Forest Pathology最新文献_第9页

Differences in virulence of genets of Heterobasidion annosum and susceptibility of young plants of different conifer species and origins 不同针叶树种和起源的异担子annosum基因毒力和幼株易感性的差异

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-08-25 DOI: 10.1111/efp.12827

Refika Ceyda Beram, Ayşe Gülden Aday Kaya, Hatice Tuğba Doğmuş Lehtijärvi, Asko Lehtijärvi, Steve Woodward

{"title":"Differences in virulence of genets of Heterobasidion annosum and susceptibility of young plants of different conifer species and origins","authors":"Refika Ceyda Beram, Ayşe Gülden Aday Kaya, Hatice Tuğba Doğmuş Lehtijärvi, Asko Lehtijärvi, Steve Woodward","doi":"10.1111/efp.12827","DOIUrl":"10.1111/efp.12827","url":null,"abstract":"Heterobasidion species are the most important pathogens causing root and stem rot on conifers in northern hemisphere forests. The host list of this complex is very wide and includes over 200 species of trees and shrubs. Among the members of this complex, Heterobasidion annosum s. s. has the largest host range. In this study, young plants of Pinus sylvestris, Picea orientalis, Abies nordmanniana, Cedrus libani and Pinus brutia (three different origins) were inoculated on the lower stem with known genets of Heterobasidion annosum s.s. collected from Pinus brutia stands in south-western Türkiye. Infection frequency, assessed as presence of the conidial stage in stem discs following incubation, in the inoculated seedlings was 100%. The Heterobasidion annosum s. s. isolates were re-isolated from all inoculated host species. Control seedlings showed no symptoms of disease. Mortality in inoculated plants was 11.5% of the 735 inoculated plants, which died over an 8-weeks incubation period. The isolates showed greater growth on Cedrus libani, Pinus sylvestris and Picea orientalis seedlings compared to other species tested. On the other hand, it was found that the least affected seedlings were Pinus brutia TB12 and Abies nordmanniana. This study proved that differences occur in aggressiveness of Heterobasidion annosum s. s. to host species. A striking point in the results is that, despite being the host species from which the isolates were obtained, Pinus brutia seedlings showed lower sensitivity to Heterobasidion annosum s. s. than the other conifer species tested. Inoculations of three different Pinus brutia provenances suggested there was no significant difference in mean lesion lengths and fungal growth values in Pinus brutia plants, except in Pinus brutia TB14, which was more susceptible to extension growth of the pathogen.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 5","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43603887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification, pathogenicity and control of powdery mildew caused by Erysiphe elevata on Eucalyptus pellita in Sumatra, Indonesia 印尼苏门答腊岛白桉白粉病的鉴定、致病性及防治

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-08-21 DOI: 10.1111/efp.12825

Leonardo S. S. Oliveira, Muhamad A. Saha, Fahimeh Jami, Rianza Asfa, Maggie V. Maretha, Jaliaman Sipayung, Marthin Tarigan, Alvaro Duran

{"title":"Identification, pathogenicity and control of powdery mildew caused by Erysiphe elevata on Eucalyptus pellita in Sumatra, Indonesia","authors":"Leonardo S. S. Oliveira, Muhamad A. Saha, Fahimeh Jami, Rianza Asfa, Maggie V. Maretha, Jaliaman Sipayung, Marthin Tarigan, Alvaro Duran","doi":"10.1111/efp.12825","DOIUrl":"10.1111/efp.12825","url":null,"abstract":"Powdery mildews are biotrophic ascomycetes that do not typically kill their hosts, but instead interfere with normal plant growth. In Indonesia, white powdery spots were observed forming on the upper part of fully developed leaves of Eucalyptus pellita planted in sand beds of a clonal nursery. Thus, this study aimed to identify the causal agent of eucalypt powdery mildew in Indonesia as well as to develop control strategies to better manage the disease. Pathogen identification was based on morphology, molecular characterization of DNA sequencing the ITS region and pathogenicity test. In addition, considering that some powdery mildews are inhibited by free moisture on leaves, efficacy of foliar watering was tested for disease control. Phylogenetic analyses showed that isolates collected from infected eucalypt plants grouped together with other sequences of the Erysiphe elevata clade with bootstrap support of 99%; a similar result was also confirmed by morphological observations. Pathogenicity of powdery mildew on eucalypt plants was confirmed through artificial inoculation, thus fulfilling the Koch's postulates. For disease control, foliar watering reduced the incidence of powdery mildew on mother plants. The reduction of the disease incidence began to be more evident at 2 weeks after trial establishment, and in the fourth week, the incidence was below 10% in all three treatments, while the control was above 20%. Therefore, we concluded that E. elevata is the causal agent of powdery mildew in Indonesia and that one application of foliar watering per week was enough to minimize the disease impact in the nursery.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 5","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42649670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Artificial inoculation and susceptibility of Pinus armandii to Dothistroma septosporum 山地松对中隔孢子虫的人工接种及易感性研究

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-08-18 DOI: 10.1111/efp.12826

Zuzana Jánošíková, Emília Ondrušková, Katarína Adamčíková

引用次数: 0

Fungal pathogens associated with twig canker of shrub species in Tunisia: Considering the effect of the factors correlated 突尼斯灌木枝条溃疡的真菌病原体：考虑相关因素的影响

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-08-07 DOI: 10.1111/efp.12824

Sawssen Hlaiem, Islem Yangui, Olfa Ezzine, Gianni Della Rocca, Sara Barberini, Roberto Danti, Mohamed Lahbib Ben Jamâa

{"title":"Fungal pathogens associated with twig canker of shrub species in Tunisia: Considering the effect of the factors correlated","authors":"Sawssen Hlaiem, Islem Yangui, Olfa Ezzine, Gianni Della Rocca, Sara Barberini, Roberto Danti, Mohamed Lahbib Ben Jamâa","doi":"10.1111/efp.12824","DOIUrl":"10.1111/efp.12824","url":null,"abstract":"Decline phenomena of shrub species such as Quercus coccifera and Retama raetam have occurred throughout Tunisian forests since 2012. These evergreen shrubs have long been regarded for their medicinal and ecological interests. Therefore, their preservation as valuable forest resources is of great interest. However, information regarding aetiology of this disease is still scarce. Hence, the aim of this study was to identify and characterize the causal agents associated with disease symptoms in two Tunisian forests. Thirty-eight isolates were obtained from symptomatic Q. coccifera and R. raetam twigs. Morphological characterization and phylogenetic analysis of the internal transcribed spacer (ITS) region of the nuclear ribosomal RNA gene cluster and partial sequence of the translation elongation factor 1-alpha gene (tef1-α) allowed the identification of three Diplodia species namely Diplodia africana, D. seriata and D. pseudoseriata. Our findings revealed that the incidence of Diplodia species was significantly correlated to the altitude, the temperature and the rainfall. Pathogenicity test showed that all Diplodia isolates are pathogenic. However, D. africana revealed to be the most aggressive species toward R. raetam. These findings were the first record of D. seriata as fungal pathogen associated with Q. coccifera dieback and D. pseudoseriata and D. africana on R. raetam in Tunisia.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 5","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44567188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioclimatic variables and their impact on the potential distribution of Brenneria goodwinii in Europe 生物气候变量及其对欧洲布氏线虫潜在分布的影响

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-07-25 DOI: 10.1111/efp.12820

Miłosz Tkaczyk

引用次数: 0

The pine pathogen Diplodia sapinea is associated with the death of large Douglas fir trees 松树病原菌是与大型花旗松死亡有关的

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-07-19 DOI: 10.1111/efp.12823

Elisabeth Ritzer, Martin Schebeck, Thomas Kirisits

{"title":"The pine pathogen Diplodia sapinea is associated with the death of large Douglas fir trees","authors":"Elisabeth Ritzer, Martin Schebeck, Thomas Kirisits","doi":"10.1111/efp.12823","DOIUrl":"10.1111/efp.12823","url":null,"abstract":"Climate change poses severe pressures to European conifer forests. Using non-native tree species, such as Douglas fir (Pseudotsuga menziesii), is one proposed strategy to circumvent adverse effects for forest management. However, novel forest health risks can impair the cultivation of non-native trees. In 2022, we observed large Douglas fir trees (approximately 40–50 years old, diameter at breast height (dbh) 21–41 cm) that had recently died in spring or summer 2022 in three forest stands in Eastern Austria. Intensive resin flow, blue-staining of the sapwood and the absence of bark- and wood-boring insects indicated a fungal infection. Isolations from blue-stained sapwood of the dead trees consistently yielded cultures of the opportunistic pathogen Diplodia sapinea. In a greenhouse wound inoculation experiment, seven D. sapinea isolates obtained from Douglas fir caused phloem necrosis, blue-staining of sapwood and mortality and thus displayed pathogenicity towards seedlings of both Ps. menziesii and its common host, Scots pine (Pinus sylvestris). Diplodia sapinea produced significantly longer areas of blue-stain as well as higher and faster mortality in Ps. menziesii compared to P. sylvestris. We conclude that D. sapinea substantially contributed to the death of seven of the 13 examined large Douglas fir trees. While this fungus has been described as a pathogen of young Douglas fir trees before, this is the first report that it can potentially kill large individuals of this conifer species under drought conditions. Thus, our results indicate that D. sapinea could represent a severe threat to the cultivation of Ps. menziesii in European forestry.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/efp.12823","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46553784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diplodia twig canker (Diplodia gallae) of northern red oak (Quercus rubra) in the northeastern United States 美国东北部红橡树的Diplodia枝条溃疡病（Diplodia gallae）

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-07-06 DOI: 10.1111/efp.12822

Nicholas J. Brazee, Isabel A. Munck, Kelsey McLaughlin, Savannah Ferreira, Nicole Keleher

{"title":"Diplodia twig canker (Diplodia gallae) of northern red oak (Quercus rubra) in the northeastern United States","authors":"Nicholas J. Brazee, Isabel A. Munck, Kelsey McLaughlin, Savannah Ferreira, Nicole Keleher","doi":"10.1111/efp.12822","DOIUrl":"10.1111/efp.12822","url":null,"abstract":"The 2015–2018 outbreak of spongy moth (Lymantria dispar) in southern New England initiated a severe oak decline and mortality event. While defoliation was a primary driver, increased secondary pest and pathogen activity contributed to decline and death. Following this large defoliation event, Diplodia was frequently recovered from northern red oaks (Quercus rubra) with serious outbreaks of twig cankering. Given the many recent reports of Diplodia corticola on oak in eastern North America, it was presumed to be the causal agent. To confirm, a limited survey was conducted from five states in the region (Maine, Massachusetts, New Hampshire, New York, and Vermont). Based on ITS, tef1 and tub2 sequences generated from 28 isolates collected primarily from northern red oak, Diplodia gallae, two potentially novel Diplodia species and Diplodia sapinea were identified. Surprisingly, D. corticola was not found in this study. ITS sequences alone failed to discriminate among isolates of D. gallae and D. corticola, creating uncertainty over previous reports of D. corticola in eastern North America. Only a combined ITS + tef1 dataset successfully distinguished D. gallae and D. corticola along with two other closely related species that also occur on oak (Diplodia quercicola and Diplodia quercivora). Additional cankering and endophytic fungi (Coryneum, Dendrostoma, Gnomoniopsis, Pestalotiopsis and Tubakia) were also found on symptomatic oaks in the region. Identification of Diplodia isolates from non-Quercus hosts also detected Diplodia neojuniperi on Juniperus chinensis and Microbiota decussata, which has not been reported previously in North America.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45645363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The culturable leaf mycobiome of Viscum album subsp. austriacum 柞蚕叶片可培养菌群的研究。austriacum

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-07-01 DOI: 10.1111/efp.12821

Robert Jankowiak, Piotr Bilański, Julita Zając, Adrianna Jobczyk, Stephen J. Taerum

{"title":"The culturable leaf mycobiome of Viscum album subsp. austriacum","authors":"Robert Jankowiak, Piotr Bilański, Julita Zając, Adrianna Jobczyk, Stephen J. Taerum","doi":"10.1111/efp.12821","DOIUrl":"10.1111/efp.12821","url":null,"abstract":"In Poland's pine forests, mistletoe (Viscum album subsp. austriacum) abundance has increased over the past 20 years. This mistletoe infestation has decreased the growth and vigour of Scots pine trees. In this study, we surveyed the culturable fungi from healthy and diseased V. album subsp. austriacum leaves from two stands in Poland. In total, 63 distinct species were identified, 99.8% of which belonged to the phylum Ascomycota. The community compositions of fungi in mistletoe leaves were similar in healthy and diseased leaves as Alternaria alternata, Aureobasidium pullulans, Botryosphaeria visci, Fusarium paeoniae and Microsphaeropsis olivacea were consistently found in leaves of all symptom types. The most frequently isolated fungus from asymptomatic leaves was M. olivacea, followed by A. alternata, A. pullulans and Hypoxylon rubiginosum. In comparison, the most frequently isolated fungi from leaves with rusty-brown necrotic spots were (in decreasing order) M. olivacea, B. visci, F. paeoniae and A. alternata, while the most frequently isolated fungi from leaves with black or dark brown spots were M. olivacea, A. alternata, A. pullulans, Epicoccum layuense and F. paeoniae. This study was the first comprehensive report showing that certain fungal species may be pathogens of V. album subsp. austriacum in Poland. This study was also the first report of F. paeoniae, F. juglandicola, Diaporthe vacuae and Heterotruncatella spartii from V. album, and the first report of D. vacuae and H. spartii in Poland.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 4","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44087230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The northernmost plant pathogenic fungus, Rhytisma arcticum sp. nov.: Morphological and molecular characterization of a novel species from Ellesmere Island, Canada 最北端植物病原真菌，Rhytisma arcticum sp. nov.:加拿大Ellesmere岛一新种的形态和分子特征

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-06-19 DOI: 10.1111/efp.12818

Shota Masumoto

引用次数: 0

Susceptibility of silver birch and black alder to several Phytophthora species isolated from soils in declining broadleaf forests in western Ukraine 乌克兰西部阔叶林退化土壤中几种疫霉对白桦和黑桤木的敏感性

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-06-19 DOI: 10.1111/efp.12817

Iryna Matsiakh, Noelia López-García, Magdalena Kacprzyk, Michelle Cleary

引用次数: 0