guanosine/بطاطس

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12 النتائج

A point mutation in the polymerase of Potato virus Y confers virulence toward the Pvr4 resistance of pepper and a high competitiveness cost in susceptible cultivar.

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To understand why the Pvr4 resistance of pepper against Potyvirus spp. remained durable in field conditions while virulent Potato virus Y (PVY) variants could be selected in the laboratory, we studied the molecular mechanisms which generated these variants and the consequences on viral fitness.

Flavouring compounds in Indian potato snacks.

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Market for processed potato products is rising day by day. Flavour plays important role in decision making by consumers due to their preferences for better tasting food. In potato and potato products, glutamic acid, aspartic acid, guanosine 5'-monophosphate (GMP) and adenosine 5'-monophosphate (AMP)

Infectious in vitro transcripts from cloned cDNA of the potato A potyvirus.

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A full-length cDNA copy of potato virus A RNA was constructed downstream from the bacteriophage T7 RNA polymerase promoter. A single extra guanosine not present in PVA RNA was added to the 5'-end of the cDNA. The capped in vitro transcripts from cloned cDNA were infectious in the mesophyll

Profiles of purine biosynthesis, salvage and degradation in disks of potato (Solanum tuberosum L.) tubers.

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To find general metabolic profiles of purine ribo- and deoxyribonucleotides in potato (Solanum tuberosum L.) plants, we looked at the in situ metabolic fate of various (14)C-labelled precursors in disks from growing potato tubers. The activities of key enzymes in potato tuber extracts were also

MicroR828 regulates lignin and H2O2 accumulation in sweet potato on wounding.

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MicroRNAs (miRNAs) are small noncoding RNAs which post-transcriptionally regulate gene expression by directing mRNA cleavage or translational inhibition. miRNAs play multiple roles in the growth, development and stress responses in plants. However, little is known of the wounding-responsive miRNAs

Purification and cloning of a soluble ATP-diphosphohydrolase (apyrase) from potato tubers (Solanum tuberosum).

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A soluble ATP-diphosphohydrolase (apyrase, EC 3.6.1.5) has been purified from potato tubers. Solanum tuberosum, to a specific activity of 10,000 mumol P(i)/mg/min. The cDNA corresponding to the potato apyrase has been isolated and termed RROP1. The deduced amino acid sequence contains a putative

Ribonuclease T1 generates circular RNA molecules from viroid-specific RNA transcripts by cleavage and intramolecular ligation.

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A 406 nucleotide long potato spindle tuber viroid (PSTVd)-specific linear RNA transcript was synthesized in vitro and subjected to limited digestion with ribonuclease (RNase) T1. Under certain conditions this guanosine-specific endoribonuclease proved to be capable of processing the

Complementary DNA cloning and sequencing of the chicken muscle ecto-ATPase. Homology with the lymphoid cell activation antigen CD39.

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The ecto-ATPase from chicken gizzard (smooth muscle) was solubilized, and the 66-kDa cell membrane ecto-ATPase protein was purified. The protein was then subjected to both enzymatic and chemical cleavage, and the resultant peptides were purified by reverse phase high pressure liquid chromatography

High-throughput in planta expression screening identifies an ADP-ribosylation factor (ARF1) involved in non-host resistance and R gene-mediated resistance.

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To identify positive regulators of cell death in plants, we performed a high-throughput screening, employing potato virus X-based overexpression in planta of a cDNA library derived from paraquat-treated Nicotiana benthamiana leaves. The screening of 30,000 cDNA clones enabled the identification of

Plant mitochondria use two pathways for the biogenesis of tRNAHis.

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All tRNA(His) possess an essential extra G(-1) guanosine residue at their 5' end. In eukaryotes after standard processing by RNase P, G(-1) is added by a tRNA(His) guanylyl transferase. In prokaryotes, G(-1) is genome-encoded and retained during maturation. In plant mitochondria, although trnH genes

In situ evidence of an alternative oxidase and an uncoupling protein in the respiratory chain of Aspergillus fumigatus.

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Aspergillus fumigatus is an unusual pathogen in immunocompetent individuals; its incidence has increased in the last decades in patients immunocompromised, like those with chronic granulomatosis disease and AIDS. The aim of this study was to identify differences between the respiratory chain of host

Cell-length heterogeneity: a population-level solution to growth/virulence trade-offs in the plant pathogen Dickeya dadantii.

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Necrotrophic plant pathogens acquire nutrients from dead plant cells, which requires the disintegration of the plant cell wall and tissue structures by the pathogen. Infected plants lose tissue integrity and functional immunity as a result, exposing the nutrient rich, decayed tissues to the

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Herbal & Natural Medicine

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