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Publication Type J
Authors Wu, H. F., X. L. Liu, L. P. You, L. B. Zhang, D. Zhou, J. H. Feng, J. M. Zhao and J. B. Yu
Title Effects of Salinity on Metabolic Profiles, Gene Expressions, and Antioxidant Enzymes in Halophyte Suaeda salsa
Source Journal of Plant Growth Regulation
Language English
Author Keywords Suaeda salsa Salinity Metabolomics Antioxidant enzyme activity Gene expression clam ruditapes-philippinarum osmotic-stress responses accumulation tolerance seedlings h-1-nmr plants dehydrogenase spectroscopy Plant Sciences
Abstract Halophyte Suaeda salsa is native to the saline soil in the Yellow River Delta. Soil salinity can reduce plant productivity and therefore is the most important factor for the degradation of wetlands in the Yellow River Delta. In this work we characterized the salinity-induced effects in S. salsa in terms of metabolic profiling, antioxidant enzyme activities, and gene expression quantification. Our results showed that salinity inhibited plant growth of S. salsa and upregulated gene expression levels of myo-inositol-1-phosphate synthase (INPS), choline monooxygenase (CMO), betaine aldehyde dehydrogenase (BADH), and catalase (CAT), and elevated the activities of superoxide dismutase (SOD), peroxidase (POD), CAT, and glutathione peroxidase (GPx). The significant metabolic responses included the depleted amino acids malate, fumarate, choline, phosphocholine, and elevated betaine and allantoin in the aboveground part of S. salsa seedlings as well as depleted glucose and fructose and elevated proline, citrate, and sucrose in root tissues. Based on these significant biological markers, salinity treatments induced clear osmotic stress (for example, INPS, CMO, BADH, betaine, proline) and oxidative stress (for example, SOD, POD, CAT, GPx activities), disturbed protein biosynthesis/degradation (amino acids and total protein) and energy metabolism (for example, glucose, sucrose, citrate) in S. salsa.
Author Address [Wu, Huifeng; Liu, Xiaoli; You, Liping; Zhang, Linbao; Zhou, Di; Yu, Junbao] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China. [Wu, Huifeng; Liu, Xiaoli; You, Liping; Zhang, Linbao; Zhou, Di; Zhao, Jianmin; Yu, Junbao] Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. [Liu, Xiaoli; You, Liping; Zhang, Linbao; Zhou, Di] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China. [Feng, Jianghua] Xiamen Univ, Dept Elect Sci, Fujian Key Lab Plasma & Magnet Resonance, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China. Wu, HF (reprint author), Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China. hfwu@yic.ac.cn
ISSN 0721-7595
ISBN 0721-7595
29-Character Source Abbreviation J. Plant Growth Regul.
Publication Date Sep
Year Published 2012
Volume 31
Issue 3
Beginning Page 332-341
Digital Object Identifier (DOI) 10.1007/s00344-011-9244-6
Unique Article Identifier WOS:000307269100006
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