Talaromyces section Tenues B.D. Sun, A.J. Chen, Houbraken & Samson, B. D. Sun, A. J. Chen, Houbraken & Samson, 2020

Sun, Bing-Da, Chen, Amanda J., Houbraken, Jos, Frisvad, Jens C., Wu, Wen-Ping, Wei, Hai-Lei, Zhou, Yu-Guang, Jiang, Xian-Zhi & Samson, Robert A., 2020, New section and species in Talaromyces, MycoKeys 68, pp. 75-113: 75

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Talaromyces section Tenues B.D. Sun, A.J. Chen, Houbraken & Samson

sect. nov.

Talaromyces section Tenues B.D. Sun, A.J. Chen, Houbraken & Samson   sect. nov.


Talaromyces tenuis   B.D. Sun, A.J. Chen, Houbraken & Samson


Conidiophores monoverticillate or biverticillate, with hyaline, thin stipes, colonies grow restrictedly on CYA, YES, DG18, slightly faster on MEA and OA, no growth on CYAS and CREA at 25 °C and CYA incubated at 37 °C.

Phylogenetic analysis places Talaromyces section Tenues   sister to sections Talaromyces   and Helici   (Fig. 1 View Figure 1 ); however, statistical support for this relationship is lacking. Using a nine-gene sequence data set, Houbraken et al. (2020) confidently shows that Talaromyces   sp. CBS 141840 (= T. tenuis   , the sole representative of the section) is sister to sect. Purpurei   and Trachyspermi   . section Trachyspermi   species produce abundant red pigments ( Yilmaz et al. 2014), while Talaromyces tenuis   does not. section Purpurei   species generally grow rapidly on CYA and MEA, and usually produce synnemata after two to three weeks of incubation ( Yilmaz et al. 2014).


Named after the type species of the section, Talaromyces tenuis   .