Defence Reactions Induced by Phytopathogenic Bacteria in Bean Pods

Klement, Z.; Lovrekovich, L.

doi:10.1111/j.1439-0434.1961.tb04050.x

Cited by 67 publications

(59 citation statements)

References 3 publications

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“…The abrupt termination of the logarithmic growth phase of heterologous pseudomonas organisms in bean and cherry leaves agreed with results of other workers and must be similarly attributed to specific bacteriostatic responses induced in the host (Allington & Chamberlain, 1949;Klement & Lovrekovich, 1961,1962. Whether it was the same as the hypersensitivity reaction described by Klement et al (1964) in tobacco leaves is less certain, since it was not accompanied a t the lowest inoculum doses by visible necrosis of the leaf tissues.…”

Section: Discussionsupporting

confidence: 77%

“…The lack of relationship between the time of appearance of the inhibitory response and the initial and final bacterial populations in the leaves also agrees with results in other heterologous combinations (Klement & Lovrekovich, 1961, 1962Klement et al 1964) and it suggests that induction of the response may be largely independent of the numbers of bacteria in the tissues. This is consistent with recent evidence which indicates that induction occurs soon after inoculation and is followed by a latent period before the inhibitory effect appears (Klement & Goodman, personal communication).…”

Section: Discussionsupporting

confidence: 75%

“…morsprunorum is found only on plants of the genus Prunus. I n common with many other phytopathogenic bacteria, however, both organisms when inoculated under suitable conditions will grow and induce symptoms in plants having little botanical affinity with their natural hosts (Erikson, 1945; Dye, 1958; Logan, 1960; Klement & Lovrekovich, 1961, 1962 Klement, 1963; Klement, Fa.rkas & Lovrekovich, 1964). The following investigation compared the growth of P. phaseolicola and P. morsprunorum in natural hosts of these organisms and i t was undertaken to provide preliminary information on the factors determining host specificity in the field.…”

Section: Introductionmentioning

confidence: 99%

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The Growth of Pseudomonas phaseolicola and Related Plant Pathogens in vivo

Ercolani¹,

Crosse²

1966

Journal of General Microbiology

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SUMMARYI n the leaves of their natural (homologous) hosts, the bean and cherry respectively, Pseudomonas phaseolicola and P. morsprunorum increased logarithmically for at least 4 days after inoculation. Transition into the stationary phase was gradual and accompanied by water congestion of the infected tissues, followed by typical field symptoms. Increases in the inoculum dose had relatively little or no effect on the generation time but growth ceased earlier at the higher doses. I n the reciprocal (heterologous) combinations, logarithmic growth was abruptly terminated after 2-3 days, due apparently to a specific defensive reaction in the host. This coincided at the higher inoculum doses with the appearance of dry necrotic symptoms in the leaves. No macroscopic symptoms were observed with the lower doses, and with the lowest dose in bean there was an acceleration of leaf maturation in the presence of heterologous organisms. Generation times were lower in heterologous combinations but increased markedly with the inoculum dosc. The growth of the pear strain of P. syringae in bean and cherry leaves showed typical heterologous characteristics. The final yields of bacteria per unit inoculum were invariably higher in homologous combinations, but they decreased with increasing dose, whereas heterologous yields increased. The differences in net growth response were therefore greatest a t the lowest doses. This suggested that host specificity in the field was associated with factors controlling growth of the organisms in vivo from small initial inocula.

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Section: Discussionsupporting

confidence: 77%

Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Growth of Pseudomonas phaseolicola and Related Plant Pathogens in vivo

Ercolani¹,

Crosse²

1966

Journal of General Microbiology

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“…The potential biocontrol bacterial strains were tested for hypersensitivity on tobacco plants (nicotina tabacum L. var. Samsun) as described by Klement et al (1964). The bacterial suspension (10 8 CFU/ml) was prepared in sterile distilled water and infiltrated into the intercostal area of the leaves of tobacco plants by using a 3cc syringe without needle (Becton Dickinson, Franklin Lakes, USA).…”

Section: Methodsmentioning

confidence: 99%

Biological control of Sclerotinia sclerotiorum (Lib.) de Bary, the causal agent of white mould disease in red cabbage, by some bacteria

Tozlu¹,

Mohammadi²,

Kotan³

et al. 2016

Plant Prot. Sci.

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Tozlu E., Mohammadi P., Senol Kotan M., Nadaroglu H., Kotan R. (2016): Biological control of Sclerotinia sclerotiorum (Lib.) de Bary, the causal agent of white mould disease in red cabbage, by some bacteria. Plant Protect. Sci.,.Sclerotinia sclerotiorum (Lib.) de Bary is the causal agent of white mould, stem, and fruit rot diseases on a wide variety of crop plants including cabbage (Brassica oleracea L.) in field and storage. Control of this pathogen by using commercial disease management methods is extremely difficult. Therefore, this study was performed to develop an alternative and effective control method for the diseases by using biocontrol bacteria -Bacillus subtilis (strains TV-6F, TV-17C, TV-12H, BA-140 and EK-7), Bacillus megaterium (strains TV-103B), and Bacillus pumilus (strains RK-103) on Petri plate assays and on red cabbage in pot assays. On Petri plates, all of the tested bacterial strains showed the zone of inhibition against the pathogen fungus ranging 15.00-26.50 mm. Their percentage inhibition rates and lesion length ranged 42.64-79.41% and 0.02-4.50 cm in pot assays, respectively. Consequently, our results indicated that especially B. subtilis strains TV-17C, TV-12H, and TV-6F can be used as bio control agent of S. sclerotiorum in red cabbage production.

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“…In order to avoid performing identification tests on saprophytes, a hypersensitive reaction (HR) test can be performed on bean pods (Klement & Lovrekovich, 1961) by infiltrating tissues with aqueous suspensions containing approximately 10 7 cfu mL À1 of the putative xanthomonads.…”

Section: Hypersensitive Reactionmentioning

confidence: 99%

PM 7/110 (1) Xanthomonas spp. (Xanthomonas euvesicatoria, Xanthomonas gardneri, Xanthomonas perforans, Xanthomonas vesicatoria) causing bacterial spot of tomato and sweet pepper

2013

EPPO Bulletin

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Defence Reactions Induced by Phytopathogenic Bacteria in Bean Pods

Cited by 67 publications

References 3 publications

The Growth of Pseudomonas phaseolicola and Related Plant Pathogens in vivo

The Growth of Pseudomonas phaseolicola and Related Plant Pathogens in vivo

Biological control of Sclerotinia sclerotiorum (Lib.) de Bary, the causal agent of white mould disease in red cabbage, by some bacteria

PM 7/110 (1) Xanthomonas spp. (Xanthomonas euvesicatoria, Xanthomonas gardneri, Xanthomonas perforans, Xanthomonas vesicatoria) causing bacterial spot of tomato and sweet pepper

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