28, 1934, 213; Kåss, Lid and Molland, Norske Videnskaps-Akad., Oslo, I Mat.-Naturv. Klasse, No. 11, 1945, 9.)
fu.ci'co.la. L. mas.n./ fucus a seaweed; M. L. noun Fucus a genus of brown seaweeds; L.v. colo to inhabit; M.L. noun fucicola the Fucus dweller.
Short rods, 0.6 to 1.0 by 1.0 to 1.5 microns, with ends rounded to almost coccoid; slightly curved. Actively motile with twirling motion. Gram-negative.
Alginic acid plate : Colonies finely granular, entire; at first whitish, turning brown in three to five days, and later almost black, producing a deep brown, soluble pigment.
Alginic acid liquid medium: Limited growth on surface in the form of a pellicle. Frequently produces no growth at all.
Sea-water gelatin: Active liquefaction; no growth on stab; thin, fluorescent growth throughout liquefied zone.
Agar liquefaction: Positive, although limited; only softening of agar.
Sea-water glucose broth: Faint turbidity; no pellicle; no sediment.
Litmus milk containing salt: No apparent growth.
Potato moistened with sea water: No growth.
Starch plate: No growth.
Aerobic.
Optimum temperature, 20° C.
Source : Isolated from sea water near the surface of the sand bottom.
Habitat: Rare in sea water.
5. Alginomonas alginica (Waksman et al., 1934) Kåss et al., 1945. (Bacterium alginicum Waksman, Carey and Allen, Jour. Bact., 28, 1934, 213; Kåss, Lid and Molland, Norske Videnskaps-Akad., Oslo, I Mat.Naturv. Klasse, No. 11, 1945, 9.)
al.gi'ni.ca. L. fem.n. alga seaweed; M.L. adj. alginicus pertaining to alginic acid from seaweed.
Rods short to almost spherical, 0.6 to 1.0 micron in diameter. Encapsulated. Sluggishly motile. Gram-negative.
Alginic acid plate: White, finely granulated colonies with entire margin. Does not clear up the turbidity in plate. Odor produced resembles that of old potatoes.
Alginic acid liquid medium: Thin pellicle; weak alginase formation.
Sea-water gelatin: Thin growth throughout gelatin stab; no liquefaction in 7 days at 18° C.
Agar liquefaction: None.
Sea-water glucose broth: Uniform but very limited turbidity; no pellicle; no sediment.
Litmus milk containing salt: No apparent growth.
Potato moistened with sea water: Moist, spreading, cream-colored growth; heavy sediment in free liquid at bottom.
Starch plate: Limited, pale blue growth; no diastase.
Aerobic.
Optimum temperature, 20° C.
Source: Isolated from sea water and from the surface of algal growth.
Habitat: Common in sea water.
Genus X. Mycoplana Gray and Thornton, 1928.[1]
(Cent. f. Bakt., II Abt., 73, 1928, 82.)
My.co.pla'na. Gr. myces fungus; Gr. planus a wandering; M.L. fem.n. Mycoplana fungus wanderer.
Cells branching, especially in young cultures. Frequently banded when stained. Polar flagellate.[2] Capable of using phenol or similar aromatic compounds as a sole source of energy. Grow well on standard culture media. From soil.
The type species is Mycoplana diniorpha Gray and Thornton.
