Communities of bacteria and fungi occurring in the rhizosphere of winter wheat

E. Patkowska, D. Pięta and A. Pastucha
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E. Patkowska: Department of Phytopathology, Agricultural University, 20-069 Lublin, Poland
D. Pięta: Department of Phytopathology, Agricultural University, 20-069 Lublin, Poland
A. Pastucha: Department of Phytopathology, Agricultural University, 20-069 Lublin, Poland

Plant Protection Science, 2002, vol. 38, issue SI2-6thConfEFPP, 361-363

Abstract: The purpose of the present studies was to establish the species composition of fungi occurring on the underground parts of winter wheat, Kobra cv. and to determine the quantitative and qualitative composition of microorganisms developing in the rhizosphere of this plant. The mycological analysis of the infected roots and the stem base of winter wheat gave 320 fungi isolates. Fusarium spp. were most frequently isolated, and their proportion was 64.7% of all the fungi. This genus was represented by F. avenaceum, F. culmorum, F. equiseti, F. graminearum, F. oxysporum and F. solani. Among these species the dominating ones were F. avenaceum (19.4%) and F. culmorum (38.7%). The microbiological analysis of winter wheat rhizosphere gave the highest number of total bacteria (6.32 × 106 cfu/g of d.w. of soil). The number of Pseudomonas pp. was 3.56 × 106 cfu/g of d.w. of soil, and the number of Bacillus spp. was 2.42 × 106 cfu/g of d.w. of soil. Fusarium spp. and Rhizoctonia solani dominated within pathogenic fungi isolated from the rhizosphere of winter wheat.

Keywords: winter wheat; rhizosphere; Fusarium spp.; Bacillus spp.; Pseudomonas spp (search for similar items in EconPapers)
Date: 2002
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DOI: 10.17221/10489-PPS

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