Journal
PLANTS-BASEL
Volume 10, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/plants10122644
Keywords
wheat; trehalose; high temperature stress; transcriptomic analyses
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Trehalose alleviates oxidative damage caused by high temperature in wheat roots by re-encoding overall gene expression, with different responses observed in two wheat varieties after trehalose pretreatment. This study provides insights into the regulatory effect of trehalose on gene expression in wheat roots under high temperature stress.
High temperature stress seriously limits the yield and quality of wheat. Trehalose, a non-reducing disaccharide, has been shown involved in regulating plant responses to a variety of environmental stresses. This study aimed to explore the molecular regulatory network of exogenous trehalose to improve wheat heat tolerance through RNA-sequencing technology and physiological determination. The physiological data and RNA-seq showed that trehalose reduced malondialdehyde content and relative conductivity in wheat roots, and affecting the phenylpropane biosynthesis, starch and sucrose metabolism, glutathione metabolism, and other pathways. Our results showed that exogenous trehalose alleviates the oxidative damage caused by high temperature, coordinating the effect of wheat on heat stress by re-encoding the overall gene expression, but two wheat varieties showed different responses to high temperature stress after trehalose pretreatment. This study preliminarily revealed the effect of trehalose on gene expression regulation of wheat roots under high temperature stress, which provided a reference for the study of trehalose.
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