Fatty Acids of Rice Coleoptiles in Air and Anoxia
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...
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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...
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15 صفحه اولRegulation 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 کاملProtein synthesis by rice coleoptiles during prolonged anoxia: implications for glycolysis, growth and energy utilization.
BACKGROUND AND AIMS Anoxia-tolerant plant tissues synthesize a number of proteins during anoxia, in addition to the 'classical anaerobic proteins' involved in glycolysis and fermentation. The present study used a model system of rice coleoptile tips to elucidate patterns of protein synthesis in this anoxia-tolerant plant tissue. METHODS Coleoptile tips 7-11 mm long were excised from intact se...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1987
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.84.2.555