MeGT2.6 increases cellulose synthesis and active gibberellin content to promote cell enlargement in cassava
文献类型： 外文期刊
作者： Bao, Ruxue 1 ; Zeng, Changying 1 ; Li, Ke 1 ; Li, Mengtao 1 ; Li, Yajun 2 ; Zhou, Xincheng 1 ; Wang, Haiyan 2 ; Wang, Yajie 2 ; Huang, Dongyi 1 ; Wang, Wenquan 1 ; Chen, Xin 1 ;
作者机构： 1.Hainan Univ, Sanya Inst Breeding & Multiplicat, Natl Key Lab Trop Crop Breeding, Sanya 572025, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China
3.Hainan Inst Trop Agr Resources, Key Lab Biol & Genet Resources Trop Crops Hainan P, Haikou 571101, Hainan, Peoples R China
4.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Hainan, Peoples R China
关键词： cassava; gibberellin; cellulose synthase; cell wall; transcription factor
期刊名称：PLANT JOURNAL （ 影响因子：7.2； 五年影响因子：7.9 ）
ISSN： 0960-7412
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Cassava, a pivotal tropical crop, exhibits rapid growth and possesses a substantial biomass. Its stem is rich in cellulose and serves as a crucial carbohydrate storage organ. The height and strength of stems restrict the mechanised operation and propagation of cassava. In this study, the triple helix transcription factor MeGT2.6 was identified through yeast one-hybrid assay using MeCesA1pro as bait, which is critical for cellulose synthesis. Over-expression and loss-of-function lines were generated, and results revealed that MeGT2.6 could promote a significant increase in the plant height, stem diameter, cell size and thickness of SCW of cassava plant. Specifically, MeGT2.6 upregulated the transcription activity of MeGA20ox1 and downregulated the expression level of MeGA2ox1, thereby enhancing the content of active GA3, resulting in a large cell size, high plant height and long stem diameter in cassava. Moreover, MeGT2.6 upregulated the transcription activity of MeCesA1, which promoted the synthesis of cellulose and hemicellulose and produced a thick secondary cell wall. Finally, MeGT2.6 could help supply additional substrates for the synthesis of cellulose and hemicellulose by upregulating the invertase genes (MeNINV1/6). Thus, MeGT2.6 was found to be a multiple regulator; it was involved in GA metabolism and sucrose decomposition and the synthesis of cellulose and hemicellulose.
- 相关文献
作者其他论文 更多>>
-
The draft genome of Nitzschia closterium f. minutissima and transcriptome analysis reveals novel insights into diatom biosilicification
作者：Li, Yajun;He, Jinman;Zhang, Xiuxia;Deng, Xiaodong;Li, Yajun;He, Jinman;Zhang, Xiuxia;Deng, Xiaodong
关键词：Biosilicification; Draft genome; Frustule; Nitzschia closterium f. minutissima; Transcriptome analysis
-
Effect of biodegradable PBAT microplastics on the C and N accumulation of functional organic pools in tropical latosol
作者：Chen, Miao;Zhang, Wen;Chen, Xin;Liu, Huiran;Ning, Ziyu;Fan, Changhua;Wu, Dongming;Li, Qinfen;Chen, Miao;Zhang, Wen;Chen, Xin;Ning, Ziyu;Fan, Changhua;Wu, Dongming;Li, Qinfen;Peng, Licheng;Cao, Ming;Zhang, Meng;Wu, Dongming
关键词：Particulate organic matter; Mineral-associated organic matter; Carbon and nitrogen cycling; Microbial community; Enzyme activity
-
Physicochemical properties, multi-elemental composition, and antioxidant activity of five unifloral honeys from Apis cerana cerana
作者：Wu, Jiao;Zhao, Shan;Chen, Xin;Liu, Junfeng;Gao, Jinglin;Wang, Shijie;Jiu, Yuanda;Liu, Junfeng
关键词：Unifloral honey; Physicochemical properties; Element analysis; Antioxidant activity
-
Organic substitution stimulates ammonia oxidation-driven N2O emissions by distinctively enriching keystone species of ammonia-oxidizing archaea and bacteria in tropical arable soils
作者：Zhang, Qi;Wang, Xiaotong;Fu, Yajun;Zhao, Xiongwei;Zhang, Qi;Chen, Miao;Leng, Youfeng;Wang, Xiaotong;Fu, Yajun;Wang, Danfeng;Zhao, Xiongwei;Gao, Wenlong;Li, Ning;Chen, Xin;Fan, Changhua;Li, Qinfen;Chen, Miao;Gao, Wenlong;Li, Ning;Chen, Xin;Fan, Changhua;Li, Qinfen;Chen, Miao;Gao, Wenlong;Li, Ning;Chen, Xin;Fan, Changhua;Li, Qinfen;Leng, Youfeng;Wang, Danfeng;Fan, Changhua;Li, Qinfen
关键词：Ammonia oxidation; Partial organic substitution; Nitrous oxide; Community structure; Tropical arable soil
-
Distinct heat response molecular mechanisms emerge in cassava vasculature compared to leaf mesophyll tissue under high temperature stress
作者：Wang, Shujuan;Zhang, Huaifang;Shen, Xu;Luo, Jia;Chen, Yinhua;Wang, Wenquan;Wang, Shujuan;Zhou, Xincheng;Zhang, Huaifang;Shen, Xu;Li, Yuanchao;Wang, Wenquan;Pan, Kun
关键词：high temperature; transcriptome; leaf; mid-veins; vascular bundle
-
Integrated Analysis of Morphological, Physiological, Anatomical and Molecular Responses of Cassava Seedlings to Different Light Qualities
作者：Zhou, Qin;Li, Ruimei;Che, Yannian;Ding, Zhongping;Hu, Xinwen;Guo, Jianchun;Zhou, Qin;Li, Ruimei;Che, Yannian;Ding, Zhongping;Yao, Yuan;Liu, Jiao;Wang, Yajie;Guo, Jianchun;Li, Ruimei;Yao, Yuan;Liu, Jiao;Wang, Yajie;Guo, Jianchun;Li, Ruimei;Fernie, Alisdair R.
关键词：light quality; cassava; plant growth; antioxidant; carbohydrate content; gene expression; chlorophyll; tissue culture; in vitro
-
Factors predictive of the biogeographic distribution of comammox Nitrospira in terrestrial ecosystems
作者：Gao, Wenlong;Fan, Changhua;Zhang, Wen;Li, Ning;Liu, Huiran;Chen, Xin;Liu, Yuqin;Wu, Xiaolong;Li, Qinfen;Chen, Miao;Gao, Wenlong;Fan, Changhua;Zhang, Wen;Li, Ning;Liu, Huiran;Chen, Xin;Liu, Yuqin;Wu, Xiaolong;Li, Qinfen;Chen, Miao;Gao, Wenlong;Fan, Changhua;Zhang, Wen;Li, Ning;Liu, Huiran;Chen, Xin;Liu, Yuqin;Wu, Xiaolong;Li, Qinfen;Chen, Miao;Gao, Wenlong;Fan, Changhua;Zhang, Wen;Li, Ning;Liu, Huiran;Chen, Xin;Liu, Yuqin;Wu, Xiaolong;Li, Qinfen;Chen, Miao;Gao, Wenlong;Fan, Changhua;Zhang, Wen;Li, Ning;Liu, Huiran;Chen, Xin;Liu, Yuqin;Wu, Xiaolong;Li, Qinfen;Chen, Miao;Fu, Yajun;Wang, Yongsheng
关键词：Comammox Nitrospira; Ecological preference; Predictive factors; Incomplete nitrifiers; Population co-variation; Random forest modelling
