Phylogenetic relationships and taxonomic characteristics of Pythium spp. isolates in cereal fields of Fars Province

Document Type : Research Article

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Abstract

In order to investigate the Pythium flora in cereal fields of Fars Province of Iran, During 2012-2013 soilfrom cereal (rice, maize, barley and millet) fields in various parts of Fars Province (Arsanjan, Bajgah, Eqlid, Jahrom, Kamfiruz, Kavar, Kazerun, Khorambid, Larestan, Mamsani Meymand, Naghsh-e-Rostam, Sepidan, Surmaq, Seydan, Sivand and Zarghan) were sampled. Thirteen Pythium species were identified based on morphological, physiological and phylogenetic studies, including: Pythium adhaerens, P. amasculinum, P. aphanidermatum, P. carolinianum, P. coloratum, P. dissotocum, P. diclinum, P. kashmirense, P. marsipium, P. nunn, P. oligandrum, P. periplocum and Pythium sp. “hordeum”. P. adhaerens, P. carolinianum, P. dissotocum, P. kashmirense, P. marsipium, P. nunn and Pythium sp. “hordeum”werenewto Iran flora. Pythium sp. “hordeum”wasconsidered as a new species.

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