您好,欢迎访问中国热带农业科学院 机构知识库!

Transcriptional response to petiole heat girdling in cassava

文献类型: 外文期刊

作者: Zhang, Yang 1 ; Ding, Zehong 1 ; Ma, Fangfang 2 ; Chauhan, Raj Deepika 2 ; Allen, Doug K. 2 ; Brutnell, Thomas P. 2 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

2.Donald Danforth Plant Sci Ctr, St Louis, MO 63132 USA

3.Agr Res Serv, USDA, Plant Genet Res Unit, St Louis, MO 63132 USA

4.Shandong Agr Univ, Coll Agron Sci, Tai An 271018, Shandong, Peoples R China

期刊名称:SCIENTIFIC REPORTS ( 影响因子:4.379; 五年影响因子:5.133 )

ISSN: 2045-2322

年卷期: 2015 年 5 卷

页码:

收录情况: SCI

摘要: To examine the interactions of starch and sugar metabolism on photosynthesis in cassava, a heat-girdling treatment was applied to petioles of cassava leaves at the end of the light cycle to inhibit starch remobilization during the night. The inhibition of starch remobilization caused significant starch accumulation at the beginning of the light cycle, inhibited photosynthesis, and affected intracellular sugar levels. RNA-seq analysis of heat-treated and control plants revealed significantly decreased expression of genes related to photosynthesis, as well as N-metabolism and chlorophyll biosynthesis. However, expression of genes encoding TCA cycle enzymes and mitochondria electron transport components, and flavonoid biosynthetic pathway enzymes were induced. These studies reveal a dynamic transcriptional response to perturbation of sink demand in a single leaf, and provide useful information for understanding the regulations of cassava under sink or source limitation.

  • 相关文献
作者其他论文 更多>>