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Abstract
During a survey of mucoralean fungi from a Cerrado reserve (Brazilian savanna) some isolates of a Mucor-like fungus were isolated from soil plates. Characterization based on morphological, physiological and molecular data from translation elongation factor (EF-1α), 28S (D1/D2) and ITS1-5.8S-ITS2 rDNA sequences was made. The isolates produce lateral branches bearing multispored sporangiola in addition to the multispored sporangia and a uniformly septate mycelium as the main differentiating characteristics. To our surprise this fungus possesses two EF-1α genes 1.4 and 1.5 kb long. Evidence from the analyzed datasets supports the delimitation of a new genus and the inclusion of Mucor fuscus based on 28S and ITS rDNA data.
Acknowledgments
The authors thank Dr Tarciso S. Filgueiras for Latin diagnosis, Dr Kerry O’Donnell for the inestimable help in English and critical reviewing the manuscript, the two anonymous reviewers for critical reading and valuable suggestions, Ms Janaina da Rocha for laboratorial support, Mr Edson Pires for field assistance, Fapesp (project 2008/53146-4) for financial support given to C.L.A. Pires-Zottarelli, CNPq (PIBIC) for scholarship given to J.F. Santos, Dr Agostina V. Marano and Dr Jefferson Prado for important comments and suggestions.