6533b861fe1ef96bd12c4499
RESEARCH PRODUCT
A new mycoparasite, Pythium lycopersicum, isolated in Isparta, Turkey: morphology, molecular characteristics, and its antagonism with phytopathogenic fungi.
Gã¼rsel KaracaGã¼liz TepedelenBernard PaulAfef Belghouthisubject
food.ingredientHyphaTurkeyMolecular Sequence DataPythiumMicrobiologyfoodSolanum lycopersicumBotanyAntibiosisDNA Ribosomal SpacerGeneticsVitisPythiumInternal transcribed spacerPythium oligandrumDNA FungalMolecular BiologySoil MicrobiologyBotrytisPlant DiseasesOomycetebiologySporangiumfungifood and beveragesSequence Analysis DNAbiology.organism_classificationAntheridiumBotrytisdescription
Pythium lycopersicum sp. nov. has been isolated from soil samples taken in an agricultural land in the Isparta region of Southern Turkey. This oomycete is characterized by its contiguous sporangia having globose to elongated elements linked with hyphal filaments, ornamented oogonia, and monoclinous antheridia with large antheridial cells. The oomycete is reminiscent of Pythium ornamentatum described by the corresponding author in 1987 from soil samples taken in Algeria. Sequence analyses of the internal transcribed spacer (ITS) regions of rRNA show a close relationship with Pythium oligandrum and other mycoparasites possessing ornamented oogonia. Morphological and molecular features of this isolate justify its description as a new species: P. lycopersicum. When grown together with Botrytis cinerea, this oomycete shows a pronounced antagonism and suppresses the phytopathogen. The morphological details, together with the analysis of the ITS region of its rRNA, and its antagonism with some phytopathogens are discussed in this article.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-11-01 | FEMS microbiology letters |