Ultrastructural organization of Alicyclobacillus tolerans strain K1T cells.
Arch Microbiol
; 185(1): 63-8, 2006 Mar.
Article
em En
| MEDLINE
| ID: mdl-16362286
ABSTRACT
Electron microscopy examinations of thin sections and freeze-fracture replicas revealed the specific ultrastructural features of Alicyclobacillus tolerans strain K1(T). In particular, the cell wall displayed an ultrastructure typical of gram-positive bacteria and consisted of a thin murein layer (50-60 A in thickness); cells exhibited a surface S-layer constituted by large hexagonally packed (p6-symmetry) rod-shaped subunits of 150-160 A in diameter and 200 A in height. In the cytoplasmic membrane, there were intramembrane vesicular structures that sometimes appeared as large leaflets in the central part. The cytoplasm contained numerous vesicular inclusions covered with a monolayered wall, dissimilar to bilamellar lipid membranes. Endospore coats displayed an intricate structure and consisted of three thick layers; the outer layer had an unusual fine structure; the exosporium was also found.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bacilos Gram-Positivos Formadores de Endosporo
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article