Physiological studies on the growth and fructification of the edible basidiomycete series, Pleurotus sajor-caju (Fr.) Sing. and Stropharia rugoso-annulata Farl. ap. Murr.


The influence of various cultural conditions on the growth of thirteen edible fungi was studied in preliminary investigations. Based on the results of these experiments, two basidiomycete species, Pleurotus sajor-caju (Fr.) Sing. and Stropharia rugoso-annulata Farl, ap, Murr. were selected for further studies on growth and fruit-body formation. The two fungi proved to be good decomposers of cereal straw, but P.sajor-caju showed ability to degrade a wider range of plant waste materials than S.rugoso-annulata. Carbon : nitrogen ratios of 90 : 1 and 60 : 1 were optimal for P.sajor-caju and S.rugosoannulata respectively. Both species were found to be heterotrophic for thiamine. Tolerance to high concentrations of carbon dioxide was exhibited by the two species during the vegetative phase, S. rugosoannulata being more sensitive to changes in oxygen and carbon dioxide concentration, In the reproductive stage however, ventilation was necessary for both species. While P.sajor-caju required light for primordium formation and fruit-body development, S.rugoso-annulata appeared to be indifferent to light. P.sajor-caju showed no need for a casing layer to fructify. In contrast, S.rugoso-annulata required casing soil for fruit-body formation. The presence of micro-organisms was shown to be necessary for fruit-body formation of S.rugoso-anmlata.

Divisions: College of Health & Life Sciences > School of Biosciences
Additional Information: Copyright © Okwu, 1981. C.I.S. Okwu asserts their moral right to be identified as the author of this thesis. This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with its author and that no quotation from the thesis and no information derived from it may be published without appropriate permission or acknowledgement. If you have discovered material in Aston Publications Explorer which is unlawful e.g. breaches copyright, (either yours or that of a third party) or any other law, including but not limited to those relating to patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please read our Takedown Policy and contact the service immediately.
Institution: Aston University
Uncontrolled Keywords: physiology,growth,fructification,basidiomycete series,Pleurotus sajor-caju (Fr.) Sing.,Stropharia rugoso-annulata Farl. ap. Murr.
Last Modified: 28 Jun 2024 07:18
Date Deposited: 10 Jan 2011 14:08
Completed Date: 1981
Authors: Okwu, Cajetan I.S.

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