Results 121 to 130 of about 15,889 (165)

Amber suppressors of Erwinia chrysanthemi

Annales de l'Institut Pasteur / Microbiologie, 1987
Mutations trp1 and thyA1, both of a polyauxotrophic derivative of the Erwinia chrysanthemi strain B374, were characterized as amber mutations with an Escherichia coli suppressor, supA1P2, which inserts a glutamine in response to UAG. Simultaneous reversion of both mutations allowed us to isolate amber suppressor mutants of E. chrysanthemi.
Schoonejans, Eric F., Faelen, Michel, Desmet, Lucie, Toussaint, Ariane   +3 more
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Effect of Erwinia Herbicola on the Motility and Chemotaxis of Erwinia Amylovora

1987
Erwiniaherbicola (112Y), a common leaf saprophyte, has been reported to inhibit apple blossom infection by Erwinia amylovora, the causal agent of fire blight of Rosaceous plants. Optimum conditions required for motility and chemotaxis in E. herbicola (112Y) were determined by the capillary assay. To better understand the saprophyte’s role in preventing
J. J. Klopmeyer, S. M. Ries
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Biological control of Erwinia amylovora by Erwinia herbicola

1993
A naturally-occurring Erwinia herbicola strain, Eh1087, inhibitory to Erwinia amylovora (Burr.) Winslow et al. (1920) was isolated from apple blossom (Malus X. domestica Borkh.) in a Canterbury orchard. Total populations of E. herbicola on apple blossoms in Canterbury and Hawkes Bay orchards were low (less than 50 cfu.blossom-1) throughout flowering ...
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Quorum sensing in Erwinia species

Analytical and Bioanalytical Chemistry, 2006
The term quorum sensing (QS) refers to the ability of bacteria to regulate gene expression according to the accumulation of signalling molecules that are made by every cell in the population. The erwiniae group of bacteria are often phytopathogens and the expression of a number of their important virulence determinants and secondary metabolites is ...
Anne M L, Barnard, George P C, Salmond
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Extracellular polysaccharide of Erwinia chrysanthemi

Carbohydrate Research, 1995
Abstract The extracellular polysaccharide (EPS) produced by E. chrysanthemi pv. zeae strain SR260, a strain pathogenic to corn, has a branched hexasaccharide repeat unit consisting of a glucomannorhamnan backbone [ → 3)-β- d - Glc p-(1 → 4)-α- d - Man p-(1 → 3)-α- l - Rha p-(1 → ] and a trisaccharide side-chain [ α- l - Rha ...
J S, Gray, T A, Koerner, R, Montgomery
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EXOPOLYSACCHARIDES IN PATHOGENICITY OF ERWINIA AMYLOVORA

Acta Horticulturae, 1993
The genetics of the two major exopolysaccharides of Erwinia amylovora, levan and amylovoran, were determined. Transposon mutants lacking levan synthesis were fully virulent on immature pears and showed retarded fireblight symptoms on shoots of pear seedlings.
Geider, K., Geier, G., Bellemann, P., Bernhard, F., Bugert, P., Metzger, M.   +5 more
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Pectic enzymes of Erwinia carotovora

Archives of Biochemistry and Biophysics, 1953
Abstract A culture of Erwinia carotovora isolated from rotted Mexican bell pepper liberated methanol practically quantitatively from pectin when growing in a pectin medium. This phenomenon is considered to be positive evidence of pectinesterase activity. Polygalacturonase could not be demonstrated directly in the culture medium containing actively
A J, KRAGHT, M P, STARR
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Endophthalmitis Caused by an Erwinia Species

Archives of Ophthalmology, 1977
A 14-year-old boy developed exogenous endophthalmitis presumably caused by an Erwinia species. To our knowledge, this is the firs reported case of endophthalmitis caused by an Erwinia species, which has been considered pathogenic for only the last ten years. The endophthalmitis developed after a piece of wood penetrated the patient's sclera.
C S, Oesterle, H A, Kronenberg, G A, Peyman   +2 more
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??????????????????????-???????????????????????? ???????????????????????? ???????????????????????? ?????????????? Erwinia carotovora

2021
???? ???????????? ???????????????????????????? ???????????????????? ???????????????????? ???????????? ?????? ???????????????? ??????????????????????-???????????????????????? ?????????????????????? ???????????????????????? ?????????????? ???????????? ???????????????????????????? ???????????????? Erwinia carotovora ?? ?????????????????? ???? ???????? ?? ?
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REGULATION OF PECTINOLYSIS IN ERWINIA CHRYSANTHEMI

Annual Review of Microbiology, 1996
Erwinia chrysanthemi is an enterobacterium that causes various plant diseases. Its pathogenicity results from the secretion of pectinolytic enzymes responsible for the disorganization of the plant cell wall. The E. chrysanthemi strain 3937 produces two pectin methylesterases, at least seven pectate lyases, a polygalacturonase, and a pectin lyase.
Hugouvieux-Cotte-Pattat, N., Condemine, G., Nasser, W., Reverchon, S.   +3 more
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