Transport of Anions in Isolated Barley Vacuoles
نویسندگان
چکیده
منابع مشابه
Amino Acid Transport across the Tonoplast of Vacuoles Isolated from Barley Mesophyll Protoplasts : Uptake of Alanine, Leucine, and Glutamine.
Mesophyll protoplasts from leaves of well-fertilized barley (Hordeum vulgare L.) plants contained amino acids at concentrations as high as 120 millimoles per liter. With the exception of glutamic acid, which is predominantly localized in the cytoplasm, a major part of all other amino acids was contained inside the large central vacuole. Alanine, leucine, and glutamine are the dominant vacuolar ...
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The uptake of phenylalanine was studied with vacuole isolated from barley mesophyll protoplasts. The phenylalanine transport exhibited saturation kinetics with apparent K.-values of 1.2 to 1.4 millimolar for ATPor PPi-driven uptake; V.,. p was 120 to 140 nanomoles Phe per milligram of chlorophyll per hour (1 milligram of chlorophyll corresponds to 5 x 10 vacuoles). Half-maximal transport rates ...
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Members of the ALMT gene family contribute to the Al(3+) resistance of several plant species by facilitating malate efflux from root cells. The first member of this family to be cloned and characterized, TaALMT1, is responsible for most of the natural variation of Al(3+) resistance in wheat. The current study describes the isolation and characterization of HvALMT1, the barley gene with the grea...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1986
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.80.4.895