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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Mycotoxin Prevention and Applied Microbiology Research » Research » Publications at this Location » Publication #315977

Title: Expanding the species and chemical diversity of Penicillium section Cinnamopurpurea

Author
item Peterson, Stephen
item JURJEVIC, ZELJKO - Emsl Analytical, Inc
item FRISVAD, JENS - Technical University Of Denmark

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 7/29/2015
Publication Date: 7/29/2015
Citation: Peterson, S.W., Jurjevic, Z., Frisvad, J.C. 2015. Expanding the species and chemical diversity of Penicillium section Cinnamopurpurea [abstract].

Interpretive Summary:

Technical Abstract: A set of isolates genetically similar to or potentially conspecific with an unidentified Penicillium isolate NRRL 735, was assembled using a Basic Local Alignment Search Tool (BLAST) search of internal transcribed spacer (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.