2013
DOI: 10.1111/efp.12063
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Informative value of canker morphology on the presence or absence of virus infection in chestnut blight cankers

Abstract: Summary Chestnut blight destroyed the native chestnut forests in North America and also severely affected the European chestnut trees after its introduction in the 20th century. The ascomycete fungus Cryphonectria parasitica is responsible for this serious disease and causes lethal bark cankers on susceptible chestnut trees. In Europe, however, an infection of C. parasitica with Cryphonectria hypovirus 1 (CHV‐1) causes hypovirulence in C. parasitica and reduces the severity of the disease. Hypovirulence biolog… Show more

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Cited by 15 publications
(10 citation statements)
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“…Thus, we targeted healed and healing cankers, perhaps limiting our sample base. As later reported by Bryner et al (2013), canker morphology does not always reflect hypovirus infection. Canker morphology may also be influenced by host ontogenic factors or environmental conditions (Bazzigher 1980), or by the partial blight resistance of European chestnut (Graves 1950;Berry 1960).…”
Section: Discussionmentioning
confidence: 61%
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“…Thus, we targeted healed and healing cankers, perhaps limiting our sample base. As later reported by Bryner et al (2013), canker morphology does not always reflect hypovirus infection. Canker morphology may also be influenced by host ontogenic factors or environmental conditions (Bazzigher 1980), or by the partial blight resistance of European chestnut (Graves 1950;Berry 1960).…”
Section: Discussionmentioning
confidence: 61%
“…In addition, the incomplete movement of hypovirus within fungal mycelium or the possible disappearance of CHV‐1 in healed cankers (Bryner et al. ) may also explain the low presence of CHV‐1 among our sampled cankers. Thus, our sampling design could have only detected a part of the hypovirus population.…”
Section: Discussionmentioning
confidence: 92%
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“…The tree may react to canker by producing epicormic shoots below it. Non-lethal, superficial or callusing cankers on susceptible host trees are usually associated with mycovirus-induced hypovirulence (Bryner et al, 2013).…”
Section: Introductionmentioning
confidence: 99%