Paramecium caudatum abundance dynamics on various nutrient substrates consisting of Bacillus subtilis strains and their influence on morphophysiological indicators

Abstract

According to the results of the study, data on the dynamics of the number of ciliates on various substrates were obtained. The maximum abundance, after 14 days of cultivation, was detected on a substrate from Bacillus subtilis of a natural strain (88 pcs / ml), on a substrate of Bacillus subtilis 2335 the abundance was slightly lower (81 pcs / ml), the minimum abundance was recorded on a substrate of Sacharamices ellipsodes (68 pcs / ml) A difference in morphophysiological characteristics was revealed, using the example of the qualitative and quantitative composition of digestive vacuoles. Indirect evidence of the participation of glycocalyx mechanisms in the choice of food by infusoria is given.