Transcriptome analysis of two rice cultivars highlights the role of auxin- and JA-responsive genes under heat stress.

ABSTRACT: Elevated temperatures pose a significant threat to rice crops, necessitating the elucidation of the regulatory mechanisms underlying the response of rice to heat stress. Such comprehension is vital for the cultivation of rice cultivars that can withstand high temperatures, thereby enhancing secure and sustainable food production. In this study, we discovered a rice near-isogenic line, S49, in the Sasanishiki (Sa) genetic background that is resistant to heat stress. Compared with the heat-susceptible cultivar Sa, S49 demonstrated superior growth under heat stress conditions of 43 ℃ for three days. Through a comparative analysis of plant hormones and transcriptomes between these two lines, we observed that S49 presented relatively high levels of indole-3-acetic acid (IAA) and relatively low

SUBMITTER: Deng F 

PROVIDER: S-EPMC12482600 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature