Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Uniwersytetu Przyrodniczego we Wrocławiu, ISSN 1505-0297

Ligocka A. , Paluszak Z. , Sadowski S. , Dziedzic T. 2002. ENZYMATIC AND ANTAGONISTIC POTENTIAL OBSERVED IN FLAX-ROOT-INFECTING FUNGI, EJPAU 5(1), #01.
Available Online: http://www.ejpau.media.pl/volume5/issue1/agronomy/abs-01.html

ABSTRACT

The quantitative and qualitative composition of the soil microorganisms depends, amongst others, on whether monoculture or crop rotation is applied. The main phytopathogen infecting flax (Linum usitatissimum L.) is the Fusarium genus as well as fungi of the Alternaria, Phoma, Botrytis, Verticillium, Rhizoctonia genera, however soil hyperparasites of the Trichoderma genus can control them successfully. Both types of microorganisms were isolated from the roots sampled both from monocuture and crop rotation and from plants in emergence and flowering stage. The enzymatic activity was researched for a variety of nutrient substrates (cellulose, pectin, starch, protein) as well as the capacity for dissolving triphosphates. There was also investigated the extent of Trichoderma fungal antagonistic activity towards pathogens. Fusarium spp. was most frequent over emergence in monoculture; the quantity was similar in monoculture and in crop rotation as w

Key words: antagonism, Fusarium, Trichoderma, flax - Linum usitatissimum L., phytopathogenic fungi.

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