Two New Sexual Talaromyces Species Discovered in Estuary Soil in China

Abstract

In the survey of mycobiota of mudflats in China, two new sexually reproducing Talaromyces sect. Talaromyces species were discovered and studied using a polyphasic approach. These species are named here Talaromyces haitouensis (ex-type AS3.160101T) and Talaromyces zhenhaiensis (ex-type AS3.16102T). Morphologically, T. haitouensis is distinguished by moderate growth, green-yellow gymnothecia, orange-brown mycelium, and echinulate ellipsoidal ascospores. T. zhenhaiensis is characterized by fast growth, absence of sporulation, cream yellow to naphthalene yellow gymnothecia and mycelium, and smooth-walled ellipsoidal ascospores with one equatorial ridge. The two novelties are further confirmed by phylogenetic analyses based on either individual sequences of BenA, CaM, Rpb2, and ITS1-5.8S-ITS2 or the concatenated BenA-CaM-Rpb2 sequences.

New Secondary Metabolites from Marine-Derived Fungus Talaromyces minnesotensis BTBU20220184

“…In summary, 12 compounds, including 6 new compounds, talamitones A and B (1 and 2), demethyltalamitone B (3), talamiisocoumaringlycosides s A and B (4 and 5), and talaminaphtholglycoside ( 6), together with 6 previous reported compounds, mucorisocoumarin B (7), diaportinol (8), peniisocoumarin E (9), dichlorodiaportin (10), orsellinic acid (11), and 4-(hydroxymethyl)-5-hydroxy-2H-pyran-2-one (12), were isolated from the marine sediment-derived fungus T. minnesotensis BTBU20220184. The structures of the new compounds were characterized by HREIMS and NMR data analysis.…”

“…[19,20]. Further research on a marine-derived fungus from Qinzhou Bay, Guangxi Province, China, resulted in the identification of twelve compounds, including six new compounds, talamitones A and B (1 and 2), demethyltalamitone B (3), talamiisocoumaringlycosides A and B (4 and 5), and talaminaphtholglycoside (6), along with six reported compounds, mucorisocoumarin B (7), diaportinol (8), peniisocoumarin E (9), dichlorodiaportin (10), orsellinic acid (11), and 4-(hydroxymethyl)-5-hydroxy-2H-pyran-2-one (12) (Figure 1), from T. minnesotensis BTBT20220184 . Compounds 5, 6, and 9 showed synergistic antibacterial activity against Staphylococcus aureus.…”

New Species of Talaromyces (Trichocomaceae, Eurotiales) from Southwestern China

“…Forty-three species of the Talaromyces have been reported as new to science based on materials collected from China. They are distributed all over the country, especially in southwestern regions, for example, T. chongqingensis and T. wushanicus are from Chongqing, T. albisclerotius, T. guizhouensis, T. penicillioides, T. resinae, T. rosarhiza, and T. tenuis are from Guizhou, T. ginkgonis is from Sichuan, T. neofusisporus and T. qii are from Tibet, and T. aspriconidius, T. aureolinus, T. bannicus, T. rufus, T. shiliensis, and T. yunnanensis are from Yunnan [1,4,6,[9][10][11]. This proves that southwestern China is one of the global biodiversity hotspots.…”

“…A total of 171 species were compiled in the genus and listed in the latest monograph [3]. Furthermore, 26 new taxa were afterwards noted [1,[4][5][6][7][8][9][10][11][12]. Twenty of them are from Asia: T. albisclerotius B.D.…”

Soil Mycobiome Diversity under Different Tillage Practices in the South of West Siberia

“…As for the Talaromyces genus, i.e., another dominant fungal genus with differentially increased abundance in the notill soil, it occurs in various environments, e.g., soil, air, living or rotten plants, and indoors, some of them causing mycoses [ 53 , 54 ]. It is a very species-rich genus, with new species being regularly discovered [ 55 ]; despite its diverse physiology and environmental preferences, it is safe to assume that in our soils its representatives ( T. rugulosus, T. albobiverticillius, T. thermophilus, T. luteus, T. ohiensis, and some unclassified Talaromyces ) were mostly involved also in straw residue decomposition [ 56 ].…”