Molecular and morphological taxonomy of Pythium species isolated from soil in West Azarbaijan province (N.W. Iran)

Authors

  • Esmaeil Khaledi Graduated MSc Student, Department of Plant Protection, Faculty of Agriculture, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
  • Farzaneh Badali Graduated MSc Student, Department of Plant Protection, Faculty of Agriculture, Urmia University, P.O. Box 165, Urmia, Iran
  • Masoud Abrinbana Assistant Prof., Department of Plant Protection, Faculty of Agriculture, Urmia University, P.O. Box 165, Urmia, Iran
Abstract:

Pythium is a fungus-like genus with worldwide distribution that is found in most terrestrial and aquatic ecosystems. It is a species-rich genus contains important plant pathogenic species. Little is known on the systematics of Pythium in West Azarbaijan province (N.W. Iran). Thus, the aim of this study was to identify 200 isolates collected from different cultivated soils of West Azarbaijan province during 2012–13. Based on morphological and molecular (ITS and coxI sequences) data, 14 Pythium species from six clades, A, D, E, F, I and J, were identified. Of these, P. ornamentatum from clade D, P. nodosum from clade J and P. stipitatum from clade E are new records for Iran mycobiota. Molecular data failed to separate P. glomeratum, P. ornamentatum and P. viniferum from closely related species and they were identified based on morphological features. Detailed description is presented here for P. minus, P. ornamentatum, P. nodosum and P. stipitatum.

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Journal title

volume 17  issue 1

pages  78- 91

publication date 2016-08-22

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