Abstract
Some nematodes eavesdrop on pheromonal signals to sniff out their elderly beetle hosts. This turns out to be yet another behaviour regulated by cGMP/PKG signalling.
|
PMID: 18522822
PDF is available here.
Abstract
The root extract of Heracleum candicans Wall. exhibited antagonistic activities against nematodes Bursaphelenchus xylophilus (Steiner et Buhrer) Nickle and Panagrellus redivivus (Linn.) Goodey. Through bioassay-guided fractionations, three coumarins were obtained from the extract of H. candicans and...
|
PMID: 18569707
PDF is available here.
Abstract
We show that Wnt signaling induces vulva formation in Pristionchus pacificus. A Ppa-bar-1/beta-catenin deletion is completely vulvaless. Several Wnt ligands and receptors act redundantly in vulva induction, and Ppa-egl-20/Wnt; Ppa-mom-2/Wnt; Ppa-lin-18/Ryk triple mutants are strongly vulvaless. Wnt...
|
PMID: 18207741
PDF is available here.
Abstract
We exposed three slug species (Deroceras reticulatum (Müller), Milax gagates (Draparnaud) and Limax pseudoflavus L.) to the parasitic nematode Phasmarhabditis hermaphrodita Schneider. P. hermaphrodita was able to cause mortality and feeding inhibition to both D. reticulatum and M. gagates but did n...
|
PMID: 17719604
PDF is available here.
Abstract
We examined the relationship between two gut-nematodes and their lizard hosts. One species, Physaloptera retusa, is a documented parasite in the stomach, whereas the relationship of the other species, Parapharyngodon riojensis (pinworms), to the host is putatively commensalistic or mutualistic. Base...
|
PMID: 17013599
PDF is available here.
Abstract
Inference of evolutionary relationships between nematodes is severely hampered by their conserved morphology, the high frequency of homoplasy, and the scarcity of phylum-wide molecular data. To study the origin of nematode radiation and to unravel the phylogenetic relationships between distantly rel...
|
PMID: 16790472
PDF is available here.
Abstract
A new species of parasitic nematode, Procamallanus (Procamallanus) pacificus n. sp., is described from the stomach of the Pacific shortfinned eel, Anguilla obscura (type host), and from the speckled longfin eel, Anguilla reinhardtii, from northern New Caledonia (Melanesia, South Pacific); from Angui...
|
PMID: 16629326
PDF is available here.
Abstract
Our aim in the present studies was to elucidate whether the presence of A. crassus in these eels alters their rapid physiological responses to an acute temperature increase, compared to the response of uninfected fish. Both infected and uninfected fish showed significant increases in plasma cortisol...
|
PMID: 15997820
PDF is available here.
Abstract
The response of infective third-stage larvae (L3) of three species of parasitic nematodes, Ancylostoma caninum, Strongyloides stercoralis, and Haemonchus contortus to carbon dioxide (CO(2)) at physiological concentrations was investigated. L3 of the skin-penetrating species, A. caninum and S. sterco...
|
PMID: 11880227
PDF is available here.
Abstract
We argue that gene function can change in different ways during the evolution of developmental processes. Genes can be recruited to serve completely new functions in a new regulatory linkage (co-option), they can change their molecular specificity while remaining in the original (homologous) develop...
|
PMID: 10322487
PDF is available here.
Abstract
The data support the value of standard fecal examinations in human immunodeficiency virus-infected patients, even in the absence of diarrhea, since these examinations easily can be performed, with low costs, and frequently disclose treatable conditions....
|
PMID: 10575149
PDF is available here.
Abstract
A divergent multi-domain cyclophilin from the filarial nematodes Brugia malayi, Onchocerca volvulus and Dirofilaria immitis has a highly conserved orthologue in the free-living nematodes Caenorhabditis elegans and C. briggsae. Cyclophilins are the receptors for the immunosuppressive and anti-parasit...
|
PMID: 9803414
PDF is available here.
Abstract
We show here the existence of a cell-survival signal acting on the vulval precursor cells in two nematodes, Turbatrix aceti and Halicephalobus sp. JB128. In C. elegans [3], as in many other nematode species [4] [5-7], ablation of the gonad causes all vulval precursor cells to adopt a default epiderm...
|
PMID: 9501068
PDF is available here.
Abstract
Circumstances that probably attended and influenced the adoption and development of the parasitic habit amongst the Nematoda are examined. Features that allowed early terrestrial nematodes to exploit discontinuous habitats such as decomposing organic matter, are considered to have been advantageous...
|
PMID: 7729972
PDF is available here.