[Antagonistic Properties of Microscopic Fungi Isolated from Plasterboard].

Aim: The aim was to study the antagonistic interactions between microscopic fungi that often contaminate plasterboard, and test cultures which recommended determining the fungus resistance.

Methods: Determination of interactions between test-cultures and strains isolated from plasterboard was carried out by agar block method.

Results: The isolated from plasterboard Alternaria infectoria F-41218 E.

[THE SPECIES COMPOSITION OF MICROMYCETES ISOLATED FROM PLASTERBOARD].

Aim: To investigate the mycobiota of usual and water-resistant plasterboard of two types and to represent its ecological characteristic.

Methods: Microscopic fungi were iso- lated using the method of modeling effects of humid air and water on the plasterboard, and methods of serial dilutions and direct inoculation on agar nutrient media. Analysis of mycobiota of different types of plasterboard was conducted using the methods of quan- titative ecology.

[THE MYCOBIOTA IN STUDYING THE RESISTANCE OF GYPSUM PLASTERBOARD TO MICROSCOPIC FUNGI].

The resistance of two types of gypsum plasterboard: ordinary and water-resistant to microscopic fungi was studied. It was found that under conditions of high relative humidity and direct influence of water at constant temperature (29 ± 2) degrees C all samples of plasterboard were not resistant to fungi. Furthermore, the contaminating mycobiota of uninfected fragments of plasterboard was revealed under these conditions.