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n2:394473

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schema:CreativeWork bibo:Document

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Paul <i>et al.</i> (2008)

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schema:datePublished

2008-01-01

dct:title

Paul <i>et al.</i> (2008)

dct:abstract

During the course of investigation on pythiaceous fungi occurring in the burgundian vineyards, a new species of Pythium has been isolated. This oomycete is characterised by its non-proliferating and non sporulating type of sporangia (hyphal bodies), smooth walled oogonia that have hypogynous, monoclinous or at times diclinous antheridia, and smooth walled oospores that can have up to 3 per oogonia. The oomycete produces appressoria from which sexual structures may originate which is a rare feature for the genus. Sequence analyses of its ITS regions of rDNA show a close relationship with P. debaryanum and P. violae but has its own distinguishing characteristics. Morphological and molecular features of this isolate justify its description as a new species: Pythium viniferum. When grown together with Botrytis cinerea, the causal agent of the grey mould disease of grapevine, this oomycete shows a pronounced antagonism and suppresses its growth. Since it is not pathogenic to the grapevine it can be used as a bio-control agent. Morphology, antagonism with Botrytis cinerea, and the phylogenetic position of the new species are discussed here.

bibo:abstract

During the course of investigation on pythiaceous fungi occurring in the burgundian vineyards, a new species of Pythium has been isolated. This oomycete is characterised by its non-proliferating and non sporulating type of sporangia (hyphal bodies), smooth walled oogonia that have hypogynous, monoclinous or at times diclinous antheridia, and smooth walled oospores that can have up to 3 per oogonia. The oomycete produces appressoria from which sexual structures may originate which is a rare feature for the genus. Sequence analyses of its ITS regions of rDNA show a close relationship with P. debaryanum and P. violae but has its own distinguishing characteristics. Morphological and molecular features of this isolate justify its description as a new species: Pythium viniferum. When grown together with Botrytis cinerea, the causal agent of the grey mould disease of grapevine, this oomycete shows a pronounced antagonism and suppresses its growth. Since it is not pathogenic to the grapevine it can be used as a bio-control agent. Morphology, antagonism with Botrytis cinerea, and the phylogenetic position of the new species are discussed here.

dct:issued

2008-01-01

dct:bibliographicCitation

Paul, B., Mathew, R., Kanak, B., Paul, A., Henry, M., Lefort, F. &amp; Belbahri, L. 2008. Morphology, taxonomy, and phylogenetic analysis of a new species of <em>Pythium </em>isolated from France. <em>FUNGAL DIVERSITY</em>, 28: 55-63.