Počet záznamů: 1

Genetic variation of Phoma sorghina isolates from southern Africa and Texas

  1. 1.
    0327990 - MBU-M 2010 RIV CZ eng J - Článek v odborném periodiku
    Pažoutová, Sylvie
    Genetic variation of Phoma sorghina isolates from southern Africa and Texas.
    Folia Microbiologica. Roč. 54, č. 3 (2009), s. 217-229 ISSN 0015-5632
    Výzkumný záměr: CEZ:AV0Z50200510
    Klíčová slova: phoma sorghina * phytopathogen * originating
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 0.978, rok: 2009

    Genetic variation of Phoma sorghina, an ubiquitous facultative phytopathogen was studied on 41 isolates cultivated from surface-sterilized sorghum grains and originating from South Africa and Texas. Pearl millet isolates from Namibia were also included. Most of the isolates from Texas produced intensive red pigments, especially on Czapek-Dox agar plates. Many African isolates formed conspicuous dark radial substrate hyphae with intercalated chlamydospores on oatmeal plates. Conidial dimensions and shape were very variable (mean lengths 4.5-5.7 ium). Haplotypes were defined based on 53 markers from banding patterns obtained with rep-PCR (primers: M13core, ERIC 1R). The shared geographic origin was partially reflected in the clades of the haplotype phylogram. The values of GST were intermediate; 16 – 37 percent of the variation was found between the populations. Nm values of gene flow were 0.84 - 1.15
    Trvalý link: http://hdl.handle.net/11104/0174407