Abstract:Changes in the lipid composition in bacterial membranes are considered to be the most important adaptation mechanisms to adverse chemical factors. The aim of the study was to compare the hexachlorobenzene effects on the fatty acid composition of total lipids Comamonas testosteroni. Methods. The study was performed with C. testosteroni UCM B-400 and B-401, B-213 strains. Bacteria were grown in the Luria-Bertrani (LB) liquid medium containing 10 and 20 mg/L of hexachlorobenzene (HCB). After cultivation, the biom… Show more
“…Th e lipid composition of bacterial membranes is an important component that plays a significant role in the adaptation of microorganisms to adverse living conditions (Dimova & Iutynska, 2022). Th e study of the fatty acid composition of the microbial preparation Sporazyn revealed the highest content of unsaturated fatty acids (67.47%), while the ratio of saturated to unsaturated was 0.48 (Fig.…”
Orientation of agricultural production to ecological expediency leads to interest in the use of microbial preparations that are able to increase the resistance of plants to negative environmental factors and activate germination processes. This study was conducted with the aim to investigate the influence of a microbiological complex on the sowing properties of seeds and the fatty acid composition of seedlings of different breeding samples of corn. Methods. Corn seeds of two lines 1-Ak026 and 2-Ak033 and their simple interline hybrid, which is the parent component of the three-line hybrid NUBiSe included in the State Register of plant varieties suitable for distribution in Ukraine, were used for the research. Seed inoculation was carried out with a microbial complex, which contained biological preparations Sporazyn, Avercom, and Phytovit. Seedlings from the seeds of the corresponding corn samples not treated with the microbial complex served as controls. The fatty acid composition of lipids was determined in the biological material of corn seedlings of different variants of the experiment. The Folch method was used to extract fats from plant material. Hydrolysis and methylation of fatty acids of lipids obtained from corn seedlings was carried out according to DSTU ISO 5509-2002. Fatty acids were detected and identified by gas chromatography. The quantity of fatty acids was calculated by the method of internal normalization in percentages. Results. The influence of the microbiological complex on the quantitative and qualitative composition of fatty acids of the lipid complex of corn seedlings was established, which depended on the breeding sample. In the process of research, 22 fatty acids were detected and quantitatively identified in corn seedlings. In the seedlings of lines 1-Ak033 and 2-Ak033, 20 and 19 of them were found, respectively, and in the hybrid – 18. The highest percentage content (more than 90 %) was revealed for palmitic (C16:0), oleic (C18:1n9c), and linoleic (C18:2ω6c) fatty acids. The use of the microbial complex made it possible to detect the fatty acids in line 1 and the hybrid that were not detected in the samples without inoculation. Conclusions. The study of the fatty acid composition of the microbial preparation Sporazyn revealed the highest content of unsaturated fatty acids (67.47 %) and the ratio of saturated to unsaturated (0.48). The use of microbiological preparations on corn seeds increased the activity of the germination processes, which led to the improvement of sowing properties and changes in the fatty acid composition of the lipid complex of seedlings of various breeding forms of Zea mays.
“…Th e lipid composition of bacterial membranes is an important component that plays a significant role in the adaptation of microorganisms to adverse living conditions (Dimova & Iutynska, 2022). Th e study of the fatty acid composition of the microbial preparation Sporazyn revealed the highest content of unsaturated fatty acids (67.47%), while the ratio of saturated to unsaturated was 0.48 (Fig.…”
Orientation of agricultural production to ecological expediency leads to interest in the use of microbial preparations that are able to increase the resistance of plants to negative environmental factors and activate germination processes. This study was conducted with the aim to investigate the influence of a microbiological complex on the sowing properties of seeds and the fatty acid composition of seedlings of different breeding samples of corn. Methods. Corn seeds of two lines 1-Ak026 and 2-Ak033 and their simple interline hybrid, which is the parent component of the three-line hybrid NUBiSe included in the State Register of plant varieties suitable for distribution in Ukraine, were used for the research. Seed inoculation was carried out with a microbial complex, which contained biological preparations Sporazyn, Avercom, and Phytovit. Seedlings from the seeds of the corresponding corn samples not treated with the microbial complex served as controls. The fatty acid composition of lipids was determined in the biological material of corn seedlings of different variants of the experiment. The Folch method was used to extract fats from plant material. Hydrolysis and methylation of fatty acids of lipids obtained from corn seedlings was carried out according to DSTU ISO 5509-2002. Fatty acids were detected and identified by gas chromatography. The quantity of fatty acids was calculated by the method of internal normalization in percentages. Results. The influence of the microbiological complex on the quantitative and qualitative composition of fatty acids of the lipid complex of corn seedlings was established, which depended on the breeding sample. In the process of research, 22 fatty acids were detected and quantitatively identified in corn seedlings. In the seedlings of lines 1-Ak033 and 2-Ak033, 20 and 19 of them were found, respectively, and in the hybrid – 18. The highest percentage content (more than 90 %) was revealed for palmitic (C16:0), oleic (C18:1n9c), and linoleic (C18:2ω6c) fatty acids. The use of the microbial complex made it possible to detect the fatty acids in line 1 and the hybrid that were not detected in the samples without inoculation. Conclusions. The study of the fatty acid composition of the microbial preparation Sporazyn revealed the highest content of unsaturated fatty acids (67.47 %) and the ratio of saturated to unsaturated (0.48). The use of microbiological preparations on corn seeds increased the activity of the germination processes, which led to the improvement of sowing properties and changes in the fatty acid composition of the lipid complex of seedlings of various breeding forms of Zea mays.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.