Screening of antagonistic activity of microorganisms against Colletotrichum acutatum and Colletotrichum gloeosporioides
Provera antagonističkog delovanja mikroorganizama na Colletotrichum acutatum i Colletotrichum gloeosporioides

2010
Authors
Živković, Svetlana
Stojanović, S.
Ivanović, Žarko

Gavrilović, Veljko
Popović, Tatjana
Balaž, Jelica
Article (Published version)
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The antagonistic activities of five biocontrol agents: Trichoderma harzianum, Gliocladium roseum, Bacillus subtilis, Streptomyces noursei and Streptomyces natalensis, were tested in vitro against Colletotrichum acutatum and Colletotrichum gloeosporioides, the causal agents of anthracnose disease in fruit crops. The microbial antagonists inhibited mycelial growth in the dual culture assay and conidial germination of Colletotrichum isolates. The two Streptomyces species exhibited the strongest antagonism against isolates of C. acutatum and C. gloeosporioides. Microscopic examination showed that the most common mode of action was antibiosis. The results of this study identify T. harzianum, G. roseum, B. subtilis, S. natalensis and S. noursei as promising biological control agents for further testing against anthracnose disease in fruits.
Antagonističko delovanje pet agenasa biološke zaštite: Trichoderma harzianum, Gliocladium roseum, Bacillus subtilis, Streptomyces noursei i Streptomyces natalensis, testirano je in vitro na Colletotrichum acutatum i Colletotrichum gloeosporioides, prouzrokovače antraknoze plodova. Svi mikrobni antagonisti inhibiraju porast micelije u testovima dvojne kultivacije i klijavost konidija Colletotrichum izolata. Dve vrste roda Streptomyces ispoljavaju najjači stepen antagonizma prema izolatima C. acutatum i C. gloeosporioides. Mikroskopsko ispitivanje pokazuje da je antibioza najčešći način delovanja antagonista. T. harzianum, G. roseum, B. subtilis, S. natalensis i S. noursei su rezultatima ovih istraživanja identifikovani kao biološki agensi koji se mogu uspešno uključiti u buduća testiranja u cilju suzbijanja antraknoze plodova.
Keywords:
antagonistic activity / Colletotrichum acutatum / Colletotrichum gloeosporioides / Trichoderma harzianum / Gliocladium roseum / Bacillus subtilis / Streptomyces noursei / Streptomyces natalensisSource:
Archives of Biological Sciences, 2010, 62, 3, 611-623Publisher:
- University of Belgrade, University of Novi Sad
DOI: 10.2298/ABS1003611Z
ISSN: 0354-4664
WoS: 000281482000014
Scopus: 2-s2.0-77955180786
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