J.M. Young 2011: UNLIKELY PLANT PATHOGENIC BACTERIA. Journal of Plant Pathology 93(2): 247-250.
Details
Details
J.M. Young 2011: UNLIKELY PLANT PATHOGENIC BACTERIA. Journal of Plant Pathology 93(2): 247-250.
Article
Descriptions
This organism has not been isolated from diseased plants in the field but is associated with 'pink disease' of pineapple, apple and pear, a condition arising when contaminated fruit tissue is heated during preservation (Bradbury, 1986).
Strains originally identified as Pseudomonas pomi cause a localized and limited brown rot of mature apple and pear (Dhanvantari et al., 1978; Bradbury, 1986).
A. ilicis is a validly published species, but the strain nominated as the type strain has not been confirmed as a plant pathogen and there are no other proved pathogenic representatives of this species . A strain from the original investigation of the pathogen of American holly (Mandel et al., 1961) and proved pathogenic to the host is now accepted as the pathotype strain of Curtobacterium laccumfaciens pv. ilicis (Young et al., 2004; Tindall et at., 2008).
Originally recorded as expressing weak symptoms, the pathovar has since been considered not to be pathogenic (Duveiller et al., 1997).
Claimed to cause a leaf-spot of stone-fruit in synergy with X. pruni and cause secondary capsule rot of cotton and cause tuber rot of potato (Bradbury, 1986), B. pumilis is almost certainly a secondary saprobe. Reported by Saleh et at. (1997) but no pathogenic reference strain is recorded.
Strains consistently isolated from rotting potato and carrot tissue were characterized as a new species, C. puniceum, but their pathogenicity was not investigated (Lund et at., 1981).
Isolation was probably of a contaminating saprobe, the causal pathogen being Dickeya zeae (Bradbury, 1986).
Pathogenicity within this species is doubtful. Bradbury (1986) believed that most, if not all, records were based on the isolation of E. cloacae, a common saprobe.
The species was validly published. Because the type strain of P carnegiana (= E. carnegieana) was identified as a member of Klebsiella pneumoniae, a Request for an Opinion was made to reject this name (Alcorn and Orum, 1988). This was not supported because, in the absence of any identifiable strain to serve as the type strain, the name would naturally fall into disuse without
the necessity of placing it on the List of Rejected Names (Wayne, 1994). Plainly it should not be recorded in a list of pathogenic species.
Isolated from rots of mature or nearly mature fruit and only associated with losses after harvest (Bradbury, 1986).
There is no record that the type strain, isolated from Setaria italica, the only extant strain representative of the subspecies, is pathogenic.
The proposal by Moffett (1983) of Pseudomonas syringae pv. proteae for the pathogen does not conform to the Standards for Naming Pathovars (Young et at., 1991).
CFBP 2353; ICMP 3923; LMG 5092; NCPPB 2598 Bull et at. (2010) proposed that the current pathotype strain was unsuitable based on Gardan et al. (1999). Gardan et al. (1999) make no comment on the pathogenicity of the strain, nor of its unsuitability. Until this is investigated further, this strain should be considered the authentic pathotype.
The characterization of the species as a pathogen is based on the classification of a single strain whose authenticity and pathogenicity is doubtful (Grimont et at., 1983). Wilamajeewa et at. (1983) concluded that the causal organism of the disease described by Paine and Stansfield (1919) was a member of Pseudomonas syringae. The proposal by Moffett (1983) of Pseudomonas syringae pv. proteae for the pathogen does not conform to the Standards for Naming Pathovars (Young et at., 1991).
Cited scientific names
- Acetobacter aceti (Pasteur 1864) Beijerinck 1898
- Acetobacter pasteurianus (Hansen 1879) Beijerinck & Folpmers 1916
- Arthrobacter ilicis Collins et al. 1982
- Bacillus megaterium pv. cerealis Hosford 1982
- Bacillus pumilus Meyer & Gottheil 1901
- Clostridium puniceum Lund et al. 1981
- Enterobacter cloacae subsp. dissolvens (Rosen 1922) Hoffmann et al. 2005
- Enterobacter nimipressuralis (Carter 1945) Brenner et al. 1988
- Erwinia carnegieana Standring 1942
- Gluconobacter oxydans (Henneberg 1897) De Ley 1961
- Pantoea stewartii subsp. indologenes Mergaert et al. 1993
- Pectobacterium carnegieanum (Standring 1942) Brenner et al. 1973
- Pseudomonas syringae pv. proteae Moffett 1983
- Pseudomonas syringae pv. theae (Hori 1915) Young et al. 1978
- Serratia proteamaculans (Paine & Stansfield 1919) Grimont et al. 1978
Metadata
8efd3e1d-bb01-4206-91f4-8dcc2a1fddad
reference
Names_Fungi
23 November 2023
