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KMID : 0364820120480040325
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Korean Journal of Microbiology
2012 Volume.48 No. 4 p.325 ~ p.327
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Growth Inhibition of Plant Pathogenic Fungi by a Chitinase of Coprinellus congregatus
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Kang Yu-Ri
Choi Hyoung-T.
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Abstract
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Experiments for growth inhibition of two different plant pathogenic fungal species, Alternaria alternata
(KCTC26781) and Fusarium graminearum ZO3639 (type culture) and ASR1R1 (isolate from rice), by a chitinase
(Chi2) expressed in the autolysing tissue of Coprinellus congregatus were carried out. In liquid media, Chi2 (50 μg/ml)
inhibited more than 90% of germination of A. alternata spore, and the growth of each fungal strain was totally
inhibited by the addition of Chi2 at the concentrations of 70 μg/ml. When 6 μg of Chi2 was added twice a day at the
hyphal tip zone, both strains of F. graminearum showed growth inhibition as well as decreased hyphal branching.
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KEYWORD
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Alternaria alternata, Coprinellus congregatus, Fusarium graminearum chitinase
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