beta glucuronidase/potato

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High-level expression of a sweet potato sporamin gene promoter: beta-glucuronidase (GUS) fusion gene in the stems of transgenic tobacco plants is conferred by multiple cell type-specific regulatory elements.

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Genes coding for sporamin, the most abundant protein of the tuberous root of the sweet potato, are expressed at a high levels in the stems of plantlets cultured axenically on sucrose-containing medium. Their expression is also induced in leaf-petiole explants by high concentrations of sucrose. A

The presequence of a precursor to the delta-subunit of sweet potato mitochondrial F1ATPase is not sufficient for the transport of beta-glucuronidase (GUS) into mitochondria of tobacco, rice and yeast cells.

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A precursor to the delta-subunit of sweet potato mitochondrial F1ATPase (pre-F1 delta) has an amino-terminal (N-terminal) presequence of 45 amino acid residues and its N-terminal 18 residues may form an amphiphilic alpha-helix, which is typical of mitochondrial targeting signals [Kimura et al.

Probiotic effects of beta-glucuronidase on the peach-potato aphid Myzus persicae (Aphididae).

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beta-glucuronidase (GUS) is a reporter protein commonly expressed in transgenic plants allowing the visualization of the transformed individuals. In our recent work, we showed that consumption of transformed potato plants expressing this GUS enzyme improves performance of the phloem feeding aphid

Cell-to-cell movement of potato virus X revealed by micro-injection of a viral vector tagged with the beta-glucuronidase gene.

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The replication and cell-to-cell movement of potato virus X (PVX) has been studied using a PVX vector construct which expressed the beta-glucuronidase (GUS) reporter gene in infected cells. Nicotiana clevelandii leaf trichome cells were micro-injected with the PVX-GUS vector and histochemical

Transformation of Solanum tuberosum plastids allows high expression levels of β-glucuronidase both in leaves and microtubers developed in vitro.

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Plastid genome transformation offers an attractive methodology for transgene expression in plants, but for potato, only expression of gfp transgene (besides the selective gene aadA) has been published. We report here successful expression of β-glucuronidase in transplastomic Solanum tuberosum (var.

Subcellular location and expression level of a chimeric protein consisting of the maize waxy transit peptide and the beta-glucuronidase of Escherichia coli in transgenic potato plants.

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The transit peptide of the maize waxy protein (a nuclear-encoded amyloplast protein of the maize endosperm) was studied with respect to its role in subcellular protein targeting in transgenic potato plants. TP30, a chimeric precursor protein consisting of the waxy transit peptide and an additional

The Activation of the Potato PR-10a Gene Requires the Phosphorylation of the Nuclear Factor PBF-1.

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The pathogenesis-related gene PR-10a (formerly STH[middot]2) is induced in various organs of potato after wounding, elicitor treatment, or infection by Phytophthora infestans. Deletion analysis of the promoter of the PR-10a gene enabled us to identify a 50-bp region, located between positions -155

Promoter activity of polypyrimidine tract-binding protein genes of potato responds to environmental cues.

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Polypyrimidine tract-binding (PTB) proteins are RNA-binding proteins that target specific RNAs for post-transcriptional processing by binding cytosine/uracil motifs. PTBs have established functions in a range of RNA processes including splicing, translation, stability and long-distance transport.

Identification of cis-acting elements involved in the regulation of the pathogenesis-related gene STH-2 in potato.

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We have characterized a genomic clone containing the potato pathogenesis-related genes STH-2 and STH-21. The two genes are found 4 kb apart on the same chromosome and their sequences are highly similar. They present the same transcriptional orientation and are both interrupted by a single intron. A

The starch phosphorylase gene is subjected to different modes of regulation in starch-containing tissues of potato.

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Analysis of the levels of starch phosphorylase mRNA and its product in the various organs of the potato plant indicates that the gene is differentially regulated, leading to a high accumulation of the gene product in tubers. The amount of phosphorylase transcripts synthesized in nuclei isolated from

Isolation and characterization of a chalcone isomerase gene promoter from potato cultivars.

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Chalcone isomerase (CHI) is a key enzyme involved in anthocyanin metabolism. Previous research on CHI has mainly focused on cDNA cloning and gene expression. In the current study, the 1425-bp potato CHI promoter (PCP) was isolated from four potato cultivars (Heijingang, Zhongshu 7, Désirée, and

Expression of a chimaeric granule-bound starch synthase-GUS gene in transgenic potato plants.

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Granule-bound starch synthase is the key enzyme in amylose synthesis. The regulation of this gene was investigated using a chimaeric gene consisting of a 0.8 kb 5' upstream sequence of the granule-bound starch synthase gene from potato and the beta-glucuronidase gene which was introduced into potato

Fate of introduced genetic markers in transformed root clones and regenerated plants of monohaploid and diploid potato genotypes.

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Agrobacterium transformation of stem internodes of four monohaploid (839-79, 849-7, 851-23, 855-1) and two diploid (M9 and HH260) potato genotypes using hairy root-inducing single (LBA 1020, LBA 9365, LBA 9402) and binary (LBA 1060KG) vectors is reported. Various media and successive culture steps

Translation enhancing properties of the 5'-leader of potato virus X genomic RNA.

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The double-stranded DNA copy corresponding to the 5'-nontranslated alpha beta-leader of potato virus X (PVX) genomic RNA (positions -3 to-85 according to AUG initiator) was chemically synthesized and fused to the transcription plasmids containing three different reporter genes:

The K+ channel SKT1 is co-expressed with KST1 in potato guard cells--both channels can co-assemble via their conserved KT domains.

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An appreciable number of potassium channels mediating K+ uptake have been identified in higher plants. Promoter-beta-glucuronidase reporter gene studies were used here to demonstrate that SKT1, encoding a potato K+ inwardly rectifying channel, is expressed in guard cells in addition to KST1

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