Comparative Proteomic Analysis of Gossypium thurberi in Response to Verticillium dahliae Inoculation

International Journal of Molecular Sciences

Weiping Fang⁴  Deyi Xie⁴  Heqin Zhu³  Wu Li⁴  Zhenzhen Xu³  Lirong Yang²  Zhifang Li³  Li Sun¹  Jinxia Wang⁵  Lihong Nie⁴  Zhongjie Tang⁴  Shuping Lv⁴  Fu𠆚n Zhao⁴  Yao Sun⁴  Yuanming Zhao⁴  Jianan Hou⁴  Xiaojie Yang⁴ 

[1] Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409, USA; E-Mail:;Plant Protection Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; E-Mail:;State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; E-Mails:;Economic Crop Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China; E-Mails:;Department of Crop Biotechnology, Agronomy College, Henan Agricultural University, Zhengzhou 450002, China; E-Mail:

关键词: cotton;    defense response;    fungus;    iTRAQ;   

DOI  :  10.3390/ijms161025121

来源: mdpi

【 摘 要 】

Verticillium wilt is threatening cotton productivity globally. This disease is caused by soil-borne Verticillium dahliae which directly infects cotton roots, and exclusively colonizes and occludes xylem vessels, finally resulting in necrosis, defoliation, and most severely, plant death. For the first time, iTRAQ (isobaric tags for relative and absolute quantification) was applied to screen the differentially expressed proteins of Gossypium thurberi inoculated with V. dahliae. A total of 6533 proteins were identified from the roots of G. thurberi after inoculation with V. dahliae, and 396 showed up- and 279 down-regulated in comparison to a mock-inoculated roots. Of these identified proteins, the main functional groups were those involved in cell wall organization and reinforcement, disease-resistant chemicals of secondary metabolism, phytohormone signaling, pathogenesis-related proteins, and disease-resistant proteins. Physiological and biochemical analysis showed that peroxidase activity, which promotes the biosynthesis and accumulation of lignin, was induced early in the hypocotyl after inoculation with V. dahliae. Similarly, salicylic acid also accumulated significantly in hypocotyl of the seedlings after inoculation. These findings provide an important knowledge of the molecular events and regulatory networks occurring during G. thurberi-V. dahliae interaction, which may provide a foundation for breeding disease-resistance in cotton.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.