Phytopathologia Mediterranea最新文献

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First report of Didymosphaeria rubi-ulmifolii associated with canker and dieback of apple trees in southern Ethiopia 与埃塞俄比亚南部苹果树溃疡病和枯死有关的红乌双孢霉首次报道
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12400
A. Yirgu, A. Gezahgne, T. Alemu, Minette Havenga, L. Mostert
{"title":"First report of Didymosphaeria rubi-ulmifolii associated with canker and dieback of apple trees in southern Ethiopia","authors":"A. Yirgu, A. Gezahgne, T. Alemu, Minette Havenga, L. Mostert","doi":"10.36253/phyto-12400","DOIUrl":"https://doi.org/10.36253/phyto-12400","url":null,"abstract":"Cultivation of apple trees in the highlands of Ethiopia began in 1955. In 2014, blistering of the bark due to cankers on the main stems mostly below the grafting points, followed by dieback and eventually death of apple trees, was observed in apple orchards in the Hadiya Zone in Ethiopia. This study aimed to identify the causal agent of canker and dieback symptoms on the apple trees. Symptomatic trunks from 20 trees (ten per cultivar) were sampled. Isolations were performed from ten trunks (five per cultivar). Fungus colonies with similar cultural features were obtained from all the samples, and the morphology of a representative isolate was characterized. Phylogenetic analyses of the concatenated internal transcribed spacers 1 and 2 and 5.8S rRNA gene, large subunit and actin gene regions confirmed the identity of two isolates as Didymosphaeria rubi-ulmifolii. Pathogenicity was confirmed for one isolate by inoculations of healthy branches of ‘Anna’ and ‘Dorsett Golden’ apple trees resulting in lesion formation, and subsequent re-isolation of the inoculated fungus. This study is the first report of D. rubi-ulmifolii associated with dieback of apple trees. This pathogen caused death of more than 26% of apple trees in one commercial orchard, and could cause severe losses for smallholder apple growers in Ethiopia. Future studies are required to assess the magnitude, distribution and management options of this economically important canker disease in Ethiopia.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48017519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1
Identification, full-length genome sequencing, and field survey of citrus vein enation virus in Italy 意大利柑桔脉腺病毒鉴定、全基因组测序及野外调查
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12180
M. Minutolo, M. Cinque, G. Altamura, F. Di Serio, D. Alioto, B. Navarro
{"title":"Identification, full-length genome sequencing, and field survey of citrus vein enation virus in Italy","authors":"M. Minutolo, M. Cinque, G. Altamura, F. Di Serio, D. Alioto, B. Navarro","doi":"10.36253/phyto-12180","DOIUrl":"https://doi.org/10.36253/phyto-12180","url":null,"abstract":"Citrus vein enation virus (CVEV) was described in Spain and then it has been reported in several citrus growing areas of Asia, America and Australia. Here, the occurrence of CVEV in Italy has been documented for the first time. The full genome sequence of a CVEV Italian isolate (14Q) was determined by high-throughput sequencing and the presence of the virus was confirmed by RT-PCR and graft-transmission to indicator plants, from which the virus was recovered six-months post-inoculation. Phylogenetic analysis based on the full-length genome of CVEV isolates from different countries showed that they are phylogenetically related to each other based on their geographic origin, rather than on their host and that the Italian isolate is more closely related to the Spanish isolate than to the other ones. A field survey revealed the presence of CVEV in some areas of Campania region (southern Italy), prevalently infecting lemon trees. In the frame of this survey, kumquat was identified for the first time as a host of CVEV. No symptoms were observed in the field so far. The infection of asymptomatic hosts and the transmission by aphid species present in Italy increase the risk that the virus could further spread.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42174910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2
Fungal pathogens associated with black foot of grapevine in China 中国葡萄黑脚病病原菌研究
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12353
Q. Ye, Wei Zhang, J. Jia, Xinghong Li, Yueyan Zhou, C. Han, Xuehong Wu, Jiye Yan
{"title":"Fungal pathogens associated with black foot of grapevine in China","authors":"Q. Ye, Wei Zhang, J. Jia, Xinghong Li, Yueyan Zhou, C. Han, Xuehong Wu, Jiye Yan","doi":"10.36253/phyto-12353","DOIUrl":"https://doi.org/10.36253/phyto-12353","url":null,"abstract":"Grapevine trunk diseases (GTDs) are the most destructive diseases in grape-growing regions worldwide. Black foot is one of the important GTDs affecting young vineyards and nurseries. This disease has not been reported in China. During 2017 and 2019, field surveys were carried out in the Guangxi, Hebei, Ningxia, Shanxi, and Xinjiang provinces of China. Incidence of plants with black foot symptoms was 0.1% to 1% in the surveyed vineyards. Plant samples with poorly developed shoots and canes, chlorotic leaves, and necrotic trunks or roots were collected from the five provinces. In total, 50 fungal isolates were obtained from symptomatic tissues. Based on morphological and multi-gene phylogenetic analyses, five species were identified as Cylindrocladiella lageniformis, Dactylonectria torresensis, D. macrodidyma, D. alcacerensis and Neonectria sp.1. Pathogenicity was assessed using young, healthy detached green shoots of grapevine ‘Summer Black’ and potted 3-month-old ‘Summer Black’ cuttings. Inoculated detached shoots developed necroses after 7 d, and inoculated cuttings after 80 d. Fungi were re-isolated from necrotic lesions. Among the five species, D. macrodidyma was the most aggressive. This is the first report of C. lageniformis, D. torresensis, D. macrodidyma, D. alcacerensis, and Neonectria sp. 1 associated with black foot in China. This study has enhanced knowledge of the fungi associated with black foot in China, and will assist development of control measures for this disease.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49424357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 6
Starch-glyceryl monostearate edible coatings formulated with sodium benzoate control postharvest citrus diseases caused by Penicillium digitatum and Penicillium italicum 用苯甲酸钠配制淀粉-单硬脂酸甘油食用涂料防治柑橘采后指状青霉和意大利青霉病
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12528
L. SOTO-MUÑOZ, V. Martínez-Blay, M. Pérez-Gago, A. Fernández-Catalán, M. Argente-Sanchis, L. Palou
{"title":"Starch-glyceryl monostearate edible coatings formulated with sodium benzoate control postharvest citrus diseases caused by Penicillium digitatum and Penicillium italicum","authors":"L. SOTO-MUÑOZ, V. Martínez-Blay, M. Pérez-Gago, A. Fernández-Catalán, M. Argente-Sanchis, L. Palou","doi":"10.36253/phyto-12528","DOIUrl":"https://doi.org/10.36253/phyto-12528","url":null,"abstract":"The curative antifungal activity of edible composite coatings (ECs) based on pregelatinized potato starch-glyceryl monostearate (PPS-GMS) formulated with or without sodium benzoate (SB) to control green mould (caused by Penicillium digitatum) and blue mould (P. italicum) was assessed on ‘Orri’ mandarins, ‘Valencia’ oranges and ‘Fino’ lemons. These fruit were artificially inoculated with P. digitatum or P. italicum, treated by immersion in coating emulsions and compared to uncoated control fruit immersed in water and fruit immersed in 2% SB (w/v) aqueous solution. Treated fruit were then stored at either 20°C or commercial low temperature (5°C for mandarins and oranges, 12°C for lemons). Coatings without SB did not exhibit antifungal activity, whereas coatings containing 2% SB reduced incidence and severity of green and blue moulds, in comparison to the controls, on all citrus species and in all storage conditions, without differing from the aplication of 2% SB alone. For example, incidence reduction on ‘Fino’ lemons was from 99 to 0% after 7 d at 20°C, and from 99 to 30% after 2 weeks at 12°C. None of the treatments was phytotoxic. These results indicate that applications of SB as antifungal ingredient of PPS-GMS based ECs is a promising non-polluting alternative to control Penicillium postharvest decay of citrus, and these ECs are effective substitutes for conventional waxes amended with synthetic fungicides.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41511785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 4
First report of Erwina amylovora in Tuscany, Italy 意大利托斯卡纳发现紫霉属植物首次报道
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12817
D. Migliorini, F. Pecori, A. Raio, N. Luchi, D. Rizzo, C. Campani, Lorenzo Neri, A. Santini
{"title":"First report of Erwina amylovora in Tuscany, Italy","authors":"D. Migliorini, F. Pecori, A. Raio, N. Luchi, D. Rizzo, C. Campani, Lorenzo Neri, A. Santini","doi":"10.36253/phyto-12817","DOIUrl":"https://doi.org/10.36253/phyto-12817","url":null,"abstract":"2-years-old plants of Pyrus communis showing symptoms of fire blight disease were sampled in an orchard in Tuscany (Italy) during Autumn 2020. Plants were obtained the previous spring from a commercial nursery located in a region where the disease is present since 1994. The collected material was processed in the lab in order to verify the presence of the bacterium Erwinia amylovora, the causal agent of fire blight. Pure isolates showing white mucoid colonies and levan producers on Levan medium were putatively assimilated to E. amylovora. DNA was extracted from the cultures and analysed with three molecular assays, including duplex PCR of the 29-Kb plasmid pEA29 and the ams chromosomal region, sequencing of the 16S rDNA and recA gene regions, two real-time PCR assays on symptomatic plant tissues. All tests confirmed the presence of E. amylovora. Symptomatic and surrounding plants were removed and immediately destroyed according to the regional phytosanitary protocol. This outcome poses a serious threat for fruit orchards in the area.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44829567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2
Adult plant resistance to white rust in Lunaria annua 月桂花成虫对白锈病的抗性
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12805
D. Cervantes, M. Ridout, C. Nischwitz, G. Newcombe
{"title":"Adult plant resistance to white rust in Lunaria annua","authors":"D. Cervantes, M. Ridout, C. Nischwitz, G. Newcombe","doi":"10.36253/phyto-12805","DOIUrl":"https://doi.org/10.36253/phyto-12805","url":null,"abstract":"Wild plants produce abundant seeds and seedlings, but most die before reaching maturity, and these premature deaths are often caused by pathogens. Major genes for resistance protect some seedlings or juveniles. These selected individuals can become a resistant, mature cohort. Alternatively, plants can exhibit mature, adult plant resistance. These two explanations can be indistinguishable in the field, when epidemics in natural pathosystems occur regularly resulting in annual selection for resistance. This study included multi-year observations of a biennial plant where the distinction could be made. White rust of Lunaria annua, a pathosystem native to the Mediterranean Basin, took time in its introduced range in Idaho, USA, to generate epidemics. After years of minimal white rust, an epidemic occurred in 2017 in which first-year, juvenile plants had 20 times the sorus density of second-year, adult plants. Since white rust incidence had been minimal for years prior to 2017, the greater resistance of 2017 adults over 2017 juveniles may have been due to adult-plant resistance. This could also be due to phenology: adult plants have mature leaves, and are flowering and maturing seed, by the time that white rust begins to build up on leaves of juveniles. The juvenile-adult difference was maintained in 2018. In white blister rusts, interpretation of resistance can also be complicated by the frequency of asymptomatic infections that adult plants would pass on to the next generation. However, we found no asymptomatic infection of seeds of L. annua in our sampling of the Idaho population.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45346329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1
Characterization of Lasiodiplodia species associated with grapevines in Mexico 墨西哥葡萄藤相关种Lasiodiplodia的特征
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12576
E. A. RANGEL-MONTOYA, Marcos Paolinelli, P. Rolshausen, Cesar VALENZUELA-SOLANO, R. Hernández-Martínez
{"title":"Characterization of Lasiodiplodia species associated with grapevines in Mexico","authors":"E. A. RANGEL-MONTOYA, Marcos Paolinelli, P. Rolshausen, Cesar VALENZUELA-SOLANO, R. Hernández-Martínez","doi":"10.36253/phyto-12576","DOIUrl":"https://doi.org/10.36253/phyto-12576","url":null,"abstract":"Botryosphaeria dieback is one of the most prevalent grapevine trunk diseases (GTDs), and is caused by fungi in the Botryosphaeriaceae. Fungi invade grapevine vascular systems mainly through pruning wounds, and cause cankers and necrotic lesions, which lead to grapevine decline and death. Lasiodiplodia theobromae has been reported as a highly virulent pathogen of grapevine, and was previously reported in Mexican vineyards. The taxonomy of Lasiodiplodia was recently revised, adding new species, and some were reduced to synonymy. This study aimed to characterize Lasio-diplodia producing grapevine dieback symptoms in Sonora and Baja California, Mexico. Using the phylogenetic markers tef1-α and ITS regions, Lasiodiplodia brasiliensis, L. crassispora, L. exigua, and L. gilanensis were identified. Lasidiplodia exigua was the most prevalent species. Lasiodiplodia brasiliensis and L. gilanensis were very virulent to ‘Cabernet Sauvignon’ plants, while L. exigua and L. gilanensis were less virulent, and L. crassispora did not produce lesions at 2 months post-inoculation. The optimum temperature of the Lasiodiplodia spp. was 28°C, but all four species grew up to 37°C, and the isolates of L. exigua grew slowly at 40°C. This is the first report of the four of Lasio-diplodia species in vineyards of Mexico.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44684905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 9
Ceratocystis ficicola causing a serious disease of Ficus carica in Greece Ceratocystis ficicola在希腊引发严重的无花果病
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-09-13 DOI: 10.36253/phyto-12794
P. Tsopelas, N. Soulioti, Michael J. Wingfiield, I. Barnes, S. Marincowitz, E. Tjamos, E. Paplomatas
{"title":"Ceratocystis ficicola causing a serious disease of Ficus carica in Greece","authors":"P. Tsopelas, N. Soulioti, Michael J. Wingfiield, I. Barnes, S. Marincowitz, E. Tjamos, E. Paplomatas","doi":"10.36253/phyto-12794","DOIUrl":"https://doi.org/10.36253/phyto-12794","url":null,"abstract":"Ceratocystis ficicola causes vascular wilt of fig trees in Japan, invading root systems and the main stems eventually leading to tree death. In surveys from 2018 to 2020 in fig orchards in Greece, this fungus was detected in two separated regions. The fungus was consistently isolated from infected wood and from rhizosphere soil. The isolates were identified based on multi-locus phylogenetic analyses of rpb2, bt1 and tef1 gene regions and detailed morphological characteristics, including comparisons with an ex-type isolate of C. ficicola from Japan. The pathogenicity of Greek isolates was proven on Ficus carica and F. benjamina plants. Ceratocystis ficicola is a soil-borne pathogen, and the occurrence of vascular wilt outbreaks suggest that the pathogen spreads within and between orchards with infested soil and wood debris during ploughing. The pathogen is also spreading in Greece with infected propagation material. This is the first detailed report of C. ficicola outside Japan, and there is concern over potential spread of the pathogen to other Mediterranean countries, where approx. 70% of the world fig production occurs.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43532248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 7
Virulence and diversity of Puccinia striiformis in South Russia 俄罗斯南部striiformis的毒力和多样性
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-05-14 DOI: 10.36253/PHYTO-12396
G. Volkova, O. Kudinova, I. Matveeva
{"title":"Virulence and diversity of Puccinia striiformis in South Russia","authors":"G. Volkova, O. Kudinova, I. Matveeva","doi":"10.36253/PHYTO-12396","DOIUrl":"https://doi.org/10.36253/PHYTO-12396","url":null,"abstract":"Puccinia striiformis causes wheat yield losses in all countries where wheat is cultivated. Virulence and diversity of the P. striiformis were assessed in 2013–2018 in South Russia, and this showed that the North Caucasian population of the pathogen was diverse. One hundred and eighty two virulence phenotypes were identified in 186 P. striiformis isolates. Among isolates collected in 2014, 2015, and 2018, all phenotypes were unique. In the 2013 and 2017 populations, phenotypes with few (one to eight) virulence alleles prevailed. In the 2014, 2015, and 2018 populations, most of the phenotypes contained greater numbers (nine to 19) of virulence alleles. Over the 5 years of research, the pathogen population lacked isolates virulent to the host Yr resistance genes 3, 5, 26, and Sp. Single (from 1 to 5%) occurrences of isolates virulent to host lines with Yr genes 3a, 17, 24, 3b + 4a + H46, and 3c + Min were identified. Differences in frequencies of virulence alleles between years in the P. striiformis populations (Ney indices, N) were generally non-significant (N = 0.11 to 0.23), with the exception of the populations in 2013 and 2017 (N = 0.37). The minimum N values was found for the populations of 2015 and 2018 (N = 0.10). Over the five years of this study, the dynamics of the virulence of the population and jumps in the frequency of isolates with respect to many Yr genes were identified. This feature of the P. striiformis populations in South Russia, combined with high phenotypic diversity, indicates the ability for rapid race formation and morphogenesis in response to changes in biotic and abiotic factors.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":"60 1","pages":"119-127"},"PeriodicalIF":2.4,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46383027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 4
Detection and phylogeny of viruses in native Albanian olive varieties 阿尔巴尼亚橄榄品种病毒的检测与系统发育
IF 2.4 3区 农林科学
Phytopathologia Mediterranea Pub Date : 2021-05-14 DOI: 10.36253/PHYTO-11985
T. Elbeaino, M. Cara, S. Shahini, Pasko Pandeli
{"title":"Detection and phylogeny of viruses in native Albanian olive varieties","authors":"T. Elbeaino, M. Cara, S. Shahini, Pasko Pandeli","doi":"10.36253/PHYTO-11985","DOIUrl":"https://doi.org/10.36253/PHYTO-11985","url":null,"abstract":"Forty samples representing 14 native Albanian and two foreign olive varieties were collected from an olive varietal collection plot in the Valias region (Tirana, Albania). The samples were assayed by RT-PCR for presence of olive-infecting viruses, including arabis mosaic virus (ArMV), cherry leaf roll virus (CLRV), cucumber mosaic virus (CMV), olive latent ringspot virus (OLRSV), olive latent virus 1 (OLV-1), olive leaf yellowing-associated virus (OLYaV), strawberry latent ringspot virus (SLRSV) and by PCR for the bacterium Xylella fastidiosa (Xf). Ninety-eight percent of the samples were infected with at least one virus. OLYaV was the most prevalent (85% of samples), followed by OLV-1 (50%), OLRSV (48%), CMV (28%), SLRSV (3%) and CLRV (5%), whereas ArMV and Xf were absent. Fifty-five percent of the samples were infected with one virus, 13% with two viruses, 20% with three, and 5% with four. Analyses of the nucleotide sequences of the Albanian virus isolates generally showed low genetic variability, and that most were phylogenetically related to Mediterranean isolates, in particular to those from Greece and Italy. Five olive trees, representing three native cultivars (‘Managiel’, ‘Kalinjot’ and ‘Kushan-Preze’) and one foreign (‘Leccino’), were found to be plants of the Conformitas Agraria Communitatis (“CAC”) category i.e. free of ArMV, CLRV, SLRSV and OLYaV. Only one tree of the native cultivar ‘Ulliri i kuq’ was free of all tested viruses, so this is plant material of the “Virus-tested” category. Olives derived from both categories could be used for propagation of standard quality plant materiel in a future certification programme for olive in Albania. This is the first report of CLRV, OLRSV, CMV and OLV-1 in Albania. The study also reveals the precarious health status of native olive varieties in the Valias varietal collection plot. However, the discovery of six plants representing two certifiable categories is a first step in a future olive tree certification program in the country.","PeriodicalId":20165,"journal":{"name":"Phytopathologia Mediterranea","volume":"60 1","pages":"165-174"},"PeriodicalIF":2.4,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44877302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2
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