Genetic variation of Picea abies in response to the artificial inoculation of Heterobasidion parviporum

Durodola, Blessing; Blumenstein, Kathrin; Terhonen, Eeva

doi:10.1007/s10342-023-01534-3

Cited by 4 publications

(1 citation statement)

References 46 publications

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“…Breeding can improve forest health, and several genetic markers for root rot are proposed to improve resistance in these species [22,[105][106][107][108]. In the study [105], the resistance (defined here as necrosis length) of spruce families and genotypes to two strains of H. parviporum was compared under different water availability. The results showed that family and genotype within the family influenced necrosis length, which was related to the aggressiveness of the fungal strains.…”

Section: Selection Of Trees Resistant To H Annosummentioning

confidence: 99%

Afforestation of Land Abandoned by Farmers Poses Threat to Forest Sustainability Due to Heterobasidion spp.

Oszako

Kukina²,

Dyshko³

et al. 2023

Forests

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Heterobasidion annosum (Fr.) Bref. sensu lato (s.l.) is a dangerous forest pathogen causing root and butt rot disease in most conifers of the northern hemisphere. This pathogen is most widespread in the forests of Europe and North America. The economic impact on forestry related to tree mortality, reduction in timber yield, and wood rot is calculated in millions of dollars and euros. The genus Heterobasidion (Basidiomycota; Russulales) has been relatively recently separated into three genetically distinct groups (H. annosum, H. insulare and H. araucariae) comprising a total of 12 species and one newly described hybrid taxon. These species are the best studied in terms of the ecology, the physiology of control methods, and the tree’s resistance to the pathogen. The article gives an overview of the symptoms and the etiology of the disease and provides information on ways to recognize the disease and limit the economic damage.

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Section: Selection Of Trees Resistant To H Annosummentioning

confidence: 99%

Afforestation of Land Abandoned by Farmers Poses Threat to Forest Sustainability Due to Heterobasidion spp.

Oszako

Kukina²,

Dyshko³

et al. 2023

Forests

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PaLAR3 genotype variability for enhanced resistance against Heterobasidion parviporum in Norway spruce: Insights into allelic frequencies, disease response, and the role of mycoviruses

Kashif,

Terhonen,

Hamberg

et al. 2024

Biological Control

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Beyond the surface: exploring the mycobiome of Norway spruce under drought stress and with Heterobasidion parviporum

Durodola,

Blumenstein,

Akinbobola

et al. 2023

BMC Microbiol

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The mycobiome, comprising fungi inhabiting plants, potentially plays a crucial role in tree health and survival amidst environmental stressors like climate change and pathogenic fungi. Understanding the intricate relationships between trees and their microbial communities is essential for developing effective strategies to bolster the resilience and well-being of forest ecosystems as we adopt more sustainable forest management practices. The mycobiome can be considered an integral aspect of a tree’s biology, closely linked to its genotype. To explore the influence of host genetics and environmental factors on fungal composition, we examined the mycobiome associated with phloem and roots of Norway spruce (Picea abies (L.) Karst.) cuttings under varying watering conditions. To test the “mycobiome-associated-fitness” hypothesis, we compared seedlings artificially inoculated with Heterobasidion parviporum and control plants to evaluate mycobiome interaction on necrosis development. We aimed to 1) identify specific mycobiome species for the Norway spruce genotypes/families within the phloem and root tissues and their interactions with H. parviporum and 2) assess stability in the mycobiome species composition under abiotic disturbances (reduced water availability). The mycobiome was analyzed by sequencing the ribosomal ITS2 region. Our results revealed significant variations in the diversity and prevalence of the phloem mycobiome among different Norway spruce genotypes, highlighting the considerable impact of genetic variation on the composition and diversity of the phloem mycobiome. Additionally, specific mycobiome genera in the phloem showed variations in response to water availability, indicating the influence of environmental conditions on the relative proportion of certain fungal genera in Norway spruce trees. In the root mycobiome, key fungi such as Phialocephala fortinii and Paraphaeosphaeria neglecta were identified as conferring inhibitory effects against H. parviporum growth in Norway spruce genotypes. Furthermore, certain endophytes demonstrated greater stability in root ecosystems under low water conditions than ectomycorrhizal fungi. This knowledge can contribute to developing sustainable forest management practices that enhance the well-being of trees and their ecosystems, ultimately bolstering forest resilience.

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Genetic variation of Picea abies in response to the artificial inoculation of Heterobasidion parviporum

Cited by 4 publications

References 46 publications

Afforestation of Land Abandoned by Farmers Poses Threat to Forest Sustainability Due to Heterobasidion spp.

Afforestation of Land Abandoned by Farmers Poses Threat to Forest Sustainability Due to Heterobasidion spp.

PaLAR3 genotype variability for enhanced resistance against Heterobasidion parviporum in Norway spruce: Insights into allelic frequencies, disease response, and the role of mycoviruses

Beyond the surface: exploring the mycobiome of Norway spruce under drought stress and with Heterobasidion parviporum

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