Research in Plant Disease最新文献_第5页

Erratum: First Report of Pectobacterium versatile as the Causal Pathogen of Soft Rot in Kimchi Cabbage in Korea 勘误：韩国首次报告挥发性果胶杆菌为泡菜卷心菜软腐病的病原菌

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.204

Kyoung-Taek Park, Soo-Min Hong, C. Back, Young-je Cho, Seung-Yeol Lee, L. Ten, H. Jung

引用次数: 0

Research to Fungicide Sensitivity of Colletotrichum spp. Isolated from Apple Fruits in Cheongsong, Korea 韩国青松苹果果实炭疽菌的杀真菌敏感性研究

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.145

Jungyeon Kim, Heungtae Kim, Y. Jeon

{"title":"Research to Fungicide Sensitivity of Colletotrichum spp. Isolated from Apple Fruits in Cheongsong, Korea","authors":"Jungyeon Kim, Heungtae Kim, Y. Jeon","doi":"10.5423/rpd.2023.29.2.145","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.2.145","url":null,"abstract":"Apple grower in the Cheongsong region, Korea has reported the increased loss of apple yield due to severe bitter rot incidence. We noticed that this indience is because the Colletotrichum population has developed resistance to commonly used fungicides. We isolated 39 Colletotrichum isolates from 13 orchards in Cheongsong, and all the isolated Colletotrichum species were identified as C. siamense or C. fructicola. These 39 strains were tested for mycelial growth and conidial germination against 12 fungicides. trifloxystrobin (30–55% in recommended concentrations) was shown lower inhibitory effect on mycelial growth. However, the inhibition of conidial germination was shown higher than mycelial growth (62–100%). Kresoxim-methyl was shown lower inhibitory effect on mycelial growth (29–55%). conidial germination inhibitory effect was shown 51% to 96%. dithianon was shown diversity response to inhibition of mycelial growth (43–100%). tebuconazole was shown high inhibitory effect on mycelial growth (84–100%) and conidial germination inhibitory effect was shown to be 64 to 100%. metconazole has been found to display with high inhibitory effect on mycelial growth (79–100%) and conidial germination (70–80%). fluazinam was shown to possess high inhibitory effect on mycelial growth (87–100%) and conidial germination (94–100%). This study provides basic information for the effective management of apple bitter rot.","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":"41407784","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

Re-identification of Fusarium sambucinum Species Complex Strains in Korea and Their Literature Review 韩国桑镰刀菌复合菌株的再鉴定及其文献综述

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.118

Yunhee Choi, A. Mageswari, Hyorim Choi, Jisu Lee, Daseul Lee, Seung-Beom Hong

引用次数: 0

Resistance Characteristics of Chinese Cabbage Cultivars to Black Rot 大白菜品种对黑腐病的抗性特性研究

Research in Plant Disease Pub Date : 2023-06-30 DOI: 10.5423/rpd.2023.29.2.158

S. Lee, Jin Ju Lee, Y. Choi, Hun Kim, G. Choi

引用次数: 1

Diagnosis of Lily Plant Fasciation Caused by Rhodococcus fascians in Jeju Island 济州岛百合缠绕红球菌的诊断

Research in Plant Disease Pub Date : 2023-03-31 DOI: 10.5423/rpd.2023.29.1.39

Y. Shin, Min Ju Choi, Hyun Su Kang, Y. Jeun

引用次数: 0

Determination of Fire Blight Susceptibility on Wild Rosaceae Plants in Korea by Artificial Inoculation 人工接种法测定韩国野生蔷薇科植物对火疫病的敏感性

Research in Plant Disease Pub Date : 2023-03-31 DOI: 10.5423/rpd.2023.29.1.23

In Woong Park, Yu-Rim Song, Eom-Ji Oh, Yoel Kim, I. Hwang, M. Jeon, Chorong Ahn, Jin-Suk Kim, Soonok Kim, C. Oh

{"title":"Determination of Fire Blight Susceptibility on Wild Rosaceae Plants in Korea by Artificial Inoculation","authors":"In Woong Park, Yu-Rim Song, Eom-Ji Oh, Yoel Kim, I. Hwang, M. Jeon, Chorong Ahn, Jin-Suk Kim, Soonok Kim, C. Oh","doi":"10.5423/rpd.2023.29.1.23","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.1.23","url":null,"abstract":"The fire blight caused by Erwinia amylovora (Ea) is a devastating disease of Rosaceae plants, including commercially important apple and pear trees. Since the first report in Korea in May 2015, it has been spreading to neighboring regions gradually. Host plants can be infected by pollinators like bees, rainfall accompanied by wind, and cultural practices such as pruning. Many studies have revealed that wild Rosaceae plants such as Cotoneaster spp., Crataegus spp., Pyracantha spp., Prunus spp., and Sorbus spp. can be reservoirs of Ea in nature. However, wild Rosaceae plants in Korea have not been examined yet whether they are susceptible to fire blight. Therefore, the susceptibility to fire blight was examined with 25 species in 10 genera of wild Rosaceae plants, which were collected during 2020–2022, by artificial inoculation. Bacterial suspension (108 cfu/ml) of Ea type strain TS3128 was inoculated artificially in flowers, leaves, stems, and fruits of each plant species, and development of disease symptoms were monitored. Moreover, the presence of Ea bacteria from inoculated samples were checked by conventional polymerase chain reaction. Total 14 species of wild Rosaceae plants showed disease symptoms of fire blight, and Ea bacteria were detected inside of inoculated plant parts. These results suggest that wild Rosaceae plants growing nearby commercial apple and pear orchards in Korea can be Ea reservoirs, and thus they should be monitored regularly to minimize the damage by Ea infection and spreading.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42850987","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

First Report of Pectobacterium versatile as the Causal Pathogen of Soft Rot in Kimchi Cabbage in Korea 韩国白菜软腐病病原菌万能胸杆菌首次报道

Research in Plant Disease Pub Date : 2023-03-31 DOI: 10.5423/rpd.2023.29.1.72

Kyoung-Taek Park, Soo-Min Hong, C. Back, Young-Je Cho, Seung-Yeol Lee, L. Ten, Hee-Young Jung

引用次数: 0

Phylogenetic Analysis of Cucurbit Chlorotic Yellows Virus from Melon in 2020 in Chungbuk, Korea 2020年韩国忠清北道瓜源瓜绿黄病毒的系统发育分析

Research in Plant Disease Pub Date : 2023-03-31 DOI: 10.5423/rpd.2023.29.1.52

T. Jin, H. Kwak, Hongsoo Choi, B. Cha, Jong-Woo Han, Mikyeong Kim

{"title":"Phylogenetic Analysis of Cucurbit Chlorotic Yellows Virus from Melon in 2020 in Chungbuk, Korea","authors":"T. Jin, H. Kwak, Hongsoo Choi, B. Cha, Jong-Woo Han, Mikyeong Kim","doi":"10.5423/rpd.2023.29.1.52","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.1.52","url":null,"abstract":"Cucurbit chlorotic yellows virus (CCYV) is a plant virus that causes damage to cucurbit crops such as watermelon and cucumber, and is transmitted by an insect vector known as the whitefly. Since CCYV was first detected on cucumber in Chungbuk in 2018, it has been reported in other areas including Gyeongsang in Korea. In 2020, we performed field surveys of yellowing diseases in the greenhouses growing melon and watermelon in Chungbuk (Jincheon and Eumseong). Reverse transcription-polymerase chain reaction analysis of 79 collected samples including melon, watermelon, and weeds resulted in detection of CCYV in 4 samples: Three samples were singly infected with CCYV and one samples was mixed infected with CCYV, Cucurbit aphid borne yellows virus, and Watermelon mosaic virus. The complete genome sequences of the four collected CCYV melon isolates (ES 1–ES 4) were determined and genetically compared with those of previously reported CCYV isolates retrieved from GenBank. Phylogenetic analyses of RNA 1 and 2 sequences revealed that four ES isolates were clustered in one group and closely related to the CCYV isolates from China. The analysis also revealed very low genetic diversity among the CCYV ES isolates. In general, CCYV isolates showed little genetic diversity, regardless of host or geographic origins. CCYV has the potential to pose a serious threat to melon, watermelon, and cucumber production in Korea. Further studies are needed to examine the pathogenicity and transmissibility of CCYV in weeds and other cucurbits including watermelon.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48335685","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

Evaluation of Acitivity of QoI Fungicide against Colletotrichum acutatum s. lat. Causing Pepper Anthracnose Using Resazurin-Based Respiration Assay 基于Resazurin的呼吸测定法评价QoI杀菌剂对辣椒炭疽病菌的活性

Research in Plant Disease Pub Date : 2023-03-31 DOI: 10.5423/rpd.2023.29.1.11

Subin Park, Heungtae Kim

{"title":"Evaluation of Acitivity of QoI Fungicide against Colletotrichum acutatum s. lat. Causing Pepper Anthracnose Using Resazurin-Based Respiration Assay","authors":"Subin Park, Heungtae Kim","doi":"10.5423/rpd.2023.29.1.11","DOIUrl":"https://doi.org/10.5423/rpd.2023.29.1.11","url":null,"abstract":"Resazurin-based microtiter assay was used to evaluate the inhibitory effect of fungicides on the respiration of Colletotrichum acutatum s. lat. 20JDS8 sensitive and 20CDJ6 resistant to strobilurin fungicides. The spores of C. acutatum s. lat.. 20JDS8 were inoculated into potato dextrose broth (PDB) at densities of 1x104, 1x105 and 1x106 spores/ml, respectively. The relative fluorescence unit (RFU) of all treatments inoculated at each spore density started to rise after 12 hr of incubation, and were 1,965.5, 5,412.5, and 10,061.0, respectively, after 24 hr of incubation. To evaluate the inhibitory effect of fungicide on the respiration of the pathogen, the spores of the pathogen were inoculated into the PDB and treated with the fungicides 0, 6, 12, and 24 hr after incubation, respectively. After keeping the pathogen culturing for another 24 hr, PrestoBlue reagent was treated into the PDB culturing the pathogen. The RFU of each treatment was examined 1 hr after the reagent was treated. When dithianon, isopyrazam, pyraclostrobin, and fluazinam were treated at high concentrations in the stages of spores (immediately after inoculation [0 hr]), spore germination (after incubation for 6 hr), and hyphal growth (after incubation for 12 hr), the respiration of pathogens was inhibited by 90–100%. When the fungicides were treated after culturing the pathogen for 24 hr, the respiratory inhibitory effects were greatly reduced. With pyraclostrobin-resistant C. acutatum s. lat. 20CDJ6, azxoystrobin, trifloxystrobin and kresoxim-methyl, which have the same mode of action, had very little or no respiratory inhibitory effect in all growth stages of pathogens. Based on the above results, it was thought that the resazurin-based microtiter assay could quickly and accurately evaluate the inhibitory efficacy of the fungicides that inhibited respiration.","PeriodicalId":36349,"journal":{"name":"Research in Plant Disease","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44274628","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

Reduced Tomato Bacterial Wilt by Ferrous Chloride Application 应用氯化亚铁降低番茄青春病

Research in Plant Disease Pub Date : 2023-03-31 DOI: 10.5423/rpd.2023.29.1.82

Hyeon Ji Kim, S. Kim, Yeon Hwa Kim, J. Park, Dong Ki Kang, J. Yun, R. Shin, J. Hong

引用次数: 0