Pantoea agglomerans pvs. gypsophilae and betae, recently
evolved pathogens?
Shulamit Manulis1 and Isaac Barash2
1 Department of Plant Pathology, ARO, The Volcani Center, Bet Dagan
50250, Israel
2 Department of Plant Sciences, Tel-Aviv University,
Tel-Aviv 69978, Israel
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| Taxonomy: |
Bacteria; Proteobacteria; gamma subdivision;
order Enterobacteriales; family Enterobacteriaceae; species Pantoea
agglomerans. |
| Microbiological properties: |
Gram-negative, non-capsulated,
non-spore-forming, predominately motile rode. |
| Disease symptoms: |
Gall formation at wound sites, mainly in
the crown region of the stem. The host range of P. agglomerans pv. gypsophilae
is restricted to Gypsophila paniculata, whereas P. agglomerans
pv. betae is pathogenic on Beta vulgaris and gypsophila. |
| Disease control: |
Pathogenic-free transplants and sanitation. No
resistant cultivars are available. |
| Major virulence determinants: |
Pathogenicity plasmid (pPATH), hrp
cluster, type III virulence effectors, phytohormones. |
|
Galls on gypsophila cuttings incited by
Pantoea agglomerans pv. gypsophilae ( Ehg824–1)
and pv. betae ( Ehb4188) after 14 days
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