Scholarlink

<p>Elevated temperatures significantly impaired the normal growth and development of plants. This study combined physiological and transcriptomic analyses to explore the potential mechanisms of response to heat stress in <i>Abies beshanzuensis</i> M. H. Wu. Under heat stress, <i>A. beshanzuensis</i> exhibited reduced photosynthetic rates and chlorophyll content, accompanied by marked downregulation of photosynthesis-associated genes, suggesting heat-induced photoinhibition and compromised carbon assimilation capacity. Furthermore, the increased activities of MDA, SOD, POD, and CAT suggested that <i>A. beshanzuensis</i> could withstand heat stress by enhancing the activity of antioxidant enzymes to mitigate excess reactive oxygen species and anions. Transcriptome analysis revealed the induction of genes related to heat shock proteins, plant hormone signaling, and antioxidants, which could enhance the tolerance of <i>A. beshanzuensis</i> to high temperatures. In summary, the research demonstrated that <i>A. beshanzuensis</i> could not tolerate high temperatures, which was identified as one of the primary reasons for its endangerment. This study offers a novel approach to investigating the regulatory mechanisms of heat stress.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Resistance mechanism of Abies beshanzuensis under heat stress was elucidated through the integration of physiological and transcriptomic analyses

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月10日

查看全文
  • Likang Zhao,
  • Tao Li,
  • Xiaorong Chen,
  • Rongguang Lan,
  • Zhen Pang,
  • Sumei Wu,
  • Yanyun Xiong,
  • Yiqing Wu,
  • Yougui Wu,
  • Hongfei Lu,
  • Mingjian Yu

摘要

Elevated temperatures significantly impaired the normal growth and development of plants. This study combined physiological and transcriptomic analyses to explore the potential mechanisms of response to heat stress in Abies beshanzuensis M. H. Wu. Under heat stress, A. beshanzuensis exhibited reduced photosynthetic rates and chlorophyll content, accompanied by marked downregulation of photosynthesis-associated genes, suggesting heat-induced photoinhibition and compromised carbon assimilation capacity. Furthermore, the increased activities of MDA, SOD, POD, and CAT suggested that A. beshanzuensis could withstand heat stress by enhancing the activity of antioxidant enzymes to mitigate excess reactive oxygen species and anions. Transcriptome analysis revealed the induction of genes related to heat shock proteins, plant hormone signaling, and antioxidants, which could enhance the tolerance of A. beshanzuensis to high temperatures. In summary, the research demonstrated that A. beshanzuensis could not tolerate high temperatures, which was identified as one of the primary reasons for its endangerment. This study offers a novel approach to investigating the regulatory mechanisms of heat stress.