Comprehensive treatise of and three new genera , and on spiders in Cordycipitaceae from Thailand.

Collections of pathogenic fungi found on spiders from Thailand were selected for a detailed taxonomic study. Morphological comparison and phylogenetic analyses of the combined ITS, LSU, , and sequence data indicated that these specimens formed new independent lineages within the Cordycipitaceae, containing two new genera occurring on spiders, i.e.

Phylogeny- and morphology-based recognition of new species in the spider-parasitic genus (Hypocreales, Cordycipitaceae) from Thailand.

Thailand is known to be a part of what is called the Indo-Burma biodiversity hotspot, hosting a vast array of organisms across its diverse ecosystems. This is reflected by the increasing number of new species described over time, especially fungi. However, a very few fungal species from the specialized spider-parasitic genus have ever been reported from this region.

Pigmentosins from sp. as antibiofilm agents and a new glycosylated asperfuran from .

In the course of our exploration of the Thai invertebrate-pathogenic fungi for biologically active metabolites, pigmentosin A () and a new bis(naphtho-α-pyrone) derivative, pigmentosin B (), were isolated from the spider-associated fungus sp. Furthermore, a new glycosylated asperfuran , together with one new () and two known ( and ) cyclodepsipeptides, was isolated from . The pigmentosins and showed to be active against biofilm formation of DSM1104.

Phylogenetic and morphological classification of species on termites from Thailand.

Seven new species occurring on termites are added to - , , , , , and , based on morphological and molecular phylogenetic evidence. possesses orange to reddish-brown immersed perithecia on cylindrical to clavate stromata. , and have pseudo-immersed perithecia while , and all possess superficial perithecia, reminiscent of and .

Cordybislactone, a stereoisomer of the 14-membered bislactone clonostachydiol, from the hopper pathogenic fungus Cordyceps sp. BCC 49294: revision of the absolute configuration of clonostachydiol.

Cordybislactone (3), a new stereoisomer of the 14-membered bislactone clonostachydiol, together with its open ring analog (4), was isolated from the hopper pathogenic fungus Cordyceps sp. BCC 49294. The relative and absolute configurations of 3 were determined by chemical derivatizations, including the modified Mosher's method.

New species of Ophiocordyceps unilateralis, an ubiquitous pathogen of ants from Thailand.

Ophiocordyceps unilateralis is an ubiquitous pathogen of ants with hidden phylogenetic diversity associated with host specificity. In this study, we describe two new species to this species complex: Ophiocordyceps septa and Ophiocordyceps rami. Both were found on unidentified ants of the genus Camponotus (C.

Bioactive anthraquinone dimers from the leafhopper pathogenic fungus Torrubiella sp. BCC 28517.

Torrubiellins A (1) and B (2), two new dimeric anthraquinones were isolated from the leafhopper pathogenic fungus Torrubiella sp. BCC 28517. The structures of the new compounds were elucidated by analyses of the NMR spectroscopic and mass spectrometry data.

Ophiocordyceps halabalaensis: a new species of Ophiocordyceps pathogenic to Camponotus gigas in Hala Bala Wildlife Sanctuary, Southern Thailand.

Several fungal pathogens of ants have been reported as members of the family Ophiocordycipitaceae in the order Hypocreales. Surveys in the south of Thailand have shown specimens showing characteristics that are morphologically similar to Ophiocordyceps unilateralis, a very common ant pathogen, by producing a lateral pad on one side of the stroma and producing whole ascospores. Phylogenetic analyses of the partial elongation factor tef1-α and the internal transcribed spacer regions ITS1-5.

Ophiocordyceps barnesii and its relationship to other melolonthid pathogens with dark stromata.

A hypocrealean Coleoptera pathogen with characteristic part-spores, collected from Khao Yai National Park and Kaeng Krachan National Park in Thailand, is reported. The overall morphology was similar to Cordyceps barnesii, which is known from Sri Lanka, with ascospores disarticulating into four unusually long part-spores that were 30-40 μm long. This disarticulation and part-spore size is, so far, unique within Cordyceps sensu lato.

An antimycobacterial cyclodepsipeptide from the entomopathogenic fungus Ophiocordyceps communis BCC 16475.

A novel cyclodepsipeptide, cordycommunin (1), and two dihydroisocoumarins (2 and 3) were isolated from the insect pathogenic fungus Ophiocordyceps communis BCC 16475. The absolute configurations of the amino acid residues of 1 were addressed by application of Marfey's method. Cordycommunin (1) showed growth inhibition of Mycobacterium tuberculosis H37Ra with an MIC value of 15 microM.