146 



ORDER I. PSEUDOMONADALES 



adonitol in a 1 per cent Bacto-peptone 

 broth. 



Starch: Very weak diastatic action. 



Temperature relations: Optimum, 35° C. 

 Minimum, 4° C. Maximum between 37° and 

 38° C. Thermal death point between 52° and 

 53° C. 



Aerobic. 



Growth retarded in 2 per cent salt. Very 

 slight growth in 3 per cent salt. 



Source: From diseased broad beans at 

 Nanking, China. 



Habitat : Pathogenic on broad or Windsor 

 bean, Vicia faba. 



130. Pseudomonas astragali (Taki- 

 moto, 1930) Savulescu, 1947. {Bacterium 

 astragali Takimoto, Jour. Plant Protect., 

 17, 1930, 732; SSvulescu, Anal. Acad. Ro- 

 mane. III, ££, 1947, 11.) 



as.tra'ga.li. Gr. astragalus a vertebra, 

 also a leguminous plant; M.L. mas. noun 

 Astragalus a generic name; M.L. gen. noun 

 astragali of Astragalus. 



Description translated by Dr. K. To- 

 gashi. 



Rods 0.7 to 0.8 by 1.2 to 2.2 microns. 

 Motile, with 1 or 2 flagella. Gram-negative. 



Gelatin: Liquefied. 



Agar plates: Growth somewhat slow, 

 colorless or grayish white, entire margins, 

 more or less aqueous, butyrous. 



Uschinsky's medium: Growth vigorous, 

 turbid, not viscid; ring and sediment. 



Milk: No coagulation of casein, slow di- 

 gestion. Alkaline. 



Nitrites not produced from nitrates. 



Indole not produced. 



Hydrogen sulfide produced in small 

 amount. 



No acid or gas from glucose, sucrose, 

 lactose or glycerol in broth. 



Starch not hydrolyzed. 



Temperature relations: Minimum, below 

 5° C. Maximum, 33° C. Thermal death 

 point between 50° and 51° C. 



Aerobic. 



Source: Species isolated from Astragalus 

 sp. 



Habitat: Causes a black leaf -spot of 

 Astragalus sp. 



131. Psevidomonas colurnae (Thorn- 



berry and Anderson, 1937) Burkholder, 

 1948. {Phytomonas colurnae Thornberry and 

 Anderson, Phytopath., 37, 1937, 948; Burk- 

 holder, in Manual, 6th ed., 1948, 139.) 



co.lur'nae. L. fem.noun corylus the hazel 

 or filbert; L. adj. colurnus (transposition of 

 corulnus) pertaining to hazel. 



Rods 0.8 to 1.0 by 1.0 to 1.8 microns. 

 Single, in pairs or chains. Encapsulated. 

 Motile with 1 to 2 polar flagella. Gram- 

 negative. 



Gelatin: Liquefied. 



Glucose agar slants: Growth filiform, 

 raised, dull, smooth, opaque and viscid. 



Broth: Moderate turbidity. Ring. 



Milk: Peptonization complete with acid 

 production. No reduction of litmus nor 

 coagulation. 



Nitrites not produced from nitrates. 



Indole not produced. 



Hydrogen sulfide not produced. 



No appreciable amount of gas from 

 xylose, glucose, sucrose or glycerol. 



Starch hydrolyzed. 



Temperature relations: Optimum, 21° C. 

 Minimum, 5° C. Maximum, 35° C. Thermal 

 death point, 50° C. 



Aerobic. 



Source: From leaves and young stems of 

 the Turkish hazelnut in Illinois. 



Habitat: Pathogenic on the Turkish 

 hazelnut, Corylus colurna. 



132. Pseudomonas iridicola (Taki- 

 moto, 1931) Stapp, 1935. {Bacterium iridicola 

 Takimoto, Fungi, Nippon Fungological 

 Soc, 1, 1931, 24; Stapp, Bot. Rev., 1, 1935, 

 408.) 



i.ri.di'co.la. Gr. iris, iridis the rainbow, 

 the plant iris; M.L. fem.noun 7ns generic 

 name; L. -cola dweller; M.L. fem.noun 

 iridicola iris dweller. 



Rods 0.7 to 0.8 by 1.2 to 2 microns. 

 Motile with 1 to 3 polar flagella. Gram- 

 negative. 



Gelatin: Liquefied. 



Beef agar colonies: White, circular, 

 raised or convex. 



Milk: Clears without coagulation. 



No acid or gas from carbohydrates. 



Starch digested. 



Temperature relations: Optimum, 38° C. 

 Minimum, 4° C. 



