beta galactosidase/cartof

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Modification of potato cell wall pectin by the introduction of rhamnogalacturonan lyase and β-galactosidase transgenes and their side effects.

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Genes encoding pectic enzymes were introduced to wild-type potato Karnico. Cell wall materials were extracted from Karnico and transgenic lines expressing β-galactosidase (β-Gal-14 mutant) or rhamnogalacturonan lyase (RGL-18 mutant). After sequential extraction, β-Gal-14 hot buffer-soluble solids

In vivo expression of a Cicer arietinum beta-galactosidase in potato tubers leads to a reduction of the galactan side-chains in cell wall pectin.

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We report the generation of Solanum tuberosum transformants expressing Cicer arietinum betaIII-Gal. betaIII-Gal is a beta-galactosidase able to degrade cell wall pectins during cell wall loosening that occurs prior to cell elongation. cDNA corresponding to the gene encoding this protein was

Properties of potato lectin and the nature of its glycoprotein linkages.

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1. Potato lectin is a glycoprotein that contains about 47% (by weight) l-arabinose, 3% d-galactose and 11% hydroxyproline. It has a monomeric molecular weight of about 50000 and probably exists as a monomer-dimer system in aqueous solution, with the monomer predominating. It has a very high

The 42-kDa coat protein of Andean potato mottle virus acts as a transcriptional activator in yeast.

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Interactions of viral proteins play an important role in the virus life cycle, especially in capsid assembly. Andean potato mottle comovirus (APMoV) is a plant RNA virus with a virion formed by two coat proteins (CP42 and CP22). Both APMoV coat protein open reading frames were cloned into pGBT9 and

Transgenic modification of potato pectic polysaccharides also affects type and level of cell wall xyloglucan.

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BACKGROUND Genes encoding pectic enzymes were introduced into wild-type potato Karnico. Cell wall materials were extracted from Karnico and transgenic lines expressing β-galactosidase (β-Gal-14) or rhamnogalacturonan lyase (RGL-18). Pectic polysaccharides from the β-Gal-14 transgenic line exhibited

Selection of Bacillus species for targeted in situ release of prebiotic galacto-rhamnogalacturonan from potato pulp in piglets.

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We have previously shown that galacto-rhamnogalacturonan fibers can be enzymatically extracted from potato pulp and that these fibers have potential for exerting a prebiotic effect in piglets. The spore-forming Bacillus species are widely used as probiotics in feed supplements for pigs. In this

Pseudomonas endophytica sp. nov., isolated from stem tissue of Solanum tuberosum L. in Spain.

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A bacterial strain named BSTT44(T) was isolated in the course of a study of endophytic bacteria occurring in stems and roots of potato growing in a soil from Salamanca, Spain. The 16S rRNA gene sequence had 99.7% identity with respect to that of its closest relative, Pseudomonas psychrophila E-3T,

Molecular characterization of the interaction between the N-terminal region of Potato virus X (PVX) coat protein (CP) and Nicotiana benthamiana PVX CP-interacting protein, NbPCIP1.

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Using yeast two-hybrid assays and a Nicotiana benthamiana cDNA library, we previously identified an N. benthamiana protein, NbPCIP1, that interacts with Potato virus X (PVX) coat protein (CP). We also previously determined that NbPCIP1 enhances PVX replication in plants. To determine the domains

The defense-related STH-2 gene product of potato shows race-specific accumulation after inoculation with low concentrations of Phytophthora infestans zoospores.

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The defense-related STH-2 gene is rapidly activated following infection or elicitor treatment of potato (Solanum tuberosum L.) tubers. However, its physiological or biochemical function is unknown. To study the STH-2 gene product and its accumulation during the defense response, we raised antibodies

Density labelling studies of the photocontrol of L-phenylalanine ammonia-lyase in discs of potato (Solanum tuberosum) tuber parenchyme.

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The photocontrol of L-phenylalanine ammonia-lyase (EC 4.3.1.5) activity in discs of potato (Solanum tuberosum) tuber parenchyme has been investigated by density labelling with 2H from 2H2O. Labelling of enzyme was measured by analysis of the equilibrium distribution of enzyme activity in CsCl

Identification of salt stress-induced transcripts in potato leaves by cDNA-AFLP.

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Potato (Solanum tuberosum L.) is highly sensitive to salt stress, which is one of the most important factors limiting plant cultivation. The investigation of plant response to high salinity was envisaged in this report using cDNA-amplified fragment length polymorphism (AFLP). This technique was

Histochemical demonstration of different types of poly-N-acetyllactosamine structures in human thyroid neoplasms using lectins and endo-beta-galactosidase digestion.

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Blood-group-related antigens expressed in papillary carcinomas and other types of neoplasm of the human thyroid glands have been shown to be carried by poly-N-acetyllactosamines containing a linear domain susceptible to endo-beta-galactosidase digestion. To make clear more precisely the backbone

Cloning of a Cicer arietinum beta-galactosidase with pectin-degrading function.

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The cDNA clone (CanBGal-3) encoding a cell wall pectin-degrading beta-galactosidase (beta III-Gal) from Cicer arietinum L. cv. Castellana has been identified. The identification was carried out by comparing the deduced amino acid sequences of several isolated chickpea beta-galactosidase clones with

Fontibacillus solani sp. nov. isolated from potato (Solanum tuberosum L.) root.

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A bacterial strain designated A4STR04(T) was isolated from the inner root tissue of potatoes in Spain. Phylogenetic analysis based on the 16S rRNA gene sequence placed the isolate into the genus Fontibacillus, being most closely related to Fontibacillus panacisegetis KCTC 13564(T) with 99% identity.

Using the Yeast Three-Hybrid System to Identify Proteins that Interact with a Phloem-Mobile mRNA.

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Heterografting and RNA transport experiments have demonstrated the long-distance mobility of StBEL5 RNA, its role in controlling tuber formation, and the function of the 503-nt 3' untranslated region (UTR) of the RNA in mediating transport. Because the 3' UTR of StBEL5 is a key element in regulating

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