Volume 13 Part 2 Article 43: Interrelationships between Activated Charcoal, Carbon Dioxide, Oxalate and Iron Chemistry for Fructification of Agaricus bisporus

Volume 13 Part 2 Article 43
Year 1991
Title: Interrelationships between Activated Charcoal, Carbon Dioxide, Oxalate and Iron Chemistry for Fructification of Agaricus bisporus
Authors: M.N. Verbeke and A. Overstyns

Abstract:

Activated charcoal is shown to influence reactions of CO2 in water Its effects and the effects of CO2 on fructification could be due to reactions m the water of the medium, regulating the Ca2+ solubility in a surface sensitive way Heat sterilisation is shown to interfere with the reactions that liberate Ca2+, which explains the negative effects of sterilisation on fructification. An essential role of Ca2+ is concerned with the regulation of the oxalate concentration in the casing layer Soluble oxalate inhibits fructification. This is thought to find its origin in its iron chelating properties. Available evidence suggests that the chelated iron becomes reduced. Iron, in the reduced state, inhibits fructification At the surface activated charcoal sensitive oxidation of Fe2+ would stimulate primordium formation The idea that iron chemistry ultimately regulates growth or reproduction seems a step towards an unifying theory on fructification control.

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