Formation of dimethyloligosulfides in Lake Kinneret: Biogenic formation of inorganic oligosulfide intermediates under oxic conditions

Journal Article · Mon Feb 15 04:00:00 EST 1999 · Environmental Science and Technology

DOI:https://doi.org/10.1021/es980636e· OSTI ID:330529

Ginzburg, B; Dor, I; Chalifa, I; Lev, O ^[1]; Hadas, O ^[2]

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1. Hebrew Univ. of Jerusalem (Israel)
2. Israel Oceanographic and Limnological Research, Ltd., Tiberias (Israel). Yigal Alon Kinneret Limnological Lab.

The mechanism of formation of dimethyloligosulfides in Lake Kinneret was investigated by field and laboratory studies. The process was simulated under laboratory conditions using obligate aerobic and facultative bacteria that were isolated from Lake Kinneret and fed with different types of organo-sulfur nutrients. The lysis products of Peridinium gatunense--a dinoflagellate that dominates the phytoplankton population in Lake Kinneret during the winter-spring season--are the primary source of dimethyloligosulfides. Bacterial assimilation of the aged alga or algae lysis products yields inorganic oligosulfides, which are then methylated to form the dimethyloligosulfides. All the steps of this process are carried out under oxic conditions.

• OSTI ID: 330529
• Journal Information: Environmental Science and Technology, Journal Name: Environmental Science and Technology Journal Issue: 4 Vol. 33; ISSN ESTHAG; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROBIC CONDITIONS
LAKES
ORGANIC SULFUR COMPOUNDS
SEASONAL VARIATIONS
SULFIDES
WATER CHEMISTRY
WATER POLLUTION