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31 May 2023 Role of small RNAs in plant stress response and their potential to improve crops
Raphael Dzinyela, Abdul Razak Alhassan, Ali Kiani-Pouya, Fatemeh Rasouli, Liming Yang, Ali Movahedi
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Abstract

Increasing plant resistance to biotic and abiotic stresses may help to address global food insecurity. We review small RNA (sRNA) research and consider the potential of sRNA-based technologies as strategies to enhance plant resistance to environmental stresses. sRNAs are essential non-coding signalling molecules 21–24 nucleotides in length that are involved in various reproduction, defence and plant development processes. sRNAs guide regulatory processes during development and environmental adaptation at the DNA or RNA level in various eukaryotic organisms. They control gene expression in eukaryotes via a process commonly termed RNA silencing. sRNAs are responsible for suppressing some pathogenic genes in eukaryotes and pests. This suppression offers the potential to protect plant growth and development through a new generation of eco-friendly RNA-based fungicides or insecticides that are specific in their target and can easily control multiple diseases simultaneously. This review focuses on sRNA production in crop species, the role of sRNAs in plant responses to a range of stresses, and their prospective applications, highlighting sRNA-based technology and applications in crops under stress. This review could serve as a reference for future researchers working on small RNAs and the roles they play in plant response to environmental stresses.

Raphael Dzinyela, Abdul Razak Alhassan, Ali Kiani-Pouya, Fatemeh Rasouli, Liming Yang, and Ali Movahedi "Role of small RNAs in plant stress response and their potential to improve crops," Crop and Pasture Science 74(12), 1116-1127, (31 May 2023). https://doi.org/10.1071/CP22385
Received: 28 November 2022; Accepted: 4 May 2023; Published: 31 May 2023
KEYWORDS
bacteria resistance
drought stress
Environmental stress
miRNAs
plant improvement
RNA silencing
RNAi
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