JOURNAL ARTICLE

Ethylene constrains stomatal reopening in Fraxinus chinensis post moderate drought.

  • Published In: Tree Physiology, 2023, v. 43, n. 6. P. 883 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Bi, Min-Hui; Jiang, Chao; Brodribb, Timothy; Yang, Yu-Jie; Yao, Guang-Qian; Jiang, Hui; Fang, Xiang-Wen 3 of 3

Abstract

This article investigates the physiological mechanisms regulating the recovery of stomatal conductance (gs) after moderate drought stress in Fraxinus chinensis, a widely distributed woody tree species. The study demonstrates that slow stomatal reopening following rehydration is primarily constrained by sustained ethylene emission rather than by leaf hydraulic conductance or foliar abscisic acid (ABA) levels. Treatment with the ethylene antagonist 1-methylcyclopropene (1-MCP) accelerated stomatal reopening, supporting ethylene's key role in limiting gs recovery and optimizing intrinsic water use efficiency (WUEi) post-drought. These findings highlight ethylene as a critical factor in post-drought gas exchange regulation, offering new insights into plant drought adaptation and suggesting avenues for further research across species.

Additional Information

  • Source:Tree Physiology. 2023/06, Vol. 43, Issue 6, p883
  • Document Type:Article
  • Subject Area:Anatomy and Physiology
  • Publication Date:2023
  • ISSN:0829-318X
  • DOI:10.1093/treephys/tpac144
  • Accession Number:164219404
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