Morphological and Molecular Characterization of Marssonina coronaria (Ellis &amp; J.J. Davis) J.J. Davis Causing Premature Leaf Fall

Phurailatpam, Sumitra; Sharma, J.N.; Brakta, Ajay; Sharma, S. K.; Sharma, Shweta

doi:10.20546/ijcmas.2019.806.333

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Las secuencias fueron depositadas en la base de datos de nucleótidos de NCBI bajo los números de acceso de GenBank MN535179, MN535180; MN535181 y MN535182. Estas regiones génicas ya han sido utilizadas con éxito por Lee et al, (19) para identifi car a Marssonina coronaria afectando plantaciones de manzanos de Gyeongbuk (Korea) y por Phurailatpam et al, (24) para manzanos de Himachal Pradesh (India) y han demostrado el potencial de las secuencias para la determinación de especies.…”

Section: Figura 2: Características Morfométricas De Colonia De M Coro...unclassified

Marssonina coronaria, NUEVO AGENTE CAUSAL DE MANCHAS FOLIARES EN MANZANOS DE BAJOS REQUERIMIENTOS DE FRIO DEL CENTRO DE ARGENTINA

Fernandez¹,

BERUTTI²,

Favaro³

et al. 2020

FAVE Sección Ciencias Agrarias

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Durante los años 2017-2018, una enfermedad fúngica causó una importante defoliación temprana en manzanos de los cvs `Caricia ́, `Princesa ́ y `Eva ́ del centro-este de la Provincia de Santa Fe. La sintomatología fue coincidente con la reportada para Marssonina spp. Con el objetivo de caracterizar la etiología de la enfermedad se obtuvieron 9 aislados, siendo 4 caracterizados morfométrica y molecularmente. Luego de 60 días, las colonias alcanzaron 10 mm de diámetro, con márgenes irregulares y coloración marrón. Los conidios, hialinos, ligeramente curvos, ovoides y bi-celulares midieron 15,23 ± 1,49 μm de largo y 5,47 ± 0,52 μm de ancho. Las secuencias de ITS indicaron 100% de identidad con Marssonina coronaria. Se confi rmó la patogenicidad de los aislados. Todas las inoculaciones produjeron síntomas y el patógeno fue re-aislado coincidiendo sus características con las inicialmente mencionadas. Este estudio constituye el primer reporte de M. coronaria afectando hojas de manzano en Argentina y proporciona información útil para diseñar estrategias de manejo.

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Section: Figura 2: Características Morfométricas De Colonia De M Coro...unclassified

Marssonina coronaria, NUEVO AGENTE CAUSAL DE MANCHAS FOLIARES EN MANZANOS DE BAJOS REQUERIMIENTOS DE FRIO DEL CENTRO DE ARGENTINA

Fernandez¹,

BERUTTI²,

Favaro³

et al. 2020

FAVE Sección Ciencias Agrarias

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Isolation, cloning and in silico analysis of β-tubulin gene from apple leaf blotch fungus Marssonina coronaria

Chauhan

Modgil

Rajam

et al. 2023

Indian Phytopathology

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Characterizations of an Emerging Disease: Apple Blotch Caused by Diplocarpon coronariae (syn. Marssonina coronaria) in the Mid-Atlantic United States

et al. 2022

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Apple orchards with minimal or reduced fungicide inputs in the Mid-Atlantic region of the United States have experienced outbreaks of severe premature defoliation with symptoms that matched those of apple blotch disease (ABD) caused by Diplocarpon coronariae. Fungal isolates obtained from symptomatic apple leaves and fruit produced uniform slow-growing dark grey colonies on peptone potato dextrose agar and had conidia. ITS DNA sequences matched with D. coronariae and Koch’s postulates were fulfilled when typical ABD symptoms occurred when re-inoculated onto apple leaves and fruit. Spore dispersal in non-fungicide treated orchards detected with qPCR was low in early spring and dropped to undetectable levels in late May and early June before rising exponentially to highs in July and August, which coincided with symptom development. Only low spore numbers were detected in fungicide treated orchards and nearby forests. In preliminary fungicide tests, fluxapyroxad, thiophanate methyl, and difenoconazole effectively inhibited mycelial growth of isolates in vitro. When apple cultivars ‘Fuji’ and ‘Honeycrisp’ were inoculated with D. coronariae, cv. ‘Honeycrisp’ showed delayed onset of symptoms and lower disease severity, and the transcription profile of seven host defense-related genes showed that PR-2, PR-8, LYK4, and CERK1 were highly induced in cv. ‘Honeycrisp’ at 2- and 5-days post inoculation. This is the first report of ABD in the Mid-Atlantic United States, which includes studies of seasonal D. coronariae spore dispersal patterns, preliminary fungicide efficacy, and host defense-related gene expression to assist development of best ABD management practices.

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Morphological and Molecular Characterization of Marssonina coronaria (Ellis & J.J. Davis) J.J. Davis Causing Premature Leaf Fall

Cited by 3 publications

References 4 publications

Marssonina coronaria, NUEVO AGENTE CAUSAL DE MANCHAS FOLIARES EN MANZANOS DE BAJOS REQUERIMIENTOS DE FRIO DEL CENTRO DE ARGENTINA

Marssonina coronaria, NUEVO AGENTE CAUSAL DE MANCHAS FOLIARES EN MANZANOS DE BAJOS REQUERIMIENTOS DE FRIO DEL CENTRO DE ARGENTINA

Isolation, cloning and in silico analysis of β-tubulin gene from apple leaf blotch fungus Marssonina coronaria

Characterizations of an Emerging Disease: Apple Blotch Caused by Diplocarpon coronariae (syn. Marssonina coronaria) in the Mid-Atlantic United States

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