Odorous compounds in natural waters. Some sulfur compounds associated with blue-green algae

Marine microbial production of dimethylsulfide from dissolved dimethylsulfoniopropionate

“…DMS emission appears greatest during the senescent phase of freshwater cyanophyte blooms (21,79), although algal and bacterial production are difficult to distinguish. It seems likely that this production, regardless of the agent, is the result of enzymatic degradation, in which case the identity of the precursor is of interest.…”

Role of Microorganisms in the Atmospheric Sulfur Cycle

“…Although dimethyl sulfide is produced by enzymatic cleavage of DMPT in algal cells (Challenger, 1951;Challenger et al, 1957;Ishida, 1968;Kadota and Ishida, 1968), recent work indicates that production of dimethyl sulfide in aquatic environments results largely from bacterial decomposition of DMPT leaked from aged algal cells. Maloney (1963) found that malodorous organic compounds are retained within algal cells and are released through autolysis or mechanical disruption of these cells, and Jenkins et al (1967) noted that maximum odor release from eutrophic surface waters occurs during bacterial decay of algae following an algal bloom. and Bechard and Rayburn (1974) found that dimethyl sulfide was produced largely in old bacterized algal cultures (see also Jenkins et al, 1967).…”

“…Maloney (1963) found that malodorous organic compounds are retained within algal cells and are released through autolysis or mechanical disruption of these cells, and Jenkins et al (1967) noted that maximum odor release from eutrophic surface waters occurs during bacterial decay of algae following an algal bloom. and Bechard and Rayburn (1974) found that dimethyl sulfide was produced largely in old bacterized algal cultures (see also Jenkins et al, 1967). They also found that volatile organic sulfides were not produced in axenic cultures of algae belonging to the divisions Chlorophyta, Xanthophyta, and Bacillariophyta but that dimethyl sulfide was produced in axenic cultures of unicellular and nonheterocystous filamentous blue-green algae.…”

Characterization of Odorous Compounds in Rotten Blue-green Algae

“…I, wet volume 1.5 liters, dry weight 17.27 g) was frozen rapidly and then vacuum-distilled under a pressure of ca. 10- 4 Torr at room temperature. The distillate was shaken with ethyl ether (700 ml) after the addition of sodium chloride.…”

“…Jenkins et a1. 4 ) detected many sulfur-containing compounds by both spot tests and gas chromatography, when blue-green algae were cultivated.…”