نتایج جستجو برای: double colonisation

تعداد نتایج: 244512  

Journal: :médecine/sciences 2008

Journal: :Journal des anthropologues 2004

2005
Louise Melvin

The relationship between yeast colonisation, symptoms and antifungal self-medication remains poorly understood. Previous studies have involved pregnant women or women using hormonal contraception, and many have been underpowered. This American cohort study aimed to determine the prevalence of yeast colonisation over a 1-year period in 18–30-year-old, sexually active, non-pregnant women. A total...

Journal: :Ecology letters 2011
Tarik C Gouhier Bruce A Menge Sally D Hacker

Although positive species interactions are ubiquitous in nature, theory has generally focused on the role of negative interactions to explain patterns of species diversity. Here, we incorporate recruitment facilitation, a positive interaction prevalent in marine and terrestrial systems, into a metacommunity framework to assess how the interplay between colonisation, competition and facilitation...

2003
MAYRA VERONICA HERÍAS

Bacterial attachment to surfaces or association to other bacterial species is an important subject for understanding the complex bacterial communities that populate the intestinal tract. Disruption of these ecologically stable communities can lead to harmful effects for the host, i.e. permitting the access of opportunistic or newly arrived pathogens to sterile areas of the body producing diseas...

Journal: :Molecular phylogenetics and evolution 2009
John O'Brien Carol Mariani Link Olson Amy L Russell Ludovic Say Anne D Yoder Tom J Hayden

We investigate the genetic relationships between purported island species of Pteropus fruit bat (Megachiroptera) from the western Indian Ocean islands using mitochondrial DNA sequencing in order to infer the pattern of colonisation of this biogeographic region. Most significantly, our genetic data questions the current taxonomic assignment based on morphology of many of the island species and s...

Journal: :The European respiratory journal 2015
Melanie Carevic Anurag Singh Nikolaus Rieber Olaf Eickmeier Matthias Griese Andreas Hector Dominik Hartl

Cystic fibrosis airways are frequently colonised with fungi. However, the interaction of these fungi with immune cells and the clinical relevance in cystic fibrosis lung disease are incompletely understood.We characterised granulocytes in airway fluids and peripheral blood from cystic fibrosis patients with and without fungal colonisation, non-cystic fibrosis disease controls and healthy contro...

Journal: :Ecology letters 2014
Megan K Nasto Silvia Alvarez-Clare Ylva Lekberg Benjamin W Sullivan Alan R Townsend Cory C Cleveland

Paradoxically, symbiotic dinitrogen (N2 ) fixers are abundant in nitrogen (N)-rich, phosphorus (P)-poor lowland tropical rain forests. One hypothesis to explain this pattern states that N2 fixers have an advantage in acquiring soil P by producing more N-rich enzymes (phosphatases) that mineralise organic P than non-N2 fixers. We assessed soil and root phosphatase activity between fixers and non...

2017
Louise van der Weyden Natasha A Karp Agnieszka Swiatkowska David J Adams Anneliese O Speak

The process of metastasis is a multi-stage cascade with prior studies suggesting that the colonisation of the secondary site is the rate limiting step. This process involves contributions from the tumour cells and also non-tumour intrinsic factors such as the stroma and the haematopoietic system. In this study, we present data from screening 810 genetically-modified mouse lines with the experim...

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