<i>Phytophthora cryptogea</i> causing ink disease of <i>Castanea sativa</i> newly reported in Greece

Perlerou, C.; Tziros, George T.; Vettraino, Anna Maria; Diamandis, S.

doi:10.1111/j.1365-3059.2010.02268.x

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…Moreover, those Phytophthora species that were detected at lower frequency in this study can also be extremely dangerous. For instance, P. cryptogea , a species adapted to more temperate conditions, and able to attack many widespread broadleaved trees (Vettraino et al ., , ; Perlerou et al ., ), was isolated from Prunus laurocerasus . In temperate Europe, P. laurocerasus is one of the most commonly planted ornamental shrubs in gardens and parks, naturalized, and even invasive, in some areas (EPPO, ).…”

Section: Discussionmentioning

confidence: 99%

The potential of symptomless potted plants for carrying invasive soilborne plant pathogens

et al. 2015

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Aim The most common pathway for the movement of plant pests across borders is the horticultural trade in live plants, especially potted ornamentals. Soilborne pathogens, possibly alien and potentially invasive, have a higher possibility of surviving transportation and becoming established at their destination if they are carried in potted plants. The European Union (EU) has an open‐door phytosanitary system, under which any plant that is not specifically regulated can be imported. Inspections are focussed on a small number of economically important plant pests and even then limited to visual examinations of the aerial parts of the plant. Inspections fail to detect regulated pests or others internal to the tissues, or in the soil, if plants appear asymptomatic, or if incipient symptoms are limited to the roots. Phytophthora, a soilborne pathogen universally infamous for its ruinous outbreaks, but poorly regulated in Europe, was chosen to illustrate the risk inherent in the nursery pathway. The aim of this study was to demonstrate the level of infestation by Phytophthora in ornamental plants largely traded to, from and within Europe. Location European Union. Methods As Phytophthora species are not easily isolated, a real‐time PCR assay was developed, based on a genus‐specific TaqMan MGB probe, to detect the pathogens in plant tissues or soil even when present at low concentrations, and before symptoms occurred. Phytophthora species were identified by isolation and sequencing of the ITS (internal transcribed spacer) region. Results Phytophthora was detected by qPCR in 87% of the tested pots and in 70% of the asymptomatic potted plants. Potted plants in soil carried several Phytophthora species without showing any external symptoms. Main conclusions The results of this study strongly support the case for more rigorous European legislation on the trade of live plants in pots. As eradication of soilborne organisms is difficult, if not impossible, an embargo on plant movements into the EU and between member states is the only advisable measure against the spread of these pathogens.

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Section: Discussionmentioning

confidence: 99%

The potential of symptomless potted plants for carrying invasive soilborne plant pathogens

et al. 2015

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“…1c ) ( Jung et al 2018 ). Several other Phytophthora species of minor impact were found associated with declining chestnuts in Europe, including P. cactorum , P. cryptogea , P. gonapodyides , P. megasperma , P. nicotianae , P. plurivora , P. pseudosyringae , P. sansomeana and P. syringae ( Vettraino et al 2005 , Černý et al 2008 , Perlerou et al 2010 , Scanu et al 2010 , Jung et al 2013b ). The recently described P. castanetorum , a close relative of P. quercina , was isolated alongside other Phytophthora spp.…”

Section: Soilborne Phytophthora Diseases In Forests and Woodlandsmentioning

confidence: 99%

Canker and decline diseases caused by soil- and airborne Phytophthora species in forests and woodlands

Jung

Pérez‐Sierra

Durán³

et al. 2018

persoonia

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Most members of the oomycete genus Phytophthora are primary plant pathogens. Both soil- and airborne Phytophthora species are able to survive adverse environmental conditions with enduring resting structures, mainly sexual oospores, vegetative chlamydospores and hyphal aggregations. Soilborne Phytophthora species infect fine roots and the bark of suberized roots and the collar region with motile biflagellate zoospores released from sporangia during wet soil conditions. Airborne Phytophthora species infect leaves, shoots, fruits and bark of branches and stems with caducous sporangia produced during humid conditions on infected plant tissues and dispersed by rain and wind splash. During the past six decades, the number of previously unknown Phytophthora declines and diebacks of natural and semi-natural forests and woodlands has increased exponentially, and the vast majority of them are driven by introduced invasive Phytophthora species. Nurseries in Europe, North America and Australia show high infestation rates with a wide range of mostly exotic Phytophthora species. Planting of infested nursery stock has proven to be the main pathway of Phytophthora species between and within continents. This review provides insights into the history, distribution, aetiology, symptomatology, dynamics and impact of the most important canker, decline and dieback diseases caused by soil- and airborne Phytophthora species in forests and natural ecosystems of Europe, Australia and the Americas.

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“…Al comparar estas características con las claves taxonómicas de Erwin y Ribeiro (1996) y de Martin et al (2012) éstas corresponden a la especie Phytophthora drechsleri. Es importante señalar que en ambas claves se menciona una estrecha relación de esta especie con P. cryptogea, aunque cabe destacar que también se mencionan algunas diferencias entre ambas especies, una de las principales es la temperatura máxima de crecimiento, para P. cryptogea existen reportes que indican que no puede crecer a temperaturas de 35 °C o mayores (Perlerou et al, 2010;Kurtbetli, 2014) mientras que para P. drechsand Martin et al (2012), they correspond to the species Phytophthora drechsleri. It is important to point out that both keys mention a relationship between this species and P. cryptogea, although there are also differences between species.…”

Section: Fully Bilingualunclassified

“…It is important to point out that both keys mention a relationship between this species and P. cryptogea, although there are also differences between species. One of the most important is the maximum growth temperature, since there are reports indicating that P. cryptogea can not grow in temperatures of 35 °C or above (Perlerou et al, 2010;Kurtbetli, 2014), whereas reports for P. drechsleri indicate it can grow in temperatures of up to 37 °C. There are other differences between both, such as the size of oospores and antheridia: P. drechsleri produces oospores sized approximately 25.6 µm and the oospores from P. cryptogea are smaller, with sizes of around 22 µm.…”

Section: Fully Bilingualmentioning

confidence: 99%

Phytophthora hydropathica y Phytophthora drechsleri aisladas de canales de irrigación del Valle de Culiacán

Ãlvarez-RodrÃguez

GarcÃa-Estrada

Valdez-Torres

et al. 2017

RMF

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Phytophthora cryptogea causing ink disease of Castanea sativa newly reported in Greece

Cited by 9 publications

References 4 publications

The potential of symptomless potted plants for carrying invasive soilborne plant pathogens

The potential of symptomless potted plants for carrying invasive soilborne plant pathogens

Canker and decline diseases caused by soil- and airborne Phytophthora species in forests and woodlands

Phytophthora hydropathica y Phytophthora drechsleri aisladas de canales de irrigación del Valle de Culiacán

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