期刊
TREES-STRUCTURE AND FUNCTION
卷 30, 期 4, 页码 1057-1071出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00468-015-1344-7
关键词
iTRAQ; Proteomic; Boron-deficiency; Root; Citrus grandis
类别
资金
- earmarked fund for China Agriculture Research System [CARS-27]
- National Natural Science Grant of China [31301740]
- Provincial Natural Science Grant of Fujian, China [2014J05033]
Eighty-six differentially abundant proteins were identified in Citrus grandis roots in response to boron-deficiency using the iTRAQ technique and possible mechanism underlying boron-deficiency tolerance of citrus plants was identified. Boron (B) is an essential element for plant growth and development and adequate B supply is an important determinant of good quality and high yield of crops. B-deficiency is a worldwide problem in agricultural production including citrus. However, little is known about the molecular mechanism of plant tolerance to B-deficiency. Using the iTRAQ technique, 86 differentially abundant proteins were identified from B-deficient Citrus grandis roots. The adaptive strategy of C. grandis roots under B-deficiency was summarized as follows: (1) enhancement of alternative splicing of mRNA and DNA methylation; (2) up-regulation of post-translation modification (PTM) and turnover of proteins; (3) reinforcement of cellular transport; (4) enhancement of antioxidant system and signal transduction. In general, these results increase our understanding of molecular mechanisms underlining the resistance of citrus plant under B-deficiency. Further studies should focus on how do roots perceive B deficiency in the rhizosphere and which pathway or proteins react to this adverse condition in the first place and then stimulates the downstream responses in Citrus plants.
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