Volume 16 Part 1 Article 14: Effect of CaCO3 on Morchella Growth and Sclerotia Formation

Volume 16 Part 1 Article 14
Year 2004
Title: Effect of CaCO3 on Morchella Growth and Sclerotia Formation
Author: S. Masaphy

Abstract:

An essential step in the Morchella life cycle is the production of sclerotia, which is a key factor in fruiting body formation and quality. Sclerotia production is dependent on the composition of the growth medium. The effect of adding CaCO3 to potato dextrose agar medium on mycelium morphology, growth rate and sclerotia formation of Morchella esculenta was studied. Calcium carbonate enhanced both mycelial linear growth rate and sclerotia formation. Other salts, such as MgCO3 and CaO had a similar effect as that of CaCO3, in contrast to Na2CO3 and K2CO3, while CaSO4 did not increase growth rate, but did enhance sclerotial production. It was conclude that the pH of the medium changed due to the addition of CaCO3, which affected fungal growth and morphology.

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