M N O P

M

Mesophilic organisms
Organisms that develop at an average temperature (as a rule that’s 4-32°С).

Micron
A unit of length equal to one millionth of a meter.

Mould
A general term for saprophytic or parasitic fungi. Usually these are rather extensive colonies varied in form and colour. Moulds colonies are dust-like, velvety or scab-like.

Mycelium
(Lat. mусеlium)
The thallus of a fungus containing uni- and multi-cellular filaments (hyphae), a spawn.

Mycology
The study of fungi.

Mycosphere
The environment adjoining mycelium.

P

Parasite
An organism living and feeding on another organism injuring and sometimes even destroying it.

Partial pressure
Gas or steam pressure in a mixture that this gas or steam could exert if its volume equaled that of the whole mixture.

Pasteurization
(after Louis Paster)
In mushroom-growing – partial sterilization of substrate at the temperature of 60°С and for a certain exposure period.

Pathogen
(Greek Pathos+genos)
A morfibic organism which the causative agent of a disease.

Pesticides
(Lat. реstis+саеdrе)
A general term for chemicals used for pest control.

Pin
A formed mushroom fruit body

Primordial
(Lat. primordium)
Rudiments of fruiting bodies. At first they are round-oblong while later emerge a cap and a stalk.