Colletotrichum fructicola is the dominant and one of the most aggressive species causing bitter rot of apple in Uruguay

Alaniz, Sandra; Hernández, Luis Fernando García; Mondino, Pedro

doi:10.1007/s40858-015-0025-9

Cited by 29 publications

(18 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Colletotrichum species are considered as major pathogens associated with pre-and postharvest fruit diseases (Alaniz et al 2015;Cannon et al 2012;Dean et al 2012;Phoulivong et al 2010). Apple bitter rot caused by Colletotrichum spp.…”

Section: Colletotrichum Sppmentioning

confidence: 99%

Latent postharvest pathogens of pome fruit and their management: from single measures to a systems intervention approach

Wenneker

Thomma

2020

Eur J Plant Pathol

View full text Add to dashboard Cite

Postharvest diseases of pome fruit are typically caused by a wide diversity of fungal pathogens, and the list of confirmed causal agents is still growing. There is considerable knowledge on the epidemiology of wound pathogens, such as Botrytis cinerea and Penicillium expansum. In contrast, knowledge on the occurrence of the different postharvest diseases caused after latent (quiescent) infections during long-term storage and their epidemiology is limited. Well-known pathogens causing postharvest losses after latent infections are Neofabraea spp. and Colletotrichum spp., but in many cases the causal agents that occur in a specific region remain unknown and their control relies on the routine use of fungicide applications. However, due to the growing concern over the use of synthetic fungicides, alternative control measures are highly desired. Over the past years the use of physical treatments, natural compounds, and biocontrol agents have been investigated as alternatives. However, no single method has emerged that can robustly and reliably control postharvest diseases of pome fruit in practice. In this review it is argued to approach latent postharvest diseases as complex problems that require multiple interventions at different stages of the disease process in a systems intervention approach for their control. Such approach requires a deep understanding of the epidemiology of the causal agents in the orchard, fruit defence mechanisms against pathogens, and the molecular biology of host-pathogen interactions in order to develop novel disease control methods in which the deployment of resistant cultivars can be a cornerstone.

show abstract

Section: Colletotrichum Sppmentioning

confidence: 99%

Latent postharvest pathogens of pome fruit and their management: from single measures to a systems intervention approach

Wenneker

Thomma

2020

Eur J Plant Pathol

View full text Add to dashboard Cite

show abstract

“…ABR is a fruit disease that occurs in countries where apple trees are cultivated (Alaniz et al 2015; Munir et al 2016). It causes important losses especially during favourable environmental conditions, rainy and warm climate (Wang et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…It causes important losses especially during favourable environmental conditions, rainy and warm climate (Wang et al 2015). Typical symptoms of ABR include light brown, slightly sunken lesions that enlarge over time becoming dark brown and water soaked (Alaniz et al 2015; Velho et al 2015). …”

Section: Introductionmentioning

confidence: 99%

Extracellular enzymes ofColletotrichum fructicola isolates associated to Apple bitter rot and Glomerella leaf spot

2018

Self Cite

View full text Add to dashboard Cite

Colletotrichum fructicola causes two important diseases on apple in Southern Brazil, bitter rot (ABR) and Glomerella leaf spot (GLS). In this pathosystem, the Colletotrichum ability to cause different symptoms could be related to differences of extracellular enzymes produced by the fungi. Thus, the objectives of this study were to compare the production of these enzymes between ABR- and GLS-isolate in vitro and to evaluate their involvement on infected apple leaves with C. fructicola. In agar plate enzymatic assay, ABR- showed significantly higher amylolytic and pectolytic activity than GLS-isolate. In contrast, for lipolytic and proteolytic no significant differences were observed between isolates. In culture broth, ABR-isolate also had higher activity of pectin lyase (PNL), polygalacturonase (PG) and laccase (LAC). Notably, LAC was significantly five-fold higher in ABR- than GLS-isolate. On the other hand, in infected apple leaves no significant difference was observed between isolates for PNL, PG and LAC. Although differences in extracellular enzymes of ABR- and GLS-isolate have not been observed in vivo, these results contributed to highlight the importance to investigate such enzymes in depth.

show abstract

“…La Podredumbre Amarga (PA) es una de las enfermedades más comunes y destructivas de los frutos del manzano en regiones con veranos cálidos y lluviosos (Ogawa e English, 1991;Sutton, 1990). En Uruguay, cuando ocurren condiciones ambientales favorables para el desarrollo de esta enfermedad, las pérdidas de fruta pueden ser superiores al 50 % (Alaniz et al, 2012(Alaniz et al, , 2015Velho et al, 2015). El daño principal consiste en una pudrición blanda que puede causar la destrucción total del fruto.…”

Section: Introductionunclassified

“…La PA es ocasionada por diferentes especies de Colletotrichum. En Uruguay, C. fructicola es la especie predominante y con menor frecuencia aparecen C. theobromicola, C. melonis y una especie de Colletotrichum aún no identificada (Alaniz et al, 2015). C. fructicola también ha sido citada como la especie predominante en Brasil y China (Velho et al, 2015;Fu et al 2013), mientras que C. fiorinae es la que predomina en Kentucky (Munir, 2015).…”

Section: Introductionunclassified

Sitios y estructuras de sobrevivencia de Colletotrichum spp., causante de la podredumbre amarga del manzano

et al. 2016

View full text Add to dashboard Cite

La podredumbre amarga de los frutos, ocasionada por especies de Colletotrichum, es una de las enfermedades que causa mayores pérdidas en el cultivo del manzano en regiones de clima húmedo. En Uruguay, su importancia se acrecienta cuando ocurren veranos cálidos y lluviosos. Luego de la cosecha, Colletotrichum spp. debe recurrir a mecanismos de sobrevivencia que garanticen su presencia en la siguiente temporada de producción. El conocer con exactitud cómo sobrevive este patógeno permitiría ajustar estrategias de manejo con el fin de reducir la disponibilidad de inóculo inicial. El objetivo de este trabajo fue elucidar los lugares y las estructuras de sobrevivencia de Colletotrichum spp. en el campo. Para ello, en un monte comercial de manzano con antecedentes de podredumbre amarga se colectaron muestras de diferentes partes de la planta (ramas, yemas fructíferas y frutos momificados) y del suelo (restos de podas y frutos momificados) en diferentes momentos durante dos años consecutivos. Las muestras fueron procesadas con el fin de detectar la presencia de estructuras vegetativas o reproductivas de este patógeno. Se constató la presencia de Colletotrichum spp. sobre los árboles, principalmente sobre la madera de las ramas. No fue posible encontrar el patógeno sobreviviendo en frutos momificados ni en restos de poda sobre el suelo. Las estructuras detectadas fueron masas de micelio y cirros de conidios, y en ningún caso se encontraron peritecios con ascas y ascosporas.

show abstract

Colletotrichum fructicola is the dominant and one of the most aggressive species causing bitter rot of apple in Uruguay

Cited by 29 publications

References 42 publications

Latent postharvest pathogens of pome fruit and their management: from single measures to a systems intervention approach

Latent postharvest pathogens of pome fruit and their management: from single measures to a systems intervention approach

Extracellular enzymes ofColletotrichum fructicola isolates associated to Apple bitter rot and Glomerella leaf spot

Sitios y estructuras de sobrevivencia de Colletotrichum spp., causante de la podredumbre amarga del manzano

Contact Info

Product

Resources

About