Nutritional Relationships Among Microorganisms in an Epilithic Biofilm Community

dc.contributor.authorHaack, T. K.
dc.contributor.authorMcFeters, Gordon A.
dc.date.accessioned2017-10-31T14:59:32Z
dc.date.available2017-10-31T14:59:32Z
dc.date.issued1982-10
dc.description.abstractPrevious studies of an epilithic algal-bacterial community in a pristine mountain stream suggested that heterotrophic bacteria were responding to the metabolic activities of the phototrophic population. Subsequent studies were performed to follow the flow of labeled carbon, from its initial inorganic form, through the trophic levels of the mat community. A majority of primary production metabolites were excreted by the algal population during active growth; this shifted to an incorporation into cellular material as phototrophic activity declined. Results suggest that there was a direct flux of soluble algal products to the bacterial population, with little heterotrophic utilization of dissolved organics from the overlying stream water. Both phototrophic productivity and bacterial utilization of algal products peaked at approximately the same time of year. Activity of the diatom-dominated algal population declined as silica concentrations in the stream water dropped, leading to a situation in which the sessile bacteria were substrate limited. These events resulted in an almost complete disappearance of the community in early September.en_US
dc.identifier.citationHaack, T.K. and G.A. McFeters, “Nutritional Relationships Among Microorganisms in an Epilithic Biofilm Community,” Microbial Ecology, 8:115-126 (1982).en_US
dc.identifier.issn0095-3628
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/13878
dc.titleNutritional Relationships Among Microorganisms in an Epilithic Biofilm Communityen_US
dc.typeArticleen_US
mus.citation.extentfirstpage115en_US
mus.citation.extentlastpage126en_US
mus.citation.issue2en_US
mus.citation.journaltitleMicrobial Ecologyen_US
mus.citation.volume8en_US
mus.data.thumbpage8en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1007/bf02010445en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US

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