Stem Rot of Strawberry Caused by Sclerotium rolfsii in Korea

Kwon, Jin-Hyeuk; Shen, Shun Shan; Park, Chang Seuk

doi:10.5423/ppj.2004.20.2.103

Cited by 3 publications

(3 citation statements)

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“…Punja (1985) reported that the optimum temperature for S. rolfsii mycelium growth ranged from 27 to 30°C. In another trial, S. rolfsii mycelium did not grow at temperatures < 15°C or > 40°C and the optimum was 30°C (Kwon and Park, 2002).…”

Section: Discussionmentioning

confidence: 94%

Levels of Sclerotium rolfsii inoculum influence identification of resistant genotypes in Jerusalem artichoke

Sennoi¹,

Jogloy²,

Saksirirat³

et al. 2012

Afr. J. Microbiol. Res.

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Improvement of Jerusalem artichoke genotypes with resistance to stem rot caused by the soil borne fungus Sclerotium rolfsii is a sustainable means for controlling the disease. However, this crop is rather new to breeders. A consensus screening procedure for resistance to the disease is not yet available. The aim of this study was to determine the level of inoculum that provides the reliable and effective results for screening trials. In the experiment in Khon Kaen, Thailand, four levels of sorghum seed infested with S. rolfsii (1, 2, 3 or 4 seeds/plant) were tested with 10 Jerusalem artichoke genotypes. Plants inoculated with one sorghum seed had the lowest disease incidence, whereas plants inoculated with four sorghum seeds had the highest disease incidence. Most pairings of inoculum levels were statistically different for disease incidence except for two vs. three seeds. In addition, permanent wilting and area under disease progress curve occurred more rapidly with four seeds compared to the other inoculum levels. The highest variation among Jerusalem artichoke genotypes was observed in the plants inoculated with three sorghum seeds. Therefore, three sorghum seeds inoculum was suitable to identify Jerusalem artichoke genotypes resistant to S. rolfsii. Based on days to permanent wilting, resistant and susceptible genotypes were identified.

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Section: Discussionmentioning

confidence: 94%

Levels of Sclerotium rolfsii inoculum influence identification of resistant genotypes in Jerusalem artichoke

Sennoi¹,

Jogloy²,

Saksirirat³

et al. 2012

Afr. J. Microbiol. Res.

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“…Notably, variations in disease incidence caused by S. rolfsii have been observed worldwide. For example, in stem rot of tomatoes in Korea, the disease rate was 8.2% [ 29 ]; in contrast, disease rates have been reported to be as high as 22% in pumpkin fields in India [ 10 ], 30% in candy leaf plants in Italy [ 30 ], 10% in Chinese Macleaya cordata [ 31 ], and 30–35% in common beans in India [ 32 ]. Moreover, wild coffee plants in India have been reported to have a high disease incidence of 47.36% [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic Placement and Morphological Characterization of Sclerotium rolfsii (Teleomorph: Athelia rolfsii) Associated with Blight Disease of Ipomoea batatas in Korea

et al. 2017

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In this study, we aimed to characterize fungal samples from necrotic lesions on collar regions observed in different sweetpotato growing regions during 2015 and 2016 in Korea. Sclerotia appeared on the root zone soil surface, and white dense mycelia were observed. At the later stages of infection, mother roots quickly rotted, and large areas of the plants were destroyed. The disease occurrence was monitored at 45 and 84 farms, and 11.8% and 6.8% of the land areas were found to be infected in 2015 and 2016, respectively. Fungi were isolated from disease samples, and 36 strains were preserved. Based on the cultural and morphological characteristics of colonies, the isolates resembled the reference strain of Sclerotium rolfsii. Representative strains were identified as S. rolfsii (teleomorph: Athelia rolfsii) based on phylogenetic analysis of the internal transcribed spacer and large subunit genes along with morphological observations. To test the pathogenicity, sweetpotato storage roots were inoculated with different S. rolfsii strains. ‘Yulmi’ variety displayed the highest disease incidence, whereas ‘Pungwonmi’ resulted in the least. These findings suggested that morphological characteristics and molecular phylogenetic analysis were useful for identification of S. rolfsii.

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“…are the largest class of fungal pathogens and cause serious crop losses worldwide. It is the causal agent of stem rot and the most common non-host ascomycetes fungal pathogen capable of infecting over 400 plant species primarily dicotyledonous herbs from 278 genera and 75 families, including tomato (Kwon and Park, 2002 ). Typical visible disease symptoms include appearance of white silky and thread-like mycelia on the fruits.…”

Section: Introductionmentioning

confidence: 99%

Proteometabolomic Study of Compatible Interaction in Tomato Fruit Challenged with Sclerotinia rolfsii Illustrates Novel Protein Network during Disease Progression

et al. 2016

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Fruit is an assimilator of metabolites, nutrients, and signaling molecules, thus considered as potential target for pathogen attack. In response to patho-stress, such as fungal invasion, plants reorganize their proteome, and reconfigure their physiology in the infected organ. This remodeling is coordinated by a poorly understood signal transduction network, hormonal cascades, and metabolite reallocation. The aim of the study was to explore organ-based proteomic alterations in the susceptibility of heterotrophic fruit to necrotrophic fungal attack. We conducted time-series protein profiling of Sclerotinia rolfsii invaded tomato (Solanum lycopersicum) fruit. The differential display of proteome revealed 216 patho-stress responsive proteins (PSRPs) that change their abundance by more than 2.5-fold. Mass spectrometric analyses led to the identification of 56 PSRPs presumably involved in disease progression; regulating diverse functions viz. metabolism, signaling, redox homeostasis, transport, stress-response, protein folding, modification and degradation, development. Metabolome study indicated differential regulation of organic acid, amino acids, and carbohydrates paralleling with the proteomics analysis. Further, we interrogated the proteome data using network analysis that identified two significant functional protein hubs centered around malate dehydrogenase, T-complex protein 1 subunit gamma, and ATP synthase beta. This study reports, for the first-time, kinetically controlled patho-stress responsive protein network during post-harvest storage in a sink tissue, particularly fruit and constitute the basis toward understanding the onset and context of disease signaling and metabolic pathway alterations. The network representation may facilitate the prioritization of candidate proteins for quality improvement in storage organ.

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Stem Rot of Strawberry Caused by Sclerotium rolfsii in Korea

Cited by 3 publications

References 0 publications

Levels of Sclerotium rolfsii inoculum influence identification of resistant genotypes in Jerusalem artichoke

Levels of Sclerotium rolfsii inoculum influence identification of resistant genotypes in Jerusalem artichoke

Phylogenetic Placement and Morphological Characterization of Sclerotium rolfsii (Teleomorph: Athelia rolfsii) Associated with Blight Disease of Ipomoea batatas in Korea

Proteometabolomic Study of Compatible Interaction in Tomato Fruit Challenged with Sclerotinia rolfsii Illustrates Novel Protein Network during Disease Progression

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