Community structure of ammonia-oxidizing marine archaea differs by depth of collection and temperature of cultivation
Community structure of ammonia-oxidizing marine archaea differs by depth of collection and temperature of cultivation
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DOI：
10.1007/s10872-011-0066-8
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发表时间：
2011-12-01
影响因子：
2.3
通讯作者：
Hamasaki, Koji
中科院分区：
文献类型：
--
作者：
Ijichi, Minoru;Hamasaki, Koji
通过对氨单加氧酶亚基A（amoA）基因的测序，分析了海洋氨氧化古菌（AOA）的群落结构。细胞在不同温度下在富含铵的海水中生长。在培养前检索的大多数amoA克隆属于水柱簇B（WCB）;然而，在高温下孵育后检索的大多数克隆属于水柱簇A（WCA）或海洋亚硝化菌样（NM）组。NM和WCA类群中的某些操作分类单位可能比WCB类群中的操作分类单位更能适应较高的温度。因此，AOA组之间的不同温度适应可能与群落结构和深度分布有关。
We analyzed the community structure of marine ammonia-oxidizing archaea (AOA) by sequencing the ammonia monooxygenase subunit A (amoA) gene. Cells were grown in ammonium-enriched seawater at various temperatures. Most amoA clones retrieved prior to cultivation belonged to Water Column Cluster B (WCB); however, most clones retrieved after incubation at high temperature belonged to Water Column Cluster A (WCA) or the Nitrosopumilus maritimus-like (NM) group. Some operational taxonomic units in the NM and WCA groups may be better adapted to higher temperature than those in WCB. Hence, differing temperature adaptations among AOA groups may be related to community structures and depth distributions.