<i>Neofabraea populi</i>in Hybrid Aspen Stands in Southern Finland

Kasanen, Risto; Hantula, Jarkko; Kurkela, Timo

doi:10.1080/028275802320435405

Cited by 13 publications

(6 citation statements)

References 8 publications

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“…Finland (Kasanen et al 2002). The nature of genetic variation found in C. fraxinea was more similar to that in Chondrostereum purpureum (Pers.…”

Section: Discussionmentioning

confidence: 68%

“…In this study, RAMS fingerprinting of 32 C. fraxinea isolates revealed considerable genetic variation among the isolates. The amount of variation (5 out of 13 bands variable) and the number of haplotypes (14 among 32 isolates) is high when compared, for example, with Neofabrea populi Thomson, another recent arrival in Finland that showed no variation in RAMS fingerprinting (Kasanen et al. 2002).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

First record of Chalara fraxinea in Finland and genetic variation among isolates sampled from Åland, mainland Finland, Estonia and Latvia

Rytkönen¹,

Lilja²,

Drenkhan

et al. 2010

Forest Pathology

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“…Finland (Kasanen et al 2002). The nature of genetic variation found in C. fraxinea was more similar to that in Chondrostereum purpureum (Pers.…”

Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 99%

First record of Chalara fraxinea in Finland and genetic variation among isolates sampled from Åland, mainland Finland, Estonia and Latvia

Rytkönen¹,

Lilja²,

Drenkhan

et al. 2010

Forest Pathology

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“…Prior basidiomycetes wood of aspens is often colonized by anamorphic ascomycetes, causing wood straining as an initiation of decay [13,14]. Additionally, several types of cankers have been described as aggressive and causing extensive infection in various Populus species [2,15,16], and outbreaks have been reported in the Baltic States and Fennoscandia [1,[17][18][19]. Knowledge about woodinhabiting fungal communities is important for analysis of their interactions in wood to model, control, and predict decay and pathogenicity [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Frost Cracks Show a Slight Effect on Fungal Richness in Stem Wood of Hybrid Aspen Trees in Latvia

Kļaviņa,

Matisons,

Auniņa

et al. 2023

Diversity

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Hybrid aspen Populus tremula L. × Populus tremuloides Michx. is fast-growing and a potential source of biomass for bioenergy production in Europe. However, knowledge about the phytopathological risks to hybrid aspen clones, particularly about frost crack damage as a possible infection gateway of fungal infections, is scarce. Five clones, represented by 205 trees from three trials in Latvia, were studied; two wood samples (at root collar and 1.3 m height) were obtained from each tree. Wood-inhabiting fungi were isolated and identified by the morphology and sequencing of the ITS region with fungal-specific primers, and fungal communities were compared using PERMANOVA. Fungal communities from trees with stem cracks were richer in species, especially pathogens, and species richness was higher in samples collected at 1.3 m height. Plant pathogens were isolated from 52% of all samples. Soft rot-causing Alternaria and Fusarium were dominant; Alternaria was more common at the height of 1.3 m, while Fusarium was more common at the root collar. White rot fungi were isolated from less than 2% of all samples, indicating a low degree of tree infection in the 15- to 16-year-old plantations. Clonal differences were not significant for fungal communities in general; nevertheless, for the occurrence of the genus Cladosporium, clonal differences were observed. In conclusion, the differences in fungal communities in relation to stem cracks implied only indirect clonal effects on phytopathological risks, emphasizing the resistance to stem cracking as a crucial trait for the sustainability of hybrid aspen plantations.

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“…The first species -N. malicorticiswas described as a causal agent of apple anthracnose (Jackson 1913). In 1939, N. populi [current name: N. krawtzewii (Verkley 1999)] was isolated from poplar cankers and characterized (Thompson 1939), and was detected in Southern Finland also on poplar trees (Kasanen et al 2002). Later, other fungal pathogens were reported causing perennial canker, bull's eye rot of apple and pear fruits, and described as Neofabraea or Pezicula alba, N. malicorticis, and N. perennans (Kienholz 1939;Guthrie 1959;Verkley 1999, andAbeln et al 2000).…”

mentioning

confidence: 99%

Neofabraea kienholzii, a novel causal agent of grapevine trunk diseases in Hungary

et al. 2020

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Recently, more and more new fungal pathogens have been described as causal agents of grapevine trunk diseases (GTDs), which lead to increasingly significant economic losses in viticulture worldwide. The genus Neofabraea consists of species mainly known as important plant pathogens causing perennial canker and bull's eye rot, a common postharvest disease of apple (Malus domestica) and pear (Pyrus communis) fruits. Neofabraea kienholzii also causes lesions on pome fruits and canker on woody tissues, but its pathogenicity has not been demonstrated on grapevine yet. In 2015, two strains, identified as N. kienholzii based on ITS sequence data, were isolated from vines showing symptoms of GTDs in Hungary. For an unambiguous taxonomic placement of the isolates, four loci (ITS, LSU, TUB2 and RPB2) were amplified and sequenced. The phylogenetic analysis confirmed that the two isolates represent N. kienholzii. Pathogenicity tests performed on potted grapevines, shoots, and canes confirmed the virulence of these fungi. Their growth and sporulation on different media were also investigated. To the best of our knowledge, this is the first proof of N. kienholzii might cause symptoms on Vitis and might have a role in GTDs.

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Neofabraea populiin Hybrid Aspen Stands in Southern Finland

Cited by 13 publications

References 8 publications

First record of Chalara fraxinea in Finland and genetic variation among isolates sampled from Åland, mainland Finland, Estonia and Latvia

First record of Chalara fraxinea in Finland and genetic variation among isolates sampled from Åland, mainland Finland, Estonia and Latvia

Frost Cracks Show a Slight Effect on Fungal Richness in Stem Wood of Hybrid Aspen Trees in Latvia

Neofabraea kienholzii, a novel causal agent of grapevine trunk diseases in Hungary

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