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Abstract Detail

Mycological Section

Peterson, Stephen [1], Zeljko, Jurjevic [2], Frisvad, Jens [3].

Expanding the species and chemical diversity of Penicillium section Cinnamopurpurea.

A set of isolates genetically similar to or potentially conspecific with an unidentified Penicillium isolate NRRL 735, was assembled using a Blast search of ITS similarity among described (GenBank) and undescribed Penicillium isolates (laboratory database) in our laboratories. DNA was amplified from six loci of the assembled isolates and sequenced. The DNA sequence data were analyzed by concordance of the trees from individual loci. This analysis revealed the presence of seven new species, Penicillium colei, Penicillium cvjetkovicii, Penicillium fluviserpens, Penicillium lemhiflumine, Penicillium monsgalena and Penicillium salmoniflumine. Extrolite analysis showed that two of the new species, P. colei and P. monsserratidens produce the mycotoxin citreoviridin that has demonstrated pharmacological activity against human lung tumors. These isolates could provide leads in pharmaceutical research. A list of verified citreoviridin producing species is included. Blast searches of GenBank near the end of this project revealed two sequences from Colombian endophytes with ITS sequence identical to P. fluviserpens and three isolates, from apples in South Africa, cheese in Europe and an epiphyte of a macrofungus in China, that had ITS sequences identical to P. cvjetkovicii. The fungal ITS barcode provides correct identification of these Penicillium sp. in four cases and resolves the mis-identity of a rot fungus from apples.

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1 - National Center for Agricultural Utilization Research, Bacterial Foodborne Pathogens and Mycology Research, 1815 North University Street, Peoria, IL, 61604, USA
2 - EMSL Analytical, Inc., 200 Route 130 North, Cinnaminson, NJ, 08077, USA
3 - Technical University of Denmark, Department of Systems Biology, Building 221, Lyngby, DK-2800, Kgs, Denmark

concordance analysis.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Hall D/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 5:30 PM
Number: PMY056
Abstract ID:490
Candidate for Awards:None

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