NDLI: Time-course of ionic responses and proteomic analysis of a Tibetan wild barley at early stage under salt stress

Content Provider	Springer Nature Link
Author	Shen, Qiufang Fu, Liangbo Qiu, Long Xue, Feng Zhang, Guoping Wu, Dezhi
Copyright Year	2016
Abstract	Barley (Hordeum vulgare L.) is well known for its relatively high salt tolerance among cereal crops. However, the genetic variation of cultivated barley becomes narrower due to continuous artificial selection and breeding processes. Compared with cultivated barley, wild barley contains wider genetic variation and abundant sources for abiotic stress tolerance, considering as an elite resource for mechanism study on salt tolerance. In this study, Tibetan wild barley accession XZ113 identified with high salt tolerance, was used to investigate ionic responses and to identify proteins involved in salt tolerance in roots and shoots at early stage of salt stress, during 48 h. Exposed to salinity, shoot growth is more sensitive than root growth. Conversely, K/Na ratio in the shoots was larger than that in the roots, and both were above 1.0. Steady-state K+ flux experiment showed XZ113 had a strong K+-retaining ability under salt stress, maybe contributing to its good performance of the absolute growth rate. Proteomic results suggested that monodehydroascorbate reductase and peroxidases related to reactive oxygen species scavenging in the roots and phosphoglycerate kinase, triosephosphate isomerase and sedoheptulose-1,7-bisphosphatase associated with photosynthesis and metabolisms in the shoots, played important roles in salt tolerance at early stage of salinity in wild barley.
Starting Page	11
Ending Page	21
Page Count	11
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	81
Issue Number	1
e-ISSN	15735087
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-05-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Wild barley Salt tolerance Ion homeostasis Proteomics Time-course Plant Sciences Plant Anatomy/Development Plant Physiology Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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