Bacterial Canker of Japanese Apricot (Prunus mume) Caused by Pseudomonas syringae pv. morsprunorum

Young, Kim Doo; Shim, Han Hyo; Jin, Koh Young; Sung, Jung Jae

doi:10.5423/rpd.2005.11.2.135

Cited by 3 publications

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“…carotovora [39,40], Pseudomonas spp. [2], Pseudomonas syringae [41,42], Pseudomonas marginalis [43][44][45], Pseudomonas ciridiflava [43][44][45], Botrytis cinerea [46], Colletotrichum spp. [47], Fusarium spp.…”

Section: Introductionmentioning

confidence: 99%

Variation in Pathogenic Organisms as Affected by Using Hydroponic Nutrient Wastewater in Horticultural Facilities

et al. 2022

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Among the horticulture facilities in Korea, the hydroponic cultivation method has been increasingly used. This study aimed to identify fungi and bacterial species in hydroponic cultivation and highlight the need for sterilization to recycle the discharged drainage. Samples were collected from a number of paprika, tomato, and strawberry hydroponic greenhouses. Vinyl and glass greenhouses were studied, and the drainage discharge was of two types: direct discharge and collection after discharge. In total, 24 fungal and six bacterial species were detected from 399 and 151 densities, respectively. The primary fungal and bacterial species identified were from the genera Fusarium, Pythium, and Phytophthora as well as Agrobacterium and Pseudomonas. Statistical analysis revealed that the species number and density of fungi and bacteria were higher in strawberry than in tomato or paprika. These values were higher for vinyl greenhouses than for glass greenhouses. This study on the reuse of drainage from hydroponic greenhouses may contribute to the recycling of resources and reduction in water pollutant emission; this will thus help us to implement sustainable horticulture practices.

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Section: Introductionmentioning

confidence: 99%

Variation in Pathogenic Organisms as Affected by Using Hydroponic Nutrient Wastewater in Horticultural Facilities

et al. 2022

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“…In recent years, some the incidence of disease has been increasing because of enlargement of the cultivation area and global warming. Among the diseases, bacterial canker and scab are known as the most detrimental diseases reducing the quality of Japanese apricot fruit in orchards ( Kim et al, 2005 , 2016 ).…”

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Epidemiological Characteristics of Scab of Japanese Apricot in Korea

Kim

Shin³

et al. 2017

The Plant Pathology Journal

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Scabs caused by Venturia carpophila greatly reduce the quality of the fruits of the Japanese apricot (Prunus mume) when the disease is not properly managed. The disease produces a superficial blemish that is unlikely to affect the overall yield of processed fruit, but reduce the value of fruit intended for the fresh market. Incidence rates of scab at sprayed and unsprayed orchards range from 0% to 21.5% and from 30.2% to 100%, respectively, in the major cultivation regions of Jeonnam Province during the growing season of 2009. The trends in disease progress were quite similar, regardless of regions, and cultivar Namgo was relatively less damaged by scab compared to cultivar Cheonmae among the tested Japanese apricot cultivars. The fruits on branches 1.5 m above the infected Japanese apricot trees and the stem-end parts of the infected fruits were more severely damaged by scabs, possibly because of rain and run-off facilitate dissemination of conidia of V. carpophila and subsequent infection of the fruits or branches. The conidia of V. carpophila were dispersed from March 24 to April 26 in 2010, and more conidia were dispersed from 2-year-old branches than 1-year-old branches. Since the control efficacies were higher than 90% after more than two applications of Trifloxystrobin WG at 10-day-intervals from mid April, it is that effective fungicides be applied at least two times at 10-day-intervals from the middle of April to manage scabs of Japanese apricot in orchards.

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“…In a previous work, we characterized the causal agent of bacterial canker of Japanese apricot in Korea using a polyphasic taxonomy approach and identified the pathogen as Pseudomonas syringae pv. morsprunorum (Kim et al, 2005). In addition to Japanese apricot, P. syringae pv.…”

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Genetic Diversity Among Pseudomonas syringae pv. morsprunorum Isolates from Prunus mume in Korea and Japan by Comparative Sequence Analysis of 16S rRNA Gene

Koh¹,

Sohn²,

Koh³

et al. 2012

The Plant Pathology Journal

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Genetic diversity among Pseudomonas syringae pv. morsprunorum isolates from Prunus mume in Korea and Japan was investigated by comparative sequence analysis of the 16S rRNA gene. The strains included 24 field isolates recovered from P. mume in Korea along with seven Japanese strains. Two strains isolated from P. salicina in Japan, one strain from P. avium in the United Kingdom, and the pathotype strain were also used for comparison with their 16S rRNA gene sequences. Nearly complete 16S rRNA gene sequences were sequenced in all 35 strains, and three sequence types, designated types I, II and III, were identified. Eleven strains consisting of five Korean isolates, five Japanese strains, and one strain from the United Kingdom belonged to type I, whereas the pathotype strain and another 19 Korean isolates belonged to type III. Another four Japanese strains belonged to type II. Type I showed 98.9% sequence homology with type III. Type I and II had only two heterogeneous bases. The 16S rRNA sequence types were correlated with the races of P. syringae pv. morsprunorum. Type I and II strains belonged to race 1, whereas type III isolates were included in race 2. Sequence analyses of the 16S rRNA gene from P. syringae pv. morsprunorum were useful in identifying the races and can further be used for epidemiological surveillance of this pathogen.

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Bacterial Canker of Japanese Apricot (Prunus mume) Caused by Pseudomonas syringae pv. morsprunorum

Cited by 3 publications

References 0 publications

Variation in Pathogenic Organisms as Affected by Using Hydroponic Nutrient Wastewater in Horticultural Facilities

Variation in Pathogenic Organisms as Affected by Using Hydroponic Nutrient Wastewater in Horticultural Facilities

Epidemiological Characteristics of Scab of Japanese Apricot in Korea

Genetic Diversity Among Pseudomonas syringae pv. morsprunorum Isolates from Prunus mume in Korea and Japan by Comparative Sequence Analysis of 16S rRNA Gene

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