Characterization of Fusarium circinatum from Pinus spp. in northern Spain

Pérez‐Sierra, A.; Landeras, E.; León, Maela; Berbegal, Mónica; García‐Jiménez, J.; Armengol, Josep

doi:10.1016/j.mycres.2007.05.009

Cited by 76 publications

(83 citation statements)

References 27 publications

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“…Perez-Sierra et al (2007) sampled populations of F. circinatum from P. radiata, Pinus nigra, P. pinaster and P. sylvestris in three adjacent, autonomous communities (Galicia, Asturias and Cantabria) on the north coast of Spain, where they found both mating types of the fungus to be present. This implies that the pathogen has the capacity for sexual reproduction, although additional evidence is required to demonstrate that out-crossing actually occurs in these populations.…”

Section: Introductionmentioning

confidence: 99%

A genetically homogenous population of Fusarium circinatum causes pitch canker of Pinus radiata in the Basque Country, Spain

et al. 2011

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Pitch canker, caused by Fusarium circinatum, is a destructive disease of Pinus species and has recently been shown to represent a substantial threat to natural and commercial forests in northern Spain. The genetic diversity of F. circinatum in the Basque Country of Spain was assessed by characterising 96 isolates based on vegetative compatibility groups (VCGs), mating type assays, polymorphic DNA-markers and amplified fragment length polymorphism (AFLP) analyses. For this purpose, F. circinatum isolates were collected from diseased Pinus radiata as well as from insects associated with this host. Overall, a low level of diversity was detected in the population. The isolates represented only two VCGs and they were all of the same mating type. AFLP analyses revealed three genotypes and polymorphic DNA-markers specific for F. circinatum showed nine genotypes. The most common genotypes represented 97 % of all isolates for AFLP analysis and 68 % of isolates for the polymorphic DNA-marker sets. Over all, this indicates that pitch canker in the Basque Country of Spain is caused by a clonally propagating population of F. circinatum, typical of a recently introduced pathogen.

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Section: Introductionmentioning

confidence: 99%

A genetically homogenous population of Fusarium circinatum causes pitch canker of Pinus radiata in the Basque Country, Spain

et al. 2011

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“…Seven to eight-month-old seedlings of P. nigra were all dead 29 days after inoculation with Spanish isolates of F. circinatum, but those of Pinus pinaster and P. sylvestris died 49 and 56 days after inoculation, respectively (Perez-Sierra et al, 2007). In this study, some seedlings began to die 46 days after inoculation.…”

Section: Resultsmentioning

confidence: 45%

“…A few studies on variation in virulence of the pitch canker fungus have been reported (Gordon et al, 2001;Hodge and Dvorak, 2007;Perez-Sierra et al, 2007), and the variation could result from introduction of new strains, recombination by out-crossing, or mutation. Virulence of seven isolates of F. circinatum from seeds, seedlings, and mature trees of four pine species has been evaluated in northern Spain, and all isolates were pathogenic and the virulence was significantly different within each species (Perez-Sierra et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

“…Virulence of seven isolates of F. circinatum from seeds, seedlings, and mature trees of four pine species has been evaluated in northern Spain, and all isolates were pathogenic and the virulence was significantly different within each species (Perez-Sierra et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

“…Recently, the disease occurred more often on sapling stands of a native two-needle pine P. thunbergii on the roadside and a golf course in Jeju Island. The isolates of F. circinatum obtained from different pine hosts, for example, P. nigra, P. pinaster, P. sylvestris, and P. radiata in Spain (Perez-Sierra et al, 2007) and P. taeda, and P. elliottii in USA (Hodge and Dvorak, 2007), were tested for virulence. However, virulence to P. thunbergii isolates of F. circinatum has not been reported previously.…”

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Assessment of Pathogenic Variation against Pitch Canker Pathogen, Fusarium circinatum in Pinus thunbergii and Responses of Natural Selection Pinus × rigitaeda to Branch Inoculation in a Seed Orchard

Woo¹,

Yoon²,

Han³

et al. 2010

The Plant Pathology Journal

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A half-sib family of two 4-year-old seedlings of Pinus × rigitaeda was inoculated with each of 20 Pinus thunbergii isolates of Fusarium circinatum (syn. Fusarium subglutinans f. sp. pini) from two pitch canker damaged sites in Jeju Island, South Korea. Initial symptoms of needle damages were visible on most of the seedlings at 18 days after inoculation. The 20 tested isolates were not significantly different in virulence, based on lesion lengths at the site of inoculation (P = 0.217). The most virulent isolate FT-7 showed the longest lesion length. Some seedlings began to die 46 days after inoculation. All seedlings were dead by 68 days after inoculation except two seedlings inoculated with each of isolates FS-2 and FS-13, respectively. Using the FT-7, 38-year-old 11 P. × rigitaeda trees, which were survived from a seed orchard severely damaged by pitch canker, were inoculated on branches in the seed orchard in Jeju Island to assess differences in susceptibility to pitch canker. The 11 trees differed significantly (P < 0.001) in susceptibility to F. circinatum based on average lesion lengths measured 56 days after inoculation. It is possible that induced resistance contributed to their capacity to limit lesion development. The susceptibility of natural selection P. × rigitaeda trees are more likely affected by interaction with F. circinatum rather than environmental conditions.

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Field and Laboratory Procedures for Fusarium circinatum Identification and Diagnosis

2022

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Characterization of Fusarium circinatum from Pinus spp. in northern Spain

Cited by 76 publications

References 27 publications

A genetically homogenous population of Fusarium circinatum causes pitch canker of Pinus radiata in the Basque Country, Spain

A genetically homogenous population of Fusarium circinatum causes pitch canker of Pinus radiata in the Basque Country, Spain

Assessment of Pathogenic Variation against Pitch Canker Pathogen, Fusarium circinatum in Pinus thunbergii and Responses of Natural Selection Pinus × rigitaeda to Branch Inoculation in a Seed Orchard

Field and Laboratory Procedures for Fusarium circinatum Identification and Diagnosis

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