Morphotype V of theBlastocaulis-Planctomyces group of budding and appendaged bacteria:Planctomyces guttaeformis Hortobágyi (sensu Hajdu)

@article{Schmidt2007MorphotypeVO,
  title={Morphotype V of theBlastocaulis-Planctomyces group of budding and appendaged bacteria:Planctomyces guttaeformis Hortob{\'a}gyi (sensu Hajdu)},
  author={Jean M. Schmidt and Mortimer P. Starr},
  journal={Current Microbiology},
  year={2007},
  volume={2},
  pages={195-200}
}
The ultrastructure of a budding and appendaged bacterium resemblingPlanctomyces guttaeformis Hortobágyi (sensu Hajdu) was examined by transmission electron microscopy in negative-contrast and thin-section preparations from samples of pond and lake water in which natural blooms of this organism had occurred. Its prokaryotic nature was established, and observations were reported regarding its characteristic bulbiform or bulbose cell shape (cylindrical with one globose or swollen end), budding… 

Life cycle of a budding and appendaged bacterium belonging to morphotype IV of theBlastocaulis-Planctomyces group

TLDR
Transmission electron microscopy was employed to determine ultrastructural details regarding the single ensheathed flagellum, the polarly distributed crateriform structures and numerous pili, the excreted holdfast, the multifibrillar major appendage (a fascicle), and daughter cell (bud) formation.

Manganese and iron encrustations and other features ofPlanctomyces crassus Hortobágyi 1965, morphotype Ib of theBlastocaulis-Planctomyces group of budding and appendaged bacteria, examined by electron microscopy and X-ray micro-analysis

Water samples collected in August, 1980, from a pond in Budapest, Hungary, have permitted transmission and scanning electron microscopic observations to be made ofPlanctomyces crassus Hortobágyi

Corniculate Cell surface protrusions in morphotype II of theBlastocaulis-Planctomyces group of budding and appendaged bacteria

TLDR
Natural water samples and dilute-peptone enrichment cultures, containing budding and appendaged bacteria assigned to morphotype II of the Blastocaulis-Planctomyces group of nonprosthecately stalked prokaryotes, have been examined by transmission electron microscopy, finding unusual corniculate structures that protruded at seemingly the same loci.

Some ultrastructural features ofPlanctomyces bekefii, morphotype I of theBlastocaulis-Planctomyces group of budding and appendaged bacteria

TLDR
The ultrastructure ofPlanctomyces bekefii, a budding and appendaged bacterium, has been examined using samples obtained directly from pond water, its natural habitat, and its major appendage, the nonprosthecate stalk, is shown to have a tubular structure, with a substructure of hollow fibers.

Metallic-Oxide encrustations of the nonprosthecate stalks of naturally occurring populations ofPlanctomyces bekefii

TLDR
Naturally occurring metallic-oxide encrustations of the multifibrillar stalks of morphotype Ia of the Blastocaulis-Planctomyces group of budding and nonprosthecately appendaged prokaryotes from two sources-a pond in Budapest, Hungary and Gebharts Teich, a fishpond in Austria-are examined by energy-dispersive X-ray spectroscopy.

History, Classification and Cultivation of the Planctomycetes

TLDR
The history of the planctomycetes is traced from their initial discovery as planktonic microcolonies in lake water, to their recognition as an evolutionarily diverse phylum encompassing three classes with a vast array of unique and unusual features.

Current sightings, at the respective type localities and elsewhere, ofPlanctomyces bekefii Gimesi 1924 andBlastocaulis sphaerica Henrici and Johnson 1935

TLDR
AlthoughPlanctomyces bekefii was originally described as a fungus, both organisms are seen by transmission electron microscopy to be budding and nonprosthecately appendaged prokaryotes, insofar as identity can be demonstrated for such presently noncultivable bacteria solely by microscopic observations.

Antibiotic susceptibility of marine Planctomycetes

TLDR
It was showed that antibiotics which target protein synthesis or DNA replication, with the exception of aminoglycosides, were the most effective against the tested strains, and the highest efficacy was observed for chloramphenicol, clindamycin and ciprofloxacin.

Phylum XXV. Planctomycetes Garrity and Holt 2001, 137 emend. Ward (this volume)

The phylum Planctomycetes was circumscribed for this volume on the basis of phylogenetic analysis of 16S rRNA gene sequences; the phylum contains the class Planctomycetia.

References

SHOWING 1-10 OF 15 REFERENCES

Morphological diversity of freshwater bacteria belonging to theBlastocaulis-planctomyces group as observed in natural populations and enrichments

The nonprosthecate, stalked, budding, aquatic bacteria presently thought to belong to theBlastocaulis-Planctomyces group are morphologically quite diverse—as can be seen in high resolution

Isolation and ultrastructure of freshwater strains ofPlanctomyces

Four strains of a freshwaterPlanctomyces species—different in a number of respects from those hitherto described—have been isolated and their morphology and ultrastructure examined by transmission

L-Forms of Pseudomonas aeruginosa

L-forms of a strain of Pseudomonas aeruginosa were produced by serial subculture of the bacterial form on agar medium containing sucrose as an osmotic stabilizer and carbenicillin. L-forms eventually

Neue Planctomyces-Arten.] Botanikai Krzlemenyek. 52:111-115. [In Hungarian, with German rrsume

  • 1965

Observations on the bacterium species Planctomyces guttaeJbrmis Hortob. (Caulobacteriales). Archiv for Hydrobiologie 74:172-185

  • 1974

New aquatic budding and prosthecate bacteria and their taxonomic position, pp. 107-133

  • 1977

New aquatic budding and prosthecate bacteria and their taxonomic position

  • 1977

Electron microscope examinations made on microorganisms offishponds

  • Mikroskopie . Zentralblatt ftir Mikroskopische Forschung und Methodik
  • 1973

Genus Planctomyces, pp. 162-163

  • Bergey's manual of determinative bacteriology,
  • 1974

Electron microscope examinations made on microorganisms offishponds. Mikroskopie. Zentralblatt ftir Mikroskopische Forschung und Methodik 29:49

  • 1973