Introduction: Grain crops form the basis of food security in many regions, including Kuzbass. However, they face the threat of decreasing yields due to biotic stressors. An effective solution might be the use of endophytic microorganisms. Their interaction with plants, however, has not been sufficiently studied yet. Omics technology provides an opportunity to investigate these relationships in depth, leading to increased grain productivity. Purpose and Research Questions: Generalization and systematization of knowledge regarding endophytic microbes obtained through omics techniques.Materials and methods: A search was conducted from December 4 to 18, 2023, in the databases of Scopus, ScienceDirect, and GoogleScholar using keywords such as endophytes, endosphere, RNA, transcriptome, genes, wheat, barley, and oats. No time limit was set for the search. Out of 239 relevant publications, 62 were selected based on inclusion criteria. The subject field review was conducted using the PRISMA-ScR protocol.Results: As a result of the search, 62 sources were found dedicated to the study of endophytic behavior using modern molecular genetic research methods. The analysis revealed the following trends in the utilization of endophyte microorganisms: the development of microbial bio-stimulators for agricultural crops and the use as agents for biological control of plant diseases. These trends are consistent with earlier reviews on this subject area, but in contrast to previous studies, there is a focus on realizing the genetic potential of microbiota and exploring the possibilities of modernizing microbial genetic information.Conclusions: It is necessary to expand the scope of molecular genetic methods in the study of endophytic microorganisms, as their use as biocontrol agents could become a promising strategy for sustainable development in the agro-industry. Special attention should be paid to the investigation of the relationship between these microbes and cereals, as there is currently insufficient information available in the scientific literature on this subject.