Genus Brenneria
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae, Genus Brenneria,
- Brenneria alni, Hauben et al. 1999, (basonym: Erwinia alni, Surico et al. 1996)
- Brenneria nigrifluens, Hauben et al. 1998 (basonym: Erwinia nigrifluens, Wilson et al. 1957)
- Brenneria quercina, Hauben et al. 1998 (basonym: Erwinia quercina, Hildebrand and Schroth 1967)
- Brenneria rubrifaciens, Hauben et al. 1998 (basonym: Erwinia rubrifaciens, Wilson et al. 1967)
- Brenneria salicis, Hauben et al. 1998 - type species of the genus (basonym: Erwinia salicis, , Day 1924;
Old synonyms:
Bacterium salicis, Phytomonas salicis, Pseudobacterium salicis, Erwinia amylovora var. salicis,Pseudomonas
saliciperda
).
Gram negative rods, motile (peritrichous flagella), 0.5-1.0 x 1-3 µm.
Colonies are generally mucoid, domed and can vary in color from white to cream. B.
rubrifaciens
produces a water soluble, diffusible pink-red pigment (rubrifacin) on yeast
extract glucose chalk agar.
Optimum growth temperature 26 - 30 ºC. No growth at 40 ºC. Facultatively anaerobic.
Isolated from plants.
Cause diseases on trees (e.g., deciduous trees and walnut trees), which include blights, cankers, wilts, necrosis, and rots.
Brenneria alni causes bark canker disease of alder (Alnus sp.).
Brenneria nigrifluens  causes a bark necrosis of the Persian walnut (Juglans regia).
Brenneria quercina causes the drippy nut disease of live oaks.
Brenneria rubrifaciens  pcauses the canker of persian walnut tree.
Brenneria salicis causes a vascular wilt (watermark disease) of Salix species.
  1. J. G.Holt et al., 1994. Begey’s manual of Determinative Bacteriology, 9th-edition, Williams & Wilkins.
  2. Don J. Brenner and J.J. Farmer III, 2001. Family I. Enterobacteriaceae. In:  Bergey’s Manual of Systematic Bacteriology, Second
    edition,Vol two, part B, George M. Garrity (Editor-in-Chief), pp 587-897.
  3. Giuseppe Surico, Laura Mugnai, Roberta Pastorelli, Luciana Giovannetti, and David E. Stead. Erwinia alni, a New Species
    Causing Bark Cankers of Alder (Alnus Miller) Species. Int J Syst Bacteriol July 1996 46:720-726.
Positive results for catalase, H2S production, acid production from fructose,
D-galactose, D-glucose, D-mannose, salicin & sucrose.

Negative results for oxidase, nitrate reduction, indole production, arginine
dihydrolase, lysine decarboxylase, ornithine decarboxylase, starch hydrolysis, acid
production from adonitol, dulcitol, lactose.
(c) Costin Stoica
Antibiogram
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R E G N U M
PROKARYOTAE
 
Citrate
utilization
Urea
hydrolysis
Acetoin
production
L-Arabinose
fermentation
Inositol
fermentation
Trehalose
fermentation
Xylose
fermentation
B. alni
-
+
+
+
-
+
+
B. nigrifluens
d
d
+
+
+
+
+
B. quercina
+
-
+
-
-
-
-
B. rubrifaciens
+
-
-
+
-
-
-
B. salicis
+
-
+
-
+
-
-
Differential characters of the species:
Legend: +  positive 90-100%, - negative 90-100%, [+] positive 75-89%, [-] negative 75-89%, d positive 25-74% of strains
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