您好，欢迎访问中国热带农业科学院 机构知识库！
中国热带农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Elucidating the molecular mechanisms in phytohormones-induced alleviation of postharvest physiological deterioration in cassava tuberous roots

文献类型： 外文期刊

作者： Ye, Xiaoxue 1 ; Xie, Zhengnan 1 ; Zeng, Liwang 4 ; Ding, Zehong 1 ; Tie, Weiwei 1 ; Yan, Yan 1 ; Huo, Kaisen 1 ; Ma, Jianxing 1 ; Li, Chaochao 1 ; Yan, Fei 6 ; Chen, Yinhua 5 ; Ye, Jianqiu 8 ; Hu, Wei 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Sanya Res Inst, Coconut Res Inst,Natl Key Lab Trop Crop Breeding, Sanya 572024, Peoples R China

2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Biosafety Monitoring & Mol Breeding, Key Lab Biol & Genet Resources Trop Crops, Haikou 571101, Peoples R China

3.Chinese Acad Trop Agr Sci, Hainan Inst Trop Agr Resources, Hainan Key Lab Protect & Utilizat Trop Bioresource, Haikou 571101, Peoples R China

4.Chinese Acad Trop Agr Sci, Inst Sci & Tech Informat, Key Lab Appl Res Trop Crop Informat Technol Hainan, Haikou 571101, Peoples R China

5.Hainan Univ, Sanya Nanfan Res Inst, Sanya 572024, Peoples R China

6.Shaanxi Univ Technol, Coll Biol Sci & Engn, Shaanxi Prov Bioresource Key Lab, Hanzhong 723000, Peoples R China

7.Qinling-Bashan Mt Bioresources Comprehens Dev CIC, Hanzhong 723001, Peoples R China

8.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Haikou 571101, Hainan, Peoples R China

关键词： Cassava; Postharvest physiological deterioration; Glutathione S-Transferases; Transcriptional regulation

期刊名称：FOOD BIOSCIENCE （ 影响因子：4.8； 五年影响因子：5.1 ）

ISSN： 2212-4292

年卷期： 2024 年 61 卷

页码：

收录情况： SCI

摘要： Cassava is a staple food crop in tropical regions, serving as a significant source of carbohydrates. However, rapid postharvest physiological deterioration (PPD) significantly limits the shelf life and utilization of cassava. Despite its importance, the overlapping molecular mechanisms underlying phytohormones-induced PPD alleviation in cassava tuberous roots remain unknown. In this study, the phytohormones ethephon (ET), gibberellic acid (GA), and methyl jasmonate (MeJA) were applied to cassava tuberous roots after harvest. These treatments led to significantly reduced H2O2 accumulation and alleviation of PPD. Transcriptomic analysis revealed shared functions, including transcriptional regulation and oxidoreductase activity, among differentially expressed genes (DEGs) affected by ET, GA, or MeJA. A total of 305 genes encoding antioxidant enzymes were systematically identified, with 151 responsive to phytohormone treatments across ten families. Notably, the expression of 10 Glutathione S-transferase (GST) genes was induced by all three phytohormone treatments, while their expression was suppressed in the absence of phytohormones during PPD. By using co-expression network analysis, DNAbinding motif analysis, and experimental validation using yeast one-hybrid and dual-luciferase assays, a regulatory network involving MeMYB102 and MeZAT11 transcription factors (TFs) that directly promote the expression of MeGST42, MeGST43, MeGST44, and MeGST46 was established. Overall, this study enhances the understanding of the overlapping molecular mechanisms underlying phytohormones-induced alleviation of PPD in cassava, thereby providing genetic resources for developing PPD-resistant cassava.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国热带农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台