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DOI	10.1007/s00425-020-03437-8
	Metabolic changes associated with differential salt tolerance in sorghum genotypes
	de Oliveira, Daniel Farias; Lopes, Lineker de Sousa; Gomes-Filho, Eneas
通讯作者	Gomes, E
来源期刊	PLANTA
ISSN	0032-0935
EISSN	1432-2048
出版年	2020
卷号	252 期号:3
英文摘要	Main conclusion Accumulation of specific metabolites, mainly gamma-aminobutyric acid, polyamines, and proline, was essential to homeostasis regulation and differential salt tolerance in sorghum genotypes. Salinity is severe abiotic stress that limits plant growth and development in arid and semi-arid regions. Survival to abiotic stresses depends on metabolic and sometimes even morphological adjustments. We measured the growth parameters, water relations, the content of ions (Na+, K+, Cl-), compatible solutes [some free amino acids (FAAs) including gamma-aminobutyric acid (GABA) and proline and soluble carbohydrates) and polyamines (PAs), the activity of PAs metabolism enzymes, and metabolomic profile in plants after 14 days of salt stress treatment. These analyses were to evaluate the influence of metabolomic responses of sorghum genotypes exhibiting sensitivity (CSF18) or tolerance (CSF20) to salinity on plant growth. The salinity promoted growth reductions and induced increases in Na(+)and Cl(-)content and decreases in K(+)content. The water status and osmotic potential (psi(o)) were reduced by salt stress, but to minimize damage, especially in the CSF20, the osmolytes and PAs contributed to the osmotic adjustment. The results showed that salinity induced an increase in putrescine (Put) in the sensitive genotype. However, it raised spermidine (Spd), spermine (Spm), and cadaverine (Cad) in the tolerant genotype. In addition, the regulation of polyamine oxidase can be related to Spm and GABA biosynthesis. Differential metabolic changes to salt tolerance include metabolites associated with tricarboxylic acid (TCA) cycle intermediates and the metabolisms of sugars, FAAs, and PAs.
英文关键词	Abiotic stress GABA Osmotic adjustment Polyamine metabolism Proline Sorghum bicolor[L ] moench
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000561953400002
WOS关键词	PROTECTS TOMATO PLANTS ; POLYAMINE METABOLISM ; EXOGENOUS SPERMIDINE ; SALINITY STRESS ; COLORIMETRIC DETERMINATION ; SOLUTE ACCUMULATION ; OSMOTIC ADJUSTMENT ; HEXANOIC ACID ; AMINO-ACIDS ; PROLINE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325774
作者单位	[de Oliveira, Daniel Farias; Lopes, Lineker de Sousa; Gomes-Filho, Eneas] Univ Fed Ceara, Natl Inst Sci & Technol Salin INCTSal CNPq, Dept Biochem & Mol Biol, Fortaleza, Ceara, Brazil
推荐引用方式 GB/T 7714	de Oliveira, Daniel Farias,Lopes, Lineker de Sousa,Gomes-Filho, Eneas. Metabolic changes associated with differential salt tolerance in sorghum genotypes[J],2020,252(3).
APA	de Oliveira, Daniel Farias,Lopes, Lineker de Sousa,&Gomes-Filho, Eneas.(2020).Metabolic changes associated with differential salt tolerance in sorghum genotypes.PLANTA,252(3).
MLA	de Oliveira, Daniel Farias,et al."Metabolic changes associated with differential salt tolerance in sorghum genotypes".PLANTA 252.3(2020).