castanea sativa/necroză

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Cloning, characterization, in vitro and in planta expression of a necrosis-inducing Phytophthora protein 1 gene npp1 from Phytophthora cinnamomi.

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The soil-borne oomycete Phytophthora cinnamomi is a highly destructive Phytophthora species associated with the decline of forest. This pathogen secretes a novel class of necrosis-inducing proteins known as Nep1-like proteins (NLPs). In this work, we report the sequencing and molecular

A threshold level of oxalate oxidase transgene expression reduces Cryphonectria parasitica-induced necrosis in a transgenic American chestnut (Castanea dentata) leaf bioassay.

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American chestnut (Castanea dentata) was transformed with a wheat oxalate oxidase (oxo) gene in an effort to degrade the oxalic acid (OA) secreted by the fungus Cryphonectria parasitica, thus decreasing its virulence. Expression of OxO was examined under two promoters: a strong constitutive

Cytotoxic effects of procyanidins from Castanea mollissima Bl. shell on human hepatoma G2 cells in vitro.

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Significant cytotoxic effects of procynadins from chestnut (Castanea mollissima Bl.) shell (CSPC) on human hepatoma G2 (HepG2) cells were found in vitro. CSPC could inbibit HepG2 proliferation in a dose-dependent manner (100-400 μg/mL), arrest cell cycle in the G0/G1 phase, induce apoptosis and

Does Gnomoniopsis castanea contribute to the natural biological control of chestnut gall wasp?

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Gnomoniopsis castanea has been reported as the causal agent of necrosis of chestnut wasp (Dryocosmus kuriphilus) galls. The fungus is frequently observed on galls in chestnut stands infested by the insect in Italy. In the present study the impact of gall necrosis and the dynamic of its development

First Report of Phytophthora pseudosyringae Associated with Ink Disease of Castanea sativa in Italy.

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Since December 2008, a severe outbreak of ink disease has been observed in a chestnut grove in the Sardinia Region in Italy (40°01'N, 9°13'E, 1,200 m above sea level). Trees have shown symptoms such as microphylly and yellowish foliage as well as necrosis on the main roots and collar. Isolations

Castanea mollissima shell prevents an over expression of inflammatory response and accelerates the dermal wound healing.

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BACKGROUND Castanea mollissima shell (CMS) has been used for wound healing in China as traditional medicine. The shell is directly applied on the wounded skin as fine powder or as water maceration. OBJECTIVE To investigate the wound healing activity of CMS and the potential mechanism of

Anti-inflammatory effects of a methanolic extract of Castanea seguinii Dode in LPS-induced RAW264.7 macrophage cells.

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Castanea extracts are known to have antioxidant properties and are used as a traditional medicine in China and Asia. However, the biological activity of Castanea seguinii Dode has remained to be fully elucidated. The present study investigated the anti-inflammatory effects of a Castanea seguinii

Scientifically advanced solutions for chestnut ink disease.

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On the north regions of Portugal and Spain, the Castanea sativa Mill. culture is extremely important. The biggest productivity and yield break occurs due to the ink disease, the causal agent being the oomycete Phytophthora cinnamomi. This oomycete is also responsible for the decline of many other

First Report of Phytophthora pseudosyringae on Chestnut Nursery Stock in Spain.

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Phytophthora pseudosyringae causes stem necrosis and collar rot of deciduous tree species (Quercus spp., Fagus silvatica, and Alnus glutinosa) in several European countries (1,2). In November 2006, we received diseased Castanea sativa seedlings from a nursery in Galicia (northwest Spain). These

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