FAMILY IV. PSEUDOMONADACEAE 



147 



Source : Isolated from a brown leaf spot of 

 iris. 



Habitat : Pathogenic on Iris tectorum and 

 Iris japo7iica. 



133. Pseudomonas levistici Oster- 

 walder, 1909. (Cent. f. Bakt., II Abt., 25, 

 1909, 260.) 



le.vis'ti.ci. L. neut.noun ligusticum a 

 Ligurian plant, lovage; L. neut.noun le- 

 visticum a corruption of ligusticum; M.L. 

 neut.noun Levisticum generic name of 

 lovage; M.L. gen. noun levistici of Levisti- 

 cum. 



Rods 0.5 to 0.7 by 1.1 to 1.5 microns. 

 Motile with a polar flagellum. Gram-nega- 

 tive. 



Gelatin: Colonies greenish white. Li- 

 quefied. 



Nutrient agar: Good growth at room 

 temperature. Yellowish white. 



Broth: Pellicle. 



Indole produced. 



Hydrogen sulfide not produced. 



Source : Isolated from spots on the leaves 

 of lovage. 



Habitat: Pathogenic on lovage, Levisti- 

 cum officinale. 



134. Pseudomonas niaublaucii (Foex 

 and Lansade, 1936) SHvulescu, 1947. {Bac- 

 terium maublancii Foex and Lansade, 

 Compt. rend. Acad. Sci., Paris, 202, 

 1936,2174; Savulescu, Anal. Acad. Romane, 

 III, 22, 1947, 11.) 



mau.blan'ci.i. Maublanc, patronymic; 

 M.L. gen. noun maublancii of Maublanc. 



Rods 0.4 by 1.3 microns. Motile with 1 

 to 3 polar flagella. Gram-negative. 



Gelatin: Liquefied. 



Gelatin colonies: Round, translucent, 

 margins entire. 



Broth: Thin pellicle. 



Milk: Not coagulated; clears. 



Nitrites not produced from nitrates. 



Indole not produced. 



Hydrogen sulfide not produced. 



Carbohydrates not fermented. 



Ammonia produced. 



Growth in Fermi's solution, not in Us- 

 chinsky's solution. 



Source: Isolated from rotting vascular 

 and parenchymatic tissue of banana stalks. 



Habitat: Causes a disease of the banana 

 plant. 



135. Pseudomonas polygoni (Thorn- 

 berry and Anderson, 1937) Burkholder, 

 1948. (Phytomonas polygoni Thornberry 

 and Anderson, Phytopath., 27, 1937, 947; 

 Burkholder, in Manual, 6th ed., 1948, 140.) 



po.ly'go.ni. Gr. polygonum knot weed; 

 M.L. neut.noun Polygonum generic name; 

 M.L. gen. noun polygoni of Polygonum. 



Rods 0.5 to 1.5 by 1.5 to 2.5 microns. 

 Motile with 2 to 8 bipolar flagella. Encap- 

 sulated. Gram-positive (?). Other species 

 reported by these investigators as Gram- 

 positive have proved to be Gram-negative 

 on a retest (Burkholder). 



Gelatin: Liquefied. Brown. 



Glucose agar slant: Abundant, filiform, 

 flat, dull, smooth, pale olive-gray, bvity- 

 rous. Medium turns brown. 



Broth: Turbid. Pellicle. 



Milk: Alkaline and clears. Litmus not re- 

 duced. 



Nitrites not produced from nitrates. 



Indole not produced. 



Hydrogen sulfide not produced. 



No appreciable amount of gas from car- 

 bohydrates. 



Starch: No hydrolysis. 



Temperature relations: Optimum, 18° C. 

 Minimum, 7° C. Maximum, 35° C. 



Aerobic. 



Source: From diseased leaves of Poly- 

 gomim convolvulus in Illinois. 



Habitat: Pathogenic on black bindweed, 

 Polygonum convolvulus. 



136. Pseudomonas radiciperda (Javo- 

 ronkova, 1932) Savulescu, 1947. (Bacterium 

 radiciperda Javoronkova, Bull. Plant Pro- 

 tect., Leningrad, Ser. II, 5, no. 1, 1932, 161; 

 savulescu. Anal. Acad. Romane, III, 22, 

 1947, 11.) 



ra.di.ci.per'da. L. radix, radicis root; L. 

 perdo to destroy; M.L. fem.noun radiciperda 

 the root destroyer. 



Description from Javoronkova (Rev. App. 

 Myc, 11, 1932, 652). 



Rods 0.8 by 1.0 to 2.0 microns. Encapsu- 

 lated. Motile by means of 1 or 2 polar fla- 

 gella. Gram-negative. 



Gelatin: Liquefied. 



