Research in Plant Disease最新文献_第4页

White Rot of Korean Wild Chive Caused by Stromatinia cepivora 洋葱Stromatinia引起韩国野生韭菜白腐病

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.184

Wan-Gyu Kim, Gyo-Bin Lee, H. Shim, W. Cho

引用次数: 0

Bacillus aryabhattai H19-1-Mediated Mitigation of Drought Stress in Onion Bulb Development and Maturation 枯草芽孢杆菌H19-1-介导减轻洋葱鳞茎发育成熟过程中的干旱胁迫

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.200

HyeRan Moon, S. Yoo, M. Sang

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Phylogenetic and Recombination Analysis of Apple Stem Grooving Virus Isolates from Pears in Korea 韩国梨源苹果茎沟病毒分离株的系统发育与重组分析

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.193

Nam‐Yeon Kim, R. Jeong

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Characteristics and Control of Pear Scab (Venturia nashicola): A Review 梨痂病(Venturia nashicola)的特点及防治研究进展

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.101

Eu Ddeum Choi, Janghoon Song, Ho-Jin Seo

引用次数: 0

Biocontrol Activities of Peribacillus butanolivorans KJ40, Bacillus zanthoxyli HS1, B. siamensis H30-3 and Pseudomonas sp. BC42 on Anthracnose, Bacterial Fruit Blotch and Fusarium Wilt of Cucumber Plants 丁醇绿芽孢杆菌KJ40、花椒芽孢杆菌HS1、siamensis H30-3和Pseudomonas sp. BC42对黄瓜炭疽病、细菌性果斑病和枯萎病的防生活性

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.188

Jiwon Kim, M. Sang

{"title":"Biocontrol Activities of Peribacillus butanolivorans KJ40, Bacillus zanthoxyli HS1, B. siamensis H30-3 and Pseudomonas sp. BC42 on Anthracnose, Bacterial Fruit Blotch and Fusarium Wilt of Cucumber Plants","authors":"Jiwon Kim, M. Sang","doi":"10.5423/rpd.2023.29.2.188","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.2.188","url":null,"abstract":"Abiotic and biotic stresses have been a serious threat to crop growth and productivity in the agricultural system. In this study, four strains (HS1, H30-3, KJ40, and BC42), which have biological activities related to disease suppression or alleviation of salinity and drought stresses, were tested for broad-spectrum biocontrol activity against anthracnose caused by Colletotrichum orbiculare, a bacterial fruit blotch caused by Acidovorax citrulli, and Fusarium wilt caused by Fusarium oxysporum in cucumber plants. As a result of test, when the four strains were drenched into the soil, anthracnose in cucumber leaves significantly decrease; strain KJ40 suppressed disease incidence by A. citrulli; strain BC42 significantly reduced bacterial fruit blotch and Fusarium wilt compared to control. Therefore, strain KJ40 could be a biocontrol candidate for controlling anthracnose through induced systemic resistance and the disease caused by A. citrulli as well as alleviating drought stress; strain BC42 has broad-spectrum biocontrol activity against anthracnose, Fusarium wilt, and bacterial fruit blotch.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46506477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Culture and Sporulation for Two Plant Beneficial Streptomyces Strains 两株植物有益链霉菌的培养和产孢优化

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.174

Da-Ran Kim, Youn-Sig Kwak

引用次数: 0

Evaluation of Resistance of Phytopathogenic Bacteria to Agricultural Antibiotics 植物病原菌对农用抗生素的耐药性评价

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.168

Ji-Yeon Kim, K. Baek, Sun-Young Lee

{"title":"Evaluation of Resistance of Phytopathogenic Bacteria to Agricultural Antibiotics","authors":"Ji-Yeon Kim, K. Baek, Sun-Young Lee","doi":"10.5423/rpd.2023.29.2.168","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.2.168","url":null,"abstract":"Agricultural antibiotics are widely used to inhibit the growth of phytopathogenic bacteria involved in plant diseases. However, continuous antibiotic overuse in crop production may lead to the development of antibiotic resistance in phytopathogenic bacteria. This study was conducted to evaluate the resistance to three different agricultural antibiotics (oxytetracycline+streptomycin, streptomycin, and validamycin A) in 91 strains of phytopathogenic bacteria including Pectobacterium carotovorum, Pseudomonas syringae pv. actinidiae, Clavibacter michiganensis subsp. michiganensis, C. michiganensis subsp. capsici, and Xanthomonas arboricola pv. pruni. Bacterial growth in the presence of various concentrations of validamycin A was also assessed spectrophotometrically by analyzing the optical density. All strains did not grow when the cells were exposed to oxytetracycline+streptomycin or 100× of streptomycin. However, among the 91 strains, 4% and 2% strains showed bacterial growth at the concentrations of 1× and 10× of streptomycin, respectively. Furthermore, 97%, 93%, and 73% strains were resistant to the 1×, 10×, and 100× of validamycin A, respectively, and especially, P. carotovorum contained the highest resistance to the validamycin A. Minimum bactericidal concentration values of validamycin A did not correlate with the patterns of agricultural antibiotic resistance. Further studies are needed to understand the incidence and development of antibiotic resistance in phytopathogenic bacteria.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46844984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exserohilum turcicum (Northern Corn Leaf Blight) Severity on Maize Hybrids and the Associated Crop Performance in O.R. Tambo District, Eastern Cape, South Africa 南非东开普省O.R. Tambo地区玉米杂交品种的枯叶病严重程度及相关作物生产性能

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.137

Mxolisi Mtyobile, Silindile Miya

{"title":"Exserohilum turcicum (Northern Corn Leaf Blight) Severity on Maize Hybrids and the Associated Crop Performance in O.R. Tambo District, Eastern Cape, South Africa","authors":"Mxolisi Mtyobile, Silindile Miya","doi":"10.5423/rpd.2023.29.2.137","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.2.137","url":null,"abstract":"Exserohilum turcicum is a fungus that causes northern corn leaf blight (NCLB) and has deleterious effects on maize production globally. Therefore, it is prudent to mitigate the effects of NCLB using genetic diversity. The objective of this research was to assess the severity of NCLB disease on the growth and yield of various maize genotypes. A randomized complete block design field experiment, replicated three times, was conducted to evaluate the effect of E. turcicum on 10 maize hybrids. Percent disease index, plant height, and leaf area were recorded at the silk stage. Cob weight, grain fresh weight, and grain yields were determined at harvest maturity. All measured parameters were significantly different (P<0.05) between the maize hybrids. Of the 10 genotypes, four (PAN 4R-528R, PAN 4R-728BR, PAN 3R-724BR, and P1788BR) were susceptible, five (DKC74-74BR, PAN 5R-582R, PAN 5R-890R, PAN 5R-854R, and PAN 5R-590R) were moderately susceptible, and one (DKC80-40BR) was moderately resistant. DKC80-40BR exhibited greater cob weight, while DKC74-74BR was superior in all other plant growth and yield components. Interestingly, although not significant (P>0.05) and high, maize growth and yield parameters had negative correlations with disease incidence, except for grain fresh weight. Therefore, DKC80-40BR may be selected for cultivation in areas prone to NCLB to reduce maize susceptibility to the disease, while DKC74-74BR may improve crop performance. These hybrids could be considered as potential sources of resistance or tolerance to NCLB for further validation by plant breeders.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45103167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plant Viruses and Viral Host Plants Newly Reported in South Korea in 2020–2022 2020-2022年韩国植物病毒和病毒寄主植物新报告

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.108

Myung-Hwi Kim, Seok-Yeong Jang, Ji-soo Choi, H. Byun, H. Kwak, Su-Heon Lee, Jang-Kyun Seo

引用次数: 0

Rapid Identification of Diaporthe citri by Gene Sequence Analysis 利用基因序列分析快速鉴定香茅

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.130

Zar Zar Soe, Y. Shin, Hyun Su Kang, Mi Jin Kim, Y. Jeun

{"title":"Rapid Identification of Diaporthe citri by Gene Sequence Analysis","authors":"Zar Zar Soe, Y. Shin, Hyun Su Kang, Mi Jin Kim, Y. Jeun","doi":"10.5423/rpd.2023.29.2.130","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.2.130","url":null,"abstract":"Citrus melanoses caused by Diaporthe citri, has been one of the serious diseases in many citrus orchards of Jeju Island. To protect melanose in citrus farms, a fast and exact diagnosis method is necessary. In this study, diseased leaves and dieback twigs were collected from a total of 49 farms within March to April in 2022. A total of 465 fungal isolates were obtained from a total of 358 isolated plant samples. Among these fungal isolates, 40 representatives of D. citrii isolates which were isolated from 22 twigs and 18 leaves on 23 farms were found based on cultural characteristics on potato dextrose agar and conidial morphology. Additionally, the molecular assay was carried out and compared with those by morphological diagnosis. All isolates were identified as D. citrii by analyzing the sequences at the internal transcribed spacer (ITS) rDNA region using primers of ITS1/ITS4 or at β-tubulin using primer Btdcitri-F/R. Therefore, based on the present study, where the results of morphological identification of conidial type were consistent with DNA sequence analysis of certain gene, choosing a suitable method for a fast diagnosis of citrus melanose was suggested.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47792455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1