Evaluation of Malus germplasm resistance to marssonina apple blotch

Li, Yin; Li, Mingjun; Ke, Xiwang; Li, Cuiying; Zou, Yangjun; Liang, Dong; Ma, Fengwang

doi:10.1007/s10658-013-0190-y

Cited by 28 publications

(13 citation statements)

References 8 publications

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“…5). Our results for these two cultivars were similarly to those reported by (Chen et al 2012;Duan 2012;Li et al 2013), but different from those stated by (Zhang et al 1994;Yin et al 2013a;Zhang et al 2014) in which 'Golden Delicious' was resistant to the pathogen. This may be explained by use of a different race of the pathogen and inoculation of leaves at a different stage of maturation (Johnson et al 2000).…”

Section: R a F Tcontrasting

confidence: 54%

Genome-wide identification and expression analysis of the apple ASR gene family in response to Alternaria alternata f. sp. mali

Huang

Zhong

et al. 2016

Genome

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The ABA/water stress/ripening-induced (ASR) gene family exists universally in higher plants, and many ASR genes are up-regulated during periods of environmental stress and fruit ripening. Although a considerable amount of research has been performed investigating ASR gene response to abiotic stresses, relatively little is known about their roles in response to biotic stresses. In this report, we identified five ASR genes in apple (Malus × domestica) and explored their phylogenetic relationship, duplication events, and selective pressure. Five apple ASR genes (Md-ASR) were divided into two clades based on phylogenetic analysis. Species-specific duplication was detected in M. domestica ASR genes. Leaves of 'Golden delicious' and 'Starking' were infected with Alternaria alternata f. sp. mali, which causes apple blotch disease, and examined for the expression of the ASR genes in lesion areas during the first 72 h after inoculation. Md-ASR genes showed different expression patterns at different sampling times in 'Golden delicious' and 'Starking'. The activities of stress-related enzymes, peroxidase (POD), superoxide dismutase (SOD), catalase (CAT), phenylalanine ammonia lyase (PAL), and polyphenoloxidase (PPO), and the content of malondialdehyde (MDA) were also measured in different stages of disease development in two cultivars. The ASR gene expression patterns and theses physiological indexes for disease resistance suggested that Md-ASR genes are involved in biotic stress responses in apple.

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Section: R a F Tcontrasting

confidence: 54%

Genome-wide identification and expression analysis of the apple ASR gene family in response to Alternaria alternata f. sp. mali

Huang

Zhong

et al. 2016

Genome

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“…The Marssonina apple blotch caused by the fungus Marssonina coronaria is one of the most prevalent apple diseases in East Asia and China. Most of the widely-grown apple cultivars in China, such as “Fuji” and “Gala” apples, are highly susceptible to M. coronaria , while “Qinguan,” a local bred apple cultivar, has demonstrated high resistance with lower incidence of infection (Yin et al, 2013 ). However, the anti-fungal molecular mechanism in this cultivar remains unknown.…”

Section: Introductionmentioning

confidence: 99%

Dynamic transcription profiles of “Qinguan” apple (Malus × domestica) leaves in response to Marssonina coronaria inoculation

Jiao

et al. 2015

Front. Plant Sci.

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Marssonina apple blotch, caused by the fungus Marssonina coronaria, is one of the most destructive apple diseases in China and East Asia. A better understanding of the plant's response to fungi during pathogenesis is urgently needed to improve plant resistance and to breed resistant cultivars. To address this, the transcriptomes of “Qinguan” (a cultivar with high resistance to M. coronaria) apple leaves were sequenced at 12, 24, 48, and 72 h post-inoculation (hpi) with Marssonina coronaria. The comparative results showed that a total of 1956 genes were differentially expressed between the inoculated and control samples at the 4 time points. Gene ontology (GO) term enrichment analysis of differentially expressed genes (DEGs) revealed changes in cellular component, secondary metabolism including chalcone isomerase activity, phytoalexin biosynthetic process, anthocyanin-containing compound biosynthetic process, lignin biosynthetic process, positive regulation of flavonoid biosynthetic process; and molecular functions or biological processes related to the defense response, biotic stimulus response, wounding response and fungus response. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that DEGs were significantly enriched in flavonoid biosynthesis, vitamin B6 metabolism, phenylpropanoid biosynthesis, and the stilbenoid, diarylheptanoid and gingerol biosynthesis pathways. Furthermore, the importance of changes in cellular components and partial polyphenol compounds when encountering M. coronaria are discussed.

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“…Favorable conditions for infections include 23.5°C and 20 mm of rain; for disease development a daily temperature of 25°C and 20 mm of rain are required (Park et al, 2013). Fuji and Golden Delicious apples are highly susceptible to AMB (Yin et al, 2013). About half of the Fuji apple orchards in South Korea have been infected by Apple Marssonina Blotch disease.…”

Section: Introductionmentioning

confidence: 99%

State of Knowledge of Apple Marssonina Blotch (AMB) Disease among Gunwi Farmers

Posadas

Lee

Galindo‐Gonzalez

et al. 2016

Journal of Biosystems Engineering

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Purpose: Fuji apples are one of the top selling exports for South Korea bringing in over $233.4 million in 2013. However, during the last few decades, about half of the Fuji apple orchards have been infected by Apple Marssonina Blotch disease (AMB), a fungal disease caused by Diplocarpon mali., which takes about 40 days to exhibit obvious visible symptoms. Infected leaves turn yellow and begin growing brown lesions. AMB promotes early defoliation and reduces the quality and quantity of apples an infected tree can produce. Currently, there is no prediction model for AMB on the market. Methods: The Precision Agriculture Laboratory (PAL) at the University of Florida (UF) has been working with the National Academy of Agricultural Science, Rural Development Administration, South Korea to investigate the use of hyperspectral data in creating an early detection method for AMB. The RDA has been researching hyperspectral techniques for disease detection at their Apple Research Station in Gunwi since 2012 and disseminates its findings to the local farmers. These farmers were surveyed to assess the state of knowledge of AMB in the area. Out of a population of about 750 growers, 111 surveys were completed (confidence interval of +/-8.59%, confidence level of 95%, p-value of 0.05). Results: The survey revealed 32% of the farmers did not know what AMB was, but 45% of farmers have had their orchards infected by AMB. Twenty-five percent could not distinguish AMB from other symptoms. Overwhelmingly, 80% of farmers strongly believed an early detection method for AMB was necessary. Conclusions: The results of the survey will help to evaluate the outreach programs of the RDA so they can more effectively educate farmers on the identifying, treating, and mediating AMB.

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Evaluation of Malus germplasm resistance to marssonina apple blotch

Cited by 28 publications

References 8 publications

Genome-wide identification and expression analysis of the apple ASR gene family in response to Alternaria alternata f. sp. mali

Genome-wide identification and expression analysis of the apple ASR gene family in response to Alternaria alternata f. sp. mali

Dynamic transcription profiles of “Qinguan” apple (Malus × domestica) leaves in response to Marssonina coronaria inoculation

State of Knowledge of Apple Marssonina Blotch (AMB) Disease among Gunwi Farmers

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