Search results for "polymorph"

Interspecific differences in carotenoid content and sensitivity to UVB radiation in three acanthocephalan parasites exploiting a common intermediate …

2011

9 pages; International audience; Few endoparasite species are pigmented. Acanthocephalans are an exception however, with several species being characterised by yellow to orange colouration both at the immature (cystacanth) and adult stages. However, the functional and adaptive significance of carotenoid-based colourations in acanthocephalans remains unclear. One possibility is that the carotenoid content of acanthocephalan cystacanths acts as a protective device against ultra-violet radiation (UVR) passing through the translucent cuticle of their crustacean hosts. Indeed, acanthocephalans often bring about behavioural changes in their aquatic intermediate hosts that can increase their expos…

Genetic polymorphism and taxonomic infrastructure of the Pleurotus eryngii species-complex as determined by RAPD analysis, isozyme profiles and ecomo…

2001

The Pleurotus eryngii species-complex includes populations of choice edible mushrooms, growing in the greater Mediterranean area in close association with different genera of plants of the family Apiaceae. Their distinct host-specialization served as the principal criterion for the discrimination of several taxa; however, the genetic relationships among the various P. eryngii ecotypes remain ambiguous. In the present study, 46 Pleurotus strains with a wide range of geographical origins were isolated from Eryngium spp., Ferula communis, Cachrys ferulacea, Thapsia garganica and Elaeoselinum asclepium subsp. asclepium, and were subjected to isozyme and random amplified polymorphic DNA-PCR (RAP…

1986

Influence des groupes mesogenes sur le polymorphisme de polyphenylene-1,4 terephtalate et differents polyesters a chaine principale semi-flexible

C3 reference typing report and nomenclature revision.

1990

As the result of reference typing, two 'new' variants could be provisionally accepted (C3F045 and C3F015). The list of variants of the C3 polymorphism includes now 2 common and 29 rare variants.

Conflicting molecular phylogenies of European long-eared bats (Plecotus) can be explained by cryptic diversity

2002

Abstract Conflicting phylogenetic signals of two data sets that analyse different portions of the same molecule are unexpected and require an explanation. In the present paper we test whether (i) differential evolution of two mitochondrial genes or (ii) cryptic diversity can better explain conflicting results of two recently published molecular phylogenies on the same set of species of long-eared bats (genus Plecotus). We sequenced 1714 bp of three mitochondrial regions (16S, ND1, and D-loop) of 35 Plecotus populations from 10 European countries. A likelihood ratio test revealed congruent phylogenetic signals of the three data partitions. Our phylogenetic analyses demonstrated that the exis…

A multiplex polymerase chain reaction protocol for the simultaneous analysis of the glutathione S-transferase GSTM1 and GSTT1 polymorphisms.

1996

The role of prothrombotic variants in acute ischemic stroke

2013

Identification of two new alleles at k-casein (CSN3) gene in Girgetana goat breed

2013

In the milk of ruminants, more than 95% of proteins are synthesized by six structural genes, four caseins and two whey proteins. The κ-casein fraction plays an important role in the formation, stabilization and aggregation on casein micelles and thus affects technological and nutritional properties of milk. Goat κ-casein (CSN3) gene comprises five exons with the mRNA coding region for mature protein spanning from exon 3 to exon 4. The κ-casein locus has been widely investigated and several genetic variants have been found in different goat breeds. At protein level, AIEF and BIEF groups corresponding to isoelectric point 5.53 and 5.78, respectively, have been identified. In this study, exon …

Polymorphonuclear leukocyte membrane fluidity and cytosolic Ca2+ content in young adults with acute myocardial infarction. Evaluation at the initial …

2004

Our aim was to examine two aspects of polymorphonuclear leukocyte (PMN) rheology (membrane fluidity and cytosolic Ca2+ content), at baseline and after in vitro activation, in a group of young adults with acute myocardial infarction (AMI) at the initial stage and after 12 months. We enrolled 21 AMI subjects aged < or = 45 years (mean age 41.1 +/- 3.5 years) and evaluated PMN membrane fluidity, labelling intact PMN cells with the fluorescent probe 1,4-(trimethylamino)-phenyl-4-phenylhexatriene and the PMN cytosolic Ca2+ content marking PMN cells with the fluorescent probe Fura 2-AM, at baseline and after in vitro activation with 4-phorbol 12-myristate 13-acetate (PMA) and N-formyl-methionyl-l…

Granulocytenfunktionsdefekte bei granulomat�ser muco-cutaner candidiasis

1975

Es wird uber einen 12jahrigen Jungen mit einer rezidivierenden mucocutanen Candidiasis berichtet, der an einer Cryptococcose verstarb. Bei diesem Kind wurden Defekte der unspezifischen Immunitat in Form eines Chemotaxis- und Phagocytosedefizits der polymorphkernigen Neutrophilen nachgewiesen, wahrend Immunglobuline und Komplementfaktoren sowie insbesondere die lymphocytenvermittelten Reaktionen im Normbereich lagen. Die Heterogenitat hinsichtlich der Atiopathogenese der granulomatosen muco-cutanen Candidiasis machen auch Funktionsprufungen der Granulocytenfunktionen erforderlich, zumal solche Defekte inzwischen mehrfach beobachtet wurden.