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Seven New Luminescent Mushroom Species Discovered

Date:
October 5, 2009
Source:
San Francisco State University
Summary:
Seven new glow-in-the-dark mushroom species have been discovered, increasing the number of known luminescent fungi species from 64 to 71. The new finds include two new species named after movements in Mozart's Requiem. The discoveries also shed light on the evolution of luminescence, adding to the number of known lineages in the fungi "family tree" where luminescence has been reported.

A new luminescent fungus, Mycena luxaeterna discovered by San Francisco State University Professor Dennis Desjardin and Professor Cassius V. Stevani from the University of Sao Paulo has been reported in the journal Mycologia. The species was collected in Sao Paulo, Brazil and was found on sticks in an Atlantic forest habitat. These mushrooms are tiny with each cap measuring less than 8 millimeters in diameter and their stems have a jelly-like texture. The species' name was inspired by Mozart's Requiem.
Credit: Cassius V. Stevani, Chemistry Institute, University of Sao Paulo

Seven new glow-in-the-dark mushroom species have been discovered, increasing the number of known luminescent fungi species from 64 to 71. Reported in the journal Mycologia, the new finds include two new species named after movements in Mozart's Requiem. The discoveries also shed light on the evolution of luminescence, adding to the number of known lineages in the fungi 'family tree' where luminescence has been reported.

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San Francisco State University Biology Professor Dennis Desjardin and colleagues discovered the fungi in Belize, Brazil, Dominican Republic, Jamaica, Japan, Malaysia and Puerto Rico. The discoveries include four species new to science and three new reports of luminescence in known species. Three quarters of glowing mushrooms, including the species described in the study, belong to the Mycena genus, a group of mushrooms that feed off and decompose organic matter as a source of nutrients to sustain their growth.

"What interests us is that within Mycena, the luminescent species come from 16 different lineages, which suggests that luminescence evolved at a single point and some species later lost the ability to glow," said Desjardin, lead author of the study. He believes that some fungi glow in order to attract nocturnal animals that aid in the dispersal of the mushroom's spores which are similar to seeds and are capable of growing into new organisms.

"It's pretty unusual to find this many luminescent species, typically only two to five percent of the species we collect in the field glow," Desjardin said. "I'm certain there are more out there."

The newly discovered fungi glow constantly, emitting a bright, yellowish-green light, and are tiny, with caps smaller than one centimeter across.

Desjardin has named two of the new species Mycena luxaeterna (eternal light) and Mycena luxperpetua (perpetual light), names inspired by Mozart's Requiem and the fact that these mushrooms glow 24 hours a day. To date, Desjardin has discovered more than 200 new fungi species and together with these latest findings, has discovered nearly a quarter of all known luminescent fungi.

"Luminescent Mycena: new and noteworthy species" was published online in the journal Mycologia on Oct. 5 and will appear in the March/April 2010 print issue. Co-authors include Brian A. Perry, former graduate student at San Francisco State University and currently of the University of Hawaii, D. Jean Lodge of the U.S. Forest Service, Cassius V. Stevani of the University of Sao Paulo, Brazil and Eiji Nagasawa of the Tottori Mycological Institute, Japan.

This research was supported by the National Science Foundation and the National Geographic Society.


Story Source:

The above story is based on materials provided by San Francisco State University. Note: Materials may be edited for content and length.


Cite This Page:

San Francisco State University. "Seven New Luminescent Mushroom Species Discovered." ScienceDaily. ScienceDaily, 5 October 2009. <www.sciencedaily.com/releases/2009/10/091005123045.htm>.
San Francisco State University. (2009, October 5). Seven New Luminescent Mushroom Species Discovered. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2009/10/091005123045.htm
San Francisco State University. "Seven New Luminescent Mushroom Species Discovered." ScienceDaily. www.sciencedaily.com/releases/2009/10/091005123045.htm (accessed January 31, 2015).

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