Scholarlink

<p>The influence of light intensity, including 100% of natural light (L100), 40% of natural light (L40) and 10% of natural light (L10), on the photosynthesis and chlorophyll fluorescence parameters of the rare and endangered plant <i>Emmenopterys henryi</i> oliv. based on transcriptomic and metabolomic analysis were investigated. Results showed that the net photosynthesis rate (<i>P</i><sub>n</sub>) under L40 was higher than that under L100 or L10, which was coincident with higher <i>Fv/Fm</i>, <i>Fv/Fo</i>, <i>qP</i>, <i>NPQ</i>, <i>Y(II)</i>, <i>Y(NPQ)</i> and <i>rETR(Ⅱ)</i> but lowe<i>r Y(NO)</i> under L40 than those under L100 or L10. The common mapping pathways of differentially expressed genes (DEGs) and differentially accumulated metabolites (DAMs) relative to photosynthesis were carbon fixation in photosynthetic organisms and porphyrin and chlorophyll metabolism. Coexpression network analysis showed that the common transcription factors involved in photosynthesis pathway, photosynthesis antenna proteins, carbon fixation in photosynthetic organisms, porphyrin and chlorophyll and carotenoid biosynthesis, such as <i>ERF5</i>, <i>ERF17</i>, <i>ERF16</i>, <i>bHLH100</i>, <i>COL5</i>, <i>DOF12</i>, <i>HHO3</i>, <i>RADL1</i>, <i>MYB17</i>, <i>NAC90</i>, <i>WRK70</i>, <i>WRK29</i>, <i>WRK40</i>, correlated significantly with over 92% of DEGs encoding key enzymes in C<sub>3</sub>, C<sub>4</sub> and CAM pathways, and photosynthesis reaction center subunits, and photosynthethic electron transport-related proteins, and F-type ATPase subunits, and light-harvesting complex chlorophyll a/b binding proteins, and key enzymes in chlorophyll and carotenoid biosynthesis under shade. Further research on the common transcription factors will contribute to demonstrating the accommodation mechanism of photosynthesis to low light in <i>E. henryi</i>.</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

Response of photosynthesis of endangered plant Emmenopterys henryi to low light based on transcriptomic and metabolomic analyses

  • 期刊论文

  • 发表日期：

    2026年1月16日

查看全文
  • Ruili Luo,
  • Wenna Liu,
  • Hongwei Wang,
  • Yu Jing,
  • Huaqiang Zhao,
  • Meifang Hou,
  • Weina Zou,
  • Lili Song

摘要

The influence of light intensity, including 100% of natural light (L100), 40% of natural light (L40) and 10% of natural light (L10), on the photosynthesis and chlorophyll fluorescence parameters of the rare and endangered plant Emmenopterys henryi oliv. based on transcriptomic and metabolomic analysis were investigated. Results showed that the net photosynthesis rate (Pn) under L40 was higher than that under L100 or L10, which was coincident with higher Fv/Fm, Fv/Fo, qP, NPQ, Y(II), Y(NPQ) and rETR(Ⅱ) but lower Y(NO) under L40 than those under L100 or L10. The common mapping pathways of differentially expressed genes (DEGs) and differentially accumulated metabolites (DAMs) relative to photosynthesis were carbon fixation in photosynthetic organisms and porphyrin and chlorophyll metabolism. Coexpression network analysis showed that the common transcription factors involved in photosynthesis pathway, photosynthesis antenna proteins, carbon fixation in photosynthetic organisms, porphyrin and chlorophyll and carotenoid biosynthesis, such as ERF5, ERF17, ERF16, bHLH100, COL5, DOF12, HHO3, RADL1, MYB17, NAC90, WRK70, WRK29, WRK40, correlated significantly with over 92% of DEGs encoding key enzymes in C3, C4 and CAM pathways, and photosynthesis reaction center subunits, and photosynthethic electron transport-related proteins, and F-type ATPase subunits, and light-harvesting complex chlorophyll a/b binding proteins, and key enzymes in chlorophyll and carotenoid biosynthesis under shade. Further research on the common transcription factors will contribute to demonstrating the accommodation mechanism of photosynthesis to low light in E. henryi.