Fradet Danielle T, Tavormina Patricia L, Orphan Victoria J
Flintridge Sacred Heart Academy , La Canada Flintridge, CA , United States.
Geological and Planetary Sciences, California Institute of Technology , Pasadena, CA , United States.
PeerJ. 2016 Jul 12;4:e2116. doi: 10.7717/peerj.2116. eCollection 2016.
Proteobacteria capable of converting the greenhouse gas methane to biomass, energy, and carbon dioxide represent a small but important sink in global methane inventories. Currently, 23 genera of methane oxidizing (methanotrophic) proteobacteria have been described, although many are represented by only a single validly described species. Here we describe a new methanotrophic isolate that shares phenotypic characteristics and phylogenetic relatedness with the marine methanotroph Methylomarinum vadi. However, the new isolate derives from a terrestrial saline mud pot at the northern terminus of the Eastern Pacific Rise (EPR). This new cultivar expands our knowledge of the ecology of Methylomarinum, ultimately towards a fuller understanding of the role of this genus in global methane cycling.
能够将温室气体甲烷转化为生物质、能量和二氧化碳的变形菌在全球甲烷库存中占比虽小但却十分重要。目前，已描述了23个甲烷氧化（甲烷营养型）变形菌属，不过其中许多仅由一个有效描述的物种代表。在此，我们描述了一种新的甲烷营养型分离株，它与海洋甲烷营养菌瓦迪甲基海菌具有表型特征和系统发育相关性。然而，这种新的分离株源自东太平洋海隆（EPR）北端的陆地盐碱泥火山口。这个新的培养品种扩展了我们对甲基海菌生态学的认识，最终有助于更全面地理解该属在全球甲烷循环中的作用。
