Contribution in an anthology

Appeared in: Bergey's Manual of Systematics of Archaea and Bacteria

Editor list: Whitman, WB

Publication year: 2018

eISBN: 978-1-118-96060-8

DOI Link: https://doi.org/10.1002/9781118960608.gbm00040.pub2

Abstract: 

Cryp.to.spo.ran'gi.um. Gr. adj. kryptos hidden; N.L. n. sporangium [from Gr. fem. n. spora a seed (and in biology a spore) and Gr. neut. n. angeion (Latin transliteration angium) vessel], sporangium; N.L. neut. n. Cryptosporangium an organism with sporangia (spore containing vessels) covered or hidden by mycelium.

Actinobacteria / Actinobacteria / Frankiales / Cryptosporangiaceae / Cryptosporangium

Gram-stain-positive, non-acid-fast, aerobic organisms with branching hyphae. Nonfragmentary substrate mycelia are present. The sporangia and aerial mycelia aggregate (Figure 1), and sporangiospores show motility when they are suspended in water. Morphology of a 2-week-old culture grown on inorganic salts-starch agar shows the presence of aerial mycelia. Strictly aerobic. Good growth occurs at 20–25°C. The organisms show good growth on oatmeal agar, inorganic salts-starch agar, and peptone-yeast extract iron agar. In general, the vegetative mycelia are yellow to orange, and the aerial mycelia are white. Cell walls contain glutamic acid, glucosamine, glycine, alanine, and meso-DAP. Glucose and acofriose (3-O-methyl-rhamnose) are detected as whole-cell sugars. Major cellular fatty acids are C_17:1, C_18:1, and C_16:0 iso. The major menaquinone is MK-9(H₆); small amounts of MK-9(H₄) and MK-9(H₈) are also present. Phosphatidylethanolamine and phosphatidylinositol are present as diagnostic phospholipids. The acyl type of the cell wall polysaccharides is acetyl (Tamura et al., 1998). Isolated from soil.

DNA G + C content (mol%): 70–76 (HPLC).

Type species: Cryptosporangium arvum Tamura, Hayakawa and Hatano 1998, 1003^VP.

Harvard Citation style: Kämpfer, P. and Glaeser, S. (2018) Cryptosporangium, in Whitman, W. (ed.) Bergey's Manual of Systematics of Archaea and Bacteria. Hoboken, NJ: Wiley. https://doi.org/10.1002/9781118960608.gbm00040.pub2

APA Citation style: Kämpfer, P., & Glaeser, S. (2018). Cryptosporangium. In Whitman, W. (Ed.), Bergey's Manual of Systematics of Archaea and Bacteria. Wiley. https://doi.org/10.1002/9781118960608.gbm00040.pub2