Interactions of Antibiotics withPseudomonas fluorescensStrain A506 in the Control of Fire Blight and Frost Injury to Pear

Lindow, Steven E.; McGourty, Glenn; Elkins, Rachel

doi:10.1094/phyto-86-841

Cited by 106 publications

(35 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These properties could favour colonization of leaf surfaces. Lindow et al (1996) and Stockwell et al (1996) obtained good results with antibiotic resistant Pseudomonas fluorescens and Erwinia herbicola to control bacterial diseases in pear and apple crops.…”

Section: Introductionmentioning

confidence: 99%

Short communication : Antagonistic activity by Bacillus subtilis againts Xanthomonas campestris pv. glycines under controlled conditions

Salerno

Sagardoy

2003

Span. j. agric. res.

View full text Add to dashboard Cite

Bacterial pustule is a disease caused by Xanthomonas campestris pv. glycines (Nakano) Dye, which affects soybean crops in temperate regions with frequent rainfall. Symptoms are characterised by the appearance of yellowish-brown leaf lesions usually with an elevated lighter coloured centre. When the attack is severe, premature defoliation occurs and seed number and size are reduced (Sinclair, 1982). Although few data are available on the development of soybean bacteriosis, estimations made by Wrather et al. (1997) AbstractXanthomonas campestris pv. glycines (Nakano) Dye is the causal agent of bacterial pustule in soybean (Glycine max L.) Merrill. Two tests were carried out using 175 bacteria isolated in a previous work from the soybean leaflets or phyllosphere: the first one for susceptibility to three antimicrobial agents (penicillin, streptomycin and rifampicin) applied at two different doses (20 and 100 µg ml -1 ), and the second one for antagonism towards X. campestris. Eighteen bacterial isolates (10.3%) were resistant to penicillin and five (2.8%) to streptomycin at 100 µg ml -1 ; only 2% of the phyllosphere bacteria were resistant to rifampicin at 20 µg ml -1 . Isolate 210, identified as Bacillus subtilis, was resistant to rifampicin at 20 µg ml -1 , showed the highest degree of antibiosis against the pathogen and was further tested for antagonism against the pathogenic bacteria under greenhouse conditions. In the inoculation study, treatment of soybean leaf surfaces with B. subtilis 210 72 h before the inoculation with the pathogenic bacteria, reduced the number of lesions by X. campestris. There were significant differences with other treatments (P<0.05). The results obtained, although preliminary, indicated that B. subtilis 210 should be considered as a potential antagonistic agent for bacterial pustule soybean control studies.

show abstract

Section: Introductionmentioning

confidence: 99%

Short communication : Antagonistic activity by Bacillus subtilis againts Xanthomonas campestris pv. glycines under controlled conditions

Salerno

Sagardoy

2003

Span. j. agric. res.

View full text Add to dashboard Cite

show abstract

“…For biological control to be effective, most stigmatic surfaces in an orchard must be colonized by the bacterial antagonist (7,12), and the population size of the antagonists on stigmas must approach the carrying capacity of population size of the tissue (10 5 to 10 6 CFU/blossom) (30,31). In this research, the mean detectable population size of Eh-24 strR+ varied from 10 4 to 10 6 CFU per blossom under field conditions within 18 days following inoculation (Fig.…”

Section: "In Vitro" Compatibility Of P Agglomerans Strain Eh 24 Withmentioning

confidence: 80%

“…The incidence of fire blight on blossoms was reduced by about 60% with two applications of bacterial antagonists in experimental plots in the Pacific Northwest (16) and California (12). The efficacy of biological control approached or equaled levels obtained with chemical control in many of the field trials (12).…”

Section: Discussionmentioning

confidence: 99%

Biological control of fire blight in pear orchards with a formulation of Pantoea agglomerans strain Eh 24

Özaktan¹,

Bora²

2004

Braz. J. Microbiol.

View full text Add to dashboard Cite

Biological control by using epiphytic bacteria against Erwinia amylovora has been considered as an alternative method for controlling the disease. Talc-based formulation of Pantoea agglomerans strain Eh-24 was applied at 30% and 100% bloom on two pear orchards which were selected from different locations in the Aegean Region in Turkey. Pear orchard trials were replicated for two years (1999 and 2000) in each place. Talc-based formulation of P. agglomerans strain Eh-24 was sprayed on pear trees which were naturally infected with E. amylovora. In the orchard trials conducted in 1999 and 2000, talc-based formulation of P. agglomerans strain Eh-24 reduced the percentage of blighted blossoms on pear orchards by 63% to 76%, approximately. Copper oxychloride+maneb was less effective in reducing the incidence of blossom infection by E. amylovora in each pear orchard than the bioformulation treatment. P. agglomerans strain Eh-24 labelled with Str R+ was applied at 30% and 100% bloom to monitor the colonization and population dynamics of P. agglomerans on pear blossoms. The population size of P. agglomerans strain Eh-24 strR+ on pear blossoms increased from 2x10 4 to 1.3x10 6 cfu per blossom over 18 days.

show abstract

“…The incidence of fire blight on blossoms was reduced by about 60% with two applications of bacterial antagonists in experimental plots in the Pacific Northwest [19] and California [20]. The efficacy of biological control approached or equalled levels obtained with chemical control in many of the field trials [20].…”

Section: Introductionmentioning

confidence: 91%

Fire Blight Disease Caused by Erwinia amylovora on Rosaceae Plants in Kyrgyzstan and Biological Agents to Control This Disease

Döölotkeldieva¹,

Bobusheva²

2016

AiM

View full text Add to dashboard Cite

Erwinia amylovora species were isolated from the blossoms, exudates, infected fruits, leaves and bent branches of diseased apple, pear and hawthorn trees, selected in the Chy, Osh and Jalal Abad regions. Biochemical and pathogenicity tests, alongside PCR analyses, were conducted to identify the local isolates of Erwinia amylovora. The alternative antagonistic microorganisms which combat bacterium E. amylovora were tested within in vitro and in vivo conditions. The results revealed the ability of Streptomyces antagonistic bacteria to decrease fire blight severity on pear and apple trees during the first stage of the fire blight disease in leaf tissues. Streptomyces strain C1-4 suppressed E. amylovora disease symptoms in the leaf tissues and excised apple and pear shoots. The incidence of fire blight on leaves was reduced by about 70% with two applications of bacterial antagonists. Further studies at different locations in Kyrgyzstan, using large scale application, would allow for stronger recommendations to be made, including studies and recommendations on their ability to prevent disease and to use them as main components in an integrated pest management program.

show abstract

Interactions of Antibiotics withPseudomonas fluorescensStrain A506 in the Control of Fire Blight and Frost Injury to Pear

Cited by 106 publications

References 0 publications

Short communication : Antagonistic activity by Bacillus subtilis againts Xanthomonas campestris pv. glycines under controlled conditions

Short communication : Antagonistic activity by Bacillus subtilis againts Xanthomonas campestris pv. glycines under controlled conditions

Biological control of fire blight in pear orchards with a formulation of Pantoea agglomerans strain Eh 24

Fire Blight Disease Caused by <i>Erwinia amylovora</i> on <i>Rosaceae</i> Plants in Kyrgyzstan and Biological Agents to Control This Disease

Contact Info

Product

Resources

About

Interactions of Antibiotics withPseudomonas fluorescensStrain A506 in the Control of Fire Blight and Frost Injury to Pear

Cited by 106 publications

References 0 publications

Short communication : Antagonistic activity by Bacillus subtilis againts Xanthomonas campestris pv. glycines under controlled conditions

Short communication : Antagonistic activity by Bacillus subtilis againts Xanthomonas campestris pv. glycines under controlled conditions

Biological control of fire blight in pear orchards with a formulation of Pantoea agglomerans strain Eh 24

Fire Blight Disease Caused by &lt;i&gt;Erwinia amylovora&lt;/i&gt; on &lt;i&gt;Rosaceae&lt;/i&gt; Plants in Kyrgyzstan and Biological Agents to Control This Disease

Contact Info

Product

Resources

About

Fire Blight Disease Caused by <i>Erwinia amylovora</i> on <i>Rosaceae</i> Plants in Kyrgyzstan and Biological Agents to Control This Disease