Abstract
Trichomes of two oscillatoriacean blue-green algae execute screw-like gliding motion, but the two organisms differ from each other with respect to the screw sense of motion. Electron microscopy of serial longitudinal sections reveals extracellular microfibrils which lie roughly parallel to stream-lines at the surface of each organism. The author proposes that the microfibrils are oriented by shear in a zone just external to the outer unit membrane-like component of the cell wall.
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- DREWS G., NIKLOWITZ W. Beitrage zur Cytologie der Blaualgen. II. Zentroplasma und granuläre Einschlüsse von Phormidium uncinatum. Arch Mikrobiol. 1956;24(2):147–162. [PubMed] [Google Scholar]
- De Petris S. Ultrastructure of the cell wall of Escherichia coli and chemical nature of its constituent layers. J Ultrastruct Res. 1967 Jul;19(1):45–83. doi: 10.1016/s0022-5320(67)80059-5. [DOI] [PubMed] [Google Scholar]
- FREI E., PRESTON R. D. NON-CELLULOSIC STRUCTURAL POLYSACCHARIDES IN ALGAL CELL WALLS I. XYLAN IN SIPHONEOUS GREEN ALGAE. Proc R Soc Lond B Biol Sci. 1964 Sep 29;160:293–313. doi: 10.1098/rspb.1964.0041. [DOI] [PubMed] [Google Scholar]
- FREI E., PRESTON R. D. NON-CELLULOSIC STRUCTURAL POLYSACCHARIDES IN ALGAL CELL WALLS. II. ASSOCIATION OF XYLAN AND MANNAN IN PORPHYRA UMBILICALIS. Proc R Soc Lond B Biol Sci. 1964 Sep 29;160:314–327. doi: 10.1098/rspb.1964.0042. [DOI] [PubMed] [Google Scholar]
- FREY-WYSSLING A., STECHER H. Uber den feinbau des Nostoc-schleimes. Z Zellforsch Mikrosk Anat. 1954;39(5):515–519. [PubMed] [Google Scholar]
- Frank H., Dekegel D. Zur Interpretation von Zellwandstrukturen in Dünnschnitten gram-negativer Bakterien. Zentralbl Bakteriol Orig. 1965 Dec;198(1):81–87. [PubMed] [Google Scholar]
- LUCAS F., SHAW J. T., SMITH S. G. The silk fibroins. Adv Protein Chem. 1958;13:107–242. doi: 10.1016/s0065-3233(08)60599-9. [DOI] [PubMed] [Google Scholar]
- LUFT J. H. Improvements in epoxy resin embedding methods. J Biophys Biochem Cytol. 1961 Feb;9:409–414. doi: 10.1083/jcb.9.2.409. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Leak L. V. Fine structure of the mucilaginous sheath of Anabaena sp. J Ultrastruct Res. 1967 Nov;21(1):61–74. doi: 10.1016/s0022-5320(67)80006-6. [DOI] [PubMed] [Google Scholar]
- METZNER I. Zur Chemie und zum submikroskopischen Aufbau der Zellwände, Scheiden und Gallerten von Cyanophyceen. II. Zellmorphologische und zellphysiologische Studien an Cyanophyceen. Arch Mikrobiol. 1955;22(1):45–77. [PubMed] [Google Scholar]
- MURRAY R. G., STEED P., ELSON H. E. THE LOCATION OF THE MUCOPEPTIDE IN SECTIONS OF THE CELL WALL OF ESCHERICHIA COLI AND OTHER GRAM-NEGATIVE BACTERIA. Can J Microbiol. 1965 Jun;11:547–560. doi: 10.1139/m65-072. [DOI] [PubMed] [Google Scholar]
- Moore B. G., Tischer R. G. Biosynthesis of extracellular polysaccharides by the blue-green alga Anabaena flos-aquae. Can J Microbiol. 1965 Dec;11(6):877–885. doi: 10.1139/m65-117. [DOI] [PubMed] [Google Scholar]
- PRINGSHEIM E. G. OSCILLATORIA AGARDHII VAR. SUSPENSA NOV. VAR. KLEINE MITTEILUNGEN UEBER FLAGELLATEN UND ALGEN. X. Arch Mikrobiol. 1965 Apr 12;50:401–413. doi: 10.1007/BF00509581. [DOI] [PubMed] [Google Scholar]
- PROBINE M. C., PRESTON R. D. Protoplasmic streaming and wall structure in Nitella. Nature. 1958 Dec 13;182(4650):1657–1658. doi: 10.1038/1821657a0. [DOI] [PubMed] [Google Scholar]
- Pringsheim E. G. THE RELATIONSHIP BETWEEN BACTERIA AND MYXOPHYCEAE. Bacteriol Rev. 1949 Jun;13(2):47–98. doi: 10.1128/br.13.2.47-98.1949. [DOI] [PMC free article] [PubMed] [Google Scholar]
- REYNOLDS E. S. The use of lead citrate at high pH as an electron-opaque stain in electron microscopy. J Cell Biol. 1963 Apr;17:208–212. doi: 10.1083/jcb.17.1.208. [DOI] [PMC free article] [PubMed] [Google Scholar]
- RIS H., SINGH R. N. Electron microscope studies on blue-green algae. J Biophys Biochem Cytol. 1961 Jan;9:63–80. doi: 10.1083/jcb.9.1.63. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SCHULZ G. Bewegungsstudien sowie elektronenmikroskopische Membranuntersuchungen an Cyanophyceen. Arch Mikrobiol. 1955;21(4):335–370. [PubMed] [Google Scholar]
- SHATKIN A. J. A chlorophyll-containing cell fraction from the blue-green alga, Anabaena variabilis. J Biophys Biochem Cytol. 1960 Jun;7:583–584. doi: 10.1083/jcb.7.3.583. [DOI] [PMC free article] [PubMed] [Google Scholar]
- STERLING C. Structure of oriented gels of calcium polyuronates. Biochim Biophys Acta. 1957 Oct;26(1):186–197. doi: 10.1016/0006-3002(57)90070-7. [DOI] [PubMed] [Google Scholar]
- WATSON M. L. Staining of tissue sections for electron microscopy with heavy metals. J Biophys Biochem Cytol. 1958 Jul 25;4(4):475–478. doi: 10.1083/jcb.4.4.475. [DOI] [PMC free article] [PubMed] [Google Scholar]