A proposed nomenclature and classification for plant pathogenic bacteria

Young, J. M.; Dye, D. W.; Bradbury, J. F.; Panagopoulos, C. G.; Robbs, C. F.

doi:10.1080/00288233.1978.10427397

Cited by 322 publications

(187 citation statements)

References 103 publications

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“…Young et al (27) and Dye et al ( 5 ) considered the named, phytopathogenic, oxidase-negative fluorescent, Pseudomonas spp. to be pathovars of P. syringae.…”

Section: Discussionmentioning

confidence: 99%

“…In 1978, Young et al (27) proposed a new nomenclature and classification for plant-pathogenic bacteria and introduced the concept of pathovar, and all fluorescent oxidasenegative Pseudomonas species (except Pseudomonas viridifrava) were considered to be members of a single species, Pseudomonas syringae, which had a number of pathovars. Thus, "P. savastanoi" became P. syringae pv.…”

mentioning

confidence: 99%

“…Thus, "P. savastanoi" became P. syringae pv. savastanoi (27). The pathovar is an infrasubspecific subdivision which is not covered by the International Code of Nomenclature of Bacteria (14).…”

mentioning

confidence: 99%

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DNA Relatedness among the Pathovar Strains of Pseudomonas syringae subsp. savastanoi Janse (1982) and Proposal of Pseudomonas savastanoi sp. nov.

Gardan

Bollet

Ghorrah

et al. 1992

International Journal of Systematic Bacteriology

149

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“…Young et al (27) and Dye et al ( 5 ) considered the named, phytopathogenic, oxidase-negative fluorescent, Pseudomonas spp. to be pathovars of P. syringae.…”

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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DNA Relatedness among the Pathovar Strains of Pseudomonas syringae subsp. savastanoi Janse (1982) and Proposal of Pseudomonas savastanoi sp. nov.

Gardan

Bollet

Ghorrah

et al. 1992

International Journal of Systematic Bacteriology

149

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“…We see no reason to list pvs. aberrans, armoraciae, campestris, barbareae, incanae, and raphani as pathovars of X. campestris, because they already exist (4,38,40). Similarly, we do not agree with the transfer of the remaining pathovars of X. campestris to the species X. axonopodis (30).…”

mentioning

confidence: 99%

“…This was done as a compromise according to the International Code of Nomenclature in order to preserve the name of economically important plant pathogens (38,39). The organisms were to be automatically elevated to their original proper species rank once appropriate phenotypic and genetic data were obtained and validly published.…”

mentioning

confidence: 99%

Evaluation of Proposed Amended Names of Several Pseudomonads and Xanthomonads and Recommendations

Schaad¹,

Vidaver²,

Lacy³

et al. 2000

Phytopathology®

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In 1980, over 90% of all plant-pathogenic pseudomonads and xanthomonads were lumped into Pseudomonas syringae and Xanthomonas campestris, respectively, as pathovars. The term “pathovar” was created to preserve the name of plant pathogens, but has no official standing in nomenclature. Proposals to elevate and rename several pathovars of the genera Pseudomonas and Xanthomonas to the rank of species has caused great confusion in the literature. We believe the following changes have merit and expect to adopt them for publication in a future American Phytopathological Society Laboratory Guide for Identification of Plant Pathogenic Bacteria. Upon review of published data and the Rules of The International Code of Nomenclature of Bacteria, we make the following recommendations. We reject the proposal to change the name of P. syringae pvs. phaseolicola and glycinea to P. savastanoi pvs. phaseolicola and glycinea, respectively, because both pathogens are easily differentiated phenotypically from pv. savastanoi and convincing genetic data to support such a change are lacking. We accept the elevation of P. syringae pv. savastanoi to the rank of species. We accept the reinstatement of X. oryzae to the rank of species with the inclusion of X. oryzicola as a pathovar of X. oryzae and we accept the species X. populi. We agree with the elevation of the pvs. cassavae, cucurbitae, hyacinthi, pisi, and translucens to the rank of species but not pvs. melonis, theicola, and vesicatoria type B. We recommend that all type A X. vesicatoria be retained as X. campestris pv. vesicatoria and all type B X. vesicatoria be named X. exitiosa. We reject the newly proposed epithets arboricola, bromi, codiaei (poinsettiicola type B), hortorum, sacchari, and vasicola and the transfer of many pathovars of X. campestris to X. axonopodis. The proposed pathovars of X. axonopodis should be retained as pathovars of X. campestris.

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Rathayibacter

Evtushenko¹,

Dorofeeva²

2015

Bergey's Manual of Systematics of Archaea and Bacteria

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Ra.thay.i.bac'ter. N.L. n. Rathaya Rathay, referring to E. Rathay, Australian plant pathologist who first isolated strains of the genus; N.L. masc. n. bacter rod; N.L. masc. n. Rathayibacter a rod isolated by Rathay. Actinobacteria / Actinobacteria / Micrococcales / Microbacteriaceae / Rathayibacter Young cells are irregular, straight to slightly curved rods , most of which are 0.5–0.7 µm in diameter and ~1.1–2.0 µm in length, with bluntly rounded ends. Cells are often disposed at an angle to each other, giving V‐forms or sometimes more complex angular arrangements. In older cultures, coccobacillaric forms usually predominant . Nonmotile. Nonsporeforming. Capsule is produced. Stains Gram‐ positive but not acid‐fast. Lysozyme resistant. Chemo‐organotrophs. Obligately aerobic , having a respiratory type of metabolism with oxygen as the terminal electron acceptor. Catalase‐positive. Oxidase reaction is usually negative or weakly positive. Nutritionally exacting , most strains require vitamins and amino acids for growth. Growth moderate to good on standard laboratory media based on peptone, yeast extract, and glucose at near neutral pH. Colonies are yellow or rose‐orange to pink. Acids are produced oxidatively and rather weakly from carbohydrates. Nitrate is not reduced to nitrite ; nitrite is not reduced. Mesophilic. Optimum temperature ~24–27°C; no growth at 7°C or 37°C. DNA G + C ( mol %): 60–69. Type species : Rathayibacter rathayi (Smith 1913) Zgurskaya, Evtushenko, Akimov and Kalakoutskii 1993, 146 VP (“ Aplanobacter rathayi ” Smith 1913, 926; “ Phytomonas rathayi ” Bergey, Harrison, Breed, Hammer and Hunton 1923, 192; Corynebacterium rathayi Dowson 1942, 313; “ Pseudobacterium rathayi ” Krasil'nikov 1949, 225; “ Corynebacterium michiganense pv. rathayi ” Dye and Kemp 1977, 578; Clavibacter rathayi Davis, Gillespie, Vidaver and Harris 1984, 113).

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A proposed nomenclature and classification for plant pathogenic bacteria

Cited by 322 publications

References 103 publications

DNA Relatedness among the Pathovar Strains of Pseudomonas syringae subsp. savastanoi Janse (1982) and Proposal of Pseudomonas savastanoi sp. nov.

DNA Relatedness among the Pathovar Strains of Pseudomonas syringae subsp. savastanoi Janse (1982) and Proposal of Pseudomonas savastanoi sp. nov.

Evaluation of Proposed Amended Names of Several Pseudomonads and Xanthomonads and Recommendations

Rathayibacter

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