How does PagHSF4 influence salt stress tolerance in poplar?
Label:chem
Topic
Salt stress is a significant environmental challenge for plants, affecting their growth and development. The study investigated the role of PagHSF4 in poplar's response to salt stress.
From: "PagHSF4 mediates the biosynthesis of jasmonic acid and plant hormone signal transduction to regulate the growth and development as well as salt stress tolerance of poplar", Industrial Crops and Products, Volume 234, 15 October 2025, 121582
Answer
Overexpression of PagHSF4 in poplar under salt stress conditions results in pronounced growth inhibition, characterized by reduced plant height and fresh weight. The study suggests that PagHSF4 negatively regulates salt stress tolerance in poplar by downregulating genes involved in hormone signaling pathways that facilitate growth and development. Elevated JA levels under salt stress may also contribute to the observed growth inhibition.
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