The influence of microorganisms of the Arctic paleoecosystems on the morphometric parameters and the cytogenetic apparatus of Allium cepa

• Published in: BIO Web of Conferences
• Main Authors: Kastornov Aleksandr A., Subbotin Andrey M., Petrov Sergei A.
• Format: Article in Journal/Newspaper
• Language: English; French
• Published: EDP Sciences 2022
• Subjects: Microbiology; QR1-502; Physiology; QP1-981; Zoology; QL1-991; Arctic; permafrost
• Online Access: https://doi.org/10.1051/bioconf/20224303013; https://doaj.org/article/90b99abfb86140118d892deb62246c72

The experiment studies the influence of microorganisms of the genus Bacillus from dispersed soils, which passed into a frozen state during the Holocene period, on the morphometric parameters and differentiation of Allium cepa cells. During the experiment, it was found that bacteria of the genus Bacillus can change morphometric parameters (there is a delay in the growth of roots and shoots, their length and number decrease). The influence of the studied strains from frozen rocks is manifested at the cellular level, changing the mitosis of the cells of the meristematic root tissue of Allium cepa. It is expressed both in the mitosis-stimulating effect and in the limitation of the proliferative capacity of Allium cepa cells. Thus, the behaviour of microorganisms in the Arctic paleoecosystems in the environment, their use in the economy, agriculture, and medicine are promising and topical issues. In addition, the question of the influence of relict microbiota on modern biological objects and, first of all, on their cellular apparatus remains understudied. The study of permafrost microorganisms makes it possible to better understand the evolution of adaptive characteristics of modern biological objects to the cold and subsequently move on to the development of technologies pointed at using the adaptive potential of microorganisms.