Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:1.4.1.2 (glutamate dehydrogenase)
 4,380 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Taking high-protein peanut cultivar KB008, high-fat peanut cultivar Hual7 (H17), and high-oleic acid/linoleic acid (O/L) peanut cultivar Nongda818 as test materials, a field experiment was conducted in 2010 and 2011 to study the differences in the contents of protein, fat, and their components of the seed kernels, and the differences in the activities of the carbon and nitrogen metabolism enzymes related to the quality synthesis in the blades. As compared with that of H17 and Nongda818, the seed kernel of KB008 had significantly higher protein content but significantly lower soluble sugar content and O/L ratio, and the contents of the amino acid components, especially glutamic acid and lysine, in the seed kernel of KB008 were significantly higher. During the whole growth period, the activities of nitrate reductase (NR) , glutamine. synthetase (GS), glutamate dehydrogenase (GDH), glutamate synthase (GOGAT), and glutamate pyruvate transaminase (GPT) in the blades of the three cultivars were in the order of KB008>H17> Nongda818. At pod setting stage, the activities of PEPCase and RuBPCase in the blades of the three cultivars were ranked as KB008>H17> Nongda818. The higher PEPCase and RuBPCase activities of KB008 facilitated the protein synthesis and accumulation. The sucrose synthase (SS) activity in the blades was in the order of H17 > Nongda818 >KB008. The sucrose phosphate synthase (SPS) activity of KB008' s blades was significantly lower than that of the other two cultivars, while the SPS activity of H17' s blades was still higher even in the 60 days after anthesis, suggesting that the higher activities of SS and SPS in the blades were in favor of the fat formation in peanut seed kernel.
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PMID:[Differences in seed kernel quality and related enzyme activities of different quality type peanut cultivars]. 2370 95

Selecting high-protein peanut cultivar KB008, high-fat cultivar Hual7, and high O/L cultivar Nongda818 as test materials, a field experiment was conducted in 2011 and 2012 to study the effects of foliar spraying paclobutrazol (PBZ) at late flowering stage on the kernel yield and quality and the activities of leaf carbon and nitrogen metabolism enzymes of the cultivars. Spraying PBZ increased the pod yield of the cultivars significantly via increasing the pod number per plant, decreasing the pod number per kilogram, and increasing the percentage of double kernel. Spraying PBZ also increased the kernel fat and soluble sugar contents but decreased the kernel protein content to varying degrees, and increased the O/L ratio of high-fat cultivar Hual7 significantly. PBZ increased the kernel fat content while decreased the kernel protein content of Nongda818 significantly, but had little effects on the kernel protein or fat content of the other two cultivars. Spraying PBZ decreased the leaf nitrate reductase activity of the three cultivars at their pod setting stage, and the leaf glutamine synthetase and glutamate dehydrogenase activities at pod setting and filling stages, with the largest decrement for Nongda818 and the smaller one for KB008 and H17. Spraying PBZ decreased the leaf glutamate oxaloacetic transaminase and glutamate pyruvate transaminase activities of the three cultivars at their pod setting and filling stages, illustrating that the decrease of the nitrogen metabolism enzyme activities after spraying PBZ was the main reason of the decreased kernel protein content of the cultivars. PBZ increased the leaf sucrose synthase and sucrose phosphate synthase activities at pod setting and filling stages, being significant for Nongda818. PBZ improved the leaf phosphoenolpyruvate carboxylase and ribulose bisphosphate carboxylase activities of the three cultivars at their pod setting and filling stages, being most significant for Nongda818. It was suggested that the increase of the carbon metabolism enzyme activities was the physiological basis of the improvement of kernel fat content after spraying PBZ.
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PMID:[Effects of paclobutrazol on the yield, quality, and related enzyme activities of different quality type peanut cultivars]. 2448 79