您好,欢迎访问中国农业科学院 机构知识库!

Physiological, molecular, and morphological adjustment to waterlogging stress in ramie and selection of waterlogging-tolerant varieties

文献类型: 外文期刊

作者: Shao, Deyi 1 ; Abubakar, Aminu Shehu 1 ; Chen, Jikang 1 ; Zhao, Haohan 1 ; Chen, Ping 1 ; Chen, Kunmei 1 ; Wang, Xiaofei 1 ; Shawai, Rabiu Sani 4 ; Chen, Yu 1 ; Zhu, Aiguo 1 ; Gao, Gang 1 ;

作者机构: 1.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Peoples R China

2.Nankai Univ, Coll Life Sci, Dept Plant Biol & Ecol, Tianjin Key Lab Prot Sci, Tianjin 300071, Peoples R China

3.Bayero Univ Kano, Dept Agron, PMB 3011, Kano, Nigeria

4.Kano Univ Sci & Technol Wudil, Fac Agr & Agr Technol, Dept Crop Sci, Kano 713281, Nigeria

5.Changsha Med Univ, Hunan Prov Key Lab TCM Agr Biogenom, Changsha 410219, Peoples R China

6.Yuelushan Lab, Changsha 410082, Peoples R China

关键词: Ramie; Waterlogging; Antioxidant enzymes; Osmoregulatory substances; Transcriptome

期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:5.7; 五年影响因子:6.4 )

ISSN: 0981-9428

年卷期: 2024 年 216 卷

页码:

收录情况: SCI

摘要: Waterlogging stress is a severe abiotic challenge that impedes plant growth and development. Ramie ( Boehmeria nivea L.) is a Chinese traditional characteristic economic crop, valued for its fibers and by-products. To investigate the waterlogging tolerance of ramie and provide the scientific basis for selecting waterlogging-tolerant ramie varieties, this study examined the morphological, physiological, biochemical, and molecular responses of 15 ramie germplasms (varieties) under waterlogging stress. The results revealed varied impacts of waterlogging stress across the 15 ramie varieties, characterized by a decrease in SPAD values, net photosynthesis rates, and relative water content of ramie leaves, along with a significant increase in relative conductivity and the activities of antioxidant enzymes such as SOD, POD, CAT, and APX. Additionally, the levels of soluble sugars, soluble proteins, and free proline exhibited varying degrees of increase. Through Principal Component Analysis (PCA), ZZ_2 and ZSZ_1 were identified as relatively tolerant and susceptible varieties. Transcriptome analysis showed that the differential expressed genes between ZZ_2 and ZSZ_1 were significantly enriched in metabolic pathways, ascorbate and aldarate metabolism, and inositol phosphate metabolism, under waterlogging stress. In addition, the expression of hypoxia-responsive genes was higher in ZZ_2 than in ZSZ_1 under waterlogging stress. These differences might account for the varied waterlogging responses between the two varieties. Therefore, this study explored the morpho-physiological responses of ramie under waterlogging stress and identified the molecular mechanisms involved, providing valuable insights for improving ramie varieties and breeding new ones.

  • 相关文献
作者其他论文 更多>>