You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effects of Culture Conditions on Mycelial Growth and Luminescence in Panellus stypticus
David Bermudes, Valerie L. Gerlach and Kenneth H. Nealson
Vol. 82, No. 3 (May - Jun., 1990), pp. 295-305
Published by: Mycological Society of America
Stable URL: http://www.jstor.org/stable/3759900
Page Count: 11
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
A pure culture of Panellus stypticus was isolated from a mature basidiocarp and studied for its growth and luminescence abilities under various environmental and nutritional conditions. The culture was non-luminous growing submerged in defined liquid media with or without agitation. After a two- to three-day lag period on solid substrata, luminescence increased exponentially with a doubling time of 4 hours while the increase in colony radial growth was linear. On solid substrata, growth and total light emission were strongly correlated under most conditions studied. Optimal conditions included darkness; 28 C; pH 3.8; glucose, maltose, trehalose, cellobiose or pectin as carbon source; and ammonia or asparagine as nitrogen source. Growth and luminescence were inhibited by ambient fluorescent light. Dark-grown colonies were brightest in the center while light-grown colonies were brightest at the periphery. Cultures hydrolyzed starch and produced an extracellular phenoloxidase. Conditions for production of luminescent basidiocarps by this culture are described.
Mycologia © 1990 Mycological Society of America