Goni, Miguel A. published the artcileThe diagenetic behavior of cutin acids in buried conifer needles and sediments from a coastal marine environment, Name: 17-Hydroxyheptadecanoic acid, the main research area is cutin acid diagenesis coastal sediment; diagenesis cutin acid forest litter; conifer needle cutin acid composition; fatty acid diagenesis needle sediment.
Whole green, litter, and sedimentary fir, hemlock, and cedar needles and bulk sediments collected from the Dabob Bay region in Washington State were analyzed for their cutin-derived CuO reaction products. All samples yielded dihydroxyhexadecanoic acid isomers (x,ω-C16), 16-hydroxyhexadecanoic acid (ω-C16), 14-hydroxytetradecanoic acid (ω-C14), and 18-hydroxyoctadec-9-enoic acid (ω-C18:1) as the major cutin acids. Fir/hemlock needle mixtures were characterized by a high abundance of the 9,16-dihydroxyhexadecanoic acid positional isomer, while cedar needles produced primarily the 10,16-dihydroxy counterpart. Cutin acids accounted for ∼3% of tissue C in green needles, ∼4% in needle litter, 0.5-1.5% in sedimentary needles, and ∼0.1% of the organic C (OC) in bulk sediments. Approx. 80% of the original cutin acids in fresh green needles were lost from the deepest (∼100 yr old) sedimentary tissues. Cutin was more active than lignin and polysaccharides, but more stable than the cyclitol components of the same needles. Comparative diagenetic losses of the individual cutin acids were not uniform and suggest that addnl. hydroxy groups and the presence of C double bonds both increase overall reactivity. The relative stability series derived for all the mol. constituents measured is: total vanillyl phenols > total p-hydroxy phenols, ferulic acid, most aldoses, bulk organic matter > mannose, ω-C14, ω-C16 ≥ ω-C18:1 > glucose, p-coumaric acid, x,ω-C16 > all cyclitols. Diagenetically induced changes in the various cutin parameters used to characterize nonwoody vascular plant tissues were not large enough to confuse degraded conifer tissues with other cutin sources. Based on these trends, the finely disseminated cutin-bearing tissues in Dabob Bay sediments appear to be comprised approx. of equal amounts of highly degraded fir/hemlock and cedar needle fragments. According to this estimate, nonwoody vascular plant debris accounted for ∼15% of the total organic matter present in these sediments.
Geochimica et Cosmochimica Acta published new progress about Bay sediments. 13099-34-8 belongs to class alcohols-buliding-blocks, name is 17-Hydroxyheptadecanoic acid, and the molecular formula is C17H34O3, Name: 17-Hydroxyheptadecanoic acid.
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