Discovery of new morganocin types of Morganella morganii in strains of diverse serotype and the apparent independence of bacteriocin type from serotype of strains

Senior, B. W.; Vöuröus, S.

doi:10.1099/00222615-29-2-89

Cited by 11 publications

(1 citation statement)

References 12 publications

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“…The smallest num ber of observed types occurred in a study with 200 isolates, four test strains, and 11 types of a possible 24 = 16; the most occurred in a study with 553 isolates, seven test strains, and 64 types of a possible 27 = 128. Similar levels of diversity have been reported for a variety of species (Gaston et al 1989;Senior & Voros 1989;R ocha & U zeda 1990;T rau b 1991;Riley & G ordon 1992).…”

Section: B a C T E R Io C In S A N D A L L E L O P A T H Ysupporting

confidence: 79%

Recognition and polymorphism in host—parasite genetics

1994

Phil. Trans. R. Soc. Lond. B

106

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SUMMARYGenetic specificity occurs in many host-parasite systems. Each host can recognize and resist only a subset of parasites; each parasite can grow only on particular hosts. Biochemical recognition systems determine which matching host and parasite genotypes result in resistance or disease. Recognition systems are often associated with widespread genetic polymorphism in the host and parasite populations. I describe four systems with matching host-parasite polymorphisms: plant-pathogen interactions, nuclear-cytoplasmic conflict in plants, restriction enzymes in bacterial defence against viruses, and bacterial plasmids that compete by toxin production and toxin immunity. These systems highlight several inductive problems. For example, the observed patterns of resistance and susceptibility between samples of hosts and parasites are often used to study polymorphism. The detectable polymorphism by this method may be a poor guide to the actual polymorphism and to the underlying biochemistry of host-parasite recognition. The problem of using detectable polymorphism to infer the true nature of recognition and polymorphism is exacerbated by non-equilibrium fluctuations in allele frequencies that commonly occur in host-parasite systems. Another problem is that different matching systems may lead either to low frequencies of host resistance and common parasites, or to common resistance and rare parasites. Thus low levels of host resistance or rare parasites do not imply that parasitism is an unimportant evolutionary force on host diversity. Knowledge of biochemical recognition systems and dynamical analysis of models provide a framework for analysing the widespread polymorphisms in host-parasite genetics.

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Section: B a C T E R Io C In S A N D A L L E L O P A T H Ysupporting

confidence: 79%

Recognition and polymorphism in host—parasite genetics

1994

Phil. Trans. R. Soc. Lond. B

106

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Proteus, Morganella, and Providencia

Senior

2010

Topley &Amp; Wilson's Microbiology and Microbial Infections

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Morganella

Janda¹,

Abbott²

2015

Bergey's Manual of Systematics of Archaea and Bacteria

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Mor.ga.nel'; la . M.L. dim. ending ‐ ella; M.L. fem. n. Morganella named after H. de R. Morgan, who first studied the organism. Proteobacteria / Gammaproteobacteria / Enterobacteriales / Enterobacteriaceae / Morganella Straight rods, 0.6–0.7 × 1.0–1.7 µm. Gram negative. Motile by means of peritrichous flagella. Facultatively anaerobic. Oxidative deamination of various amino acids including L ‐phenylalanine and L ‐tryptophan (Singer and Volcani, 1955). Urease positive. Indole positive (Penner, 1984). Relatively few carbohydrates fermented. Ornithine decarboxylase positive. Acid produced from D ‐mannose but not D ‐xylose. Gelatin not degraded . The genus Morganella presently resides in the class Gammaproteobacteria in the family Enterobacteriaceae , based upon DNA hybridization data and not rDNA sequencing (Stackebrandt et al., 1988). 16S rDNA sequence data are presently unavailable. The mol % G + C of the DNA is : 50 (Falkow et al., 1962). Type species : Morganella morganii (Winslow, Kliger and Rothberg 1919) Fulton 1943, 81 ( Bacillus morgani (sic) Winslow, Kliger and Rothberg 1919, 481; Proteus morganii (Winslow, Kliger and Rothberg 1919) Yale 1939b, 435.)

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Discovery of new morganocin types of Morganella morganii in strains of diverse serotype and the apparent independence of bacteriocin type from serotype of strains

Cited by 11 publications

References 12 publications

Recognition and polymorphism in host—parasite genetics

Recognition and polymorphism in host—parasite genetics

Proteus, Morganella, and Providencia

Morganella

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