Rungtiwa Phookamsak

• Doctor of Philosophy
• Research Associate at Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, Chin

Endophytic fungi are a well-known fascinating host-associated fungal group that can enhance plant growth and fitness by producing various bioactive secondary metabolites. They are an excellent source of industrial enzymes for potential secondary metabolite synthesis, which is useful in green agriculture, biotechnology, and pharmaceuticals. Itea is...

During investigations of freshwater fungi in Hunan and Yunnan provinces, China, Chaetopsina yunnanensis sp. nov. (Nectriaceae), Parafuscosporella hunanensis sp. nov. (Fuscosporellaceae), and Pleurotheciella yunnanensis sp. nov. (Pleurotheciaceae) were discovered on submerged decaying wood and branches. Based on phylogenetic analyses, C. yunnanensis...

Torula aquilariae sp. nov. was isolated from a fallen fruit pod of Aquilaria sinensis in Yunnan Province, China. Preliminary identification based on morphological characteristics, the new species is typical of Torula forming effuse, dark brown to black colonies, with monoblastic or polyblastic, doliiform to ellipsoid or cupulate conidiogenous cells...

During our ongoing studies of microfungi associated with avocado trees in Yunnan Province of China, the samples were collected from Menglian Dai, Lahu, and Va Autonomous County, Pu'er Prefecture. Two new strains were isolated from soil samples in the avocado plantation and roots of avocado trees (Persea americana), respectively. Through morphologic...

During the investigation of ascomycetes on Poaceae in Yunnan Province, China, a fungus was collected from dead bamboo culms in a terrestrial habitat in the Ailaoshan subtropical evergreen broad-leaved forest. Based on morphological characterization and phylogenetic analyses, this fungus was introduced as Oxydothis ailaoshanensis sp. nov. Maximum li...

The global diversity of fungi has been estimated between 2 to 11 million species, of which only about 155 000 have been named. Most fungi are invisible to the unaided eye, but they represent a major component of biodiversity on our planet, and play essential ecological roles, supporting life as we know it. Although approximately 20 000 fungal gener...

This article presents the results of an ongoing inventory of Ascomycota in Yunnan, China, carried out as part of the research project series “Exploring ascomycete diversity in Yunnan”. From over 100 samples collected from diverse host substrates, microfungi have been isolated, identified and are currently being documented. The primary objective of...

Freshwater fungi are highly diverse in China and frequently reported from submerged wood, freshwater insects, herbaceous substrates, sediments, leaves, foams, and living plants. In this study, we investigated two freshwater species that were collected from Yunnan and Guizhou provinces in China. Detailed morphological analysis complemented by multi-...

During our ongoing study of ascomycetes in Yunnan Province of China, a saprobic fungus was collected on a dead stem of Bidens pilosa (black-jack) in Yunnan Province, China. Preliminary identification based on the LSU, SSU, and ITS nucleotide BLAST searches demonstrated that the new isolate is related to Praeclarispora artemisiae and Phragmogibbera...

This article is the 15th contribution in the Fungal Diversity Notes series, wherein 115 taxa from three phyla, nine classes, 28 orders, 48 families, and 64 genera are treated. Fungal taxa described and illustrated in the present study include a new family, five new genera, 61 new species, five new combinations, one synonym, one new variety and 31 r...

Fungal diversity notes 1611–1716

Yunnan, located in southwestern China, is known for its high fungal diversity, and many of which are endemic to the region. As part of our ongoing studies on fungi in Yunnan, we introduce two new genera in Phaeothecoidiellaceae (Mycosphaerellales), to accommodate one Repetophragma-like and another Stomiopeltis-like taxa. Pseudorepetophragma gen. no...

During a survey of micro-fungi in Chiang Mai Province, Thailand, fruiting bodies of Rhytidhysteron growing on dead twigs of several host plants were collected. Phylogenetic analyses of a combined LSU, ITS, SSU, and TEF1 sequence data along with morphological characteristics, were used to identify the new collections as R. bruguierae, R. neorufulum...

In the present study, a new species, Scolecohyalosporium thailandense, is introduced based on morphological and molecular approaches. The species was found as a saprobe occurring on Imperata sp. (Poaceae) in terrestrial habitats in Chiang Rai Province, Thailand. This species is characterized by solitary, semi-immersed to erumpent, subglobose to amp...

Alternaria, a genus of ascomycetes, comprises major plant pathogens, saprobes and are common allergens to humans. There are more than 360 accepted species in the genus, which are currently divided into 29 sections. This paper aims to elaborate the taxonomy of Alternaria with multi-locus phylogenetic trees derived by analyses of a concatenated DNA s...

Phaeocytostroma species (Diaporthaceae, Diaporthales, Sordariomycetes) are mainly associated with grasses (Poaceae) and are considered important pathogens of maize and sugarcane. In the present study, a phaeocytostroma-like taxon was collected from bamboo culms in Yunnan, China and characterized using morphological and multigene phylogenetic analys...

Taxonomic studies of bambusicolous fungi in China and Thailand have resulted in the collection of three fascinating saprobic coelomycetes strains. Morphology coupled with combined gene analysis of ITS, LSU, TUB2, and TEF1-α DNA sequence data showed that they belong to the genus Apiospora, family Apiosporaceae. A new species from Thailand, Apiospora...

The genus Alternaria is comprised of well-known plant pathogens causing various important diseases in plants, as well as being common allergens in animals and humans. Species of Alternaria can be found as saprobes associated with various dead plant materials. This research aims to enhance the taxonomy of saprobic species in the genus Alternaria fou...

During an investigation of fungal saprobes of Yunnan Province, China, a species in Tetraplosphaeriaceae was collected from decaying stems of Saccharum arundinaceum (Poaceae). The taxon has oblong, dark brown to black, four-columned conidia with mostly three long apical appendages. Phylogenetic analyses of combined LSU, SSU, ITS, β-tubulin and tef1-...

While conducting a survey of bambusicolous fungi in northern Thailand and southwestern China, several saprobic fungi were collected from dead branches, culms and twigs of bamboos, which were preliminarily identified as species belonging to Pleosporales (Dothideomycetes) based on a morphological approach. Multigene phylogenetic analyses based on ITS...

During a survey of ascomycetes in Yunnan in the dry season (April 2021), an ascomycete was found on para grass [Brachiaria mutica (Forssk.) Stapf] submerged in a freshwater stream in Mengla County, Xishuangbanna Dai Autonomous Prefecture, Yunnan Province, China. Multi-locus phylogenetic analyses of combined ITS, LSU, SSU, tef1-α and rpb2 gene regio...

As a result of an ongoing research survey of microfungi in Yunnan, China, several saprobic ascomycetes were collected from various host substrates. Preliminary morphological analyses identified a few of these taxa as Periconia species. We obtained DNA sequence data of the Periconia species from pure cultures and investigated their phylogenetic affi...

Sexual reproduction is the basic way to form high genetic diversity and it is beneficial in evolution and speciation of fungi. The global diversity of teleomorphic species in Ascomycota has not been estimated. This paper estimates the species number for sexual ascomycetes based on five different estimation approaches, viz. by numbers of described f...

Sexual reproduction is the basic way to form high genetic diversity and it is beneficial in evolution and speciation of fungi. The global diversity of teleomorphic species in Ascomycota has not been estimated. This paper estimates the species number for sexual ascomycetes based on five different estimation approaches, viz. by numbers of described f...

Pleosporales is the largest fungal order with a worldwide distribution in terrestrial and aquatic environments. During investigations of saprobic fungi associated with mango (Mangifera indica) in Baoshan and Honghe, Yunnan, China, fungal taxa belonging to pleosporales were collected. Morphological examinations and phylogenetic analyses of ITS, LSU,...

Parabambusicolaceae is a well-studied family in Massarineae, Pleosporales, comprising nine genera and approximately 16 species. The family was introduced to accommodate saprobic bambusicola-like species in both freshwater and terrestrial environments that mostly occur on bamboos and grasses but are also found on different host substrates. In the pr...

This article is the 13th contribution in the Fungal Diversity Notes series, wherein 125 taxa from four phyla, ten classes, 31 orders, 69 families, 92 genera and three genera incertae sedis are treated, demonstrating worldwide and geographic distribution. Fungal taxa described and illustrated in the present study include three new genera, 69 new spe...

During our ongoing studies of bambusicolous fungi in southwest China and Thailand, three saprobic pleosporalean taxa were discovered on bamboos in Yunnan Province of China. Occultibambusa hongheensis and Seriascoma bambusae spp. nov. are introduced based on morphological characteristics coupled with multi-locus phylogenetic analyses of combined LSU...

Ophioceras is accommodated in the monotypic family Ophioceraceae (Magnaporthales, Sordariomycetes), and the genus is delimited based on molecular data. During an ongoing survey of bambusicolous fungi in southwest China, we collected a submerged decaying branch of bamboo from Sichuan Province, China and an Ophioceras species occurring on this substr...

Background: During taxonomic and phylogenetic studies of fungi on pteridophytes in Thailand, Monilochaetes pteridophytophila sp. nov. was collected from the frond stalks of a tree fern (Alsophila costularis, Cyatheaceae). The new species is introduced, based on evidence from morphology and phylogenetic analyses of a concatenated dataset of LSU, IT...

Camarosporidiella specimens collected from woody plants in central Italy, eastern Ukraine, and southeastern Russia were identified based on morphology and multi-gene (LSU, SSU, ITS, and TEF) sequence analyses. Camarosporidiella caraganicola on Amorpha fruticosa , C. celtidis on Ulmus pumila , C. elaeagnicola on Cytisus ruthenicus are described with...

Amphibambusa hongheensis sp. nov. was collected from dead bamboo culms in Honghe County of Yunnan Province, China. The novel species is introduced based on the morpho-molecular approach. Morphologically, A. hongheensis fits well with Amphibambusa and is characterized by immersed, globose to subglobose ascomata, with protruding carbonaceous papilla,...

Immotthia is a poorly known genus, and currently, no DNA sequence data are available to ascertain its proper phylogenetic placement and evolutionary relationships with other bitunicate fungi. To date, there are only two species accepted in the genus. During our ongoing research study of bambusicolous fungi in southwest China and Thailand, a fungus...

Our studies on lignicolous aquatic fungi in Thailand, Sweden, and the UK resulted in the collection of three new Halobyssothecium species (H. bambusicola, H. phragmitis, H. versicolor) assigned to Lentitheciaceae (Pleosporales, Dothideomycetes). Multi-loci phylogenetic analyses of the combined large subunit, small subunit, internal transcribed spac...

Collections of microfungi on bamboo and grasses in Thailand revealed an interesting species morphologically resembling Lophiostoma, but which can be distinguished from the latter based on multi-locus phylogeny. In this paper, a new genus, Sublophiostoma is introduced to accommodate the taxon, S. thailandica sp. nov. Phylogenetic analyses using comb...

Taxonomic studies of saprobic ascomycetes in Thailand and China revealed two new taxa belonging to the family Bambusicolaceae. Bambusicola fusispora sp. nov. isolated from dead branches of Gigantochloa albociliata in Thailand and Palmiascoma qujingense sp. nov. isolated from dead twigs of Fagaceae sp. in Yunnan, China, are described and illustrated...

A study was conducted to investigate saprobic fungal niches of Stachybotryaceae (Hypocreales) associated with leaves of Musa (banana) in China and Thailand. Three hyphomycetous taxa were collected during the dry season of 2018 and 2019. After a careful phenotypic characterization (both macro- and microscopically) and a phylogenetic tree reconstruct...

Endophytic fungi are internal inhabitants of plant tissues that do not apparently cause harm to the host. Ecologically they provide a number of benefits to the plants by decreasing herbivory, increasing drought and disease resistance and enhancing the growth of plants. Endophytes have emerged as an exciting research topic as they have the potential...

A study was undertaken to collect and identify saprobic fungi associated with Musaspp.(banana) from Taiwan, China, and Thailand. Samples were collected during the dry season and their morpho–molecular relationships were investigated. Five brown pleosporalean hyphomycetous taxa in Periconiaceae and Torulaceae viz. Periconia cortaderiae,P. delonicis,...

There were errors in the name of author László G. Nagy and in affiliation no. 31 in the original publication. The original article has been corrected.

A new species, Rhexocercosporidium camporesii was collected from dead branches of Scabiosa maritima (Caprifoliaceae) in Forlì-Cesena, Italy. The new species is characterized by a lack of setae surrounding the apothecia and by fusiform, aseptate ascospores containing multiple guttules. Rhexocercosporidium camporesii has larger asci and ascospores th...

A new species and a first record of Volvariella are reported from Thailand based on morphological and phylogenetic evidence. The most important features that distinguish Volvariella rostricystidiata sp. nov. are the broadly clavate to obovoid cheilocystidia with a rostrate apex and the scattered, slender and usually fusiform pleurocystidia, which l...

Early taxonomic studies of ascomycetous microfungi were conducted based on morphological observations. With the advent and advancement of DNA based molecular studies over the last few decades, species, genera, families and orders of Ascomycota have been subjected to rapid taxonomic changes. In the last eight years, we have introduced many novel fun...

Freshwater Dothideomycetes are a highly diverse group of fungi, which are mostly saprobic in freshwater habitats worldwide. They are important decomposers of submerged woody debris and leaves in water. In this paper, we outline the genera of freshwater Dothideomycetes with notes and keys to species. Based on multigene analyses and morphology, we in...

Numerous new taxa and classifications of Dothideomycetes have been published following the last monograph of families of Dothideomycetes in 2013. A recent publication by Honsanan et al. in 2020 expanded information of families in Dothideomycetidae and Pleosporomycetidae with modern classifications. In this paper, we provide a refined updated docume...

Roussoella guttulata sp. nov. (Roussoellaceae) was found on bamboo culms collected in the northeast of Thailand. Roussoella guttulata differs from other species in having immersed, gregarious, black pseudoascostromata, single and central ostiole with periphyses, thin-walled peridium composed of cells of textura angularis to textura prismatica and y...

This is the twelfth contribution to the Fungal Diversity Notes series on fungal taxonomy, based on materials collected from many countries which were examined and described using the methods of morphology, anatomy, and strain culture, combined with DNA sequence analyses. 110 taxa are described and illustrated, including five new genera, 92 new spec...

The cryptic lifestyle of most fungi necessitates molecular identiication of the guild in environmental studies. Over the past decades, rapid development and afordability of molecular tools have tremendously improved insights of the fungal diversity in all ecosystems and habitats. Yet, in spite of the progress of molecular methods, knowledge about f...

Several genera in Xylariaceae are polyphyletic in phylogenetic trees and represent more than one distinct genus. However, it is challenging to resolve these genera that are often phylogenetically distantly related, because many taxa have never been recollected and sequenced. Those that have been named and sequenced often lack documented characters...

Phosphate-solubilizing fungi (PSF) play an important role in increasing the bioavailability of phosphorus in soils for plants. Thirteen fungal strains, one collected from air and 12 from soil, were screened and described here in detail. These fungal strains were tested for their ability to solubilize tricalcium phosphate (TCP) on both solid and liq...

The class Dothideomycetes is the largest and most ecologically diverse class of fungi, comprising endophytes, epiphytes, saprobes, human and plant pathogens, lichens, and lichenicolous, nematode trapping and rock-inhabiting taxa. Members of this class are mainly characterized by bitunicate asci with fissitunicate dehiscence, and occur on broad rang...

In this paper, we described and illustrated a new species of lignicolous fungi, Distoseptispora hydei, found on decaying bamboo in Phitsanulok Province, Thailand. According to the phylogenetic results from combined sequence data (LSU, ITS and RPB2), the new species is distinct from other Distoseptispora species. Distoseptispora hydei is characteriz...

The recent realistic estimate of fungal numbers which used various algorithms was between 2.2 and 3.8 million. There are nearly 100,000 accepted species of Fungi and fungus-like taxa, which is between 2.6 and 4.5% of the estimated species. Several forums such as Botanica Marina series, Fungal Diversity notes, Fungal Biodiversity Profiles, Fungal Sy...

This article is the ninth in the series of Fungal Diversity Notes, where 107 taxa distributed in three phyla, nine classes, 31 orders and 57 families are described and illustrated. Taxa described in the present study include 12 new genera, 74 new species, three new combinations, two reference specimens, a re-circumscription of the epitype, and 15 r...

Dead leaves of Musa sp. (banana) were collected in northern Thailand during an investigation of saprobic fungi. Preliminary morphological observations revealed that three specimens belong to Dictyoarthrinium . Phylogenetic analyses of combined SSU, LSU, ITS and tef 1-α sequence data revealed that Dictyoarthrinium forms a clade in Didymosphaeriaceae...

Tropical plants host a range of fungal niches including endophytes, pathogens, epiphytes and saprobes. A study undertaken to discover the saprobic fungal species associated with Musa sp. (banana) from northern Thailand found two hyphomycetous taxa of Spegazzinia (Didymosphaeriaceae, Pleosporales). These were collected during the dry season and thei...

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...

A survey of lignicolous terrestrial ascomycetes conducted in Thailand yielded a number of novel species. In this paper, we report on a terrestrial collection of a taxon from dead branches of an unidentified plant. Triseptata gen. et sp. nov. is characterized by immersed, uni- to multi-loculate ascomata, filamentous pseudoparaphyses, bitunicate, fis...

We are studying microfungi growing on Poaceae hosts in different geographical regions and in this study we introduce Kwanghwana miscanthi Karun., C.H.Kuo & K.D.Hyde, gen. et sp. nov., based on phylogenetic analyses of DNA sequences of four loci used in combination (three ribosomal (LSU, SSU and ITS) and one protein coding region (TEF1-α)) and on mor...

This paper is the first in the AJOM series in which we report 100 new collections of fungi which include new species, host and country records. In all, nine new species, 90 new records and one new combination are introduced. The purpose of this series is to provide an outlet for publishing collections with sequence data, so that these observations...

We are proud to publish a special issue of Fungal Diversity in honour of the contributions made by Erio Camporesi, who has promoted mycological research as a prodigious amateur mycologist and collector of fungi. The special issue includes Fungal Diversity notes 11, with many taxa named in Erio’s honour and a monograph of hyaline-spored Coelomycetes...

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...

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...

Fungal diversity notes is one of the important journal series of fungal taxonomy that provide detailed descriptions and illustrations of new fungal taxa, as well as providing new information of fungal taxa worldwide. This article is the 11th contribution to the fungal diversity notes series, in which 126 taxa distributed in two phyla, six classes,...

During our studies on asexual fungi colonizing herbaceous litter in northern Thailand, we discovered two new fungal species, viz. Dendryphion hydei and Torula hydei spp. nov. The latter are examined, and their morphological characters are described as well as their DNA sequences from ribosomal and protein coding genes are analysed to infer their ph...

Diatrypaceous fungi on palms (Arecaceae) in Thailand were collected and identified based on morphological characteristics as well as combined DNA sequence analyses (ITS and TUB2). One new genus Allodiatrype, and five new species, Allocryptovalsa elaeidis, Allodiatrype arengae, A. elaeidicola, A. elaeidis and Diatrypella elaeidis are introduced. A c...

Three new Mendogia species are introduced, two from bamboo and one from a palm, with descriptions and illustrations. These three new taxa were placed in the genus Mendogia based on superficial, flattened, centrally raised, multi-loculate, round to elliptical, black ascostromata, (6–)8(–10)-spored, subglobose to cylindric-clavate asci and muriform a...

We introduce a new fungal species, Ophiobolus hydei, from dead stems of Cirsium alatum (Compositae) and Phlomoidesbrachystegia (Lamiaceae), based on morphological and phylogenetic evidence. The species was collected from the Mountains of Western Tien Shan and southwestern Hissar in Uzbekistan. Ophiobolus hydei is characterized by globose to subglob...

Arthrinium setostromum sp. nov., collected from dead branches of bamboo in Yunnan Province of China, is described and illustrated with the sexual and asexual connections. The sexual morph of the new taxon is characterized by raised, dark brown to black, setose, lenticular, 1–3-loculate ascostromata, immersed in a clypeus, unitunicate, 8-spored, bro...

Keissleriella bambusicola sp. nov., collected from Yunnan Province in China, is described and illustrated in this paper. The new taxon was well placed in the genus Keissleriella based on subglobose to ampulliform, uni- to bi-loculate ascostromata with an ostiole covered by dark setae, 8-spored, bitunicate, fissitunicate, cylindrical to cylindric-cl...

Dothidotthia and Thyrostroma (Dothidotthiaceae, Pleosporineae, Pleosporales) species are plant pathogens causing canker, dieback and leaf spots on a wide range of hosts. However, the naming species is difficult, due to insufficient protologues, poor phylogenetic understanding due to the lack of sequence data from type species and low-quality illust...

Thyrostroma ephedricola, isolated from Ephedra equisetina from Uzbekistan is introduced as a new species and a new combination, Thyrostroma jaczewskii (B. Sutton) is proposed. Both species are characterised by sporodochial, punctiform conidiomata, and brown cylindrical to subcylindrical, 1-3-septate conidiophores, cylindrical, clavate, or ellipsoid...

Phaeosphaeriaceae comprises many fungal species occuring mainly on grasses and cereal crops as endophytes, saprobes and especially pathogens. Parastagonospora is an important genus in Phaeosphaeriaceae that includes pathogens causing leaf and glume blotch on cereal crops. In this study, a sexual morph species and an asexual morph species, occuring...

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...

A new species of Neoroussoella (Roussoellaceae) collected in Taiwan is introduced from Pennisetum purpureum with both asexual and sexual morphs. Phylogenetic analysis of a concatenated LSU-ITS-SSU-TEF1-α-RPB2 sequence dataset reveals that the new species forms a distinct sister clade with N. bambusae with high statistical support (100% ML/ 1.00 BYP...

Muyocopron species were collected from dried branches of Hevea brasiliensis in Thailand. These were studied and compared with related taxa, based on the evidence from morphology and phylogenetic analyses of a combined LSU and SSU DNA sequence data. A new host record, Muyocopron dipterocarpi, and a new species, Muyocopron heveae, are described and i...

This article is the ninth in the series of Fungal Diversity Notes, where 107 taxa distributed in three phyla, nine classes, 31 orders and 57 families are described and illustrated. Taxa described in the present study include 12 new genera, 74 new species, three new combinations, two reference specimens, a re-circumscription of the epitype, and 15 r...

Roussoella species mainly occur on monocotyledons, especially bamboo, and are characterized by raised, immersed ascostromata, cylindrical to clavate asci and ellipsoidal to fusiform, brown to dark brown, 1-septate, ornamented ascospores. They have cytospora-like asexual morphs with enteroblastic conidiogenous cells and hyaline to dark brown conidia...

Neostagonosporellasichuanensis sp. nov. was found on Phyllostachysheteroclada collected from Sichuan Province in China and is introduced in a new genus Neostagonosporella gen. nov. in this paper. Evidence for the placement of the new taxon in the family Phaeosphaeriaceae is supported by morphology and phylogenetic analysis of a combined LSU, SSU, I...