Results 171 to 180 of about 11,698 (205)

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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Inhibition of Erwinia amylovora by Bacillus nakamurai

Current Microbiology, 2020
A variety of potential inhibitors were tested for the first time for the suppression of Erwinia amylovora, the causal agent of fire blight in apples and pears. Strain variability was evident in susceptibility to inhibitors among five independently isolated virulent strains of E. amylovora.
Timothy D, Leathers, Lauren P, Saunders, Michael J, Bowman, Neil P J, Price, Kenneth M, Bischoff, Joseph O, Rich, Christopher D, Skory, Melinda S, Nunnally   +7 more
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Characterization of hns genes from Erwinia amylovora

Molecular Genetics and Genomics, 2006
The small basic histone-like protein H-NS is known for bacteria to attenuate virulence of several animal pathogens. An hns homologue from E. amylovora was identified by complementing an E. coli hns-mutant strain with a cosmid library from E. amylovora.
M, Hildebrand, P, Aldridge, K, Geider
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Erwinia amylovora (fireblight).

2021
Abstract The long distance spread of fire blight is a rare event which in most cases seems to be the result of plants or plant tissues being moved across the oceans. Short distance spread is the result of the characteristics of the pathogen, especially its ability to produce an exudate (bacteria embedded in exopolysaccharides) which is easily ...
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???????????????????????????? KEY-???????????????? ?????????????????????????? Erwinia amylovora

2018
???????????????????? ???????????????????????????? ???????????????? ??????????????, ???? ?????? ?????????????????? ?? ?????????? ???? ?????????? ??????????, ???????????????? Erwinia amylovora. ??????????????????????, ???? ???????????? ?????????????? ???????????????????????????? ?????????????????? KEY-???????????????? ??????????, ???????????? ???????? ???
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Erwinia amylovora: historia de una superbacteria

Revista Digital Universitaria, 2023
Históricamente, el tizón de fuego (causado por la bacteria Erwinia amylovora) ha sido un referente en el estudio de enfermedades de plantas. La comprensión y el estudio de esta enfermedad han beneficiado a la fitopatología, además, ha propiciado avances importantes en otras ciencias como la biotecnología y la microbiología.
Daniel Alejandro de la Peña Baca, Carlos Horacio Acosta Muñiz, Alejandro Romo Chacón   +2 more
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HETEROLOGOUS EXPRESSION OF EPS-GENES IN ERWINIA AMYLOVORA AND ERWINIA STEWARTII

Acta Horticulturae, 1993
A gene cluster for exopolysaccharide (EPS) synthesis of Erwinia amylovora was cloned in cosmid pEA109 and identified by complementation of Erwinia stewartii mutants deficient in EPS−production (cps). A corresponding cluster from E. stewartii (pES2144) complemented EPS−mutants of E. amylovora (ams). Two EPS−dependent phages were used to characterize EPS
Bernhard, F., Bellemann, P., Bugert, P., Coplin, D., Geider, K.   +4 more
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YEASTS AS ANTAGONISTS AGAINST ERWINIA AMYLOVORA

Acta Horticulturae, 2006
Epiphytic yeasts are potential antagonists to fire blight in apple blossoms. They showed effects against Erwinia amylovora in field experiments and reduced symptoms on detached apple blossoms. In this study, strains of Aureobasidium pullulans and Metschnikowia pulcherrima were investigated using the immature pear fruit assay and agar diffusion assay ...
A. Seibold, M. Viehrig, W. Jelkmann
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Capsulation and virulence in Erwinia amylovora

Annals of Applied Biology, 1978
SUMMARYEvidence is presented that capsulation may be one virulence determinant for Erwinia amylovora, the fireblight pathogen.When 15 virulent and seven avirulent strains were grown on a medium containing asparagine as the only source of carbon and nitrogen, or yeast peptone agar, or on a sugar medium containing an inorganic source of nitrogen, capsule
R. A. BENNETT, EVE BILLING
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Serological Differences among Erwinia amylovora Biovars

Journal of General Plant Pathology, 2002
Serological properties were compared among four biovars of Erwinia amylovora. Two biovars (bvs. 1 and 2) from Maloideae sources outside of Japan, one (bv. 3) from Rubus idaeus and one causing bacterial shoot blight of pear (bv. 4) had different reactions in Ouchterlony double diffusion tests using living cells and lipopolysaccharides (LPS) as antigens.
Akifumi MIZUNO, Shigeyoshi SATO, Akira KAWAI   +2 more
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