We have investigated the gills of both the control and gamma-irradiated groups of A.bisporus and P.ostreatus (2.5 kGy or 2.5 and 5.0 kGy doses, respectively) by scanning (SEM) and transmission (TEM) electron microscopy. The primary aim of our study was to see, how gamma-irradiation used for shelflife extension inhibits spore production. We have found in both species that inhibition of spore production in irradiated specimens is caused by the destroying of basidia rather than by retarding normal spore development. In P.ostreatus the hymenium appears to be more sensitive to irradiation than in A.bisporus. In both species the subhymenium and trama seem less sensitive than the hymenium.
Keresztes, A.; Kovacs, J.; and Kovacs, E.
"Effect of Ionizing Irradiation and Storage on Mushroom Ultrastructure. I. The Gills of Agaricus Bisporus (LGE.) Imbach and Pleurotus Ostreatus (Jacq. Ex Fr.) Kummer,"
Food Structure: Vol. 4
, Article 18.
Available at: http://digitalcommons.usu.edu/foodmicrostructure/vol4/iss2/18