Browsing Research Output by Author "Du Preez, Louis"
Now showing items 1-19 of 19
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Alternative development in polystoma gallieni (platyhelminthes, monogenea) and life cycle evolution
Badets, Mathieu; Du Preez, Louis; Verneau, Olivier (ELSEVIER, 2013)Considering the addition of intermediate transmission steps during life cycle evolution, developmental plasticity, canalization forces and inherited parental effect must be invoked to explain new host colonization. Unf ... -
The challenge of conserving amphibian megadiversity in Madagascar
Andreone, Franco; Weldon, Ché; Du Preez, Louis; Mercurio, Vincenzo; Carpenter, Angun I.; Cox, Neil; Knox, David; Vieites, David R. (Public Library of Science (PLOS), 2008) -
Chitosan composite biomaterials for bone tissue engineering: a review
Fourie, Jaundrie; Du Preez, Louis; Taute, Francois; De Beer, Deon (Springer, 2020)The bone is a highly dynamic tissue with the remarkable ability to remodel and is in a continuous cycle of resorption and renewal as a result of internal mediators and external mechanical demands. Researchers have doubled ... -
Description and molecular characterisation of a new nematode species parasitic in the lungs of Strongylopus grayii (Smith) (Anura: Pyxicephalidae) in South Africa
Kuzmin, Yuriy; Svitin, Roman; Harnoster, Florence; Du Preez, Louis (Springer, 2020)Rhabdias delangei n. sp. (Nematoda: Rhabdiasidae) is described from the lungs of the clicking stream frog Strongylopus grayii (Smith) in the Western Cape Province of South Africa. The new species is characterised by the ... -
The dobule odyssey of Madagascan polystrome flatworms leads to new insights on the origins of their amphibian hosts
Verneau, Olivier; Laurent, Véronique; Raharivololoniaina, Liliane; Glaw, Frank; Vences, Miguel; Du Preez, Louis (Royal Society Publishing, 2009)Polystomatid flatworms are parasites of high host specificity, which mainly infect amphibian hosts. Only one polystome species has so far been recorded from Madagascar despite the high species richness and endemicity of ... -
Double blow: alien crayfish infected with invasive temnocephalan in South African waters
Du Preez, Louis; Smit, Nico (Academy of Science of South Africa (ASSAf), 2013)Trade in live, freshwater crayfish for ornamental markets, as well as for aquaculture, has grown rapidly and has become the major pathway for the introduction of non-indigenous crayfish species to several countries worldwide. ... -
Exceptional enlargement of the mitochondrial genome results from distinct causes in different rain frogs (Anura: Brevicipitidae: Breviceps)
Hemmi, Keitaro; Du Preez, Louis; Minter, Leslie; Kurabayashi, Atsushi; Kakehashi, Ryosuke (Hindawi, 2020)The mitochondrial (mt) genome of the bushveld rain frog (Breviceps adspersus, Brevicipitidae, Afrobatrachia) is the largest (28.8 kbp) among the vertebrates investigated to date. The major cause of genome size enlargement ... -
Indopolystoma n. gen. (Monogenea, Polystomatidae) with the description of three new species and reassignment of eight known Polystoma species from Asian frogs (Anura, Rhacophoridae)
Chaabane, Amira; Verneau, Olivier; Du Preez, Louis (EDP Open, 2019)The polystomes (Monogenea, Polystomatidae) radiated across semi-aquatic tetrapods including all three amphibian orders, freshwater turtles and the hippopotamus. Prior to this study, phylogenetic analyses revealed that the ... -
An integrative taxonomic revision and redefinition of Gephyromantis (Laurentomantis) malagasius based on archival DNA analysis reveals four new mantellid frog species from Madagascar
Vences, Miguel; Köhler, Jörn; Crottini, Angelica; Hofreiter, Michael; Hutter, Carl R.; Du Preez, Louis; Preick, Michaela; Rakotoarison, Andolalao; Rancilhac, Loïs; Raselimanana, Achille P.; Rosa, Gonçalo M.; Scherz, Mark D.; Glaw, Frank (Pensoft Publishers [Commercial Publisher], 2022)The subgenus Laurentomantis in the genus Gephyromantis contains some of the least known amphibian species of Madagascar. The six currently valid nominal species are rainforest frogs known from few individuals, hampering a ... -
Lessons from parasitic flatworms about evolution and historical biogeography of their vertebrate hosts
Du Preez, Louis; Verneau, Olivier; Badets, Mathieu (Elsevier Masson SAS, 2009) -
New records of Amphibiophilus spp. (Nematoda: Amphibiophilidae) parasitic in Strongylopus grayii (Smith) and Amietia delalandii (Duméril & Bibron) (Amphibia: Anura: Pyxicephalidae) in South Africa, with a description of Amphibiophilus bialatus n. sp.
Svitin, Roman; Kuzmin, Yuriy; Harnoster, Florence; Du Preez, Louis (Springer, 2020)Nematodes of the genus Amphibiophilus Skrjabin, 1916 are a small group of parasites restricted to pyxicephalid frogs in southern Africa. In the present study, the new species A. bialatus parasitising the clicking stream ... -
A new species of Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) from Blommersia domerguei (Guibé) (Amphibia: Mantellidae) in Madagascar
Kuzmin, Yuriy; Junker, Kerstin; Du Preez, Louis; Bain, Odile (Praha : Academia, 2013)Rhabdias blommersiae sp. n. (Nematoda: Rhabdiasidae) is described from the lungs of Domergue’s Madagascar frog, Blommersia domerguei (Guibé) (Amphibia: Mantellidae), in Madagascar. The new species differs from congeners ... -
Parasite host-switching from the invasive American red-eared slider, Trachemys scripta elegans, to the native Mediterranean pond turtle, Mauremys leprosa, in natural environments
Meyer, Leon; Du Preez, Louis; Verneau, Olivier; Bonneau, Elodie; Héritier, Laurent (REABIC, 2015)The red-eared slider turtle, Trachemys scripta elegans, is among the most over-exploited animals and is still exported annually from the USA all over the world. Once introduced into its new environment, feral populations ... -
Polystoma knoffi n. sp. and Polystoma travassosi n. sp. (Monogenea: Polystomatidae): naming museum-archived specimens from Brazil
Du Preez, Louis; Domingues, Marcus Vinicius (Springer, 2019)In 1978, Kohn and co-workers deposited several polystome (Monogenea) specimens infecting several Brazilian anurans [Trachycephalus mesophaeus (Hensel), T. nigromaculatus Tschudi and Leptodactylus pentadactylus (Laurenti)] ... -
Population-specific incidence of testicular ovarian follicles in Xenopus laevis from South Africa : A potential issue in endocrine testing
Kunene, Nisile; Hanner, Robert; Giesy, John P.; Solomon, Keith R.; Hosmer, Alan; Van der Kraak, Glen J.; Dubois, F; Hoffmann, A.; Zech, A.; Du Preez, Louis (Elsevier, 2009) -
Rapid Global Expansion of the Fungal Disease Chytridiomycosis into Declining and Healthy Amphibian Populations
Weldon, Ché; Du Preez, Louis; James, Timothy Y.; Litvintseva, Anastasia P.; Vilgalys, Rytas; Morgan, Jess A.T. (Public Library of Science (PLoS), 2009) -
The rate of release of Cry1Ab protein from Bt maize leaves into water. Short communication
Du Pisanie, Amy; Du Preez, Louis; Van den Berg, Johnnie; Pieters, Rialet (WRC, 2019)Transgenic Bt maize plants are genetically modified to contain genes of Bacillus thuringiensis that encode for δ-endotoxins (Cry1Ab protein) that have insecticidal properties. These endotoxins target certain lepidopteran ... -
A redescription of Polystoma africanum Szidat, 1932 (Monogenea: Polystomatidae)
Du Preez, Louis; Aisien, Martins S.O. (Magnolia Press, 2009)Polystoma africanum was originally described from a single specimen recovered from the common African toad, Amietophrynus regularis. The parasite has also been reported from the Angola river frog, Amietia angolensis, ... -
Reproduction, larval growth, ans reproductive development in African clawed frogs (Xenopus laevis) exposed to atrazine
Du Preez, Louis; Kunene, Nisile; Everson, Gideon J.; Ernest, Smith E.; Van der Kraak, Glen J. (Elsevier Science Limited, 2008)