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Review
. 2022 Jun 24;10(7):1286.
doi: 10.3390/microorganisms10071286.

A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

Shifa Shaffique  1 , Muhammad Aaqil Khan  1 , Shabir Hussain Wani  2 , Anjali Pande  3 , Muhammad Imran  1 , Sang-Mo Kang  1 , Waqas Rahim  3 , Sumera Afzal Khan  4 , Dibya Bhatta  1 , Eun-Hae Kwon  1 , In-Jung Lee  1
Affiliations
Review

A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

Shifa Shaffique et al. Microorganisms. .

Abstract

Among abiotic stresses, heat stress is described as one of the major limiting factors of crop growth worldwide, as high temperatures elicit a series of physiological, molecular, and biochemical cascade events that ultimately result in reduced crop yield. There is growing interest among researchers in the use of beneficial microorganisms. Intricate and highly complex interactions between plants and microbes result in the alleviation of heat stress. Plant-microbe interactions are mediated by the production of phytohormones, siderophores, gene expression, osmolytes, and volatile compounds in plants. Their interaction improves antioxidant activity and accumulation of compatible osmolytes such as proline, glycine betaine, soluble sugar, and trehalose, and enriches the nutrient status of stressed plants. Therefore, this review aims to discuss the heat response of plants and to understand the mechanisms of microbe-mediated stress alleviation on a physio-molecular basis. This review indicates that microbes have a great potential to enhance the protection of plants from heat stress and enhance plant growth and yield. Owing to the metabolic diversity of microorganisms, they can be useful in mitigating heat stress in crop plants. In this regard, microorganisms do not present new threats to ecological systems. Overall, it is expected that continued research on microbe-mediated heat stress tolerance in plants will enable this technology to be used as an ecofriendly tool for sustainable agronomy.

Keywords: bio stimulant; heat stress; microbes.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationship that could be construed as potential conflict of interest.

Figures

Figure 1
Figure 1
Metabolic reprogramming of the plant cell under heat stress.
Figure 2
Figure 2
The illustration represents the role of plant growth-promoting rhizobacteria in mitigating heat stress in plants. PGPRs promote plant growth and development by modulating the physiological and molecular processes in plants.
See this image and copyright information in PMC

References

    1. Ali M.G., Ahmed M., Ibrahim M.M., El Baroudy A.A., Ali E.F., Shokr M.S., Aldosari A.A., Majrashi A., Kheir A. Optimizing sowing window, cultivar choice, and plant density to boost maize yield under RCP8. 5 climate scenario of CMIP5. Int. J. Biometeorol. 2022;66:971–985. doi: 10.1007/s00484-022-02253-x. - DOI - PubMed
    1. Ejaz M., Abbas G., Fatima Z., Iqbal P., Raza M.A., Kheir A., Ahmed M., Kakar K.M., Ahmad S. Modelling Climate Uncertainty and Adaptations for Soybean-Based Cropping System. Int. J. Plant Prod. 2022;16:235–250. doi: 10.1007/s42106-022-00190-8. - DOI
    1. Ding Z., Ali E.F., Elmahdy A.M., Ragab K.E., Seleiman M.F., Kheir A.M. Modeling the combined impacts of deficit irrigation, rising temperature and compost application on wheat yield and water productivity. Agric. Water Manag. 2021;244:106626. doi: 10.1016/j.agwat.2020.106626. - DOI
    1. Marchin R.M., Backes D., Ossola A., Leishman M.R., Tjoelker M.G., Ellsworth D.S. Extreme heat increases stomatal conductance and drought-induced mortality risk in vulnerable plant species. Glob. Chang. Biol. 2022;28:1133–1146. doi: 10.1111/gcb.15976. - DOI - PMC - PubMed
    1. Banerjee A., Roychoudhury A. Plant Metabolites and Regulation under Environmental Stress. Elsevier; Amsterdam, The Netherlands: 2018. Small heat shock proteins: Structural assembly and functional responses against heat stress in plants; pp. 367–376.

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