A new species of Lichtheimia (Mucoromycotina, Mucorales) isolated from Brazilian soil

作者：Santiago Andre L C M de A^*; Hoffmann Kerstin; Lima Diogo X; de Oliveira Rafael J V; Vieira Helder E E; Malosso Elaine; Maia Leonor C; da Silva Gladstone A

来源：Mycological Progress, 2014, 13(2): 343-352.

DOI：10.1007/s11557-013-0920-8

• Lichtheimiaceae
• Phylogeny
• Taxonomy
• Temperature

During studies on Mucorales in semiarid and littoral dune areas in the northeast of Brazil, two cultures of an Absidia-like species were isolated from soil. They were characterized based on morphological, physiological and molecular data (5.8S and LSU rDNA sequences). The phylogenetic analyses of the isolates revealed that they belong to the Lichtheimiaceae and are closely related to species of Lichtheimia. The two isolates produced simple or branched, erect and circinate sporophores, occasionally with a septum under the sporangia, characteristics also common in Lichtheimia species. However, different from the described Lichtheimia species, the columellae of our isolates were mainly short hemispherical, never spatulate or elliptical and without projections. Sometimes, a long conical or bell shaped apophysis was found. Both isolates grew better at 30-35 A degrees C, with no development at 42 A degrees C, and giant cells were not observed. Based on the evidence of the analyzed datasets a new species of Lichtheimia is proposed.

• 出版日期2014-5