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Publication Type J
Authors Ma, Q; Bao, AK; Chai, WW; Wang, WY; Zhang, JL; Li, YX; Wang, SM
Author Full Name Ma, Qing; Bao, Ai-Ke; Chai, Wei-Wei; Wang, Wen-Ying; Zhang, Jin-Lin; Li, Yi-Xiao; Wang, Suo-Min
Title Transcriptomic analysis of the succulent xerophyte Zygophyllum xanthoxylum in response to salt treatment and osmotic stress
Source PLANT AND SOIL
Language English
Document Type Article
Author Keywords Zygophyllum xanthoxylum; Xerophyte; Transcriptome; Differentially expressed genes; Salt treatments; Osmotic stress
Keywords Plus DROUGHT TOLERANCE; REACTIVE OXYGEN; K+ HOMEOSTASIS; ABIOTIC STRESS; CATION/H+ EXCHANGERS; POTASSIUM UPTAKE; SALINITY STRESS; NA+ TRANSPORT; WATER-STRESS; WHOLE-PLANT
Abstract Accumulating a great quantity of Na+, maintaining the stability of the concentration of important nutrition elements, increasing the activities of enzymes related to ROS-scavenging are crucial strategies for the xerophyte Zygophyllum xanthoxylum surviving under adverse saline and drought environments; besides, actively regulating the photosynthesis is also a main reason for Z. xanthoxylum to adapt to mild salt conditions. However, the possible molecular basis of above physiological mechanisms is poorly understood. By performing Illumina sequencing combined with a digital gene expression profiling technique, differentially expressed genes in leaves and roots of Z. xanthoxylum under 50 mM NaCl and -0.5 MPa osmotic stress for 6 and 24 h were identified, respectively, mainly focused on genes related to ion transport, ROS-scavenging system and photosynthesis. Under 50 mM NaCl and -0.5 MPa osmotic stress, the transcripts of genes encoding transporters/channels for Na+, K+, Ca2+, Mg2+, nitrogen, phosphate and important micro-elements significantly increased, which is conducive to enhance the uptake and transport of nutrient elements in Z. xanthoxylum; and more importantly, besides Na+, genes related to vacuolar compartmentalization of K+, Ca2+, NO3 (-) in leaves plays vital roles in the adaptation to mild salt condition. Meanwhile, NaCl treatment and osmotic stress significantly increased the transcripts of a number of genes related to ROS-scavenging system, which is beneficial to accelerate the ROS-scavenging under 50 mM NaCl and mitigate the damage of ROS to cell biomembrane system under osmotic stress. In addition, in contrast to osmotic stress, 50 mM NaCl significantly induced the expression of genes encoding proteins participated in photosynthetic electron transport and carbon fixation, while inhibited the expression of genes related to chlorophyll catabolism. The present study identified potential genes underling the principal physiological mechanisms of salt and drought tolerance in Z. xanthoxylum. The results provided abundant genetic resources from desert xerophyte for genetic improvement of stress-resistance of important forage and crop species in arid area.
Author Address [Ma, Qing; Bao, Ai-Ke; Chai, Wei-Wei; Wang, Wen-Ying; Zhang, Jin-Lin; Li, Yi-Xiao; Wang, Suo-Min] Lanzhou Univ, State Key Lab Grassland Agroecosyst, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Peoples R China
Reprint Address Wang, SM (reprint author), Lanzhou Univ, State Key Lab Grassland Agroecosyst, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Peoples R China.
E-mail Address smwang@lzu.edu.cn
Funding Agency and Grant Number National Basic Research Program of China (973 Program) [2014CB138701]; National Natural Science Foundation of China [31501994, 31470503, 31222053]; Specialized Research Fund for the Doctoral Program of Higher Education of China [20130211130001]; Fundamental Research Funds for the Central Universities [lzujbky-2015-41]
Funding Text This work was supported by the National Basic Research Program of China (973 Program, grant No. 2014CB138701), the National Natural Science Foundation of China (grant Nos. 31501994, 31470503 and 31222053), Specialized Research Fund for the Doctoral Program of Higher Education of China (grant No. 20130211130001), and the Fundamental Research Funds for the Central Universities (lzujbky-2015-41).
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Cited Reference Count 69
Times Cited 3
Total Times Cited Count (WoS, BCI, and CSCD) 3
Publisher SPRINGER
Publisher City DORDRECHT
Publisher Address VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN 0032-079X
29-Character Source Abbreviation PLANT SOIL
ISO Source Abbreviation Plant Soil
Publication Date MAY
Year Published 2016
Volume 402
Issue 1-2
Beginning Page 343
Ending Page 361
Digital Object Identifier (DOI) 10.1007/s11104-016-2809-1
Page Count 19
Web of Science Category Agronomy; Plant Sciences; Soil Science
Subject Category Agriculture; Plant Sciences
Document Delivery Number DJ7PU
Unique Article Identifier WOS:000374404100024
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