Morphological and metabolic responses to salt stress of rice (Oryza sativa L.) cultivars which differ in salinity tolerance

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Morphological and metabolic responses to salt stress of rice (Oryza sativa L.) cultivars which differ in salinity tolerance
	Chang, Jing ; Cheong, Bo Eng ; Natera, Siria ; Roessner, Ute
刊名	PLANT PHYSIOLOGY AND BIOCHEMISTRY
	2019-11-01
卷号	144 页码:427-435
关键词	Salinity Rice Sugars Organic acids Metabolism
ISSN号	0981-9428
英文摘要	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 in the shikimate pathway, were dramatically decreased in the leaves of all three cultivars, which was regarded as a response to salinity. Many sugars in the leaves of the salt tolerant cultivar (Dendang and Fatimawati) showed earlier increases to salt stress compared to Nipponbare leaves. Moreover, only in the leaves of tolerant cultivars (Dendang and Fatimawati), malate was significantly decreased while sucrose was significantly increased. In Dendang roots, mannitol levels were significantly higher than in Nipponbare roots after 14 days of salt treatment, which may be attributed to its higher salt tolerance. It is proposed that these responses in the more tolerant cultivars are involved in their resistance to high salt stress which may lay the foundation for breeding tolerant rice cultivars.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43391]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Univ Melbourne, Sch Biosci, Melbourne, Vic 3010, Australia 3.Univ Melbourne, Bio21 Inst, Metabol Australia, Melbourne, Vic 3010, Australia
推荐引用方式 GB/T 7714	Chang, Jing,Cheong, Bo Eng,Natera, Siria,et al. Morphological and metabolic responses to salt stress of rice (Oryza sativa L.) cultivars which differ in salinity tolerance[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2019,144:427-435.
APA	Chang, Jing,Cheong, Bo Eng,Natera, Siria,&Roessner, Ute.(2019).Morphological and metabolic responses to salt stress of rice (Oryza sativa L.) cultivars which differ in salinity tolerance.PLANT PHYSIOLOGY AND BIOCHEMISTRY,144,427-435.
MLA	Chang, Jing,et al."Morphological and metabolic responses to salt stress of rice (Oryza sativa L.) cultivars which differ in salinity tolerance".PLANT PHYSIOLOGY AND BIOCHEMISTRY 144(2019):427-435.