Morphological and metabolic responses to salt stress of rice (Oryza sativa L.) cultivars which differ in salinity tolerance
Jing Chang, Bo Eng Cheong, Siria Natera, Ute Roessner
Plant Physiology and Biochemistry | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER | Published : 2019
Salinization is one of the most important abiotic stressors for crop growth and productivity. Rice (Oryza sativa L.), as the major food source around the world, is very sensitive to salt, especially at seedling stage. In order to examine how salt stress influences the metabolism of rice, we compared the levels of a range of sugars and organic acids in three rice cultivars with different tolerance under salt stress over time. According to the morphological result, the shoot length and root fresh weight were only affected by salinity in the salt sensitive cultivar (Nipponbare). The responses of metabolites to salinity were time-, tissue- and cultivar-dependent. Shikimate and quinate, involved ..View full abstract
Awarded by University of Chinese Academy of Sciences (UCAS)
Jing Chang thanks for the support of the University of Chinese Academy of Sciences (UCAS, UCAS37) Joint PhD Training Program and the University of Melbourne Study Abroad Scholarship Program. Metabolite analysis was carried out at Metabolomics Australia (School of BioSciences, University of Melbourne, Australia), which is a National Collaborative Research Infrastructure Strategy initiative under Bioplatforms Australia Pty Ltd (http://www.bioplatforms.com/). The work was funded through an Australian Research Council Future Fellowship awarded to Ute Roessner. We would like to thank the help from Associate Prof. Alexander Johnson Lab (University of Melbourne), who provided rice seeds, and Dr. Julien Pierre Bonneau and Dr. Laura Moreno who helped with plant growth.