The morphological variation of basidiomata of (Berk) Singer collected in southern Viet Nam was studied. Phylogenetic analyses comprising three gene loci indicated that these collections, although exhibiting widely varying morphologies, represented a single species with a population composed of genetically diverse, sexually compatible monokaryon parental strains. No correlation was found between any aspect of morphological variation and intraspecific phylogenetic patterns for the three gene loci studied. Primers were designed to amplify the intron-rich 5' region of the translation elongation factor 1-α gene () and amplicons cloned and sequenced to characterize the parental haplotypes for individual basidiomata. The presence of recombination over the entire morphological diversity seen was confirmed by split decomposition analysis and analysis of gene diversity indicated a lack of allelic fixation within local populations. On several occasions, more than two apparent parental haplotypes were characterized from individual basidiomata, indicating that at least some basidiomata are chimeric or otherwise develop from a multinucleate condition. The literature supporting our observations of the occurrence of multinucleate basidiomata is reviewed and possible mechanisms for this phenomenon are proposed.
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http://dx.doi.org/10.1080/21501203.2014.902402 | DOI Listing |
Int J Parasitol Parasites Wildl
December 2024
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninskiy Av., 119071 Moscow, Russia.
The family Hippoboscidae, commonly known as "louse flies," comprises pupiparous Diptera that are ectoparasites of birds and mammals, with significant impacts on their hosts and epidemiological importance. The louse fly fauna of Vietnam is relatively understudied compared to other countries in the Southeast Asia region. In this study, we describe a new species of the genus Speiser, 1905 (Diptera: Hippoboscidae), , collected from the lesser coucal (Gmelin, JF, 1788) in Cat Tien National Park, Vietnam.
View Article and Find Full Text PDFHelminthologia
September 2024
Plant Protection Research Institute, Duc Thang, Bac Tu Liem, Ha Noi, Viet Nam.
The brown marmorated stink bug (), a native of Asia, has become an invasive pest in North America and Europe. Given the severity of and the need for better and environmentally-friendly control methods for this pest, we evaluated the virulence four entomopathogenic nematode species (, and ) that occur naturally in soils in southern Việt Nam and compared them with that of a commercially available strain of . We report for the first time the pathogenicity of towards BMSB.
View Article and Find Full Text PDFBiodivers Data J
December 2024
Institute of Zoology, University of Cologne, Zülpicher Street 47b, 50674, Cologne, Germany Institute of Zoology, University of Cologne, Zülpicher Street 47b, 50674 Cologne Germany.
Background: The White-lipped Treefrog Yu, Hui, Hou, Wu, Rao & Yang, 2019 was previously confused with (Blyth, 1852). Records of from Yunnan (China), Vietnam and Thailand were recognised as a misidentification and this taxon was subsequently described as a new species, based on morphological and molecular evidence. This species is currently known from southern China, Thailand, Laos and Vietnam.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
International Centre for Informatics and Disaster Resilience, Loughborough University, UK.
Rivers are primary vectors of plastic debris to oceans, but sources, transport mechanisms, and fate of fluvial microplastics (<5 mm) remain poorly understood, impeding accurate predictions of microplastic flux, ecological risk and socio-economic impacts. We report on microplastic concentrations, characteristics and dynamics in the Mekong River, one of the world's largest and polluting rivers, in Cambodia and Vietnam. Sampling throughout the water column at multiple localities detected an average of 24 microplastics m (0.
View Article and Find Full Text PDFChemosphere
November 2024
Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam; Faculty of Environmental Science, University of Science, Ward 4, District 5, Ho Chi Minh City, Viet Nam.
This study investigated the characteristics of 23 PAHs in road dust from various areas in Ho Chi Minh City (HCMC), focusing on spatial distribution, pollution levels, human health risks, and source apportionment. PAH levels in urban samples (residential and industrial sites) ranged from 208 to 7665 (μg/kg), significantly higher than background levels (135 ± 42.2 μg/kg).
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