Page:Bergey's manual of determinative bacteriology.djvu/176

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154
ORDER I. PSEUDOMONADALES
B. Gelatin not liquefied.
1. Starch hydrolyzed.

51. Xanthomonas axonopodis.

2. Starch not hydrolyzed.

52. Xanthomonas oryzae.

C. Gelatin not reported.
1. Starch hydrolyzed.

53. Xanthomonas celebensis.

II. Colonies whitish to cream; pigment non-water-soluble.

A. Gelatin liquefied.
1. Starch hydrolyzed.
a. Nitrites produced from nitrates.

54. Xanthomonas panici.

55. Xanthomonas proteamaculans.

56. Xanthomonas manihotis.

aa. Nitrites not reported.

57. Xanthomonas rubrisubalbicans.

2. Starch not reported.

58. Xanthomonas cannae.

59. Xanthomonas conjac.

60. Xanthomonas zingiberi.

HOST PLANT KEY

The following key will be found useful for purposes of identification where the bacterium is isolated from a known host plant.

I. Cause of leaf, stem and fruit spots and occasional blights of monocotyledonous plants.

A. Attack members of the family Araceae.

59. Xanthomonas conjac.

18. Xanthomonas dieffenbachiae.

B. Attacks members of the family Cannaceae.

58. Xanthomonas cannae.

C. Attack members of the family Gramineae.

51. Xanthomonas axonopodis.

20. Xanthomonas holcicola.

52. Xanthomonas oryzae.

53. Xanthomonas panici.

5. Xanthomonas rubrilineans.

57. Xanthomonas rubrisubalbicans.

33. Xanthomonas translucens.

35. Xanthomonas vasculorum.

D. Attacks members of the family Iridaceae.

49. Xanthomonas gummisudans.

E. Attack members of the family Liliaceae.

1. Xanthomonas hyacinthi.

44. Xanthomonas phormicola.

F. Attacks members of the family Musaceae.

52. Xanthomonas celebensis.

G. Attacks members of the family Zingiberaceae.

60. Xanthomonas zingiberi.

II. Cause of leaf, stem and fruit spots and occasional blights of dicotyledonous plants.

A. Attacks members of the family Aceraceae.

41. Xanthomonas acernea.