characterization of specific rhizosphere microbiome species with corresponding root exudates and the efficiency of rhizobacteria inoculants under drought conditions. Such research will advance our understanding of the complex interactions between crops and microbes and improve crop resistance to drought stress through the application of beneficial drought-adaptive microbes.https://www.mdpi.com/2223-7747/13/3/384drought stresscrop growthyieldmicrobial communitiesroot exudatemorpho-physiological alteration
spellingShingle Zechen Gu
Chengji Hu
Yuxin Gan
Jinyan Zhou
Guangli Tian
Limin Gao
Role of Microbes in Alleviating Crop Drought Stress: A Review
Plants
drought stress
crop growth
yield
microbial communities
root exudate
morpho-physiological alteration
title Role of Microbes in Alleviating Crop Drought Stress: A Review
title_full Role of Microbes in Alleviating Crop Drought Stress: A Review
title_fullStr Role of Microbes in Alleviating Crop Drought Stress: A Review
title_full_unstemmed Role of Microbes in Alleviating Crop Drought Stress: A Review
title_short Role of Microbes in Alleviating Crop Drought Stress: A Review
title_sort role of microbes in alleviating crop drought stress a review
topic drought stress
crop growth
yield
microbial communities
root exudate
morpho-physiological alteration
url https://www.mdpi.com/2223-7747/13/3/384
work_keys_str_mv AT zechengu roleofmicrobesinalleviatingcropdroughtstressareview
AT chengjihu roleofmicrobesinalleviatingcropdroughtstressareview
AT yuxingan roleofmicrobesinalleviatingcropdroughtstressareview
AT jinyanzhou roleofmicrobesinalleviatingcropdroughtstressareview
AT guanglitian roleofmicrobesinalleviatingcropdroughtstressareview
AT limingao roleofmicrobesinalleviatingcropdroughtstressareview