Variation of antimicrobial activity of the sponge Aplysina fistularis (Pallas, 1766) and its relation to associated fauna
Variation of antimicrobial activity of the sponge Aplysina fistularis (Pallas, 1766) and its relation to associated fauna
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DOI：
10.1016/s0022-0981(97)00153-6
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发表时间：
1998-05-01
影响因子：
2
通讯作者：
Bastida-Zavala, JR
中科院分区：
文献类型：
--
作者：
Betancourt-Lozano, M;Gonzalez-Farias, F;Bastida-Zavala, JR
研究了海绵Aplysina fistularis（Pallas，1766），以确定它是否在一年周期中产生不同水平的抗生素活性，并试图建立这种现象的一些生态关系。1989年5月至1990年6月，在墨西哥南下加利福尼亚的圣埃斯皮里图岛每月采集海绵。进行了抗菌药物敏感性的生物测定，并记录了相关微生物的密度。海绵的抗菌活性水平与其趋化性水平相关。由于总是发现抗微生物活性，我们认为代谢产物是连续产生的，尽管海绵可能能够在特定刺激存在下改变物质产生机制。相关无脊椎动物的大量繁殖和大量生物体在短时间内的到来可能是海绵的重要压力因素，也是改变次级代谢产物产生的刺激因素。(C)1998年Elsevier Science B.V.
The sponge Aplysina fistularis (Pallas, 1766) was studied to determine if it produces different levels of antibiotic activity during an annual cycle, and to try to establish some ecological relations of this phenomenon. Monthly collections of sponges were made at Isla Espiritu Santo, Baja California Sur, Mexico from May 1989 to June 1990. Bioassays of antimicrobial susceptibility were carried out and densities of the associated organisms were recorded. Antibiotic activity levels of the sponge correlated with inquilism level. Because antimicrobial activity was always found, we believe that metabolites are produced continuously, although the sponge is probably able to change the substance production mechanism in the presence of a particular stimulus. The massive reproduction of the associated invertebrates and the arrival of large quantities of organisms over a short time could be important stress factors for the sponge and a stimulus that modifies the production of secondary metabolites. (C) 1998 Elsevier Science B.V.