attacked: Sarcosiu, betain, hippuric acid, asparagine, propionamid, capronamid, lactainid, succinamid, allantoin and uric acid.
Glucose fermented.
Catalase produced.
Aerobic, facultative.
Optimum temperature, 30° C.
Habitat: Soil and water.
Genus IX. Alginomonas Thjøtta and Kåss, 1945.[1]
(Thjøtta and Kåss, Norske Videnskaps-Akad., Oslo, I Mat.- Naturv. Klasse, No. 5, 1945, 17; also see lass. Lid and MoUand, ibid., No. 11, 1945, 8.)
Al.gi.no.mo'nas. L. fem.n. alga seaweed; M.L. adj. alginicus pertaining to alginic acid from seaweed; Gr. noun nionas a unit, monad; M.L. fem.n. Alginomonas alginic-acid (-decomposing) monad.
Coccoid rods which are motile with one to four polar fiagella. Gram-negative. Fluorescent. Gelatin is usually liquefied. Carbohydrates are not utilized. Citric acid is not used as a sole source of carbon. Alginic acid is decomposed. Found on algae and in sea water and soil.
As the type of flagellation has not been determined for all of the species here included in the genus, it may be found later that some of these species do not belong in Alginomonas as here defined.
The type species is Alginomonas nonjermentans Kåss et al.
Key to the species of genus Alginomonas.
I. Gelatin is liquefied.
- A. Grow on potato.
- 1. Gray to grayish brown growth on potato.
1. Alginomonas nonjermentans.
- 2. Pinkish or ivory-colored growth on potato.
- a. Pink growth on potato.
2. Alginomonas terrestralginica.
- aa. Ivory-colored growth on potato.
3. Alginomonas alginovora.
- B. No growth on potato.
4. Alginomonas fucicola.
II. Gelatin not liquefied in seven days.
5. Alginomonas alginica.
1. Alginomonas nonfermentans Kåss et al., 1945. (Kåss, Lid and Molland, Norske Videnskaps-Akad., Oslo, 1 Mat. -Naturv. Klasse, No. 11, 1945, 9.)
non.fer.men'tans. L. prefix non- not, non-; L. v. fermento to ferment; M.L. part. adj. nonfermentans non-fermenting.
Small, coccoid rods. Motile with one to four polar fiagella. Gram-negative.
Good growth on ordinary media.
Gelatin: Liquefaction.
Agar colonies: Smooth, fluorescent.
Broth: Turbid; sediment; no pellicle.
Litmus milk: Coagulated; peptonized; reduced.
Potato: Abundant, grayish brown growth.
Indole not produced.
Hydrogen sulfide is produced.
Alginic acid is decomposed without the production of acid or gas.
Carbohydrates are not utilized.
Critic acid cannot be used as a sole source of carbon
Nitrites produced from nitrates.
Aerobic.
Grows at 37° C.
Chemical tolerance: No growth at pH 9.6.
- ↑ Prepared by Prof. Th. Thjtta, Microbiological Institute, University of Oslo, Oslo, Norway, January, 1955.
