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Stran 1 iz 89 rezultatov
A distinct member of the basic (class I) chitinase gene family in potato is specifically expressed in epidermal cells.
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We have isolated cDNA clones encoding class I chitinase (ChtC) from potato leaves which share a high degree of nucleotide and amino acid sequence similarity to other, previously described basic (class I) chitinases (ChtB) from potato. Despite this similarity, characteristic features distinguish ChtC
[Pleiotropic effects of chitinase gene from Serratia plymuthica in transgenic potato].
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We estimate the influence of transgenic bacterial chitinase from soilborne Serratia plymuthica onto agronomical important traits of potato, such as productivity and non-specific resistance. Transgene has been delivered into potato variety Delfin via Agrobacterial transformation with pGreen0229 and
Expression of poplar chitinase in tomato leads to inhibition of development in colorado potato beetle.
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The previously described poplar chitinase, WIN6, is induced during infestation by gypsy moth (Lymantria dispar L.) larvae, thus suggesting a role in defense against insect pests. To test this hypothesis, we produced tomato seedlings infected with a recombinant potato virus X (PVX), which produces
Primary structure and expression of mRNAs encoding basic chitinase and 1,3-beta-glucanase in potato.
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Infection of potato leaves (Solanum tuberosum L. cv. Datura) by the late blight fungus Phytophthora infestans, or treatment with fungal elicitor leads to a strong increase in chitinase and 1,3-beta-glucanase activities. Both enzymes have been implicated in the plant's defence against potential
Identification of chitinase and osmotin-like protein as actin-binding proteins in suspension-cultured potato cells.
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Cytoplasmic aggregation is an early resistance-associated event that is observed in potato tissues either after penetration of an incompatible race of Phytophthora infestans, the potato late blight fungus, or after treatment with hyphal wall components (HWC) prepared from P. infestans. In potato
Antifungal properties of lectin and new chitinases from potato tubers.
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We have purified from potato tubers, the lectin STA devoid of chitinase activity and two chitinases devoid of lectin activity. Both enzymes are 16 kDa glycoproteins, and probably belong to a new family of plant chitinases. The respective antifungal properties of lectin and chitinases were studied by
Cloning and expression of an antifungal chitinase gene of a novel Bacillus subtilis isolate from Taiwan potato field.
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A chitinase producing Bacillus subtilis CHU26 was isolated from Taiwan potato field. This strain exhibited a strong extra-cellular chitinase activity on the colloidal chitin containing agar plate, and showed a potential inhibit activity against phytopathogen, Rhizoctonia solani. The gene encoding
An agglutinating chitinase with two chitin-binding domains confers fungal protection in transgenic potato.
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Brassica juncea BjCHI1 is a unique chitinase with two chitin-binding domains. Here, we show that, unlike other chitinases, potato-expressed BjCHI1 shows hemagglutination ability. BjCHI1 expression in B. juncea seedlings is induced by Rhizoctonia solani infection, suggesting its protective role
Several "pathogenesis-related" proteins in potato are 1,3-beta-glucanases and chitinases.
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Chitinase {poly[1,4-(N-acetyl-beta-D-glucosaminide)]glycanohydrolase, EC 3.2.1.14} and 1,3-beta-glucanase (1,3-beta-D-glucan 3-glucanohydrolase, EC 3.2.1.6) activities increased rapidly in potato (Solanum tuberosum) leaves inoculated with the pathogenic fungus Phytophthora infestans or treated with
The promoter of the potato chitinase C gene directs expression to epidermal cells.
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Chitinases are ubiquitous proteins that occur in all plants in multiple isoforms. We have isolated the ChtC2 gene encoding an unusual, basic (class I) chitinase from potato ( Solanum tuberosum L.). In contrast to other chitinase genes, ChtC2 is not activated by infection, but rather constitutively
Unexpected effects of chitinases on the peach-potato aphid (Myzus persicae Sulzer) when delivered via transgenic potato plants (Solanum tuberosum Linné) and in vitro.
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With the aim of producing insect-resistant potato plants, internode explants of Solanum tuberosum L. cv. Désirée were transformed with an Agrobacterium strain C58pMP90 containing an insect (Phaedon cochleariae: Coleoptera, Chrysomelidae) chitinase gene and the neomycin phosphotransferase (nptII)
Chitinase production by Bacillus subtilis ATCC 11774 and its effect on biocontrol of Rhizoctonia diseases of potato.
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Stem canker and black scurf of potato, caused by Rhizoctonia solani, can be serious diseases causing an economically significant damage. Biocontrol activity of Bacillus subtilis ATCC 11774 against the Rhizoctonia diseases of potato was investigated in this study. Chitinase enzyme was optimally
Primary structure and expression of acidic (class II) chitinase in potato.
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Infection of potato (Solanum tuberosum) leaves by the late blight fungus Phytophthora infestans or treatment with fungal elicitor leads to a strong increase in chitinase activity. We isolated cDNAs encoding acidic (class II) chitinases (ChtA) from potato leaves and determined their structures and
Enhanced resistance to blister blight in transgenic tea (Camellia sinensis [L.] O. Kuntze) by overexpression of class I chitinase gene from potato (Solanum tuberosum).
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Tea is the second most consumed beverage in the world. A crop loss of up to 43 % has been reported due to blister blight disease of tea caused by a fungus, Exobasidium vexans. Thus, it directly affects the tea industry qualitatively and quantitatively. Solanum tuberosum class I chitinase gene
Retransformation of marker-free potato for enhanced resistance against fungal pathogens by pyramiding chitinase and wasabi defensin genes.
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Multi-auto-transformation vector system has been one of the strategies to produce marker-free transgenic plants without using selective chemicals and plant growth regulators and thus facilitating transgene stacking. In the study reported here, retransformation was carried out in marker-free
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