ABIS Encyclopedia

Dickeya chrysanthemi

Taxonomy

Morphology

Cultural characteristics

Biochemical characters

Ecology

Pathogenicity

References

Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Enterobacterales, Family Pectobacteriaceae, Genus
Dickeya, Dickeya chrysanthemi (Burkholder et al. 1953) Samson et al. 2005, type species of the genus.
2 biovars: D. chrysanthemi bv. chrysanthemi and D. chrysanthemi bv. parthenii.

Basonym: Erwinia chrysanthemi Burkholder et al. 1953, old synonyms: Pectobacterium chrysanthemi (Burkholder et al. 1953)
Brenner et al. 1973, Erwinia carotovora var. chrysanthemi (Burkholder et al. 1953) Dye 1969, Pectobacterium cartovorum f. sp.
chrysanthemi Dowson 1957, Pectobacterium carotovorum var. chrysanthemi (Burkholder et al. 1953) Graham and Dowson 1960,
Pectobacterium parthenii Hellmers 1958.

Gram-negative rods, 0.5-1.0 x 1.0-3.0 µm with rounded ends. Usually motile by
means of peritrichous flagella. Occur alone, in pairs, sometimes in chains.

S-type colonies. Growth temperature 36 ºC. Facultatively anaerobic.

Isolated from soft rot and wilt of Chrysanthemum spp.,Cynara scolymus, Cichorium intybus, Helianthus annuus, Lycopersicon
esculentum, Parthenium argentatum and Philodendron spp.

Causes vascular wilts or soft rots on a range of host plants.

J. G. Holt et al., 1994. Facultatively Anaerobic Gram-Negative Rods. Subgroup 1. Family Enterobacteriaceae. In: Begey’s Manual of
Determinative Bacteriology, 9th-edition, Williams & Wilkins, pp 175-189.
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.
Regine Samson, Jean Bernard Legendre, Richard Christen, Marion Fischer-Le Saux, Wafa Achouak, and Louis Gardan. Transfer
of Pectobacterium chrysanthemi (Burkholder et al. 1953) Brenner et al. 1973 and Brenneria paradisiaca to the genus Dickeya gen.
nov. as Dickeya chrysanthemi comb. nov. and Dickeya paradisiaca comb. nov. and delineation of four novel species, Dickeya
dadantii sp. nov., Dickeya dianthicola sp. nov., Dickeya dieffenbachiae sp. nov. and Dickeya zeae sp. nov. Int J Syst Evol Microbiol
July 2005 55:1415-1427.
Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for
Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov.,
Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol
2016; 66:5575-5599.

Positive results for nitrates reduction, indole production, catalase, acid production
from glucose. Pectinolytic. Oxidase negative. Catabolize L-arabinose, myo-inositol,
D-malate, malonate, D-mannose, mucate, saccharate and mesotartrate, and not
D-trehalose, methyl alpha-glucoside, D-arabitol or sorbitol.