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PloS one.

Periodical
Medicine
Science
Publisher:
Public Library of Science
Frequency: Monthly
Country: United States
Language: English
Author(s):
Public Library of Science.
Start Year:2006 -
Identifiers
ISSN:1932-6203 (Electronic)
1932-6203 (Linking)
NLM ID:101285081
(OCoLC):70662135
LCCN:2006214532
Adult-young ratio, a major factor regulating social behaviour of young: a horse study.
PloS one    March 18, 2009   Volume 4, Issue 3 e4888 doi: 10.1371/journal.pone.0004888
Bourjade M, de Boyer des Roches A, Hausberger M.Adults play an important role in regulating the social behaviour of young individuals. However, a few pioneer studies suggest that, more than the mere presence of adults, their proportions in social groups affect the social development of young. Here, we hypothesized that aggression rates and social cohesion were correlated to adult-young ratios. Our biological model was naturally-formed groups of Przewalski horses, Equus f. przewalskii, varying in composition. Results: We investigated the social interactions and spatial relationships of 12 one- and two-year-old Przewalski horses belonging to ...
Structural model of the Rev regulatory protein from equine infectious anemia virus.
PloS one    January 12, 2009   Volume 4, Issue 1 e4178 doi: 10.1371/journal.pone.0004178
Ihm Y, Sparks WO, Lee JH, Cao H, Carpenter S, Wang CZ, Ho KM, Dobbs D.Rev is an essential regulatory protein in the equine infectious anemia virus (EIAV) and other lentiviruses, including HIV-1. It binds incompletely spliced viral mRNAs and shuttles them from the nucleus to the cytoplasm, a critical prerequisite for the production of viral structural proteins and genomic RNA. Despite its important role in production of infectious virus, the development of antiviral therapies directed against Rev has been hampered by the lack of an experimentally-determined structure of the full length protein. We have used a combined computational and biochemical approach to gen...
Effective treatment of respiratory alphaherpesvirus infection using RNA interference.
PloS one    January 5, 2009   Volume 4, Issue 1 e4118 doi: 10.1371/journal.pone.0004118
Fulton A, Peters ST, Perkins GA, Jarosinski KW, Damiani A, Brosnahan M, Buckles EL, Osterrieder N, Van de Walle GR.Equine herpesvirus type 1 (EHV-1), a member of the Alphaherpesvirinae, is spread via nasal secretions and causes respiratory disease, neurological disorders and abortions. The virus is a significant equine pathogen, but current EHV-1 vaccines are only partially protective and effective metaphylactic and therapeutic agents are not available. Small interfering RNAs (siRNA's), delivered intranasally, could prove a valuable alternative for infection control. siRNA's against two essential EHV-1 genes, encoding the viral helicase (Ori) and glycoprotein B, were evaluated for their potential to decrea...
The absolute threshold of colour vision in the horse.
PloS one    November 12, 2008   Volume 3, Issue 11 e3711 doi: 10.1371/journal.pone.0003711
Roth LS, Balkenius A, Kelber A.Arrhythmic mammals are active both during day and night if they are allowed. The arrhythmic horses are in possession of one of the largest terrestrial animal eyes and the purpose of this study is to reveal whether their eye is sensitive enough to see colours at night. During the day horses are known to have dichromatic colour vision. To disclose whether they can discriminate colours in dim light a behavioural dual choice experiment was performed. We started the training and testing at daylight intensities and the horses continued to choose correctly at a high frequency down to light intensitie...
Habitat-specific population growth of a farmland bird.
PloS one    August 20, 2008   Volume 3, Issue 8 e3006 doi: 10.1371/journal.pone.0003006
Arlt D, Forslund P, Jeppsson T, Pärt T.To assess population persistence of species living in heterogeneous landscapes, the effects of habitat on reproduction and survival have to be investigated. Results: We used a matrix population model to estimate habitat-specific population growth rates for a population of northern wheatears Oenanthe oenanthe breeding in farmland consisting of a mosaic of distinct habitat (land use) types. Based on extensive long-term data on reproduction and survival, habitats characterised by tall field layers (spring- and autumn-sown crop fields, ungrazed grasslands) displayed negative stochastic population ...
Characterization of clinically-attenuated Burkholderia mallei by whole genome sequencing: candidate strain for exclusion from Select Agent lists.
PloS one    April 30, 2008   Volume 3, Issue 4 e2058 doi: 10.1371/journal.pone.0002058
Schutzer SE, Schlater LR, Ronning CM, DeShazer D, Luft BJ, Dunn JJ, Ravel J, Fraser-Liggett CM, Nierman WC.Burkholderia mallei is an understudied biothreat agent responsible for glanders which can be lethal in humans and animals. Research with this pathogen has been hampered in part by constraints of Select Agent regulations for safety reasons. Whole genomic sequencing (WGS) is an apt approach to characterize newly discovered or poorly understood microbial pathogens. Results: We performed WGS on a strain of B. mallei, SAVP1, previously pathogenic, that was experimentally infected in 6 equids (4 ponies, 1 mule, 1 donkey), natural hosts, for purposes of producing antibodies. Multiple high inocula wer...
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