Eleni Gentekaki

Eleni Gentekaki
Mae Fah Luang University | MFU · School of Science

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128
Publications
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Publications

Publications (128)
Article
The chlorophyte algae are a dominant group of photosynthetic eukaryotes. Although many are photoautotrophs, there are also mixotrophs, heterotrophs, and even parasites. The physical characteristics of green algae are also highly diverse, varying greatly in size, shape, and habitat. Given this morphological and trophic diversity, we postulated that...
Article
Blastocystis is the most common protist in the gut of humans and other animals having global distribution. Occasionally, this organism has also been reported in the environment. Transmission to humans occurs via the fecal-oral route, while water also comprises a transmission route. Blastocystis has been commonly found in rivers, lakes, and wells. N...
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The Global Action Fund for Fungal Infections (GAFFI) estimates that fungal diseases kill around 150 people each hour, and yet they are globally overlooked and neglected. Histoplasma and Talaromyces, which are associated with wildlife, cause systemic infections that are often lethal in patients with impaired cellular immunity. Dermatophytes that cau...
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A comprehensive account of fungal classification from freshwater habitats is outlined and discussed in the present review based on literature of biodiversity studies and recent morpho-phylogenetic analyses. A total of 3,870 freshwater fungal species are listed with additional details on the isolation source, habitat, geographical distribution, and...
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Background Birth delivery method and breastfeeding practices contribute to microbiota colonization. Other factors including diet and demographic factors structure the gut microbiome assembly and diversity through childhood development. The exploration of these factors, especially in Southeast Asian children, remains limited. Methods We investigate...
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Fungi are the major decomposers in terrestrial and aquatic ecosystems, playing essential roles in biogeochemical cycles and food webs. The Fungi kingdom encompasses a diverse array of taxa that often form intimate relationships with other organisms, including plants, insects, algae, cyanobacteria and even other fungi. Fungal parasites of insects ar...
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Bee gut microbial communities have been studied extensively and linked to honey bee biology in terms of stages of bee development and behavior. Associations of bee gut microbiota in health and disease have also been explored. A large number of studies have centered on the gut microbiome of Apis mellifera, with similar investigations lagging far beh...
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Cryptosporidium parvum is one of the major causes of neonatal calf diarrhoea resulting in reduced farm productivity and compromised animal welfare worldwide. Livestock act as a major reservoir of this parasite, which can be transmitted to humans directly and/or indirectly, posing a public health risk. Research reports on the prevalence of Cryptospo...
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During a survey of saprobic microfungi in Southwest China, a coelomycetous fungus was found on dead twigs of Jasminum nudiflorum in Kunming, Yunnan Province. Based on a detailed morphological characterization coupled with multi-locus phylogenetic analyses, the fungus was identified as a new species in the genus Dothidea. Phylogenetic analyses using...
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Blastocystis is an obligate anaerobic microbial eukaryote that frequently inhabits the gastrointestinal tract. Despite this prevalence, very little is known about the extent of its genetic diversity, pathogenicity, and interaction with the rest of the microbiome and its host. Although the organism is morphologically static, it has no less than 28 g...
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Blastocystis is the most commonly found eukaryote in the gut of humans and other animals. This protist is extremely heterogeneous genetically and is classified into 28 subtypes (STs) based on the small subunit ribosomal RNA (SSU rRNA) gene. Numerous studies exist on prevalence of the organism, which usually focus on either humans or animals or the...
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Mucor species are common fast-growing fungi found in soil. Two new species of Mucor and one new geographical record of M. nederlandicus were collected from northern Thailand and are described in this study. Evidence from morphophysiological data and phylogenetic analysis supports the introduction of the new taxa. Phylogenetic analysis based on the...
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The placement of the dothideomycetous family Teichosporaceae has been controversial. Recent phylogenetic investigations have used a taxonomic lumping approach with the Floricolaceae and its genera have been synonymized under the earlier family name, Teichosporaceae. Intergeneric relationships were therefore obscure and proper generic delimitation w...
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Stictidaceae comprises taxa with diverse lifestyles. Many species in this family are drought resistant and important for studying fungal adaptation and evolution. Stictidaceae comprises 32 genera, but many of them have been neglected for decades due to the lack of field collections and molecular data. In this study, we introduce a new species Fitzr...
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Relationships between ribotypic and phenotypic traits of protists across life-cycle stages remain largely unknown. Herein, we used single cells of two soil and two marine ciliate species to examine phenotypic and ribotypic traits and their relationships across lag, log, plateau, cystic stages and temperatures. We found that Colpoda inflata and C. s...
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The increasing number of new fungal species described from all over the world along with the use of genetics to define taxa, has dramatically changed the classification system of early-diverging fungi over the past several decades. The number of phyla established for non-Dikarya fungi has increased from 2 to 17. However, to date, both the classific...
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Introduction. Prototheca species are non-photosynthetic trebouxiophyte algae ubiquitously distributed in nature and can be found in sewage and soil. This microbial eukaryote causes human protothecosis in immunocompromised individuals. Thus, Prototheca presence in the stool of individuals without gastrointestinal symptoms has been reported only rare...
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This is the opening paper in the special issue of Fungal Diversity, which collates the data on defining species. Defining and recognizing species has long been a controversial issue. Since Darwin's proposed origin of species, over 30 species criteria have been brought forth and used to define species boundaries. In recent times, phylogenetic analys...
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This article presents the highlights of the 3rd International Blastocystis Conference, and latest research on Blastocystis...
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This article provides descriptions and illustrations of microfungi associated with the leaf litter of Celtis formosana, Ficus ampelas, F. septica, Macaranga tanarius and Morus australis collected from Taiwan. These host species are native to the island and Celtis formosana is an endemic tree species. The study revealed 95 species, consisting of two...
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This paper describes five sarcosomataceous samples collected from southwestern China and provides an updated two locus phylogeny of Sarcosomataceae. Two new species, Donadinia echinacea and Plectania sichuanensis, are described based on morphological and phylogenetic analyses. Donadinia echinacea is a dematiaceous hyphomycete with pleurogenous, gut...
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(1) Background: Blastocystis is a microbial eukaryote inhabiting the gastrointestinal tract of a broad range of animals including humans. Several studies have shown that the organism is associated with specific microbial profiles and bacterial taxa that have been deemed beneficial to intestinal and overall health. Nonetheless, these studies are foc...
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Colletotrichum is an important plant pathogenic genus that has undergone tremendous taxonomic changes. Species of Colletotrichum also occur as endophytes, saprobes and rarely entomopathogens. The current understanding of Colletotrichum taxonomy and application of various techniques in defining species within the genus is discussed in this paper. He...
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Leaf litter decomposition plays a vital role in the nutrient budget of forest ecosystems. Fungal communities colonising leaf litter are "key players" in decomposition and nutrient recycling, because of their ability to produce a wide range of extracellular enzymes that facilitate breakdown of leaf litter. Fungal colonization of decomposing leaf lit...
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Species of Absidia Tiegh. (Mucorales) are commonly isolated from soil, dead plant materials and dung. The genus is of interest in industrial and medical fields due to the presence of active compounds and secondary metabolites. Absidia species are typically characterized by an arcuate stolon with rhizoids, zygospores with appendaged suspensors and c...
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Abstract Objective This study aimed to investigate abundance of specific bacterial taxa in the saliva of 105 Thai adults with different BMI (lean, overweight, and obese) and T2DM subjects using qPCR targeting the 16S rRNA gene of various bacteria taxa. Design We employed qPCR targeting 16S rRNA genes to explore the bacterial profiles and abundance...
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Traditionally, fungal taxonomy was based on observable phenotypic characters. Recent advances have driven taxonomic conclusions towards DNA-based approaches and these techniques have corresponding pros and cons. Species concepts must therefore rely on incorporated approaches of genotypic, phenotypic and physiological characters and chemotaxonomy. E...
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To date, the majority of mycological studies are focused on Ascomycota and Basidiomycota. Research on basal fungi is rather limited with an obvious scarcity of data. Classification of basal fungi has witnessed ongoing changes in the last few decades. There have been numerous taxonomic revisions, establishment of new phyla and debates on the possibi...
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Pico-/nanoeukaryotes (P/NEs) comprise both primary producers and bacterial predators, playing important biogeochemical and ecological roles in the marine microbial loop. Besides the difference in size, these small sized fractions can be distinguished from microplankton by certain functional and ecological traits. Nevertheless, little information is...
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Acervus (Pyronemataceae, Pezizales) is a saprobic genus in Pezizomycetes, characterized by colored apothecia, subcylindrical to cylindrical asci and guttulate ascospores. We collected four Acervus samples from China and Thailand. Descriptions and illustrations are introduced for all fresh samples. One new record of A. globulosus from Thailand, one...
Preprint
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Phyllosticta species have worldwide distribution and are pathogens, endophytes, and saprobes. Taxa have also been isolated from leaf spots and black spots of fruits. Taxonomic identification of Phyllosticta species is challenging due to overlapping morphological traits and host associations. Herein, we have assembled a comprehensive dataset and rec...
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The website http://outlineoffungi.org, is launched to provide a continuous up-to-date classification of the kingdom Fungi (including fossil fungi) and fungus-like taxa. This is based on 1516 recent publications and on the outline of fungi and fungus-like taxa published recently (Mycosphere 11, 1060-1456, Doi: 10.5943/mycosphere/11/1/8). The website...
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A novel ascomycetous genus, Elongaticollum , occurring on leaf litter of Hedychium coronarium (Zingiberaceae) in Taiwan, is described and illustrated. Elongaticollum is characterized by dark brown to black, superficial, obpyriform, pycnidial conidiomata with a distinct elongate neck, and oval to oblong, hyaline, aseptate conidia. Phylogenetic analy...
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An investigation of aquatic fungi in Thailand resulted in the collection and isolation of a new species of Wicklowia (Wicklowiaceae) from submerged wood. Wicklowia phuketensis sp. nov. differs from known species in morphology and multigene phylogenetic analyses. Both W. submersa and W. phuketensis lack appendages at both ends, while W. aquatica has...
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This article provides an outline of the classification of the kingdom Fungi (including fossil fungi. i.e. dispersed spores, mycelia, sporophores, mycorrhizas). We treat 19 phyla of fungi. These are Aphelidiomycota, Ascomycota, Basidiobolomycota, Basidiomycota, Blastocladiomycota, Calcarisporiellomycota, Caulochytriomycota, Chytridiomycota, Entomoph...
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Blastocystis is a genetically diverse microbial eukaryote thriving in the gut of humans and other animals. While Blastocystis has been linked with gastrointestinal disorders, its pathogenicity remains controversial. Previous reports have suggested that one out of six humans could be carrying Blastocystis in their gut, while the numbers could be eve...
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Studies focusing on molecular mechanisms of cell cycles have been lagging in unicellular eukaryotes compared to other groups. Ciliates, a group of unicellular eukaryotes, have complex cell division cycles characterized by multiple events. During their vegetative cell cycle, ciliates undergo macronuclear amitosis, micronuclear mitosis, stomatogenesi...
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Maintaining and updating databases and checklists of genera of fungi is an essential task for most fungal research. Advances in molecular techniques in the last 20 years have greatly influenced the fungal taxonomy and classification. Consequently, it is important to have access to all existing data and for these data to be continuously updated with...
Article
Correct taxonomic identification of phytopathogens is essential as there is a need to gather precise stored information on different genera. It is important to scientifically document and records the diversity of fungal pathogens in order to collate information, as well as for utilizing the data efficiently. Fungal databases need to play an essenti...
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The ciliate genus Spirostomum comprises eight morphospecies, inhabiting diverse aquatic environments worldwide, where they can be used as water quality indicators. Although Spirostomum species are relatively easily identified using morphological methods, the previous nuclear rDNA-based phylogenies indicated several conflicts in morphospecies deline...
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Fungi are an understudied, biotechnologically valuable group of organisms. Due to the immense range of habitats that fungi inhabit, and the consequent need to compete against a diverse array of other fungi, bacteria, and animals, fungi have developed numerous survival mechanisms. The unique attributes of fungi thus herald great promise for their ap...
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This article is the tenth series of the Fungal Diversity Notes, where 114 taxa distributed in three phyla, ten classes, 30 orders and 53 families are described and illustrated. Taxa described in the present study include one new family (viz. Pseudoberkleasmiaceae in Dothideomycetes), five new genera (Caatingomyces, Cryptoschizotrema, Neoacladium, P...
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Phaeosphaeria ampeli is a new species collected from dead leaves of Ficus ampelas in Fanlu Township area, Dahu forest, Chiayi, Taiwan. Phaeosphaeria musae is a new record from dead leaves of Roystonea regia. Both species are described, illustrated and compared with similar species. Phaeosphaeria ampeli is distinguished from other Phaeosphaeria spec...
Article
The genus Entamoeba comprises mostly gut parasites and commensals of invertebrate and vertebrate animals including humans. Herein, we report a new species of Entamoeba isolated from the gut of Asian swamp eels (Monopterus albus) in northern Thailand. Morphologically, the trophozoite is elongated and has a single prominent pseudopodium with no clear...
Article
Mangrove forests are dynamic systems primarily confined to tropical and subtropical coastal regions. Mangroves are highly complex habitats sustaining a diverse array of terrestrial and aquatic fungal species. Endophytic fungi are widely distributed in mangrove ecosystems and are integral contributors to global biodiversity. Neopestalotiopsis specie...
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Species of Colletotrichum are commonly found in many plant hosts as pathogens, endophytes and occasionally saprobes. Twenty-two Colletotrichum strains were isolated from three Dendrobium species – D.cariniferum , D.catenatum and D.harveyanum , as well as three unidentified species. The taxa were identified using morphological characterisation and p...