Molecular Mechanisms of Biosynthesis and Regulation of Plant Secondary Metabolites

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (31 October 2024) | Viewed by 757

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Guest Editor
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
Interests: plant secondary metabolites; environmental adaptation
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Special Issue Information

Dear Colleagues,

Plant secondary metabolites are produced within the plants for protection against environmental stresses, including flavonoids, terpenoids, alkaloids, etc. They have been widely used as pharmaceuticals, food additives, etc., for a long time. In recent years, the ecological functions of plant secondary metabolites have gained attention. Understanding the molecular mechanisms pertaining to the biosynthesis and regulation of plant secondary metabolites could help to improve the content of metabolites or create valuable plants with enhanced resistance using molecular breeding. This Special Issue of Plants will highlight the function, regulation, and diversity of plant secondary metabolites, as well as their roles in the interactions of plants and their environment.

Dr. Xinhua Zhang
Guest Editor

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Keywords

  • plant secondary metabolite
  • biosynthesis
  • regulation
  • signal molecule

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Published Papers (1 paper)

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Research

15 pages, 9078 KiB  
Article
Comparative Lipidomics Analysis Provides New Insights into the Metabolic Basis of Color Formation in Green Cotton Fiber
by Tongtong Li, Congcong Zheng, Jianfei Wu, Wei Xu, Tongdi Yan, Junchen Liu, Li Zhang, Zhengmin Tang, Yupeng Fan, Huihui Guo and Fanchang Zeng
Plants 2024, 13(21), 3063; https://doi.org/10.3390/plants13213063 - 31 Oct 2024
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Abstract
Green fiber (GF) is a naturally colored fiber. A limited understanding of its color formation mechanism restricts the improvement of colored cotton quality. This experiment used upland cotton green fiber germplasm 1-4560 and genetic inbred line TM-1; the lipid profiles of green fibers [...] Read more.
Green fiber (GF) is a naturally colored fiber. A limited understanding of its color formation mechanism restricts the improvement of colored cotton quality. This experiment used upland cotton green fiber germplasm 1-4560 and genetic inbred line TM-1; the lipid profiles of green fibers at 30 (white stage) and 35 days post-anthesis (DPA) (early greening stage), as well as those of TM-1 at the same stages, were revealed. Among the 109 differential types of lipids (DTLs) unique to GF, the content of phosphatidylserine PS (16:0_18:3) was significantly different at 30 and 35 DPA. It is speculated that this lipid is crucial for the pigment accumulation and color formation process of green fibers. The 197 DTLs unique to TM-1 may be involved in white fiber (WF) development. Among the shared DTLs in GF35 vs. GF30 and WF35 vs. WF30, sulfoquinovosyldiacyl-glycerol SQDG (18:1_18:1) displays a significant difference in the content change between green fibers and white fibers, potentially affecting color formation through changes in content. The enriched metabolic pathways in both comparison groups are relatively conserved. In the most significantly enriched glycerophospholipid metabolic pathway, 1-acyl-sn-glycero-3-phosphocholine (C04230) only appears in white cotton. This indicates differences in the metabolic pathways between white and green fibers, potentially related to different mechanisms of color formation and fiber development. These findings provide a new theoretical basis for studying cotton fiber development and offer important insights into the specific mechanism of green fiber color formation. Full article
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