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. 1981 Jul;42(1):150–158. doi: 10.1128/aem.42.1.150-158.1981

Effect of Light on Biomass and Community Structure of Estuarine Detrital Microbiota

R J Bobbie 1, J S Nickels 1, G A Smith 1, S D Fazio 1, R H Findlay 1, W M Davis 1, D C White 1
PMCID: PMC243977  PMID: 16345808

Abstract

Comparison of estuarine detrital microbiota grown with and without light in the absence of macroscopic grazing showed shifts in the community structure that enabled correlation between various biochemical measures. Analysis of these biochemical measures showed that growth in light induces the smallest increases in procaryotic attributes such as muramic acid; wall glucosamine; lipid phosphate; total extractable adenosine nucleotides; short-branched, cyclopropane, and cis-vaccenic fatty acids; lipid glucose and mannose; the incorporation of acetate into lipid; and the formation of deoxyribonucleic acid from thymidine. Measures of the microfauna such as lipid inositol and the γ-linolenic series of polyenoic fatty acids also increased minimally in the light-grown microbiota. Measures of sulfo-lipid synthesis, lipid glycerol, total extractable palmitate, 18-carbon polyenoic fatty acids, and total polyenoic fatty acids longer than 20 carbons increased 10- to 15-fold in algae and fungi. Chlorophyll a, lipid galactose, and the 16- and 20- carbon polyenoic fatty acids characteristic of diatoms increased maximally in the light. This increase of diatom measure correlated with the sheets of diatoms detected by scanning electron microscopy.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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