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Identification of wheat non-specific lipid transfer proteins involved in chilling tolerance

Content Provider	Springer Nature Link
Author	Yu, Guanghui Hou, Wenqian Du, Xuye Wang, Liang Wu, Hongyan Zhao, Lanfei Kong, Lingrang Wang, Hongwei
Copyright Year	2014
Abstract	Three TaLTPs were found to enhance chilling tolerance of transgenic Arabidopsis, which were characterized by analyzes of promoter-GUS activity, subcellular localization, chromosomal location and transcriptional profile. Non-specific lipid transfer proteins (nsLTP) are abundantly expressed in plants, however, their functions are still unclear. In this study, we primarily characterized the functions of 3 type I TaLTP genes that were localized on chromosomes 3A, 3B, and 5D, respectively. The transcripts of TaLTPIb.1 and TaLTPIb.5 were induced under chilling, wound, and drought conditions, while TaLTPId.1 was only up-regulated by dark treatment. All the 3 TaLTP genes could be stimulated by the in vitro treatment of salicylic acid, while TaLTPId.1 was also positively regulated by methyljasmonic acid. Furthermore, the promoter-reporter assay of TaLTPIb.1 in the transgenic brachypodium showed a typical epidermis-specific expression pattern of this gene cluster. When fused with EGFP, all the 3 proteins were shown to localize on the plasma membrane in transgenic tobacco, although a signal in chloroplasts was also observed for TaLTPId.1. Heterogeneous overexpression of each of the TaLTP genes in Arabidopsis resulted in longer root length compared with wild type plants under chilling condition. These results suggest that type I TaLTPs may have a conserved functionality in chilling tolerance by lipid permeation in the plasma membrane of epidermal cells. On the other hand, the type I TaLTPs may exert functional divergence mainly through regulatory subfunctionalization.
Starting Page	1757
Ending Page	1766
Page Count	10
File Format	PDF
ISSN	07217714
Journal	Plant Cell Reports
Volume Number	33
Issue Number	10
e-ISSN	1432203X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-07-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Non-specific lipid transfer protein (nsLTP) Epidermis Chilling Subfunctionalization Cell Biology Plant Sciences Biotechnology Plant Biochemistry
Content Type	Text
Resource Type	Article
Subject	Plant Science Medicine Agronomy and Crop Science

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Identification of wheat non-specific lipid transfer proteins involved in chilling tolerance.

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Identification of wheat non-specific lipid transfer proteins involved in chilling tolerance

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Identification of wheat non-specific lipid transfer proteins involved in chilling tolerance.

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The barley lipid transfer protein, BLT101, enhances cold tolerance in wheat under cold stress

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Identification of wheat non-specific lipid transfer proteins involved in chilling tolerance