FAMILY IV. PSEUDOMONADACEAE 



131 



tose, sucrose, raffinose, starch, salicin or 

 tartaric acid (Mushin). 



Temperature relations : Optimum, between 

 20° and 24° C. Minimum, below 0° C. Maxi- 

 mum, 38.5° C. (Mushin). 



Limits of growth in broth are pH 4.4 to 

 pH 9.5 (Mushin). 



Aerobic. 



Source: Isolated from vascular and 

 parenchymatic disease of stocks, Matthiola 

 incana var. annua. 



Habitat: Pathogenic on stocks. 



86. Pseudonionas inorsprunoruin Wor- 



mald, 1931. {Pseudomonas mors-pnmorum 

 (sic) Wormald, Jour. Pom. and Hort. Sci., 

 9, 1931, 251.) 



mors'pru.no.rum. L. mors death; L. 

 prunus plum; M.L. fem.noun morspruno- 

 rum plum death. 



Rods. Motile with a polar flagellum. 

 Gram-positive (1931). Gram-negative 

 (1932). 



Gelatin: Liquefied. 



Agar colonies: White. 



Broth plus 5 per cent sucrose : White and 

 cloudy. 



Nitrites not produced from nitrates. 



Acid but no gas from glucose, lactose, 

 sucrose and glycerol. 



Starch not hydrolyzed. 



Strict aerobe. 



Comment: Possibly a green fluorescent 

 organism since it produces a faint yellow 

 color in Uschinsky's solution. 



Distinctive characters: Differs from 

 Pseudomonas prunicola (Pseudomonas syrin- 

 gae) in that it produces a white cloudy 

 growth in broth plus 5 per cent sucrose, a 

 rapid acid production in nutrient agar plus 

 5 per cent sucrose, and a faint yellow or no 

 color in Uschinsky's solution. 



Source: Isolated from cankers on plum 

 trees in England. 



Habitat: Pathogenic on Prunus spp. 



87. Pseudomonas papulans Rose, 1917. 

 (Phytopath., 7, 1917, 198.) 



pa'pu.lans. L. v. papulo to produce pus- 

 tules; L. part. adj. papulans producing 

 pustules. 



Rods 0.8 by 0.8 to 2.5 microns. Motile 

 with 1 to 6 polar flagella. Gram-negative. 



Green, fluorescent pigment produced in 

 various media. 



Gelatin: Liquefied. 



Broth: Turbid with pellicle. 



Fermi's and Uschinsky's solutions: Good 

 growth. 



Milk: Litmus reduced; no acid. 



Nitrites not produced from nitrates. Ni- 

 trites produced from nitrates (Burkholder 

 and Starr, Phytopath., 38, 1948, 498). 



Indole not produced. 



Hydrogen sulfide not produced. 



Acid but no gas from glucose, fructose, 

 galactose, mannose, arabinose, xylose, su- 

 crose, glycerol, mannitol, sorbitol, salicin 

 and esculin. 



No acid or gas from rhamnose, lactose, 

 maltose, raffinose, trehalose, melizitose, 

 starch, inulin, dextrin, dulcitol or arbutin. 



Alkaline reaction produced in glycogen 

 and in acetic, citric, formic, lactic, malic 

 and succinic acids. 



Temperature relations: Optimum, 27° C. 

 Minimum, 3.5° C. Maximum, 34.5° C. 



Chemical tolerance: Optimum pH, 7.0. 

 Minimum, 5.0. Maximum, 9.4. 



Source: Twenty-five cultures isolated 

 from blisters on apples and from rough bark. 



Habitat: Pathogenic on apple trees. 



88. Pseudomoiias pseudozoogloeae 



(Honing, 1914) Stapp, 1928. (Bacterium 

 pseudozoogloeae Honing, Bull, van Het. Deli 

 Proefstation, Medan, 1, 1914, 7; Stapp, in 

 Sorauer, Handbuch der Pflanzenkrank- 

 heiten, ^, 5 Aufl., 1928,274.) 



pseu.do.zo.o.gloe'ae. Gr. pseudes false; 

 Gr. zoum animal; Gr. gloea glue; M.L. 

 fem.noun Zoogloea bacterial generic name; 

 M.L. fem. gen. noun pseudozoogloeae of a 

 false zoogloea. 



Rods 0.7 to 1.5 by 0.9 to 2.5 microns. 

 Chains. Motile with 1 or 2 polar flagella. 

 Gram-negative. 



Green fluorescent pigment produced in 

 culture. 



Gelatin: Liquefied. 



Agar colonies: Round, flat, yellow-gray. 



Broth: Moderate turbidity with pseudo- 

 zoogloeae in the pellicle. 



Milk: Coagulation. No clearing. 



Nitrites not produced from nitrates. 



Indole not produced. 



