Preservation of viable flexibacteria at low temperatures.

  title={Preservation of viable flexibacteria at low temperatures.},
  author={Aurora Sanfilippo and Ralph A. Lewin},
  journal={Canadian journal of microbiology},
  volume={16 6},
Most of the 28 species (91 strains) of flexibacteria tested without additives survived after freezing in liquid nitrogen (−196 °C): they included all six Microscilla spp., all three Cytophaga spp., both of the Herpetosiphon spp. tested, Flexithrix dorotheae, and seven (most strains) of the eight species of Flexibacter spp. All but 2 of the 19 strains of Saprospira grandis, but neither of the two other tested species of Saprospira, survived freezing to −196° without additives.Incorporation of 10… 
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The preservation of bacteria and fungi on anhydrous silica gel: an assessment of survival over four years.
  • D. Trollope
  • Biology, Medicine
    The Journal of applied bacteriology
  • 1975
The preservation method of Perkins (1962) using suspensions in skim-milk was used to preserve 33 bacteria and 22 fungi on anhydrous silica gel, and the results support the use of a closed storage tube.
The Order Cytophagales (with Addenda on the Genera Herpetosiphon, Saprospira, and Flexithrix)
The Cytophagales are Gram-negative, rod-shaped, slender cells that are often rather delicate; in some cases the cells are very short, but more often they are quite long; many organisms of this group exhibit change in cell shape, which either leads to spherical resting cells (microcysts) or results in highly pleomorphic populations.
The Order Cytophagales
The Cytophagales appear to be distantly related to the Bacteroides group, and these two together comprise one of the main branches, perhaps a phylum, in the bacterial phylogenetic system.
Isolation, cultivation and characterization of flexibacteria.
SUMMARY: Eighty-five strains of aerobic microbes capable of gliding on solid substrata have been isolated from samples of marine and freshwater mud and sand collected in various localities around the
The Genus Saprospira
Gram-negative gliding bacteria that form helical, multicellular filaments are grouped in the genus Saprospira, moderately common but relatively difficult to isolate, and therefore have not been studied very well.
The Genus Herpetosiphon
The Herpetosiphon species are aerobic, chemoorganotrophic, filamentous bacteria that are Gram-negative but do not have a typical Gram-negative cell wall. The filaments are very long, unbranched, and
Inter-trophic Interaction of Gut Microbiota in a Tripartite System
The results may first show that seed-borne insects as hidden players have a potential to alter the gut microbiota of seed predators in the tripartite system and secondly show that T. arakawai showed higher capability to counter the negative effects of tannins.
Phylum XIV. Bacteroidetes phyl. nov.
Capitulo en el libro, Krieg, Noel R., et al. (eds.). Bergey's Manual of Systematic Bacteriology. Volume 4: The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres,
Filamentous organisms in activated sludge
Activated sludge, as an aerobic environment rich in organic matter, often provides the optimum conditions for the development of colourless filaments, which can be divided into three groups of basic characteristics: bacteria, cyanophyceae and fungi.