caa a22 4500 606218084 CHVBK 20210128101111.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s11104-014-2309-0 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2309-0 Metabolic response of maize ( Zea mays L.) plants to combined drought and salt stress [Elektronische Daten] [Caixia Sun, Xiaoxiao Gao, Jianqi Fu, Jiahao Zhou, Xiaofei Wu] Aims: Maize is exposed to the combined stresses of water deficiency and soil salinity within its natural habitat, particularly in irrigated and dry land agricultural areas. Hence, the effect of these combined stresses on the metabolic response of maize plants was determined to improve understanding of stress tolerance mechanisms of maize in the field. Methods: Maize plants were either singly or simultaneously exposed to soil water deficiency and high salinity for 7 d. Physiological characteristics were analyzed and metabolic changes were quantified by conducting 1H NMR-based analysis of polar and non-polar fractions of maize leaf extracts. Results: The response of maize plants to the combined stresses was distinct from that of plants subjected to either drought stress or salt stress alone at both the metabolic and physiological level. Maize plants showed a new pattern of metabolic response to the combined stresses. Some metabolites specifically responded to combined stresses and differed from those caused by each stress applied individually. The global metabolic response of maize to the combined stresses was related to the physiological processes. Conclusions: Our results provide valuable insights into the response of maize to combined drought and salt stress by linking stress-related physiological responses to changes in metabolites. Springer International Publishing Switzerland, 2014 Zea mays L nationallicence Combination stress nationallicence Water deficiency nationallicence High salinity nationallicence Metabolomics nationallicence Sun Caixia College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut Gao Xiaoxiao College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut Fu Jianqi College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut Zhou Jiahao College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut Wu Xiaofei College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 99-117 0032-079X 388:1-2<99 2015 388 11104 https://doi.org/10.1007/s11104-014-2309-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2309-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sun Caixia College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Gao Xiaoxiao College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Fu Jianqi College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Zhou Jiahao College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut NATIONALLICENCE 700 1- Wu Xiaofei College of Life and Health Sciences, Northeastern University, P. O. Box 284, 110004, Shenyang, People's Republic of China aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 99-117 0032-079X 388:1-2<99 2015 388 11104