Effects of Anoxia on Amino Acid Levels in Rice Coleoptiles
نویسندگان
چکیده
منابع مشابه
Fatty acids of rice coleoptiles in air and anoxia.
The metabolism of lipids, like that of other components, was adversely and strongly affected when rice (Oryza sativa L.) coleoptiles were grown anaerobically. In aerobic coleoptiles, the amounts of total fatty acid, phospholipid, and total lipid per coleoptile increased by 2.5- to 3-fold between days three and seven, whereas under anoxia, the increases were all less than 60%. The total amount o...
متن کاملRegulation of alcoholic fermentation in coleoptiles of two rice cultivars differing in tolerance to anoxia.
To investigate regulation of anaerobic carbohydrate catabolism in anoxia-tolerant plant tissue, rate of alcoholic fermentation and maximum catalytic activities of four key enzymes were assessed in coleoptiles of two rice cultivars that differ in tolerance to anoxia. The enzymes were ATP-dependent phosphofructokinase (PFK), pyrophosphate-dependent phosphofructokinase (PFP), pyruvate decarboxylas...
متن کاملRegulation of intracellular pH during anoxia in rice coleoptiles in acidic and near neutral conditions
Rice coleoptiles, renowned for anoxia tolerance, were hypoxically pretreated, excised, 'healed', and then exposed to a combination of anoxia and pH 3.5. The putative acid load was confirmed by net effluxes of K(+) to the medium, with concurrent net decreases of H(+) in the medium, presumably mainly due to H(+) influx. Yet the coleoptiles survived the combination of anoxia and pH 3.5 for at leas...
متن کاملDifferential molecular responses of rice and wheat coleoptiles to anoxia reveal novel metabolic adaptations in amino acid metabolism for tissue tolerance.
Rice (Oryza sativa) and wheat (Triticum aestivum) are the most important starch crops in world agriculture. While both germinate with an anatomically similar coleoptile, this tissue defines the early anoxia tolerance of rice and the anoxia intolerance of wheat seedlings. We combined protein and metabolite profiling analysis to compare the differences in response to anoxia between the rice and w...
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ژورنال
عنوان ژورنال: Plant Production Science
سال: 2006
ISSN: 1343-943X,1349-1008
DOI: 10.1626/pps.9.383