Permeability of dormant spores of Bacillus subtilis to gramicidin S. 1996

Y Tanimoto, and Y Ichikawa, and Y Yasuda, and K Tochikubo
Department of Microbiology, Nagoya City University Medical School, Japan.

Gramicidin S, dissolved in ethanol, penetrated into the inside of the dormant spores of Bacillus subtilis, had a partial inhibitory effect on L-alanine-initiated germination and completely inhibited their outgrowth and vegetative growth. The activity of particulate NADH oxidase of the antibiotic-treated dormant spores was also influenced significantly. Abnormal morphological changes were observed in germinated spores from gramicidin S-treated dormant spores. An immunoelectron microscopy method with colloidal gold-IgG complex showed that the penetration site of gramicidin S inside dormant spores was mainly the core region. These facts suggest that gramicidin S induces the damage of not only the outer membrane-spore coat complex but also the inner membrane surrounding the spore protoplast, and is able to penetrate into the core region of B. subtilis dormant spores.

UI MeSH Term Description Entries
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D010539 Permeability Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions. Permeabilities
D002455 Cell Division The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION. M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D006096 Gramicidin A group of peptide antibiotics from BACILLUS brevis. Gramicidin C or S is a cyclic, ten-amino acid polypeptide and gramicidins A, B, D are linear. Gramicidin is one of the two principal components of TYROTHRICIN. Gramicidin A,Gramicidin A(1),Gramicidin B,Gramicidin C,Gramicidin D,Gramicidin Dubos,Gramicidin J,Gramicidin K,Gramicidin NF,Gramicidin P,Gramicidin S,Gramicidins,Gramoderm,Linear Gramicidin,Gramicidin, Linear
D000409 Alanine A non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases IMMUNITY, and provides energy for muscle tissue, BRAIN, and the CENTRAL NERVOUS SYSTEM. Abufène,Alanine, L-Isomer,L-Alanine,Alanine, L Isomer,L Alanine,L-Isomer Alanine
D001412 Bacillus subtilis A species of gram-positive bacteria that is a common soil and water saprophyte. Natto Bacteria,Bacillus subtilis (natto),Bacillus subtilis subsp. natto,Bacillus subtilis var. natto
D013171 Spores, Bacterial Heat and stain resistant, metabolically inactive bodies formed within the vegetative cells of bacteria of the genera Bacillus and Clostridium. Bacterial Spores,Bacterial Spore,Spore, Bacterial
D048429 Cell Size The quantity of volume or surface area of CELLS. Cell Volume,Cell Sizes,Cell Volumes,Size, Cell,Sizes, Cell,Volume, Cell,Volumes, Cell
D019069 Cell Respiration The metabolic process of all living cells (animal and plant) in which oxygen is used to provide a source of energy for the cell. Cellular Respiration,Respiration, Cell,Cell Respirations,Cellular Respirations,Respiration, Cellular

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