Antifungal activity and enhancement of plant growth by Bacillus cereus grown on shellfish chitin wastes

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Title:	Antifungal activity and enhancement of plant growth by Bacillus cereus grown on shellfish chitin wastes
Authors:	張文智;Chang, Wen-Teish;陳昱仲;饒家麟;Jao, Chia-Ling;(東方技術學院食品科技系)
Keywords:	Bacillus cereus;Chitinase;Chitosanase;Protease;Shrimp and crab shell powder
Date:	2006-06-21
Issue Date:	2009-10-13 13:32:59 (UTC+8)
Abstract:	Bacillus cereus QQ308 produced antifungal hydrolytic enzymes, comprising chitinase, chitosanase and protease, when grown in a medium containing shrimp and crab shell powder (SCSP) produced from marine waste. The growth of the plant-pathogenic fungi Fusarium oxysporum, Fusarium solani, and Pythium ultimum were considerably affected by the presence of the QQ308 culture supernatant. The supernatant inhibited spore germination and germ tube elongation of F oxysporum, F solani, and P. ultimum. The increase in the growth time of the fungal culture was associated with a gradual decrease in inhibition. Besides antifungal activity, QQ308 enhanced growth of Chinese cabbage. These characteristics were unique among known strains of B. cereus. To our knowledge, this is the first report on the antifungal and Chinese cabbage growth enhancing compounds produced by B. cereus. (c) 2006 Elsevier Ltd. All rights reserved.
Relation:	Bioresource Technology, Vol.98 no.6, pp.1224-1230
Appears in Collections:	[Department of Food Science and Technology] journal

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