Direct use of high molecular weight polysaccharide by heterotrophic flagellates

Abstract

In aquatic ecology it is assumed that the heterotrophic (non-photosynthetic) protozoa that are abundant in marine and fresh water cannot compete with smaller-sized bacteria for labile dissolved substrates of low relative molecular mass (Mr), such as simple sugars and amino acids, at the low concentrations found in situ1,2 (typically 1–100 μg litre−1… (More)
DOI: 10.1038/335348a0

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