The Tree Biology Team of SWUST Has Made Important Progress in the Study of the Molecular Mechanism of Plant Thermomorphogenesis

Post Time:2023-11-06Author:Ou YongbinPoint: 10设置

Recently, the tree biology team of SWUST, together with Sichuan University, published the paper The Heat Response Regulators HSFA1s Promote Arabidopsis Thermomorphogenesis Via Stabilizing PIF4 During the Day in Science Advances. Prof. Yao Yinan from SWUST and Prof. Zhang Dawei from Sichuan University (SZU) are the co-corresponding authors. Dr. Wenrong Tan, Associate Professor of SWUST, and master candidate Chen Junhu are the co-first authors. 

High temperature caused by global warming has a profound impact on plant growth, development, and geographic distribution. However, the molecular mechanisms by which plants adapt to high-temperature environments are not well understood. This study found that HSFA1, the heat stress regulator, could promote the formation of thermal morphogenesis and make plants show morphological adaptation to high temperature in the daytime. At the same time, HSFA1 activated by high temperature can also activate the heat shock response of plants and make them have stronger heat tolerance. Therefore, our Tree Biology team has proposed a new regulatory model of plant adaptation to daytime high-temperature environment and analyzed the molecular mechanism by which members of the HSFA1s family, the core regulators of heat shock response, integrate light and temperature signals to regulate daytime thermomorphogenesis in plants. This further improved the regulatory network of plant adaptation to high-temperature environment and provided implications for the molecular design and breeding of stronger high-temperature-adapted crops.

This study was supported by the National Natural Science Foundation of China, the Natural Science Foundation of Sichuan Province, and the Doctoral Innovation Fund of SWUST.

In recent years, the tree biology team of SWUST has made important progress in the fields of forest fire prevention and plant-environment interactions, and the related results have been published in top journals such as Science, Science Advances and Nature Communications.

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Edited by Wang Liming

Translated by Zhao Qinglu

Contributions by School of Life Sciences and Engineering of SWUST