FAMILY PSEUDOMONADACEAE 



169 



Mycol. Soc, 26, 1943, 12.) From Gr. 

 oryza, rice; M. L. Oryza, a generic name. 



Probable synonym : Pseudomonas ito- 

 ana Tochinai, Ann. Phytopath. Soc. 

 .Japan, 2, 19.32, 456; Bacterium itoanum 

 Burgwitz, Phytopathogenic Bacteria, 

 Leningrad, 1935, 74; Phytomonas itoana 

 Magrou, in Hauduroy et al.. Diet. d. 

 Bact. Path., Paris, 1937, 370. 



Rods: 0.5 to 0.8 by 1.0 to 2.0 microns. 

 Motile with a polar flagellum. Gram- 

 negative. 



Gelatin: No liquefaction. 



Nutrient agar colonies : Round, smooth, 

 glistening, wax yellow. 



Milk: Slightly acid. 



Nitrites are not produced from nitrates. 



Hydrogen sulfide produced. 



Acid but no gas from glucose, lactose 

 and sucrose. 



Optimum temperature 26° to 30°C. 



Strict aerobe. 



Source : Isolated from a leaf blight of 

 rice. 



Habitat : Pathogenic on rice, Oryza 

 saliva. 



40. Xanthomonas celebensis (Gau- 

 mann) Dowson. {Pseudomonas celeben- 

 sis Gaumann, Ztschr. f. Pflanzenkrank., 

 S3, 1923, 11; Meded. Inst, voor Planten- 

 ziek., Buitenzorg, 59, 1923, 17; Bacterium 

 celebense Elliott, Man. Bact. Plant Path., 

 1930, 108; Phytomonas celebensis Magrou, 

 in Hauduroy et al., Diet. d. Bact. Path., 

 Paris, 1937, 343; Dowson, Trans. Brit. 

 Mycol. Soc, 26, 1943, 11.) From M. L. 

 of the island Celebes. 



Rods : 0.9 by 1.5 microns. Motile by a 

 polar flagellum. Gram -negative. 



Agar colonies: Grayish yellow. 



Broth: Thin pellicle. 



Milk: Coagulated and cleared. 



Nitrites not produced from nitrates. 



Sodium selenite: Brick red. 



Starch is hydrolyzed. 



Source : From vascular bundles of 

 diseased bananas in Celebes. 



Habitat : Causes the blood disease of 

 banana. 



41. Xanthomonas panici (Elliott) 

 comb. nov. {Bacterium panici Elliott, 

 Jour. Agr. Res., 26, 1923, 157; Pseudo- 

 monas panici Stapp, in Sorauer, Handb. 

 d. Pflanzenkrank., 2, 5 Aufl., 1928, 27; 

 Phytomonas panici Bergey et al., Man- 

 ual, 3rd ed., 1930, 269.) From M. L. 

 Panicum, a generic name. 



Rods : 0.69 by 1.66 microns. Capsules. 

 Motile by 1 or rarely 2 polar flagella. 

 Gram-negative. 



Gelatin : Liquefaction slow. 



Beef agar colonies: Round, white, 

 smooth, glistening, margins at first entire, 

 later undulate. 



Broth : Moderate turbidity in 24 hours. 

 Thin pellicle. Medium brownish. 



Milk: Alkaline and clears. 



Nitrites are produced from nitrates. 



Indole not produced. 



Hydrogen sulfide produced. 



No gas from carbohydrates. 



Starch: Hydrolysis moderate. 



Optimum temperature 33°C. Maxi- 

 mum 45°C. Minimum 5°C. 



Optimum pH 6.15 to 6.3. pH range 

 5.4 to 10.0. 



Aerobic. 



Distinctive characters : Differs from 

 Pseudomonas andropogoni in that it 

 liquefies gelatin, produces nitrites from 

 nitrates, and does not infect sorghum and 

 broom corn. 



Source : Isolation from water soaked 

 lesions on leaves, sheaths and culms of 

 millet collected in Wisconsin and in S. 

 Dakota. 



Habitat : Pathogenic on proso millet, 

 Panicum m.iliaceum, 



42. Xanthomonas proteamaculans 

 (Paine and Stansfield) comb. nov. {Pseu- 

 domonas proteamacidans Paine and Stans- 

 field, Ann. Appl. Biol., 6, 1919, 38; 

 Phytomonas proteamacidans Bergey et 

 al.. Manual, 3rd ed., 1930, 247; Bacterium 

 proteamacidans Elliott, Man. Bact. Plant 

 Path., 1930, 186.) From M. L. Protea, 

 a generic name; maculans, spotting. 



Rods : 0.6 to 0.8 by 0.8 to 1.6 microns. 



