Occurrence of 3-hydroxy acids in microalgae and cyanobacteria and their geochemical significance

Matsumoto, Genki I.; Nagashima, Hideyuki

doi:10.1016/0016-7037(84)90337-5

Cited by 40 publications

(12 citation statements)

References 27 publications

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“…Hydroxy acids occur in vascular plants and a wide variety of microorganisms, such as bacteria, yeasts and fungi, but little is known of their presence in cyanobacteria and algae (Pohl & Wagner, 1972;Boon et al, 1977;Cardoso & Eglinton, 1983;Matsumoto & Nagashima, 1984;Matsumoto et al, 1984a). 2-, 3-and o-1-Hydroxy acids of carbon chain lengths between C, and C,, have been detected in sediment samples from Lakes Vanda, Bonney, Fryxell and Joyce and in epibenthic organisms (mostly cyanobacteria) from the Dry Valleys of the McMurdo Oasis .…”

Section: Hydroxy Acidsmentioning

confidence: 99%

Biogeochemical study of organic substances in Antarctic lakes

Matsumoto

1989

Hydrobiologia

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Section: Hydroxy Acidsmentioning

confidence: 99%

Biogeochemical study of organic substances in Antarctic lakes

Matsumoto

1989

Hydrobiologia

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“…Mass spectra (m/z 50-600) were obtained continuously at 1.5 set intervals at an ionization energy of 70 eV. The identification of each compound was made by comparison of retention times and mass spectra with those of authentic standards and published literature (Eglinton et al, 1968;Boon etal., 1977a;Matsumoto et al, 1979Matsumoto et al, , 1984aMatsumoto & Nagashima, 1984). …”

Section: Physicochemical Propertiesmentioning

confidence: 99%

“…Hydroxy acids also occur in a wide variety of microorganisms, such as bacteria, yeasts and fungi, and higher plants, although little is known of their occurrence in cyanobacteria and other algae (Matsumoto & Nagashima, 1984;Matsumoto et al, 1984a). Only microorganisms occur in Lake Fryxell, although there is scattered moss vegetation around the lake.…”

Section: Introductionmentioning

confidence: 99%

“…The major organisms in the water column of the lake can be expected to be algae, cyanobacteria and bacteria. Normal-saturated and unsaturated fatty acids may reflect the abundances of algae and cyanobacteria (e.g, Weete, 1976), while iso-and anteiso-branched fatty acids (e.g., Kaneda, 1967) and 3-hydroxy acids (e.g., Wilkinson et al, 1972;Matsumoto & Nagashima, 1984) may correlate with the bacterial distribution. Also short-chain ( <CZo) n-alkanes and alkenes may be a marker of certain algae and cyanobacteria, whereas long-chain (2 C,,) hydrocarbons may have arisen from some bacteria (Albro, 1976) and fungi (Weete, 1976).…”

Section: Introductionmentioning

confidence: 99%

“…ISOand anteiso-3-hydroxy acids were major components of 3-hydroxy acids in all the water column samples. These 3-hydroxy acids are thought to be derived mainly from bacteria, notably sulfate reducing bacteria, because branched 3-hydroxy acids are abundant in bacterial lipids (Wilkinson, 1972;Moss et al, 1973;Yano et al, 1976;Boon et al, 1977b;Mayberry, 1980;Matsumoto & Nagashima, 1984). Anteiso-3-hydroxy acids increased from a depth of 10 m, suggesting variations in vertical distribution of bacterial species.…”

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Vertical distribution of organic constituents in an Antarctic lake: Lake Fryxell

1989

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Vertical distribution of organic constituents, i.e. total organic carbon (TOC), hydrocarbons, fatty acids and hydroxy acids in water and sediment samples from Lake Fryxell(77" 35' S, 163' 15' E) of southern Victoria Land, Antarctica were studied to elucidate their features in relation to stratification of the lake waters and likely distribution of microorganisms. The TOC content of the surface water (5.0 m; just below the ice cover of 4.50 m thickness) was 1.4 mg l-'. It increased markedly with depth and attained a maximum value of 21.7 mg C l-' at a depth of 17.5 m, but decreased to the bottom (13.3 mg C l-'). The high TOC content of the anoxic bottom layers (> 15 m) is attributable to the concentration of refractory organic substances over long periods following the degradation of labile organic constituents. Hydrocarbons were not found in the water column, but the major constituent of the bottom sediment was n-C,, : 2 alkene. Total concentrations of fatty acids in the oxic layers (< 10 m) were highest at 10.0 m and much higher than those in the anoxic layers (> 10 m), probably reflecting the phytoplankton population. The content of branched (iso and anteiso) fatty acids and 3-hydroxy acids in the anoxic layers were much greater than those in the oxic layers which would seem to reflect the distribution of bacterial abundance. The differences of organic composition between the water column and sediments imply that sinking dead organisms were quickly degraded in the lake bottom. Also, the composition of microorganisms in the water column must be very different from that in the sediments.

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Hydroxy fatty acids in snow pit samples from Mount Tateyama in central Japan: Implications for atmospheric transport of microorganisms and plant waxes associated with Asian dust

et al. 2016

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We report here the source apportionment of atmospheric soil microorganisms and higher plant metabolites based on chemical markers (hydroxy fatty acids: FAs) in the snowpack samples collected from Mount Tateyama in central Japan during spring 2009 (N = 6) and 2011 (N = 7). A homologous series of β‐hydroxy FAs (C9–C20), constituents of Gram‐negative bacteria (GNB), in snowpacks clearly suggest a long‐range atmospheric transport of dust‐associated bacteria followed by scavenging by snowflakes. Similarly, higher atmospheric abundances of α‐(C16–C32) and ω‐(C9–C30)‐hydroxy FAs in the snow layers containing Asian dust revealed contributions from soil microbes and higher plant epicuticular waxes. Moreover, covariation between the concentrations of hydroxy FAs and water‐soluble Ca2+ (dust tracer), together with calculated air mass backward trajectories, demonstrated their source regions such as the Taklamakan Desert, Gobi Desert, and Loess Plateau. A close match of molecular distributions of hydroxy FAs (with the predominance of ω‐ and β‐isomers) is noteworthy between snowpack (present study) and springtime aerosols from Chichijima Island in the western North Pacific (WNP). This observation suggests a “below‐cloud scavenging” of transported dust particles and associated soil microbes in the East Asian outflow by snowflakes. These distributions are, however, contrary to those observed in the fresh snow samples from Sapporo, northern Japan (predominance of α‐hydroxy FAs), which could be explained by “in‐cloud” microbial oxidation processes. This comparison, therefore, provides additional insights regarding the aeolian transport of soil microbes in the East Asian outflow to the WNP, which has not been available.

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Occurrence of 3-hydroxy acids in microalgae and cyanobacteria and their geochemical significance

Cited by 40 publications

References 27 publications

Biogeochemical study of organic substances in Antarctic lakes

Biogeochemical study of organic substances in Antarctic lakes

Vertical distribution of organic constituents in an Antarctic lake: Lake Fryxell

Hydroxy fatty acids in snow pit samples from Mount Tateyama in central Japan: Implications for atmospheric transport of microorganisms and plant waxes associated with Asian dust

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