MIСOBIOTA OF SCOTS PINE PINUS SYLVESTRIS L. SEEDS

G.O. Boyko, O.V. Bashta

Abstract


The species composition of Scots pine seeds of different colours such as white, brown and black are studied. The frequency of occurrence of species and community types microbiota coefficient seed is established. The dominant microbiota is revealed to be in the species Mycelia sterilia (83,3-95,8 %), Trichoderma (79,2-95,8 %), Alternaria (41,7-91,7 %) – potential pathogens and plants antagonists of harmful microorganisms. Typical components microbiota also includes such genera as Penicillium (8,7-37,5 %) and Aspergillus (16,7-37,5 %), which are potential producers of mycotoxins production which are harmful to plant growth and development. Black seed's micromycetes species composition is determined to differ from white on 5,7 %, there almost no differences in the brown and white seed's microbiota components (similarity index is 99,2 %). Thirty one species of micromycetes were identified on seeds. They belonged to 4 divisions, 4 classes, 6 families, 13 genera, including species met with varying degrees of parasitism, obligate and facultative saprotroph and parasites.

Keywords


mycobiota; micromycetes; age groups of plants; Pinus sylvestris; frequency of occurrence; coefficient of species commonness

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