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pyrophosphatase/kartul
Link salvestatakse lõikelauale
Leht 1 alates 35 tulemused
Identification of cytosolic Mg2+-dependent soluble inorganic pyrophosphatases in potato and phylogenetic analysis.
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Using polyclonal antibodies raised against a previously cloned potato Mg2+-dependent soluble inorganic pyrophosphatase (ppa1 gene) [8], a second gene, called ppa2, could be isolated. A single locus homologous to ppa2 was mapped on potato chromosomes, unlinked to the two loci identified for ppa1.
Novel activity of potato nucleotide pyrophosphatase.
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The classical Kornberger-Pricer procedure for purification of potato nucleotide pyrophosphatase (EC 3.6.1.9) has been modified to yield a preparation purified 2500-fold. In addition to the known activity against pyrophosphate linkages in pyrophosphates located at the 5'-OH of nucleosides, and
Acceleration of potato tuber sprouting by the expression of a bacterial pyrophosphatase.
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Potato is a globally important crop. Unfortunately, potato farming is plagued with problems associated with the sprouting behavior of seed tubers. The data presented here demonstrate that using transgenic technology can influence this behavior. Transgenic tubers cytosolically expressing an inorganic
Low levels of pyrophosphate in transgenic potato plants expressing E. coli pyrophosphatase lead to decreased vitality under oxygen deficiency.
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OBJECTIVE
The aim of this study was to investigate the importance of pyrophosphate (PPi) for plant metabolism and survival under low oxygen stress. Responses of roots of wild-type potato plants were compared with roots of transgenic plants containing decreased amounts of PPi as a result of the
Use of potato tuber nucleotide pyrophosphatase to synthesize adenosine 5'-monophosphate methyl ester: evidence that the solvolytic preferences of the enzyme are regulated by pH and temperature.
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Nucleotide alkyl esters are pharmacologically important as potential (ant)agonists of purinoceptors and inhibitors of enzymes. Potato nucleotide pyrophosphatase (PNP) was compared with snake venom phosphodiesterase (SVP) as a catalyst to synthesize nucleotide alkyl esters. In methanol-water
Removal of 5'-terminal m7G from eukaryotic mRNAs by potato nucleotide pyrophosphatase and its effect on translation.
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The procedure for isolation of nucleotide pyrophosphatase (E.C. 3.6.1.9.) from potato has been modified to yield an endonuclease-free preparation purified 2300-fold. The enzyme was used for specific cleavage of pyrophosphate linkages in the 5'-terminal cap (m7GpppN) of several eukaryotic messenger
Nucleotide pyrophosphatase from potato tubers. Purification and properties.
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Purification of potato tuber nucleotide pyrophosphatase (EC 3.6.1.9) has been modified to furnish a rapid and reproducible procedure yielding a preparation purified 1800-fold and homogeneous in sodium dodecyl sulphate/polyacrylamide gel electrophoresis. The Mr of the enzyme, from gel filtration or
Overexpression of pyrophosphatase leads to increased sucrose degradation and starch synthesis, increased activities of enzymes for sucrose-starch interconversions, and increased levels of nucleotides in growing potato tubers.
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Overexpression of inorganic pyrophosphatase (PPase) from Escherichia coli in the cytosol of plants (ppa 1 plants) leads to a decrease of inorganic pyrophosphate (PPi; U. Sonnewald, 1992, Plant J 2: 571-581). The consequences for sucrose-starch interconversions have now been studied in growing potato
Molecular cloning and characterization of a soluble inorganic pyrophosphatase in potato.
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A cDNA clone encoding a soluble inorganic pyrophosphatase (EC 3.6.1.1) of potato (Solanum tuberosum L.) was isolated by screening a developing tuber library with a heterologous probe. The central domain of the encoded polypeptide is nearly identical at the sequence level with its Arabidopsis homolog
H+ -pyrophosphatase IbVP1 promotes efficient iron use in sweet potato [Ipomoea batatas (L.) Lam.].
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Iron (Fe) deficiency is one of the most common micronutrient deficiencies limiting crop production globally, especially in arid regions because of decreased availability of iron in alkaline soils. Sweet potato [Ipomoea batatas (L.) Lam.] grows well in arid regions and is tolerant to Fe deficiency.
Inorganic pyrophosphate content and metabolites in potato and tobacco plants expressing E. coli pyrophosphatase in their cytosol.
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Metabolite levels and carbohydrates were investigated in the leaves of tobacco (Nicotiana tabacum L.) and leaves and tubers of potato (Solanum tuberosum L.) plants which had been transformed with pyrophosphatase from Escherichia coli. In tobacco the leaves contained two- to threefold less
In Nicotiana species, an artificial microRNA corresponding to the virulence modulating region of Potato spindle tuber viroid directs RNA silencing of a soluble inorganic pyrophosphatase gene and the development of abnormal phenotypes.
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Potato spindle tuber viroid (PSTVd) is a small non-protein-coding RNA pathogen that can induce disease symptoms in a variety of plant species. How PSTVd induces disease symptoms is a long standing question. It has been suggested that PSTVd-derived small RNAs (sRNAs) could direct RNA silencing of a
A Medicago truncatula H+-pyrophosphatase gene, MtVP1, improves sucrose accumulation and anthocyanin biosynthesis in potato (Solanum tuberosum L.).
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We recently cloned MtVP1, a type I vacuolar-type H(+)-translocating inorganic pyrophosphatase from Medicago truncatula. In the present study, we investigated the cellular location and the function of this H(+)-PPase in Arabidopsis and potato (Solanum tuberosum L.). An MtVP1::enhanced green
Potato pyrophosphatases.
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Potato pyrophosphatases.
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