Биология

The content of neurotrophic factors in damaged somatic nerves under the action of the drug «Semax» was studied and their role in the regulation of regenerative processes in injured nerve conductors was established. It has been shown that intramuscular administration of the drug is accompanied by a signifi cant increase in the level of NGF and NT-3 both in the proximal and distal parts of the nerve. At the same time, there are no signifi cant changes in the quantitative content of neuroregulin-1 against the background of its use.

A common problem of agriculture is damage from infectious plant diseases caused mainly by plant-pathogenic Alternaria, Helminthosporium, Cladosporium, and Fusarium. Fusariosis is a harmful, widespread worldwide disease caused by Fusarium species, which leads not only to a decrease in yield but also to a deterioration in its quality as a result of the accumulation of mycotoxin waste products of fungi that are hazardous to human and animal health. Biocontrol is an environm entally friendly approach to using microorganisms to control plant diseases.

The taxonomy of scorpions belonging to the genus Mesobuthus has undergone signifi cant revisions in recent times. Initially, based on the morphological characteristics, scientists identifi ed and described a considerable number of subspecies within diff erent species of this genus. However, in the last decade, modern researchers have “revised” the species diversity of the genus based on the results of genetic and morphological analyses, forming new separate species complexes.

The issue of water treatment of the central water supply, as well as wastewater, from excessive content of heavy metals (HMs) remains relevant at the present time. The presence of heavy metals, even in trace amounts, has a negative impact not only on the environment, but also on all human organic systems. At the moment, iron and manganese are among the main pollutants entering the human body via drinking water.

The introduction of the genetic material of wild-growing species into the genome of cultivated plants can signifi cantly expand the diversity of breeding material. For the eff ective use of introgressive plants, it is necessary to study their economically valuable traits and adaptive capabilities. The objective of the work is to study the eff ect of two types of salinity on the morphogenesis of seedlings of introgressive lines of spring bread wheat containing the genetic material of Aegilops columnaris Zhuk.