NDLI: Water soluble carbohydrate accumulation in Triticum aestivum

Content Provider	Semantic Scholar
Author	Cl, McIntyre Tabe, Linda Cld, Jenkins Shorter, Ray
Copyright Year	2008
Abstract	Water soluble carbohydrates (WSC) accumulated in wheat stems are an important carbon source for grain filling. Variation in stem WSC concentration among wheat genotypes is one of the genetic factors thought to influence grain weight and yield under water-limited environments. Here, we describe the molecular dissection of carbohydrate metabolism in the stems of Triticum aestivum at the WSC accumulation phase. Gene expression profiling analysis of carbohydrate metabolic enzymes revealed that the mRNA levels of two fructan synthetic enzyme families (1-SST and 6SFT) in the stem were positively correlated with stem WSC and fructan concentrations, while the mRNA levels of enzyme families involved in sucrose hydrolysis were inversely correlated with WSC concentration. The transcript levels of two SNF1-related protein kinases were also positively correlated with stem WSC concentration and appeared to be co-regulated with the expression levels of 6-SFT and 1-SST in wheat stems. The data suggest that differential carbon partitioning in the wheat stem is one mechanism that contributes to variation in WSC accumulation.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://ses.library.usyd.edu.au/bitstream/2123/3453/1/P302.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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