Forest Pathology最新文献_第7页

Angular leaf spot of Caucasian alder incited by a pathovar of Xanthomonas arboricola 高加索桤木角斑叶病是由黄单胞菌的一种病原菌引起的

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2024-01-30 DOI: 10.1111/efp.12847

Valeh Abbasi, Heshmatollah Rahimian, Mohammad Ali Tajick-Ghanbari, Ali Barzegar

{"title":"Angular leaf spot of Caucasian alder incited by a pathovar of Xanthomonas arboricola","authors":"Valeh Abbasi, Heshmatollah Rahimian, Mohammad Ali Tajick-Ghanbari, Ali Barzegar","doi":"10.1111/efp.12847","DOIUrl":"https://doi.org/10.1111/efp.12847","url":null,"abstract":"Caucasian alder (Alnus subcordata) is among the major constituents of the Hyrcanian forests extending all along the southern coast of the Caspian Sea in northern Iran. An angular leaf spot with a yellowish chlorotic halo has attained a widespread occurrence throughout the forest and suburban areas of the northern provinces including Guilan, Mazandaran and Golestan. Strains of a Xanthomonas sp. were consistently isolated from the symptomatic leaves of A. subcordata. Colonies of the isolates were yellow circular, convex and mucoid on nutrient agar containing glucose or sucrose. In multilocus sequence analysis using the genes gyrB, rpoD, dnaK, gltA, fyuA and gapA, the representative isolates occupied a clade shared by the known pathovars of Xanthomonas arboricola. The isolates were relatively heterogeneous phenotypically, but more so in their rep-PCR fingerprints. Pathogenicity of several isolates was confirmed on seedlings of A. subcordata and Alnus rhombifolia, whereas Alnus cordata, Alnus glutinosa and Alnus crispa appeared not to be susceptible. Based on these characteristics, the isolates causing angular leaf spots of Caucasian alder appear to represent a novel pathovar of X. arboricola.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"54 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139655213","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

Growth and pulp production of eucalyptus trees affected by ceratocystis wilt 受ceratocystis枯萎病影响的桉树的生长和纸浆产量

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2024-01-15 DOI: 10.1111/efp.12846

Lucas Antonio Benso, Amábili Alves Rangel, Rafael Augusto Soares Tiburcio, Marlon Michel Antonio Moreira Neto, Maria Márcia Pereira Sartori, Edson Luiz Furtado

{"title":"Growth and pulp production of eucalyptus trees affected by ceratocystis wilt","authors":"Lucas Antonio Benso, Amábili Alves Rangel, Rafael Augusto Soares Tiburcio, Marlon Michel Antonio Moreira Neto, Maria Márcia Pereira Sartori, Edson Luiz Furtado","doi":"10.1111/efp.12846","DOIUrl":"https://doi.org/10.1111/efp.12846","url":null,"abstract":"Ceratocystis wilt is one of the most harmful diseases affecting eucalyptus crops and is associated with species of the complex Ceratocystis fimbriata sensu lato. This pathology leads to the obstruction of the vascular system in infected trees, resulting in symptoms such as branch wilting and death. The wood affected by the pathogen exhibits discolouration and changes in its chemical composition, which can impact the pulping process. Therefore, the objective of this work is to investigate the impact of ceratocystis wilt on growth and the pulping process when sampling whole diseased trees. For this, healthy and diseased eucalyptus trees at the harvest age of 7 years were cut down, and their dendrometric variables (diameter at breast height, height and volume) and disease severity (basal discolouration area and volume of discoloured tissue) were measured. All tree trunks, classified into different severity classes, were sampled individually, peeled, chipped and subjected to Kraft cooking (Kappa number 18 ± 0.5). Diseased trees, under the evaluated condition, exhibited an average volume of 2.5% with discolouration and a reduction in the volumetric growth of 18.1%. The wood from diseased trees showed no significant differences in the Kraft cooking variables when compared to healthy trees. This result suggests that ceratocystis wilt reduces the volumetric growth of affected trees; however, due to the low proportion of symptomatic wood observed, the utilization of wood from diseased trees does not influence pulping and can be used in the pulp production process.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"54 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139473928","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

Association of Onnia subtriquetra with living and dead bishop pine (Pinus muricata) and shore pine (Pinus contorta var. contorta) in California, USA Onnia subtriquetra 与美国加利福尼亚州活着和死去的主教松（Pinus muricata）和海岸松（Pinus contorta var.

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2024-01-15 DOI: 10.1111/efp.12844

Christopher A. Lee, Ashley Hawkins, Hannah Suli, Wei Belisle, Suzanne Rooney-Latham

引用次数: 0

Chestnut blight (Cryphonectria parasitica (Murr.) Barr) disease incidence and its effect on the morphological and anatomical features of Castanea sativa trees 栗枯病（Cryphonectria parasitica (Murr.) Barr）发病率及其对蓖麻树形态和解剖特征的影响

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2024-01-15 DOI: 10.1111/efp.12843

Seray Özden Keleş, Sabri Ünal, Sefer Akan, Mertcan Karadeniz

{"title":"Chestnut blight (Cryphonectria parasitica (Murr.) Barr) disease incidence and its effect on the morphological and anatomical features of Castanea sativa trees","authors":"Seray Özden Keleş, Sabri Ünal, Sefer Akan, Mertcan Karadeniz","doi":"10.1111/efp.12843","DOIUrl":"https://doi.org/10.1111/efp.12843","url":null,"abstract":"Sweet chestnut (Castanea sativa) is an ecologically and economically valuable tree species worldwide. Various pathogens, both endemic or introduced, cause severe damage or death to chestnut trees. Chestnut blight, caused by the fungus Cryphonectria parasitica, is one of the most devastating plant diseases known which influences chestnut trees in all major cultivation regions. The work presented here aimed to investigate how the incidence of chestnut blight varied between trees growing at two altitudes (200–400 m vs. 400–600 m) and to determine the impact of chestnut blight on tree-ring width, morphology and anatomy of C. sativa trees. The incidence of C. parasitica infections was greater at 200–400 m than at 400–600 m. Greater stem diameters were found at 200–400 m than at 400–600 m. There were no differences in stem diameters and heights, however, between healthy and C. parasitica infected chestnut trees. The anatomical characteristics of wood were also compared between healthy and C. parasitica-infected chestnut trees. Fibre cell traits (length/width, lumen width, lumen area) were higher in healthy trees than in C. parasitica-diseased trees. Vessel diameters were greater in infected compared with healthy trees. Tree ring widths and wood anatomical characteristics therefore were significantly influenced by C. parasitica infections.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"54 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139473898","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

First report of Cryphonectria carpinicola in Hungary and Slovakia (Central Europe) 首次报告匈牙利和斯洛伐克（中欧）的隐核梭菌

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2024-01-15 DOI: 10.1111/efp.12845

Viktor Papp, Balázs Palla, Dávid Papp, Csaba Németh

引用次数: 0

Anatomical and physiological consequences of beech leaf disease in Fagus grandifolia L. 榉树叶病的解剖学和生理学后果

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-12-17 DOI: 10.1111/efp.12842

Leila R. Fletcher, Aleca M. Borsuk, Ana C. Fanton, Kate M. Johnson, Jennifer Richburg, Joseph Zailaa, Craig R. Brodersen

{"title":"Anatomical and physiological consequences of beech leaf disease in Fagus grandifolia L.","authors":"Leila R. Fletcher, Aleca M. Borsuk, Ana C. Fanton, Kate M. Johnson, Jennifer Richburg, Joseph Zailaa, Craig R. Brodersen","doi":"10.1111/efp.12842","DOIUrl":"10.1111/efp.12842","url":null,"abstract":"Beech leaf disease (BLD) is a foliar disease of American Beech (Fagus grandifolia L.) causally linked to the nematode Litylenchus crenatae mccannii and has rapidly spread throughout central and northeastern North America. This study aimed to characterize the anatomical and physiological differences between asymptomatic and symptomatic leaves to provide evidence for a mechanistic link between abnormal leaf development associated with BLD and the long-term decline of affected trees. We found that leaf mass per area (LMA) and leaf thickness were 45% and 249% higher in symptomatic regions, respectively. The difference in leaf thickness was largely attributable to the spongy mesophyll being 410% thicker in symptomatic as compared with asymptomatic regions of the leaves, but palisade mesophyll and abaxial epidermal tissues were also thicker in symptomatic regions. While major vein density was not significantly different, minor vein density was significantly lower in symptomatic regions, suggesting that the effects on leaf development occur after the formation and initial development of first- and second-order veins. Stomatal density was also lower in symptomatic leaves. Maximum photosynthetic rates were approximately 61% lower in symptomatic leaves and respiration rate increased as the percentage of affected leaf tissue increased. Collectively, our data show reduced photosynthetic capacity, increased respiration rates, and higher leaf construction costs, which will likely have a negative, long-term impact on the carbon balance of trees affected by BLD.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"54 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138966387","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

First report of Fusarium commune causing Torreya grandis crown and root rot in China 中国首次报告由共生镰刀菌引起的香榧冠腐病和根腐病

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-12-11 DOI: 10.1111/efp.12841

Yi-hao Wu, Jing-jing Pan, Xiao-qiao Huang, Zhang-gui Gao, Hao-jie Shi, Hai-ping Lin, Xiu Su

引用次数: 0

First report of phyllode rust on Acacia crassicarpa outside its native range 首次报告相思树原产地以外的茎锈病发生情况

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-12-07 DOI: 10.1111/efp.12839

Michael J. Wingfield, Seonju Marincowitz, Irene Barnes, Marthin Tarigan, Myriam Solís, Alvaro Durán, Nam Q. Pham

引用次数: 0

First report of Phytophthora macrochlamydospora associated with tree decline in Pinus taeda in Brazil 首次报告巴西太子松树木衰退与大疫霉病菌有关

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-11-27 DOI: 10.1111/efp.12840

Ana Carolina Lyra Brumat, Celso Garcia Auer, Dauri José Tessmann, Henrique da Silva Silveira Duarte, Álvaro Figueredo dos Santos

引用次数: 0

Cryptostroma corticale, the causal agent of sooty bark disease of maple, appears widespread in western Washington State, USA 枫树树皮煤烟病的病原菌 Cryptostroma corticale 似乎在美国华盛顿州西部广泛传播

IF 1.4 4区农林科学

Forest Pathology Pub Date : 2023-11-15 DOI: 10.1111/efp.12835

Rachel K. Brooks, Daniel Omdal, Samuel Brown, Collin J. Marshall, Joseph M. Hulbert, Marianne Elliott, Gary Chastagner

{"title":"Cryptostroma corticale, the causal agent of sooty bark disease of maple, appears widespread in western Washington State, USA","authors":"Rachel K. Brooks, Daniel Omdal, Samuel Brown, Collin J. Marshall, Joseph M. Hulbert, Marianne Elliott, Gary Chastagner","doi":"10.1111/efp.12835","DOIUrl":"https://doi.org/10.1111/efp.12835","url":null,"abstract":"The recent emergence of the fungus Cryptostroma corticale in Seattle, Washington, USA is concerning because of its invasive status in Europe, where it causes sooty bark disease of maples (SBD), killing both forest and urban trees. Additionally, the fruiting bodies (stromata) of C. corticale produce allergenic spores that can impact human health. Therefore, its presence in Washington has the potential to impact the state's populace and trees, including the native bigleaf maple, Acer macrophyllum. To better determine the distribution of C. corticale in western Washington, A. macrophyllum was surveyed on 50 Washington State Park properties. Bark samples were collected from trees with fruiting bodies resembling those of C. corticale and cores were removed from mature asymptomatic trees. The presence of C. corticale was confirmed using nested PCR. Acer macrophyllum with fruiting bodies of C. corticale were well distributed throughout western Washington, with an 89% detection rate at surveyed Park properties containing A. macrophyllum. Core samples indicated that latent infections appeared well distributed and common throughout western Washington on mature A. macrophyllum, with a 91% detection rate at surveyed Park properties containing A. macrophyllum and a 68% detection rate on cored trees. Signs of SBD and evidence of latent infections of C. corticale were widespread at surveyed properties. However, signs of SBD were rare on individual trees and the overall condition of A. macrophyllum was considered vigorous at the majority of Park properties. Awareness of C. corticale, SBD, and their likelihood to be present on a property containing A. macrophyllum in western Washington should help inform management actions and demonstrate the need for future research.","PeriodicalId":55153,"journal":{"name":"Forest Pathology","volume":"53 6","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/efp.12835","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138739784","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