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Delonicicola siamense gen. & sp. nov. (Delonicicolaceae fam. nov., delonicicolales ord. nov.), a saprobic species from Delonix regia seed pods

Rekhani H. PERERA, Sajeewa S. N. MAHARACHCHIKUMBURA, E. B. Gareth JONES, Ali H. A. BAHKALI, Abdallah M. ELGORBAN, Jian-Kui LIU, Zuo-Yi LIU & Kevin D. HYDE

en Cryptogamie, Mycologie 38 (3) - Pages 321-340

Published on 29 September 2017

This paper introduces a new genus Delonicicola, to accommodate D. siamense sp. nov., which was found associated with Delonix regia seed pods, collected in Chiang Rai Province, Thailand. ITS sequence data confirmed a close relationship of Delonicicola with Liberomyces and Asteromella in Xylariomycetidae. Phylogenetic and molecular clock analyses of combined LSU, SSU and RPB2 sequence data provide evidence for a new family Delonicicolaceae and a new order Delonicicolales in Xylariomycetidae. Members of Delonicicolaceae are saprobes, endophytes or pathogens of angiosperms and it is characterized by pseudostromatal immersed, papillate ascomata, short pedicellate asci with a simple apex and 1-septate, hyaline ascospores. The asexual morph is coelomycetous with pycnidial conidiomata and allantoid, filiform or bacilloid, hyaline conidia.


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