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Expanding the species and chemical diversity of Penicillium section Cinnamopurpurea.

Peterson SW, Jurjević Ž, Frisvad JC - PLoS ONE (2015)

Bottom Line: Accordingly we use genealogical concordance analysis, a technique valid only in heterothallic organisms, for putatively asexual species.Seven new species were revealed in the analysis and are described here.These isolates could provide leads in pharmaceutical research.

View Article: PubMed Central - PubMed

Affiliation: Bacterial Foodborne Pathogens and Mycology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, 1815 North University Street, Peoria, Illinois, 61604, United States of America.

ABSTRACT
A set of isolates very 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 in our laboratories. DNA was amplified from six loci of the assembled isolates and sequenced. Two species in section Cinnamopurpurea are self-compatible sexual species, but the asexual species had polymorphic loci suggestive of sexual reproduction and variation in conidium size suggestive of ploidy level differences typical of heterothallism. Accordingly we use genealogical concordance analysis, a technique valid only in heterothallic organisms, for putatively asexual species. Seven new species were revealed in the analysis and are described here. 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.

No MeSH data available.


Related in: MedlinePlus

Penicillium idahoense.14 day old colonies grown on: a. CYA, b. MEA, c. PDA. d. CYA reverse, e. MEA reverse, f. PDA reverse, g. CY20S, h. CYAS, i. OA. j. Branching of penicillus. k. Detailed view of phialides and stipes. l. Conidia displaying two size ranges. Bar = 10 μm.
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pone.0121987.g011: Penicillium idahoense.14 day old colonies grown on: a. CYA, b. MEA, c. PDA. d. CYA reverse, e. MEA reverse, f. PDA reverse, g. CY20S, h. CYAS, i. OA. j. Branching of penicillus. k. Detailed view of phialides and stipes. l. Conidia displaying two size ranges. Bar = 10 μm.

Mentions: An array of photographs and microphotographs of Penicillium idahoense is included here for comparative purposes (Fig. 11).


Expanding the species and chemical diversity of Penicillium section Cinnamopurpurea.

Peterson SW, Jurjević Ž, Frisvad JC - PLoS ONE (2015)

Penicillium idahoense.14 day old colonies grown on: a. CYA, b. MEA, c. PDA. d. CYA reverse, e. MEA reverse, f. PDA reverse, g. CY20S, h. CYAS, i. OA. j. Branching of penicillus. k. Detailed view of phialides and stipes. l. Conidia displaying two size ranges. Bar = 10 μm.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4390383&req=5

pone.0121987.g011: Penicillium idahoense.14 day old colonies grown on: a. CYA, b. MEA, c. PDA. d. CYA reverse, e. MEA reverse, f. PDA reverse, g. CY20S, h. CYAS, i. OA. j. Branching of penicillus. k. Detailed view of phialides and stipes. l. Conidia displaying two size ranges. Bar = 10 μm.
Mentions: An array of photographs and microphotographs of Penicillium idahoense is included here for comparative purposes (Fig. 11).

Bottom Line: Accordingly we use genealogical concordance analysis, a technique valid only in heterothallic organisms, for putatively asexual species.Seven new species were revealed in the analysis and are described here.These isolates could provide leads in pharmaceutical research.

View Article: PubMed Central - PubMed

Affiliation: Bacterial Foodborne Pathogens and Mycology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, 1815 North University Street, Peoria, Illinois, 61604, United States of America.

ABSTRACT
A set of isolates very 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 in our laboratories. DNA was amplified from six loci of the assembled isolates and sequenced. Two species in section Cinnamopurpurea are self-compatible sexual species, but the asexual species had polymorphic loci suggestive of sexual reproduction and variation in conidium size suggestive of ploidy level differences typical of heterothallism. Accordingly we use genealogical concordance analysis, a technique valid only in heterothallic organisms, for putatively asexual species. Seven new species were revealed in the analysis and are described here. 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.

No MeSH data available.


Related in: MedlinePlus