M
Maria Tourna
Researcher at AgResearch
Publications - 9
Citations - 1065
Maria Tourna is an academic researcher from AgResearch. The author has contributed to research in topics: Phasmarhabditis hermaphrodita & Phasmarhabditis. The author has an hindex of 8, co-authored 9 publications receiving 927 citations. Previous affiliations of Maria Tourna include University of Vienna.
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Journal ArticleDOI
Nitrososphaera viennensis, an ammonia oxidizing archaeon from soil
Maria Tourna,Michaela Stieglmeier,Anja Spang,Martin Könneke,Arno Schintlmeister,Tim Urich,Marion Engel,Michael Schloter,Michael Wagner,Andreas Richter,Christa Schleper +10 more
TL;DR: The cultivation and isolation of an AOA from soil is described, showing it grows on ammonia or urea as an energy source and is capable of using higher ammonia concentrations than the marine isolate, Nitrosopumilus maritimus.
Journal ArticleDOI
Links between sulphur oxidation and sulphur-oxidising bacteria abundance and diversity in soil microcosms based on soxB functional gene analysis.
TL;DR: A molecular approach based on primer design targeting the soxB functional gene of nonfilamentous chemolithotrophic SOB that allows assessment of both abundance and diversity is developed, providing evidence for links between abundance and Diversity of SOB and sulphur oxidation.
Journal ArticleDOI
Seasonal and vertical distribution of putative ammonia-oxidizing thaumarchaeotal communities in an oligotrophic lake
Elisabeth W. Vissers,Cornelia I. Blaga,Paul L. E. Bodelier,Gerard Muyzer,Christa Schleper,J.S. Sinninghe Damsté,Maria Tourna,Hendrikus J. Laanbroek +7 more
TL;DR: The ecology of Thaumarchaeota, with their potential in nitrogen cycling, may differ per water depth in deep freshwater ecosystems, as indicated by the results of a seasonal and vertical study of deep oligotrophic Lake Lucerne, Switzerland.
Journal ArticleDOI
The slug parasitic nematode Phasmarhabditis hermaphrodita associates with complex and variable bacterial assemblages that do not affect its virulence.
TL;DR: It is shown that when reared in vivo in slugs, P. hermaphrodita does not retain M. osloensis and associates with complex and variable bacterial assemblages that do not influence its virulence.
Temporal and Spatial Coexistence of Archaeal and BacterialamoAGenes and Gene Transcripts in Lake Lucerne
Elisabeth W. Vissers,Flavio S. Anselmetti,Paul L. E. Bodelier,Gerard Muyzer,Christa Schleper,Maria Tourna,Hendrikus J. Laanbroek +6 more
TL;DR: This study of Lake Lucerne determined the abundance of both amoA genes and gene transcripts of ammonia-oxidizing archaea (AOA) and bacteria (AOB) over a period of 16 months, shedding more light on the role of both AO in a deep, alpine lake environment.