ArticlePlant physiology2008
Molecular dissection of variation in carbohydrate metabolism related to water-soluble carbohydrate accumulation in stems of wheat.
Article in Plant physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.
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58 citing papers in PubMed, 251 citations in OpenAlex.
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- A 'wiring diagram' for source strength traits impacting wheat yield potential.Journal of experimental botany · 2023Review
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- Heat and drought induced transcriptomic changes in barley varieties with contrasting stress response phenotypes.Frontiers in plant science · 2022Article
- GWAS to Identify Novel QTNs for WSCs Accumulation in Wheat Peduncle Under Different Water Regimes.Frontiers in plant science · 2022Article
- Genome-wide profiling of long noncoding RNAs involved in wheat spike development.BMC genomics · 2021Article
- Suppressed ABA signal transduction in the spike promotes sucrose use in the stem and reduces grain number in wheat under water stress.Journal of experimental botany · 2020Article
- Genome-wide association analysis of stem water-soluble carbohydrate content in bread wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Construction of a high-density SNP-based genetic map and identification of fruit-related QTLs and candidate genes in peach [Prunus persica (L.) Batsch].BMC plant biology · 2020Article
- Comparative Evaluation of Two Hyaluronic Acid Gel Products for the Treatment of Interdental Papillary Defects.Acta stomatologica Croatica · 2020Article
- Coordination of carbon and nitrogen accumulation and translocation of winter wheat plant to improve grain yield and processing quality.Scientific reports · 2020Article
- Drought Stress Tolerance in Wheat and Barley: Advances in Physiology, Breeding and Genetics Research.International journal of molecular sciences · 2019Review
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- An extracted tetraploid wheat harbouring the BBAA component of common wheat shows anomalous shikimate and sucrose metabolism.BMC plant biology · 2019Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Water-soluble carbohydrates (WSCs; composed of mainly fructans, sucrose [Suc], glucose [Glc], and fructose) deposited in wheat (Triticum aestivum) stems are important carbon sources for grain filling. Variation in stem WSC concentrations among wheat genotypes is one of the genetic factors influencing grain weight and yield under water-limited environments. Here, we describe the molecular dissection of carbohydrate metabolism in stems, at the WSC accumulation phase, of recombinant inbred Seri/Babax lines of wheat differing in stem WSC concentrations. Affymetrix GeneChip analysis of carbohydrate metabolic enzymes revealed that the mRNA levels of two fructan synthetic enzyme families (Suc:Suc 1-fructosyltransferase and Suc:fructan 6-fructosyltransferase) in the stem were positively correlated with stem WSC and fructan concentrations, whereas the mRNA levels of enzyme families involved in Suc hydrolysis (Suc synthase and soluble acid invertase) were inversely correlated with WSC concentrations. Differential regulation of the mRNA levels of these Suc hydrolytic enzymes in Seri/Babax lines resulted in genotypic differences in these enzyme activities. Down-regulation of Suc synthase and soluble acid invertase in high WSC lines was accompanied by significant decreases in the mRNA levels of enzyme families related to sugar catabolic pathways (fructokinase and mitochondrion pyruvate dehydrogenase complex) and enzyme families involved in diverting UDP-Glc to cell wall synthesis (UDP-Glc 6-dehydrogenase, UDP-glucuronate decarboxylase, and cellulose synthase), resulting in a reduction in cell wall polysaccharide contents (mainly hemicellulose) in the stem of high WSC lines. These data suggest that differential carbon partitioning in the wheat stem is one mechanism that contributes to genotypic variation in WSC accumulation.
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