共查询到20条相似文献,搜索用时 16 毫秒
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Kies 《International Review of Hydrobiology》1978,63(1):124-124
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U. Grünewald 《International Review of Hydrobiology》1991,76(3):473-474
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H. Caspers 《International Review of Hydrobiology》1980,65(2):248-248
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Lawrence Krader 《American anthropologist》1953,55(5):719-720
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Erna Weber 《Biometrical journal. Biometrische Zeitschrift》1975,17(2):133-133
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Fritz Süffert 《Zoomorphology》1924,1(2):171-308
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„Biofilm”︁ describes microbial aggregates such as flocs, films and sludges; most microorganisms on earth prefer the mode of life in aggregates.They all have in common that the organisms are embedded in a matrix of extracellular polymeric substances (EPS) in which they can establish synergistic microconsortia. In this matrix, they are protected against biocides. Furthermore, the matrix acts as a sorbent for nutrients, retains exoenzymes and can be considered as a recycling yard for cellular components as well as for nutrients. Biofilms are ubiquitous and can be found even in extreme environments. In many cases, they are dominated by bacteria and/or algae, but they can also harbor higher trophical levels and represent a nutrient source for protozoa and metazoa. Biofilms are systems characterized by a vast spatial heterogeneity and temporal dynamics. Genes and signals are exchanged intensively. Thus, biofilms bear similarities to multicellular organisms. 相似文献