Diplodia sapinea in Swedish forest nurseries


Larsson R., Menkis A., Olson Å. (2021): Diplodia sapinea in Swedish forest nurseries. Plant Protect. Sci., 57: 66–69.

download PDF

Diplodia sapinea is a common forest pathogen on Pinus spp. in a large part of the world. In 2013, disease caused by this pathogen on Scots pine (Pinus sylvestris) trees in Sweden was reported for the first time. In this study, we report the first detection of D. sapinea on diseased seedlings of P. sylvestris from two Swedish forest nurseries. Infected seedlings were collected July–November 2019. Diplodia sapinea  was identified by morphological characteristics of fungal structures on plant tissues and from culture grown on Hagem agar media, followed by sequencing of fungal ITS rDNA. The result emphasizes the susceptibility of P. sylvestris seedlings. More research is needed to better understand the risk for disease spreading within forest nurseries and into the forest through infected plant material.

Brodde L., Adamson K., Camarero J., Castano C., Drenkhan R.,
Lehtijärvi A., Luchi N., Migliorini D., Sanchez-Miranda A., Stenlid J., Özdag S., Oliva J. (2019): Diplodia tip blight on its way to the north: drivers of disease emergence in Northern Europe. Frontiers in Plant Science, 9: 1–12.
Menkis A., Vasiliauskas R., Taylor A.F.S., Stenlid J., Finlay R. (2005): Fungal communities in mycorrhizal roots of conifer seedlings in forest nurseries under different cultivation systems, assessed by morphotyping, direct sequencing and mycelial isolation. Mycorrhiza, 16: 33–41.  https://doi.org/10.1007/s00572-005-0011-z
Molin N., Persson M., Persson S. (1961): Root parasites on forest tree seedlings. Some explorato-ry tests of the resistance of germinant seedlings and the virulence of some potential parasites. Meddelande Från Statens Skogsforskningsinstitut, 49: 1–16.
Oliva J., Boberg J., Stenlid J. (2013): First report of Sphaeropsis sapinea on Scots pine (Pinus sylvestris) and Austrian pine (P. nigra) in Sweden. New Disease Reports, 27: 23. doi: 10.5197/j.2044-0588.2013.027.023 https://doi.org/10.5197/j.2044-0588.2013.027.023
Phillips A.J.L., Alves A., Abdollahzadeh J., Slippers B., Wingfield M.J., Groenewald J.Z., Crous P.W. (2013): The Botryosphaeriaceae: genera and species known from culture. Studies in Mycology, 76: 51–167.  https://doi.org/10.3114/sim0021
Smith D.R., Stanosz G.R. (2006): A species-specific PCR assay for detection of Diplodia pinea and D. scrobiculata in dead red and jack pines with collar rot symptoms. Plant Disease, 90: 307–313.  https://doi.org/10.1094/PD-90-0307
Stanosz G.R., Smith D.R., Leisso R. (2007): Diplodia shoot blight and asymptomatic persistence of Diplodia pinea on or in stems of jack pine nursery seedlings. Forest Pathology, 37: 145–154.  https://doi.org/10.1111/j.1439-0329.2007.00487.x
Stenlid J. (1985). Population structure of Heterobasidion annosum as determined by somatic in-compatibility, sexual incompatibility, and isoenzyme patterns. Canadian Journal of Botany, 63: 2268–2273. https://doi.org/10.1139/b85-322
download PDF

© 2021 Czech Academy of Agricultural Sciences | Prohlášení o přístupnosti