Phosphate Starvation Inducible `Bypasses' of Adenylate and Phosphate Dependent Glycolytic Enzymes in Brassica nigra Suspension Cells
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چکیده
منابع مشابه
Phosphate Starvation Inducible ;Bypasses' of Adenylate and Phosphate Dependent Glycolytic Enzymes in Brassica nigra Suspension Cells.
When Brassica nigra leaf petiole suspension cells were subjected to 7 days of inorganic phosphate (Pi) starvation the extractable activity of: (a) pyrophosphate:fructose 6-phosphate 1-phosphotransferase, nonphosphorylating NADP-glyceraldehyde 3-phosphate dehydrogenase, phosphoenolpyruvate phosphatase, and phosphoenolpyruvate carboxylase increased at least fivefold, (b) phosphorylating NAD-glyce...
متن کاملPurification and Characterization of Pyrophosphate- Dependent Phosphofructokinase from Phosphate-Starved Brassica nigra Suspension CeIIs’
Previously, we reported that inorganic phosphate (Pi) deprivation of Brassica nigra suspension cells or seedlings leads to a progressive increase in the a$-subunit ratio of the inorganic pyrophosphate (PPibdependent phosphofructokinase (PFP) and that this coincides with a marked enhancement in the enzyme’s activity and sensitivity to i ts allosteric activator, fructose-2,6-bisphosphate (Fru-2,6...
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Mayumi Nagano*, A kiko Hachiya** and Hiroshi Ashihara Department of Biology, Faculty of Science, Ochanomizu University, 2-1-1, Otsuka, Bunkyo-ku, Tokyo, 112, Japan Z. Naturforsch. 49c, 742-750 (1994); received June 20/August 25, 1994 Madagascar Periwinkle, Phosphoenolpyruvate Carboxylase, Pyruvate Kinase. Glycolysis, Phosphate Starvation Pathways involved in the conversion of phosphoenolpyruvat...
متن کاملUpregulation of vacuolar H(+)-translocating pyrophosphatase by phosphate starvation of Brassica napus (rapeseed) suspension cell cultures.
The influence of phosphate (Pi) deprivation on the vacuolar H(+)-translocating pyrophosphatase (PPiase) and ATPase in tonoplast vesicles from Brassica napus suspension cells was assessed. Pi starvation significantly elevated the ratios of PPi-:ATP-dependent H(+) translocation rate and H(+)-PPiase:H(+)-ATPase hydrolytic activities. These increases were reversed 36 h following resupply of 2.5 mM ...
متن کاملPhosphate Starvation Inducible Metabolism in Lycopersicon esculentum: II. Characterization of the Phosphate Starvation Inducible-Excreted Acid Phosphatase.
Three-day-old suspension cultured cells of Lycopersicon esculentum transferred to a Pi-depleted medium had 2.7 times the excreted acid phosphatase (Apase) activity of cells transferred to a Pi-sufficient medium. Cell growth during this time period was identical for the two treatments. Excreted Apase activity was resolved into two fractions on a Sephadex G-150 column. Most of the phosphate starv...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1989
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.90.4.1275