论文库首页  论文库
 
论文编号:
论文题目: TCP24 modulates secondary cell wall thickening and anther endothecium development
英文论文题目: TCP24 modulates secondary cell wall thickening and anther endothecium development
第一作者: Wang, H; Mao, YF; Yang, J; He, YK
英文第一作者: Wang, H; Mao, YF; Yang, J; He, YK
联系作者: He, YK (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Fenglin Rd 300, Shanghai 200032, Peoples R China.
英文联系作者: He, YK (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Fenglin Rd 300, Shanghai 200032, Peoples R China.
外单位作者单位:
英文外单位作者单位:
发表年度: 2015
卷: 6
期:
页码: -
摘要: miR319-targeted TCP genes are believed to regulate cell division in leaves and floral organs. However, it remains unknown whether these genes are involved in cell wall development. Here, we report that TCP24 negatively regulates secondary wall thickening in floral organs and roots. The overexpression of the miR319a-resistant version of TCP24 in Arabidopsis disrupted the thickening of secondary cell walls in the anther endothecium, leading to male sterility because of arrested anther dehiscence and pollen release. Several genes linked to secondary cell wall biogenesis and thickening were down-regulated in these transgenic plants. By contrast, the inhibition of TCP24 using the ectopic expression of a TCP24-SRDX repressor fusion protein, or the silencing of TCP genes by miR319a overexpression, increased cell wall lignification and the enhanced secondary cell wall thickening. Our results suggest that TCP24 acts as an important regulator of secondary cell wall thickening and modulates anther endothecium development.
英文摘要: miR319-targeted TCP genes are believed to regulate cell division in leaves and floral organs. However, it remains unknown whether these genes are involved in cell wall development. Here, we report that TCP24 negatively regulates secondary wall thickening in floral organs and roots. The overexpression of the miR319a-resistant version of TCP24 in Arabidopsis disrupted the thickening of secondary cell walls in the anther endothecium, leading to male sterility because of arrested anther dehiscence and pollen release. Several genes linked to secondary cell wall biogenesis and thickening were down-regulated in these transgenic plants. By contrast, the inhibition of TCP24 using the ectopic expression of a TCP24-SRDX repressor fusion protein, or the silencing of TCP genes by miR319a overexpression, increased cell wall lignification and the enhanced secondary cell wall thickening. Our results suggest that TCP24 acts as an important regulator of secondary cell wall thickening and modulates anther endothecium development.
刊物名称: FRONTIERS IN PLANT SCIENCE
英文刊物名称: FRONTIERS IN PLANT SCIENCE
论文全文:
英文论文全文:
全文链接:
其它备注:
英文其它备注:
学科: Plant Sciences
英文学科: Plant Sciences
影响因子: 3.948
第一作者所在部门:
英文第一作者所在部门:
论文出处:
英文论文出处:
论文类别: Article
英文论文类别: Article
参与作者:
英文参与作者:
 
2014 中国科学院上海生命科学研究院 版权所有