globalchange  > 气候减缓与适应
DOI: 10.3389/fpls.2018.01818
WOS记录号: WOS:000455304700001
论文题名:
Diplodia Tip Blight on Its Way to the North: Drivers of Disease Emergence in Northern Europe
作者: Brodde, Laura1; Adamson, Kalev4; Julio Camarero, J.2; Castano, Carles3; Drenkhan, Rein4; Lehtijarvi, Asko5; Luchi, Nicola6; Migliorini, Duccio6; Sanchez-Miranda, Angela2; Stenlid, Jan1; Ozdag, Sule5,7; Oliva, Jonas1,8
通讯作者: Oliva, Jonas
刊名: FRONTIERS IN PLANT SCIENCE
ISSN: 1664-462X
出版年: 2019
卷: 9
语种: 英语
英文关键词: carbon isotopes ; dendroecology ; water-use efficiency ; latewood ; earlywood ; vascular wilt pathogen
WOS关键词: SPHAEROPSIS-SAPINEA ; SHOOT BLIGHT ; FOREST PATHOGENS ; PINUS-SYLVESTRIS ; CLIMATE-CHANGE ; PCR ASSAY ; PINEA ; WATER ; RED ; SCROBICULATA
WOS学科分类: Plant Sciences
WOS研究方向: Plant Sciences
英文摘要:

Disease emergence in northern and boreal forests has been mostly due to tree-pathogen encounters lacking a co-evolutionary past. However, outbreaks involving novel interactions of the host or the pathogen with the environment have been less well documented. Following an increase of records in Northern Europe, the first large outbreak of Diplodia sapinea on Pinus sylvastris was discovered in Sweden in 2016. By reconstructing the development of the epidemic, we found that the attacks started approx. 10 years back from several isolated trees in the stand and ended up affecting almost 90% of the trees in 2016. Limited damage was observed in other plantations in the surroundings of the affected stand, pointing to a new introduced pathogen as the cause of the outbreak. Nevertheless, no genetic differences based on SSR markers were found between isolates of the outbreak area and other Swedish isolates predating the outbreak or from other populations in Europe and Asia Minor. On a temporal scale, we saw that warm May and June temperatures were associated with higher damage and low tree growth, while cold and rainy conditions seemed to favor growth and deter disease. At a spatial scale, we saw that spread occurred predominantly in the SW aspect-area of the stand. Within that area and based on tree-ring and isotope (delta C-13) analyses, we saw that disease occurred on trees that over the years had shown a lower water-use efficiency (WUE). Spore traps showed that highly infected trees were those producing the largest amount of inoculum. D. sapinea impaired latewood growth and reduced C reserves in needles and branches. D. sapinea attacks can cause serious economic damage by killing new shoots, disrupting the crown, and affecting the quality of stems. Our results show that D. sapinea has no limitations in becoming a serious pathogen in Northern Europe. Management should focus on reducing inoculum, especially since climate change may bring more favorable conditions for this pathogen. Seedlings for planting should be carefully inspected as D. sapinea may be present in a latent stage in asymptomatic tissues.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/127805
Appears in Collections:气候减缓与适应

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作者单位: 1.Swedish Univ Agr Sci, Dept Forest Mycol & Plant Pathol, Uppsala, Sweden
2.CSIC, IPE, Pyrenean Inst Ecol, Zaragoza, Spain
3.Univ Valladolid, Sustainable Forest Management Res Inst, Palencia, Spain
4.Estonian Univ Life Sci, Inst Forestry & Rural Engn, Tartu, Estonia
5.Bursa Tech Univ, Fac Forestry, Bursa, Turkey
6.Italian Natl Res Council, Inst Sustainable Plant Protect, Florence, Italy
7.Isparta Univ Appl Sci, Isparta, Turkey
8.Univ Lleida, Dept Crop & Forest Sci, Agrotecnio Ctr CERCA, Lleida, Spain

Recommended Citation:
Brodde, Laura,Adamson, Kalev,Julio Camarero, J.,et al. Diplodia Tip Blight on Its Way to the North: Drivers of Disease Emergence in Northern Europe[J]. FRONTIERS IN PLANT SCIENCE,2019-01-01,9
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