Compound-Specific Isotopic Fractionation Patterns Suggest Different Carbon Metabolisms among Chloroflexus-Like Bacteria in Hot-Spring Microbial Mats
Compound-Specific Isotopic Fractionation Patterns Suggest Different Carbon Metabolisms among Chloroflexus-Like Bacteria in Hot-Spring Microbial Mats
复制标题
化合物特异性同位素分馏模式表明温泉微生物垫中类绿屈菌细菌的碳代谢不同
DOI：
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发表时间：
2003
影响因子：
4.4
通讯作者：
D. M. Ward
中科院分区：
文献类型：
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作者：
M. V. D. van der Meer;Stefan Schouten;J. S. Sinninghe Damsté;J. D. de Leeuw;D. M. Ward
摘要溶解的无机碳和脂类生物标志物之间的稳定碳同位素分馏表明，硫化和非硫化黄石温泉中的类叶绿藻生物具有光自养作用。在共生的地方，蓝藻似乎也交叉摄食支持光异质营养的类绿藻生物，尽管与蓝藻糖生物合成相关的相对较小的13C分馏有时可能掩盖这一过程。
ABSTRACT Stable carbon isotope fractionations between dissolved inorganic carbon and lipid biomarkers suggest photoautotrophy by Chloroflexus-like organisms in sulfidic and nonsulfidic Yellowstone hot springs. Where co-occurring, cyanobacteria appear to cross-feed Chloroflexus-like organisms supporting photoheterotrophy as well, although the relatively small 13C fractionation associated with cyanobacterial sugar biosynthesis may sometimes obscure this process.