DOI: 10.1111/gbi.12123
Scopus记录号: 2-s2.0-84922728118
论文题名: Mineralization of Alvinella polychaete tubes at hydrothermal vents
作者: Georgieva M.N. ; Little C.T.S. ; Ball A.D. ; Glover A.G.
刊名: Geobiology
ISSN: 1472-4677
EISSN: 1472-4669
出版年: 2015
卷: 13, 期: 2 起始页码: 152
结束页码: 169
语种: 英语
Scopus关键词: developmental biology
; fossilization
; hydrothermal vent
; mineralization
; molecular analysis
; polychaete
; polymer
; preservation
; protein
; pyrite
; East Pacific Rise
; Pacific Ocean
; Alvinella
; Alvinellidae
; Polychaeta
; biopolymer
; iron
; pyrite
; silicon dioxide
; sulfide
; animal
; chemical analysis
; chemistry
; fluorescence imaging
; fossil
; hydrothermal vent
; Polychaeta
; Animals
; Biopolymers
; Chemistry Techniques, Analytical
; Fossils
; Hydrothermal Vents
; Iron
; Optical Imaging
; Polychaeta
; Silicon Dioxide
; Sulfides
Scopus学科分类: Earth and Planetary Sciences: General Earth and Planetary Sciences
; Environmental Science: General Environmental Science
; Agricultural and Biological Sciences: Ecology, Evolution, Behavior and Systematic
英文摘要: Alvinellid polychaete worms form multilayered organic tubes in the hottest and most rapidly growing areas of deep-sea hydrothermal vent chimneys. Over short periods of time, these tubes can become entirely mineralized within this environment. Documenting the nature of this process in terms of the stages of mineralization, as well as the mineral textures and end products that result, is essential for our understanding of the fossilization of polychaetes at hydrothermal vents. Here, we report in detail the full mineralization of Alvinella spp. tubes collected from the East Pacific Rise, determined through the use of a wide range of imaging and analytical techniques. We propose a new model for tube mineralization, whereby mineralization begins as templating of tube layer and sublayer surfaces and results in fully mineralized tubes comprised of multiple concentric, colloform, pyrite bands. Silica appeared to preserve organic tube layers in some samples. Fine-scale features such as protein fibres, extracellular polymeric substances and two types of filamentous microbial colonies were also found to be well preserved within a subset of the tubes. The fully mineralized Alvinella spp. tubes do not closely resemble known ancient hydrothermal vent tube fossils, corroborating molecular evidence suggesting that the alvinellids are a relatively recent polychaete lineage. We also compare pyrite and silica preservation of organic tissues within hydrothermal vents to soft tissue preservation in sediments and hot springs. © 2014 The Authors. Geobiology Published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85153
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Life Sciences Department, The Natural History Museum, London, United Kingdom; Imaging and Analysis Centre, The Natural History Museum, London, United Kingdom
Recommended Citation:
Georgieva M.N.,Little C.T.S.,Ball A.D.,et al. Mineralization of Alvinella polychaete tubes at hydrothermal vents[J]. Geobiology,2015-01-01,13(2)