Reduced Strigolactone Synthesis Weakens Drought Resistance in Tall Fescue via Root Development Inhibition
文献类型： 外文期刊
作者： Zhong, Li 1 ; Yang, Chunyan 2 ; Chen, Yueyu 3 ; Guo, Li 2 ; Liu, Dandan 2 ; Deng, Jijin 1 ; Xu, Yuejun 2 ; Chen, Ying 2 ; Zhao, Degang 1 ;
作者机构： 1.Guizhou Univ, Key Lab Plant Resources Conservat & Germplasm Inno, Guiyang 550025, Peoples R China
2.Guizhou Acad Agr Sci, Guizhou Inst Prataculture, Guiyang 550006, Peoples R China
3.Guizhou Qian Da Inst Ecoenvironm & Hlth, Guiyang 550025, Peoples R China
关键词： drought resistance; root development; strigolactone regulation; tall fescue
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2024 年 14 卷 4 期
页码：
收录情况： SCI
摘要： Drought stress significantly hampers plant growth and productivity. Strigolactones (SLs), a class of carotenoid-derived plant hormones, are recognized for their pivotal role in modulating plant morphology and enhancing drought resistance. Nonetheless, the underlying mechanisms through which SLs influence drought tolerance in tall fescue remain largely unexplored. In this study, we employed TIS108 to inhibit SL biosynthesis under drought conditions and assessed a range of morphological and physiological parameters in tall fescue, including biomass both above and below ground, antioxidase activities, proline and soluble sugar contents, and survival rates, across treatments of drought and drought coupled with TIS108 inhibition. Our findings demonstrate that the suppression of SL synthesis detrimentally affects the drought resilience of tall fescue. Through comprehensive transcriptome sequencing and subsequent qRT-PCR analyses of samples subjected to drought with and without TIS108 treatment, we identified a marked downregulation of genes involved in auxin metabolism and root development. This downregulation correlated with significant reductions in total root length, root surface area, and the number of root tips under drought stress conditions. Collectively, our research elucidates that the inhibition of SL synthesis impairs drought tolerance in tall fescue by constraining root growth and development, mediated through the modulation of auxin metabolism.
- 相关文献
作者其他论文 更多>>
-
Genome-Wide Identification and Expression Analysis of Growth-Regulating Factors in Eucommia ulmoides Oliver (Du-Zhong)
作者：Wang, Ruoruo;Zhu, Ying;Zhao, Degang;Zhao, Degang;Zhao, Degang
关键词：growth-regulating factor; miR396; Eucommia ulmoides; GA(3); expression pattern
-
Feeding Eucommia ulmoides extract enhances protection against high-temperature stress in chicks
作者：Huang, Youwen;Wang, Yifan;Zhao, Degang;Song, Li;Huang, Youwen;Wang, Yifan;Song, Li;Huang, Youwen;Wang, Yifan;Zhao, Degang;Song, Li;Lei, Yue;Gong, Zouxian;Li, Minxue;Zhao, Degang
关键词：eucommia ulmoide; chick; heat tolerance; immunoregulation; cell cycle
-
EuTGA1, a bZIP transcription factor, positively regulates EuFPS1 expression in Eucommia ulmoides
作者：Shi, Ruxia;Lu, Mingyang;Liang, Qing;Zhao, Degang;Zhao, Dan;Zhao, Degang
关键词：Eucommia ulmoides; TGA Transcription factor; EuFPS1; Promoter; Positive regulator
-
Using Isoform Sequencing for De Novo Transcriptome Sequencing and the Identification of Genes Related to Drought Tolerance and Agronomic Traits in Tall Fescue (Festuca arundinacea Schreb.)
作者：Yang, Chunyan;Yan, Xu;Li, Yingzheng;Li, Xiaofeng;He, Ruyu;He, Jianmei;Tang, Qilin;Yang, Chunyan;Zhong, Li;Ou, Erling;Tian, Fang;Yao, Mei;Zhong, Li;Tian, Fang;Yao, Mei;Zhong, Li;Zhao, Degang;Chen, Ming
关键词：tall fescue; isoform sequencing; transcriptome; drought; agronomic traits
-
The mechanisms of hydroxy-a-sanshool from Zanthoxyum bungeanum maxim activates AMPK-HIF1-PKM2 pathway to fix the obesity
作者：Ren, Tingyuan;Xu, Fangyan;Qin, Likang;Zhu, Yuping;Zhao, Degang;Zhao, Degang;Zhao, Degang;Lu, Mintao;Zhao, Degang
关键词：Zanthoxylum bungeanum; Hydroxy-& alpha;-sanshool; High-fat diet; Lipid metabolism; Oxidative stress
-
Preparation of gutta-percha through fermentative degradation of Eucommia ulmoides Oliver leaves by recombinant yeast expressing cellulases from Trichoderma reesei
作者：Xie, Yufeng;Qin, Lijun;Zhao, Degang;Xie, Yufeng;Qin, Lijun;Zhao, Degang;Zhao, Degang
关键词：Eucommia ulmoides; Saccharomyces cerevisiae; Cellulase gene; Fermentation; Gutta-percha
-
Different Tea Germplasms Distinctly Influence the Adaptability of Toxoptera aurantii (Hemiptera: Aphididae)
作者：Lu, Changhao;Zhao, Runa;He, Yingqin;Chen, Wenlong;Lu, Changhao;Jiang, Wenbin;Xie, Bi;He, Yingqin;Shen, Ni;Zhou, Guolan;Zhao, Degang
关键词：Toxoptera aurantii; electropenetrography; feeding behavior; life table; host adaptability
