alexa Differential Proteomic Analysis of Chilling Stress Responses in Tea Plant [Camellia sinensis (L.) O. Kuntze]
E- ISSN: 2320 - 3528
P- ISSN: 2347 - 2286

Research & Reviews: Journal of Microbiology and Biotechnology
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Research Article

Differential Proteomic Analysis of Chilling Stress Responses in Tea Plant [Camellia sinensis (L.) O. Kuntze]

Jing Wang1, Yi Wang2, Zhao-Tang Ding1*, Yu Wang1, Lei Zhao1, Yu-He Pei3, Fang-Meng Duan3, Haiwei Sun4

1Tea Research Institute, Qingdao Agricultural University, Qingdao, Shandong 266109, P R China

2Qingdao Fruits, Tea and Flowers Workstation, Shandong 266071, P R China

3Department of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, P R China

4Taishan Academy of Forestry Sciences, Taian City, Shandong 271000, P R China

*Corresponding Author:
Zhao-Tang Ding
Tea Research Institute
Qingdao Agricultural University
Qingdao,Shandong 266109
P R China
Tel: +86-532-88030231
Fax: +86-532-88030231
E-mail: [email protected]

Received date: 15/06/2016; Accepted date: 25/06/2016; Published date: 04/07/2016

 

Abstract

Tea plant (Camellia sinensis (L.) O. Kuntze) is sensitive to low temperature and highly susceptible to damage in chilling stress. To examine the responses of tea leaves to chilling stress, changes in protein expression were analyzed using a proteomic approach. One-year-old tea seedings were treated at 4°C for 24 h and then recovered for 24 h. By fractionation, approximate 1000 protein spots were separated and visualized on CBB-stained 2-D gels. A total of 10 protein spots were increased, 9 were decreased and 4 proteins were induced. MALDITOF/ TOF mass spectrometry analysis allowed the identification of 18 differentially expressed proteins, including well known and novel coldresponsive proteins. Proteins showed enhanced degradation during chilling stress, especially the photosynthetic proteins. The identified proteins are involved in several processes, such as signal transduction, transport, disease/defense, photosynthesis, and carbohydrate, energy, pyrimidine and nitrogen metabolisms. This study provides new insights into the complex molecular networks within tea leaves involved in the adaptation to chilling stress and stress signals.

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