FAMILY IV. PSEUDOMONADACEAE
93
- dd. Attack cellulose
- e. Acid produced in milk.
- dd. Attack cellulose
44. Pseudomonas tralucida.
- ee. Milk unchanged.
45. Pseudomonas lasia.
- cc. Grow readily at 25° C. but poorly or not at all at 37°C.
- d. Action on cellulose unknown or unreported.
- e. Alkaline reaction in milk. Attacks riboflavin converting it to lumichrome.
- d. Action on cellulose unknown or unreported.
- cc. Grow readily at 25° C. but poorly or not at all at 37°C.
46. Pseudomonas riboflavina.
- ee. Reaction in milk unknown or unreported.
- f. Nitrates reduced to elemental nitrogen.
- ee. Reaction in milk unknown or unreported.
47. Pseudomonas denitrificans.
- ff. Nitrates reduced to nitrites. Indole decomposed with formation of blue crystals of indigotin.
48. Pseudomonas indoloxidans.
- dd. Attacks cellulose.
49. Pseudomonas mira.
- B. Sea-water and brine forms (a few are pathogenic).
- 1. Produces pigments which are soluble in culture media. Gelatin liquefied.
50. Pseudomonas nigrifaciens.
- 2. Pigments soluble in culture media not produced.
- a. Gelatin liquefied.
- b. Polar flagellate.
- c. No growth in milk.
- d. Indole produced; nitrites produced from nitrates.
- c. No growth in milk.
- b. Polar flagellate.
- a. Gelatin liquefied.
- 2. Pigments soluble in culture media not produced.
51. Pseudomonas ichthyodermis.
- dd. Indole not produced; nitrites not produced from nitrates.
- e. Produces hydrogen sulfide and ammonia from tryptone: no acid from glucose.
- dd. Indole not produced; nitrites not produced from nitrates.
52. Pseudomonas marinoglutinosa.
- ee. Hydrogen sulfide not produced; glucose acidified.
53. Pseudomonas membranoformis.
- cc. Action in milk unknown or unreported.
- d. Digests agar.
- cc. Action in milk unknown or unreported.
54. Pseudomonas gelatica.
- dd. Do not digest agar.
- e. Deposit CaCO3 in sea-water gelatin and in agar media in old cultures. Do not grow in 12 to 30 per cent salt solutions.
- dd. Do not digest agar.
55. Pseudomonas calcis.
56. Pseudomonas calciprecipitans.
- ee. Does not deposit CaCO3 in sea-water gelatin or in agar media. Grows well in 12 to 30 per cent salt solutions.
56a. Pseudomonas halestorga.
- bb. Non-motile. Cellulose attacked. Insoluble yellow pigment produced.
57. Pseudomonas iridescens (gelatin-liquefying variety).
- aa. Gelatin not liquefied.
- b. Polar flagellate.
- c. Does not attack cellulose. Produces an insoluble purple pigment in vegetable extracts.
- b. Polar flagellate.
- aa. Gelatin not liquefied.
58. Pseudomonas beijerinckii.
