CHEMICAL MEDIATION OF COLONIZATION OF SEAWEED SURFACES1

CHEMICAL MEDIATION OF COLONIZATION OF SEAWEED SURFACES1
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海藻表面定殖的化学介导1

DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
R. de Nys
R. de Nys
中科院分区:
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文献类型:
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作者:
P. Steinberg;R. de Nys

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大型藻类菌体的表面被来自多种真核生物和原核生物的浮游繁殖体(幼虫、孢子、细胞等)定殖。海藻表面的定殖(这里广义地定义为包括沉降、附着、变态、生物膜形成和感染等过程)可以被这些表面产生的代谢物诱导和抑制。然而,海藻表面化学介导的相互作用的详细例子非常罕见,其中化学线索已被表征、原位量化、生物效应已确定,以及对海藻或殖民者的人口统计结果的影响非常罕见。在这里,我们简要回顾了有关定殖威慑剂(“天然防污剂”)和诱导剂以及海藻表面宿主与相关细菌生物膜之间相互作用的文献。出现的一个主题是强烈需要整合生态学、细胞生物学和化学,以了解表面活性分子的原位分布及其生态后果。海藻生物膜的研究进一步强调了这种多学科方法,最近开发的用于表征细菌群落的分子工具正在开辟海洋化学生态学的全新领域。最后,我们强调对该主题的综合方法,因为我们相信,有些不同领域的许多方面,包括例如幼虫沉降的诱导、藻类发病机制和细菌信号传导的分子生物学,可以在表面定植的化学介导的总体框架内有效地观察。
The surfaces of macroalgal thalli are colonized by planktonic propagules (larvae, spores, cells, etc.) from a wide diversity of eukaryotes and prokaryotes. Colonization (here defined broadly to include processes such as settlement, attachment, metamorphosis, biofilm formation, and infection) of seaweed surfaces can be both induced and inhibited by metabolites produced at those surfaces. However, detailed examples of chemically mediated interactions at seaweed surfaces for which chemical cues have been characterized, quantified in situ, a biological effect determined, and the consequences to the demography of the seaweeds or colonizers demonstrated are very rare. Here we briefly review the literature on both deterrents (“natural antifoulants”) and inducers of colonization and on interactions at seaweed surfaces between the hosts and associated bacterial biofilms. One theme that emerges is the strong need to integrate ecology, cell biology, and chemistry to understand the distribution of surface‐active molecules in situ and their ecological consequences. This multidisciplinary approach is further emphasized for research on biofilms on seaweeds, where recently developed molecular tools for characterizing bacterial communities are opening up an entire new area of marine chemical ecology. Finally, we emphasize an integrated approach to the topic, as we believe that many aspects of somewhat disparate fields including, for example, induction of larval settlement, algal pathogenesis, and the molecular biology of bacterial signaling can be usefully viewed within the overall framework of chemical mediation of surface colonization.
DOI: 10.1126/science.280.5361.295
发表时间: 1998-04-10
期刊: SCIENCE
影响因子: 56.9
作者:
Davies, DG;Parsek, MR;Greenberg, EP
通讯作者: Greenberg, EP