Curtobacterium flaccumfaciens
| Curtobacterium flaccumfaciens | |
|---|---|
| Scientific classification | |
| Kingdom: | Bacteria |
| Phylum: | Actinobacteria |
| Order: | Actinomycetales |
| Suborder: | Micrococcineae |
| Family: | Microbacteriaceae |
| Genus: | Curtobacterium |
| Binomial name | |
|
Curtobacterium flaccumfaciens |
|
| Synonyms | |
|
Bacterium flaccumfaciens Hedges 1922 |
|
Bacterium flaccumfaciens Hedges 1922
Phytomonas flaccumfaciens (Hedges 1922) Bergey et al. 1923
Pseudomonas flaccumfaciens (Hedges 1922) Stevens 1925
Corynebacterium flaccumfaciens subsp. flaccumfaciens (Hedges 1922) Dowson 1942
Corynebacterium betae Keyworth et al. 1956
Corynebacterium flaccumfaciens subsp. betae (Keyworth et al. 1956) Carlson and Vidaver 1982
Corynebacterium oortii Saaltink and Maas Geesteranus 1969
Corynebacterium flaccumfaciens subsp. oortii (Saaltink and Maas Geesteranus 1969) Carlson and Vidaver 1982
Corynebacterium poinsettiae (Starr and Pirone 1942) Burkholder 1948
Corynebacterium flaccumfaciens subsp. poinsettiae (Starr and Pirone 1942) Carlson and Vidaver 1982
Corynebacterium flaccumfaciens (Hedges 1922) Dowson 1942
Curtobacterium flaccumfaciens is a Gram-positive soil bacterium that causes disease on a variety of plants. Gram-positive bacterium characteristics include small irregular rods, lateral flagella, the ability to persist in aerobic environments, and cells containing catalase. In the interest of studying pathogenicity in plants, the species Curtobacterium flaccumfaciens is broken down further into pathovars, which help to better describe the pathogen.
Curtobacterium flaccumfacien is a bacterial wilt pathogen. The hallmark symptoms of bacterial wilt are leaf and petiole wilting. Chlorosis of the leaf and tissue occurs due to the lack of water transport. Curtobacterium flaccumfaciens as a species has a wide host range not limited to kidney beans, soybeans, tulips, and tomatoes. However, the species is artificially separated into a pathovar based on host range and symptoms. One of the economically important pathovars is Curtobacterium flaccumfaciens pv. Flaccumfaciens. This pathovar is classified as bacterial wilt and has a primary host range of the genus Phaseolus (beans), but the pathogen can infect many other species of the Fabaceae. In beans the symptoms can be devastating to the crop yield. These beans have severe foliage wilting and chlorosis.
One ornamental example is Curtobacterium flaccumfaciens pv. oortii. The primary host are plants from the genus Tulipa (Tulip). Although the host range differs, the symptoms are relatively similar. During flowering typical symptoms of dehydration are observed. Similarly to beans, the tulips get wilt. In severe cases, the plant eventually fails to recover from wilting and dies.
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