Biological activity of a red-tide alga - A-tamarense under co-cultured condition with bacteria

	Biological activity of a red-tide alga - A-tamarense under co-cultured condition with bacteria
	Su, JQ ; Yu, ZM; Tian, Y ; Song, XX; Hong, HS ; Zheng, TL
	2005
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN	1001-0742
卷号	17 期号:6 页码:1047-1050
文章类型	Article
摘要	The relationship between Alexandrium tamarense (Lebour) Balech, one of red-tide alga, and two strains of marine bacteria, Bacillius megaterium(S-7) and B. halmapulus(S-10) isolated from Xiamen Western Sea, was investigated by evaluating the growth state of A. tamarense and the variation of P-glucosidase activity in co-culture system. The results showed the growth and multiplication of the alga were related with the concentration, genus speciality of the bacteria, and growth stage of the alga itself. The growth of A. tamarense was obviously inhibited by S7 and S, at high concentration. Either inhibition or promotion contributed much more clearly in earlier than in later stage of the growth of the alga. Furthermore, there was a roughly similar variation trend of the activity of extra-cellular enzyme, beta-glucosidase, in the water of the separately co-cultured bacteria S-7 and S-10 with the alga. The beta-glucosidase activity (beta-GlcA) rapidly increased during the later algal growth accompanying the increase of the lysis of the alga cells. The obvious inhibition of A. tamarense by marine bacteria at high concentration and evident increase of beta-GlcA in co-colture system would help us in better understanding the relationship between red-tide alga and bacteria, and also enlightened us the possible use of bacteria in the bio-control of red-tide.; The relationship between Alexandrium tamarense (Lebour) Balech, one of red-tide alga, and two strains of marine bacteria, Bacillius megaterium(S-7) and B. halmapulus(S-10) isolated from Xiamen Western Sea, was investigated by evaluating the growth state of A. tamarense and the variation of P-glucosidase activity in co-culture system. The results showed the growth and multiplication of the alga were related with the concentration, genus speciality of the bacteria, and growth stage of the alga itself. The growth of A. tamarense was obviously inhibited by S7 and S, at high concentration. Either inhibition or promotion contributed much more clearly in earlier than in later stage of the growth of the alga. Furthermore, there was a roughly similar variation trend of the activity of extra-cellular enzyme, beta-glucosidase, in the water of the separately co-cultured bacteria S-7 and S-10 with the alga. The beta-glucosidase activity (beta-GlcA) rapidly increased during the later algal growth accompanying the increase of the lysis of the alga cells. The obvious inhibition of A. tamarense by marine bacteria at high concentration and evident increase of beta-GlcA in co-colture system would help us in better understanding the relationship between red-tide alga and bacteria, and also enlightened us the possible use of bacteria in the bio-control of red-tide.
关键词	Alexandrium Tamarense Beta-glucosidase Bacteria
学科领域	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000233402200036
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2694
专题	海洋生态与环境科学重点实验室
作者单位	1.Xiamen Univ, Sch Life Sci, Xiamen 361005, Peoples R China 2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China 3.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Su, JQ,Yu, ZM,Tian, Y,et al. Biological activity of a red-tide alga - A-tamarense under co-cultured condition with bacteria[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2005,17(6):1047-1050.
APA	Su, JQ,Yu, ZM,Tian, Y,Song, XX,Hong, HS,&Zheng, TL.(2005).Biological activity of a red-tide alga - A-tamarense under co-cultured condition with bacteria.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,17(6),1047-1050.
MLA	Su, JQ,et al."Biological activity of a red-tide alga - A-tamarense under co-cultured condition with bacteria".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 17.6(2005):1047-1050.

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