Journal ArticleDOI
An anaerobic ciliate as a natural chemostat for the growth of endosymbiotic methanogens
Bland J. Finlay,Tom Fenchel +1 more
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TLDR
The growth rates of ciliates and methanogens are approximately equivalent, and the only exception occurs in ciliate showing no net growth, when substrate supply within the ciliate is still sufficient to promote measurable growth of methanogenic growth.About:
This article is published in European Journal of Protistology.The article was published on 1992-05-22. It has received 24 citations till now. The article focuses on the topics: Ciliate & Methanogen.read more
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Journal ArticleDOI
Introns and the origin of nucleus–cytosol compartmentalization
William Martin,Eugene V. Koonin +1 more
TL;DR: It is proposed that the nuclear envelope's incipient function was to allow mRNA splicing to go to completion so that translation, which is fast, would occur only on mRNA with intact reading frames.
Journal ArticleDOI
Soil protists: a fertile frontier in soil biology research.
Stefan Geisen,Edward A. D. Mitchell,Sina M. Adl,Michael Bonkowski,Micah Dunthorn,Flemming Ekelund,Leonardo D. Fernández,Alexandre Jousset,Valentyna Krashevska,David Singer,Frederick W. Spiegel,Julia Walochnik,Enrique Lara +12 more
TL;DR: An overview of the enormous morphological, taxonomical and functional diversity of soil protists is provided, and current challenges and opportunities in soil protistology are discussed.
Journal ArticleDOI
The use of small subunit rRNA sequences to unravel the relationships between anaerobic ciliates and their methanogen endosymbionts
TM Embley,Finlay Bj +1 more
TL;DR: The Archezoa are living ‘relics’ of the earliest phase of anaerobic eukaryotic evolution which occurred when free oxygen was scarce in the atmosphere.
Book ChapterDOI
Bacterial Endocytobionts of Ciliophora and Their Interactions with the Host Cell
TL;DR: In this paper, extensive material concerning the variety of endocytobionts, their categories, and their interaction with host cells is presented, and special attention is paid to endocyte-obiosis in Paramecium with highly infectious bacteria Holospora, bacteria of the Caedibacter and Polynucleobacter genera, methanogenic bacteria, and "xenosomes" as well as to life cycles and strategies of bacterial endonucleobions.
Journal ArticleDOI
Global distribution of free‐living microbial species
TL;DR: Investigating the ciliated protozoa living in a habitat that is separated from northern Europe by geographical barriers and great distance - the sediment of a Holocene volcanic crater-lake with brackish water, in Australia finds all species appear to have reached the crater by passive dispersal from other freshwater and marine environments.
References
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Book ChapterDOI
Stereological principles for morphometry in electron microscopic cytology.
TL;DR: This chapter focuses on the stereological principles for morphometry in electron microscopic cytology and the possibilities of applying morphometric methods to correlative cell biology.
Journal ArticleDOI
Isolation of Methanobrevibacter smithii from human feces
TL;DR: In immunological studies, each isolate was closely related to the type strain of Methanobrevibacter smithii, a finding consistent with the physiological and morphological similarities between the isolates and thetype strain.
Journal ArticleDOI
Factors influencing the population of methanogenic bacteria and the initiation of methane production upon flooding of paddy soil
H. Peter Mayer,Ralf Conrad +1 more
TL;DR: In this paper, the authors found that exposure of dry oxic paddy sol to submerged anoxic conditions resulted in a decrease of the soil redox potential and initiation of CH4 production, but the most probable numbers (MPN) of hydrogenotrophic and acetotrophic methanogens did not change upon flooding the soil, and stayed constant at 105−106 and 104−105 g−1 d.w.
Journal ArticleDOI
The biology of free-living anaerobic ciliates
Tom Fenchel,Bland J. Finlay +1 more
TL;DR: It is concluded that the evolution of anaerobic forms has taken place independently within different taxonomic groups and that hydrogenosomes are modified mitochondria.
Journal ArticleDOI
Symbiosis of methanogenic bacteria and sapropelic protozoa
TL;DR: The physiological background of this endosymbiosis and its functioning in degradation processes in the anoxic environment are discussed.
Related Papers (5)
Anaerobic free-living protozoa: growth efficiencies and the structure of anaeorobic communities
Tom Fenchel,Bland J. Finlay +1 more