Person: Haelewaters, Danny
Loading...
Email Address
AA Acceptance Date
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
Haelewaters
First Name
Danny
Name
Haelewaters, Danny
12 results
Search Results
Now showing 1 - 10 of 12
Publication Fireworks under the microscope: a spectacular new species of Zodiomyces from the Thaxter collection(Informa UK Limited, 2016) Rossi, Walter; Haelewaters, Danny; Pfister, DonaldA new species of Zodiomyces (Ascomycota, Laboulbeniales) is described, Z. rhizophorus, parasitic on a hydrophilid beetle (Coleoptera, Hydrophilidae) from Trinidad. This species was discovered during the examination of the slides of Laboulbeniales made by Roland Thaxter. It is characterized by numerous long, slender, multicellular and multiseriate outgrowths at the base of the receptacle. Thaxter's outstanding illustrations have set a standard in the field of mycology; we provide a review of the methods he employed in the preparation of these illustrations.Publication Parasites of parasites of bats: Laboulbeniales (Fungi: Ascomycota) on bat flies (Diptera: Nycteribiidae) in central Europe(BioMed Central, 2017) Haelewaters, Danny; Pfliegler, Walter P.; Szentiványi, Tamara; Földvári, Mihály; Sándor, Attila D.; Barti, Levente; Camacho, Jasmin; Gort, Gerrit; Estók, Péter; Hiller, Thomas; Dick, Carl W.; Pfister, DonaldBackground: Bat flies (Streblidae and Nycteribiidae) are among the most specialized families of the order Diptera. Members of these two related families have an obligate ectoparasitic lifestyle on bats, and they are known disease vectors for their hosts. However, bat flies have their own ectoparasites: fungi of the order Laboulbeniales. In Europe, members of the Nycteribiidae are parasitized by four species belonging to the genus Arthrorhynchus. We carried out a systematic survey of the distribution and fungus-bat fly associations of the genus in central Europe (Hungary, Romania). Results: We encountered the bat fly Nycteribia pedicularia and the fungus Arthrorhynchus eucampsipodae as new country records for Hungary. The following bat-bat fly associations are for the first time reported: Nycteribia kolenatii on Miniopterus schreibersii, Myotis blythii, Myotis capaccinii and Rhinolophus ferrumequinum; Penicillidia conspicua on Myotis daubentonii; and Phthiridium biarticulatum on Myotis capaccinii. Laboulbeniales infections were found on 45 of 1,494 screened bat flies (3.0%). We report two fungal species: Arthrorhynchus eucampsipodae on Nycteribia schmidlii, and A. nycteribiae on N. schmidlii, Penicillidia conspicua, and P. dufourii. Penicillidia conspicua was infected with Laboulbeniales most frequently (25%, n = 152), followed by N. schmidlii (3.1%, n = 159) and P. dufourii (2.0%, n = 102). Laboulbeniales seem to prefer female bat fly hosts to males. We think this might be due to a combination of factors: female bat flies have a longer life span, while during pregnancy female bat flies are significantly larger than males and accumulate an excess of fat reserves. Finally, ribosomal DNA sequences for A. nycteribiae are presented. Conclusions: We screened ectoparasitic bat flies from Hungary and Romania for the presence of ectoparasitic Laboulbeniales fungi. Arthrorhynchus eucampsipodae and A. nycteribiae were found on three species of bat flies. This study extends geographical and host ranges of both bat flies and Laboulbeniales fungi. The sequence data generated in this work contribute to molecular phylogenetic studies of the order Laboulbeniales. Our survey shows a complex network of bats, bat flies and Laboulbeniales fungi, of which the hyperparasitic fungi are rare and species-poor. Their host insects, on the other hand, are relatively abundant and diverse. Electronic supplementary material The online version of this article (doi:10.1186/s13071-017-2022-y) contains supplementary material, which is available to authorized users.Publication Bringing Laboulbeniales into the 21st century: enhanced techniques for extraction and PCR amplification of DNA from minute ectoparasitic fungi(International Mycological Association, 2015) Haelewaters, Danny; Gorczak, Michał; Pfliegler, Walter P.; Tartally, András; Tischer, Marta; Wrzosek, Marta; Pfister, DonaldLaboulbeniales is one of the most peculiar orders of Ascomycota. These fungi are characterized by an ectoparasitic life-style on arthropods, determinate growth, lack of an asexual stage, high species richness, and intractability to culture. The order Laboulbeniales, sister to Pyxidiophorales, has only recently been assigned a separate class, the Laboulbeniomycetes, based on very few ribosomal DNA sequences. So far, DNA isolations and PCR amplifications have proven difficult. Here, we provide details of isolation techniques and the application of commercially available kits that enable efficient and reliable genetic analyses of these fungi. We provide 43 newly generated Laboulbeniales ribosomal DNA sequences, among which are the first published sequences for species in the genera Gloeandromyces, Herpomyces, Laboulbenia, Monoicomyces, and Polyandromyces. DNA extractions were possible using from 1 to 30 thalli from hosts preserved in ethanol (70–100 %). In two cases, we successfully isolated DNA from thalli on dried insect collections. Laboulbeniales molecular systematics could be substantially enhanced through these improved methods by allowing more complete sampling of both taxa and gene regions.Publication The first record of Laboulbeniales (Fungi, Ascomycota) on Ants (Hymenoptera, Formicidae) in The Netherlands(Ascomycete.org, 2012) Haelewaters, DannyLaboulbeniales (Fungi, Ascomycetes) are obligate ectoparasites of arthropods, mostly true insects. 80% of all Laboulbeniales parasitize beetles, 10% flies. Also other groups of insects are known to support Laboulbeniales infections. This paper gives data and microscopic illustrations on Rickia wasmannii from an ant, a Myrmica scabrinodis worker, collected in The Netherlands. It appears to be the first Dutch record of a myrmecophilous fungus. Information on specificity and geographical distribution is given.)Publication Studies of Laboulbeniales on Myrmica ants (III): myrmecophilous arthropods as alternative hosts of Rickia wasmannii(EDP Sciences, 2016) Pfliegler, Walter P.; Báthori, Ferenc; Haelewaters, Danny; Tartally, AndrásMyrmecophilous arthropods and their manifold relations to host ants are interesting from an evolutionary perspective. Rickia wasmannii is an ectoparasitic fungus belonging to the Laboulbeniales order. Here, we show that inquiline mites can become infected by R. wasmannii, which was thought to be restricted to the genus Myrmica (Hymenoptera: Formicidae). This is the first report of R. wasmannii from an alternative host in another subphylum (Chelicerata). We also found immature fruiting bodies on a larva of Microdon myrmicae (Diptera: Syrphidae), which represents the first report of any Rickia species on flies. This fungus is capable of infecting alternative, unrelated host species as they co-occur in the ant nest “microhabitat”. These observations provide direct evidence for ecological specificity in Laboulbeniales. The presence of R. wasmannii on inquilines in Myrmica ant nests suggests that the parasite may have adapted to the ant nest environment and is less dependent on acquiring specific nutrients from the hosts. However, the alternative cannot be excluded; these infections might also represent chance events if the fungus is incapable of fulfilling its life cycle.Publication Studies of Laboulbeniales (Fungi, Ascomycota) on Myrmica ants: Rickia wasmannii in the Netherlands(Pensoft Publishers, 2015) Haelewaters, Danny; Boer, Peter; Noordijk, JinzeAn important group of fungal insect parasites is the Laboulbeniales (Ascomycota). These are microscopic in size and live attached to the cuticle of their arthropod hosts. Rickia wasmannii is a common European species limited to the ant genus Myrmica (Hymenoptera, Formicidae). We present new records of R. wasmannii in the Netherlands on three host species: Myrmica ruginodis, M. sabuleti, and M. scabrinodis. Our data show a mass infection of M. sabuleti by R. wasmannii. The average parasite prevalence is 38% (n = 3,876). The prevalence was much lower on the other Myrmica species. So far, R. wasmannii infections have been found only on Myrmica species in the rubra-group and the scabrinodis-group. We provide possible explanations for this observation. To date, Rickia wasmannii is known on nine Myrmica species in sixteen European countries; an overview is included in tabulated form.Publication On carrion-associated beetles in the Sonian Forest (Belgium): observations on five deer carcasses(2015) Haelewaters, Danny; Vanpoucke, Sofie; Raes, Dirk; Krawczynski, ReneCarrion is an important element of temperate ecosystems, although far less studied than dead and decaying wood. In order to avoid competition, insects need to detect and colonize ephemeral resources like carrion quickly. The knowledge of this colonization is an important tool in forensic entomology. Hence, species identification is a most crucial factor. Among insects, most studies have concentrated on flies (Diptera), whereas beetles (Coleoptera) were neglected for a long time. Beetles, however, have forensic applications – they are part of the entomofaunal colonization of a carcass – and therefore recently more extensive research on forensic application of beetle data has been done. Beetle families with significance to forensic entomology are Silphidae, Staphylinidae, Histeridae, Trogidae, Dermestidae, Cleridae, Nitidulidae and Carabidae. This study documents the presence of beetles associated with decaying carcasses of deer in the Sonian Forest, Belgium. A total of 271 specimens of Coleoptera belonging to twenty-five species in six families was recorded. The number of species and specimens increased from the fresh stage to the bloated stage and active decay, to drop back down at the dry/remains stage. A discussion is given about some interesting collected species and families.Publication Laboulbenia slackensis and L. littoralis sp. nov. (Ascomycota, Laboulbeniales), two sibling species as a result of ecological speciation(Mycological Society of America, 2014) De Kesel, A.; Haelewaters, DannyLaboulbenia littoralis is described from the halobiont Cafius xantholoma (Coleoptera, Staphylinidae); it previously was misidentified and not properly documented. Morphologically the new species belongs to a group of carabidicolous taxa similar to Laboulbenia pedicellata and especially Laboulbenia slackensis. It is generally accepted that the specificity of Laboulbeniales is based on their need for substances from the host. In this relatively strict context, shifts between unrelated hosts are difficult to explain. We present morphological and ecological evidence supporting the hypothesis that these fungi are capable of shifting between unrelated hosts as long as they share the same habitat. Adaptation to a particular environment, combined with a reduced dependence from specific nutrients of the host, explains the proposed interfamilial host shift.Publication Laboulbeniales (Ascomycota) of the Boston Harbor Islands I: Species Parasitizing Coccinellidae and Staphylinidae, with Comments on Typification(Humboldt Field Research Institute, 2015) Haelewaters, Danny; Zhao, Serena Y.; Kesel, André De; Handlin, Rebecca E.; Royer, Isabel R.; Farrell, Brian; Pfister, DonaldThis paper, based on a recent comprehensive sampling of insects, is the first report of Laboulbeniales from the New England region since the 1930s. We present 7 new records of laboulbenialean parasites on Staphylinidae (rove beetles) and Coccinellidae (lady beetles) from the Boston Harbor Islands National Recreation Area. These are Clonophoromyces nipponicus Terada & I.I. Tav., Hesperomyces virescens Thaxt., Ilyomyces cf. mairei F. Picard, Laboulbenia philonthi Thaxt., Peyritschiella protea Thaxt., Stichomyces conosomatis Thaxt., and Teratomyces actobii Thaxt. One of these parasite species, C. nipponicus, has not been found previously outside of its type locality in Japan. Examination of Roland Thaxter's 1891–1932 slides led to the designation of lectotypes for L. philonthi, P. protea, S. conosomatis, and T. actobii. The following synonymy is established: Teratomyces brevicaulis Thaxt. = T. actobii. In addition, we discovered new localities for H. virescens (from Canada, Cuba, Guatemala, and Japan) and L. philonthi (from Canada, Grenada, Panama, Trinidad, and Venezuela).Publication Erratum to: Hesperomyces virescens (Fungi, Ascomycota, Laboulbeniales) attacking Harmonia axyridis (Coleoptera, Coccinellidae) in its native range(Springer Science + Business Media, 2014) Haelewaters, Danny; Comont, Richard F.; Zhao, Serena; Pfister, DonaldThis study intended to find data on obligate ectoparasitic Laboulbeniales (Fungi, Ascomycota) on Chinese Harmonia axyridis (Coleoptera, Coccinellidae). After having screened over four thousand dried specimens of H. axyridis and close relatives, we present the first (historical) record of Chinese H. axyridis infected with Hesperomyces virescens. We suggest that H. virescens is a historically globally distributed species and hypothesize that (native) infection was lost when H. axyridis was introduced in North America.