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Screening of Antagonistic Bacillus against Brown Rot in Dendrocalamus latiflorus and Preparation of Applying Bacterial Suspension. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Fengying Luo, Hang Chen, Wenjian Wei, Han Liu, Youzhong Chen, Shujiang Li
The aim of this study was to isolate biocontrol bacteria that could antagonize brown rot of Dendrocalamus latiflorus, optimize the culture conditions, and develop an effective biocontrol preparation for brown rot of D. latiflorus. This study isolated a bacterium with an antagonistic effect on bamboo brown rot from healthy D. latiflorus rhizosphere soil. Morphology, molecular biology, and physiological
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Re-identification of Colletotrichum gloeosporioides Species Complex Isolates in Korea and Their Host Plants. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Le Dinh Thao, Hyorim Choi, Yunhee Choi, Anbazhagan Mageswari, Daseul Lee, Dong-Hyun Kim, Hyeon-Dong Shin, Hyowon Choi, Ho-Jong Ju, Seung-Beom Hong
The Colletotrichum gloeosporioides species complex includes many phytopathogenic species, causing anthracnose disease on a wide range of host plants and appearing to be globally distributed. Seventy-one Colletotrichum isolates in the complex from different plants and geographic regions in Korea were preserved in the Korean Agricultural Culture Collection (KACC). Most of them had been identified based
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Transcriptomic Insights into Abies koreana Drought Tolerance Conferred by Aureobasidium pullulans AK10. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Jungwook Park, Mohamed Mannaa, Gil Han, Hyejung Jung, Hyo Seong Jeon, Jin-Cheol Kim, Ae Ran Park, Young-Su Seo
The conservation of the endangered Korean fir, Abies koreana, is of critical ecological importance. In our previous study, a yeast-like fungus identified as Aureobasidium pullulans AK10, was isolated and shown to enhance drought tolerance in A. koreana seedlings. In this study, the effectiveness of Au. pullulans AK10 treatment in enhancing drought tolerance in A. koreana was confirmed. Furthermore
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An Inexpensive System for Rapid and Accurate On-site Detection of Garlic-Infected Viruses by Agarose Gel Electrophoresis Followed by Array Assay. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Kazuyoshi Furuta, Shusuke Kawakubo, Jun Sasaki, Chikara Masuta
Garlic can be infected by a variety of viruses, but mixed infections with leek yellow stripe virus, onion yellow dwarf virus, and allexiviruses are the most damaging, so an easy, inexpensive on-site method to simultaneously detect at least these three viruses with a certain degree of accuracy is needed to produce virus-free plants. The most common laboratory method for diagnosis is multiplex reverse
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Stem Rot of Pearl Millet Prevalence, Symptomatology, Disease Cycle, Disease Rating Scale and Pathogen Characterization in Pearl Millet-Klebsiella Pathosystem. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Vinod Kumar Malik, Pooja Sangwan, Manjeet Singh, Pavitra Kumari, Niharika Shoeran, Navjeet Ahalawat, Mukesh Kumar, Harsh Deep, Kamla Malik, Preety Verma, Pankaj Yadav, Sheetal Kumari, Aakash, Sambandh Dhal
The oldest and most extensively cultivated form of millet, known as pearl millet (Pennisetum glaucum (L.) R. Br. Syn. Pennisetum americanum (L.) Leeke), is raised over 312.00 lakh hectares in Asian and African countries. India is regarded as the significant hotspot for pearl millet diversity. In the Indian state of Haryana, where pearl millet is grown, a new and catastrophic bacterial disease known
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Assessment of Resistance Induction in Mungbean against Alternaria alternata through RNA Interference. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Hira Abbas, Nazia Nahid, Muhammad Shah Nawaz Ul Rehman, Tayyaba Shaheen, Sadia Liaquat
A comprehensive survey of mungbean-growing areas was conducted to observe leaf spot disease caused by Alternaria alternata. Alternaria leaf spot symptoms were observed on the leaves. Diversity of 50 genotypes of mungbean was assessed against A. alternata and data on pathological traits was subjected to cluster analysis. The results showed that genotypes of mungbean were grouped into four clusters based
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Molecular Characterization of an Isolate of Bean Common Mosaic Virus First Identified in Gardenia Using Metatranscriptome and Small RNA Sequencing. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Zhong-Tian Xu, Hai-Tao Weng, Jian-Ping Chen, Chuan-Xi Zhang, Jun-Min Li, Yi-Yuan Li
Gardenia (Gardenia jasminoides) is a popular and economically vital plant known for its ornamental and medicinal properties. Despite its widespread cultivation, there has been no documentation of plant viruses on gardenia yet. In the present study, gardenia leaves exhibiting symptoms of plant viral diseases were sampled and sequenced by both metatranscriptome and small RNA sequencing. As a consequence
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Functional Analysis of Genes Specifically Expressed during Aerial Hyphae Collapse as a Potential Signal for Perithecium Formation Induction in Fusarium graminearum. Plant Pathol. J. (IF 2.3) Pub Date : 2024-02-01 Yun-Seon Choi, Da-Woon Kim, Sung-Hwan Yun
Fusarium graminearum, the causal agent of Fusarium head blight (FHB) in cereal crops, employs the production of sexual fruiting bodies (perithecia) on plant debris as a strategy for overwintering and dissemination. In an artificial condition (e.g., carrot agar medium), the F. graminearum Z3643 strain was capable of producing perithecia predominantly in the central region of the fungal culture where
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The Relationship between the Sugar Preference of Bacterial Pathogens and Virulence on Plants. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Ismaila Yakubu, Hyun Gi Kong
Plant pathogenic bacteria colonize plant surfaces and inner tissues to acquire essential nutrients. Nonstructural sugars hold paramount significance among these nutrients, as they serve as pivotal carbon sources for bacterial sustenance. They obtain sugar from their host by diverting nonstructural carbohydrates en route to the sink or enzymatic breakdown of structural carbohydrates within plant tissues
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The Rapid Apple Decline Phenomenon: Current Status and Expected Associated Factors in Korea. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Seung-Yeol Lee, Kari A Peter, Kallol Das, Avalos-Ruiz Diane, Hee-Young Jung
Rapid apple decline (RAD) is a complex phenomenon affecting cultivated apple trees and particularly dwarf rootstocks on grafted young apple trees. Since its first appearance in the United States, RAD has been reported worldwide, for example in Canada, South America, Africa, and Asia. The phenomenon has also been observed in apple orchards in Korea, and it presented similar symptoms regardless of apple
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Weather Conditions Drive the Damage Area Caused by Armillaria Root Disease in Coniferous Forests across Poland. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Paweł Lech, Oksana Mychayliv, Robert Hildebrand, Olga Orman
Armillaria root disease affects forests around the world. It occurs in many habitats and causes losses in the infested stands. Weather conditions are important factors for growth and development of Armillaria species. Yet, the relation between occurrence of damage caused by Armillaria disease and weather variables are still poorly understood. Thus, we used generalized linear mixed models to determine
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Unraveling the Role of Cytochrome P450 as a Key Regulator Lantipeptide Production in Streptomyces globisporus. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Da-Ran Kim, Su In Lee, Youn-Sig Kwak
The aim of this study was to investigate the regulation of lantipeptide production in Streptomyces globisporus SP6C4, which produces the novel antifungal lantipeptides conprimycin and grisin, and to identify the role of cytochrome P450 (P450) in tis regulation. To investigate the regulation of lantipeptide production, we created gene deletion mutants, including ΔP450, ΔtsrD, ΔlanM, ΔP450ΔtsrD, and
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Distribution and Pathogenicity of Fusarium Species Associated with Soybean Root Rot in Northeast China. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Yingying Liu, Xuena Wei, Feng Chang, Na Yu, Changhong Guo, Hongsheng Cai
Fusarium root rot is an increasingly severe problem in soybean cultivation. Although several Fusarium species have been reported to infect soybean roots in Heilongjiang province, their frequency and aggressiveness have not been systematically quantified in the region. This study aimed to investigate the diversity and distribution of Fusarium species that cause soybean root rot in Heilongjiang province
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A Marine Bacterium with Animal-Pathogen-Like Type III Secretion Elicits the Nonhost Hypersensitive Response in a Land Plant. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Boyoung Lee, Jeong-Im Lee, Soon-Kyeong Kwon, Choong-Min Ryu, Jihyun F Kim
Active plant immune response involving programmed cell death called the hypersensitive response (HR) is elicited by microbial effectors delivered through the type III secretion system (T3SS). The marine bacterium Hahella chejuensis contains two T3SSs that are similar to those of animal pathogens, but it was able to elicit HR-like cell death in the land plant Nicotiana benthamiana. The cell death was
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Generation and Retention of Defective RNA3 from Cucumber Mosaic Virus and Relevance of the 2b Protein to Generation of the Subviral RNA. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Emi Ota, Chikara Masuta, Minoru Takeshita
A defective RNA3 (D3Yα) of strain Y of cucumber mosaic virus (CMV-Y) was examined on host-specific maintenance, experimental conditions, and a viral factor required for its generation in plants. D3Yα was stably maintained in cucumber but not in tomato plants for 28 days post inoculation (dpi). D3Yα was generated in Nicotiana tabacum or N. benthamiana after prolonged infection in the second and the
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Biological Control of Fusarium oxysporum, the Causal Agent of Fusarium Basal Rot in Onion by Bacillus spp. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Jong-Hwan Shin, Ha-Kyoung Lee, Seong-Chan Lee, You-Kyoung Han
Fusarium oxysporum is the main pathogen causing Fusarium basal rot in onion (Allium cepa L.), which incurs significant yield losses before and after harvest. Among management strategies, biological control is an environmentally safe and sustainable alternative to chemical control. In this study, we isolated and screened bacteria for antifungal activity against the basal rot pathogen F. oxysporum. Isolates
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Monitoring of Benzimidazole Resistance in Botrytis cinerea Isolates from Strawberry in Korea and Development of Detection Method for Benzimidazole Resistance. Plant Pathol. J. (IF 2.3) Pub Date : 2023-12-01 Geonwoo Kim, Doeun Son, Sungyu Choi, Haifeng Liu, Youngju Nam, Hyunkyu Sang
Botrytis cinerea is a major fungal plant pathogen that causes gray mold disease in strawberries, leading to a decrease in strawberry yield. While benzimidazole is widely used as a fungicide for controlling this disease, the increasing prevalence of resistant populations to this fungicide undermines its effectiveness. To investigate benzimidazole resistant B. cinerea in South Korea, 78 strains were
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A Mutation of a Putative NDP-Sugar Epimerase Gene in Ralstonia pseudosolanacearum Attenuates Exopolysaccharide Production and Bacterial Virulence in Tomato Plant. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Hyoung Ju Lee, Sang-Moo Lee, Minseo Choi, Joo Hwan Kwon, Seon-Woo Lee
Ralstonia solanacearum species complex (RSSC) is a soil borne plant pathogen causing bacterial wilt on various important crops, including Solanaceae plants. The bacterial pathogens within the RSSC produce exopolysaccharide (EPS), a highly complicated nitrogen-containing heteropolymeric polysaccharide, as a major virulence factor. However, the biosynthetic pathway of the EPS in the RSSC has not been
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Evaluation and Genome Mining of Bacillus stercoris Isolate B.PNR1 as Potential Agent for Fusarium Wilt Control and Growth Promotion of Tomato. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Rattana Pengproh, Thanwanit Thanyasiriwat, Kusavadee Sangdee, Juthaporn Saengprajak, Praphat Kawicha, Aphidech Sangdee
Recently, strategies for controlling Fusarium oxysporum f. sp. lycopersici (Fol), the causal agent of Fusarium wilt of tomato, focus on using effective biocontrol agents. In this study, an analysis of the biocontrol and plant growth promoting (PGP) attributes of 11 isolates of loamy soil Bacillus spp. has been conducted. Among them, the isolates B.PNR1 and B.PNR2 inhibited the mycelial growth of Fol
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DNA Damage Triggers the Activation of Immune Response to Viral Pathogens via Salicylic Acid in Plants. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Hwi-Won Jeong, Tae Ho Ryu, Hyo-Jeong Lee, Kook-Hyung Kim, Rae-Dong Jeong
Plants are challenged by various pathogens throughout their lives, such as bacteria, viruses, fungi, and insects; consequently, they have evolved several defense mechanisms. In addition, plants have developed localized and systematic immune responses due to biotic and abiotic stress exposure. Animals are known to activate DNA damage responses (DDRs) and DNA damage sensor immune signals in response
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Physiology and Gene Expression Analysis of Tomato (Solanum lycopersicum L.) Exposed to Combined-Virus and Drought Stresses. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Samra Mirzayeva, Irada Huseynova, Canan Yüksel Özmen, Ali Ergül
Crop productivity can be obstructed by various biotic and abiotic stresses and thus these stresses are a threat to universal food security. The information on the use of viruses providing efficacy to plants facing growth challenges owing to stress is lacking. The role of induction of pathogen-related genes by microbes is also colossal in drought-endurance acquisition. Studies put forward the importance
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Development of Recombinase Polymerase Amplification Combined with Lateral Flow Strips for Rapid Detection of Cowpea Mild Mottle Virus. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Xinyan Wu, Shuting Chen, Zixin Zhang, Yihan Zhang, Pingmei Li, Xinyi Chen, Miaomiao Liu, Qian Lu, Zhongyi Li, Zhongyan Wei, Pei Xu
Cowpea mild mottle virus (CPMMV) is a global plant virus that poses a threat to the production and quality of legume crops. Early and accurate diagnosis is essential for effective managing CPMMV outbreaks. With the advancement in isothermal recombinase polymerase amplification and lateral flow strips technologies, more rapid and sensitive methods have become available for detecting this pathogen. In
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Molecular Marker Development for the Rapid Differentiation of Black Rot Causing Xanthomonas campestris pv. campestris Race 7. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Yeo-Hyeon Kim, Sopheap Mao, Nihar Sahu, Uzzal Somaddar, Hoy-Taek Kim, Masao Watanabe, Jong-In Park
Xanthomonas campestris pv. campestris (Xcc) is a plant pathogen of Brassica crops that causes black rot disease throughout the world. At present, 11 physiological races of Xcc (races 1-11) have been reported. The conventional method of using differential cultivars for Xcc race detection is not accurate and it is laborious and time-consuming. Therefore, the development of specific molecular markers
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Improvement of Fire Blight Blossom Infection Control Using Maryblyt in Korean Apple Orchards. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Kyung-Bong Namkung, Sung Chul Yun
After transitioning from periodic to model-based control policy for fire blight blossom infection, it is crucial to provide the timing of field application with easy and accurate information. To assess the risk of blossom infection, Maryblyt was employed in 31 sites across apple-producing regions nationwide, including areas prone to fire blight outbreaks, from 2021 to 2023. In 2021 and 2023, two and
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Plant Protective and Growth Promoting Effects of Seed Endophytes in Soybean Plants. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Jiwon Kim, Seong-Ho Ahn, Ji Sun Yang, Seonwoo Choi, Ho Won Jung, Junhyun Jeon
Seed-borne diseases reduce not only the seed germination and seedling growth but also seed quality, resulting in the significant yield loss in crop production. Plant seed harbors diverse microbes termed endophytes other than pathogens inside it. However, their roles and application to agricultures were rarely understood and explored to date. Recently, we had isolated from soybean seeds culturable endophytes
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Rapid and Sensitive Detection of the Causal Agents of Postharvest Kiwifruit Rot, Botryosphaeria dothidea and Diaporthe eres, Using a Recombinase Polymerase Amplification Assay. Plant Pathol. J. (IF 2.3) Pub Date : 2023-10-01 Gi-Gyeong Park, Wonyong Kim, Kwang-Yeol Yang
The occurrence of postharvest kiwifruit rot has caused great economic losses in major kiwifruit-producing countries. Several pathogens are involved in kiwifruit rot, notably Botryosphaeria dothidea, and Diaporthe species. In this study, a recombinase polymerase amplification (RPA) assay was developed for the rapid and sensitive detection of the pathogens responsible for posing significant threats to
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Analysis of Endophytic Bacterial Communities and Investigation of Core Taxa in Apple Trees. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Yejin Lee,Gyeongjun Cho,Da-Ran Kim,Youn-Sig Kwak
ire blight disease, caused by Erwinia amylovora, is a devastating affliction in apple cultivation worldwide. Chemical pesticides have exhibited limited effectiveness in controlling the disease, and biological control options for treating fruit trees are limited. Therefore, a relatively large-scale survey is necessary to develop microbial agents for apple trees. Here we collected healthy apple trees
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Re-identification of Colletotrichum acutatum Species Complex in Korea and Their Host Plants. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Le Dinh Thao,Hyorim Choi,Yunhee Choi,Anbazhagan Mageswari,Daseul Lee,Seung-Beom Hong
Colletotrichum acutatum species complex is one of the most important groups in the genus Colletotrichum with a high species diversity and a wide range of host plants. C. acutatum and related species have been collected from different plants and locations in Korea and deposited into the Korean Agricultural Culture Collection (KACC), National Institute of Agricultural Sciences since the 1990s. These
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Genomic Analysis of the Carrot Bacterial Blight Pathogen Xanthomonas hortorum pv. carotae in Korea. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Mi-Hyun Lee,Sung-Jun Hong,Dong Suk Park,Hyeonheui Ham,Hyun Gi Kong
Bacterial leaf blight of carrots caused by Xanthomonas hortorum pv. carotae (Xhc) is an important worldwide seed-borne disease. In 2012 and 2013, symptoms similar to bacterial leaf blight were found in carrot farms in Jeju Island, Korea. The phenotypic characteristics of the Korean isolation strains were similar to the type strain of Xhc. Pathogenicity showed symptoms on the 14th day after inoculation
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Evaluation of the Weeds around Capsicum annuum (CA) Cultivation Fields as Potential Habitats of CA-Infecting Viruses. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Min-Kyung Choi
Capsicum annuum (CA) is grown outdoors across fields in Jeollabuk-do, South Korea. The weeds surrounding these fields were investigated regarding the infection of 11 viruses infecting CA during the year 2014-2018. In the reverse transcription polymerase chain reaction diagnosis, 546 out of 821 CA samples (66.5%) were infected by nine viruses, and 190 out of 918 weed samples (20.7%) were infected by
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MoJMJD6, a Nuclear Protein, Regulates Conidial Germination and Appressorium Formation at the Early Stage of Pathogenesis in Magnaporthe oryzae. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Li Zhang,Dong Li,Min Lu,Zechi Wu,Chaotian Liu,Yingying Shi,Mengyu Zhang,Zhangjie Nan,Weixiang Wang
In plant-pathogen interactions, Magnaporthe oryzae causes blast disease on more than 50 species of 14 monocot plants, including important crops such as rice, millet, and most 15 recently wheat. M. oryzae is a model fungus for studying plant-microbe interaction, and the main source for fungal pathogenesis in the field. Here we report that MoJMJD6 is required for conidium germination and appressorium
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An Analysis of Plant Diseases Identification Based on Deep Learning Methods. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Xulu Gong,Shujuan Zhang
Plant disease is an important factor affecting crop yield. With various types and complex conditions, plant diseases cause serious economic losses, as well as modern agriculture constraints. Hence, rapid, accurate, and early identification of crop diseases is of great significance. Recent developments in deep learning, especially convolutional neural network (CNN), have shown impressive performance
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Occurrence of Faba Bean Diseases and Determinants of Faba Bean Gall (Physoderma sp.) Epidemics in Ethiopia. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Tekalign Zeleke,Bereket Ali,Asenakech Tekalign,Gudisa Hailu,M J Barbetti,Alemayehu Ayele,Tajudin Aliyi,Alemu Ayele,Abadi Kahsay,Belachew Tiruneh,Fekadu Tewolde
Physoderma fungal species cause faba bean gall (FBG) which devastates faba bean (Vicia faba L.) in the Ethiopian highlands. In three regions (Amahara, Oromia, and Tigray), the relative importance, distribution, intensity, and association with factors affecting FBG damage were assessed for the 2019 (283 fields) and 2020 (716 fields) main cropping seasons. A logistic regression model was used to associate
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A Field Deployable Real-Time Loop-Mediated Isothermal Amplification Targeting Five Copy nrdB Gene for the Detection of 'Candidatus Liberibacter asiaticus' in Citrus. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Tirumalareddy Danda,Jong-Won Park,Kimberly L Timmons,Mamoudou Sétamou,Eliezer S Louzada,Madhurababu Kunta
Huanglongbing (HLB) is one of the most destructive diseases in citrus, which imperils the sustainability of citriculture worldwide. The presumed causal agent of HLB, 'Candidatus Liberibacter asiaticus' (CLas) is a non-culturable phloem-limited α-proteobacterium transmitted by Asian citrus psyllids (ACP, Diaphorina citri Kuwayama). A widely adopted method for HLB diagnosis is based on quantitative real-time
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Chemical Resistance of Diaporthe citri against Systemic Fungicides on Citrus. Plant Pathol. J. (IF 2.3) Pub Date : 2023-08-01 Zar Zar Soe,Yong Ho Shin,Hyun Su Kang,Yong Chull Jeun
Citrus melanose, caused by Diaporthe citri, has been one of the serious diseases, and chemical fungicides were used for protection in many citrus orchards of Jeju Island. Establishing a disinfectant resistance management system and reducing pesticide usage would be important for contributing to safe agricultural production. In this study, monitoring of chemical resistance was performed with 40 representative
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Construction of an Agroinfectious Clone of a Korean Isolate of Sweet Potato Symptomless Virus 1 and Comparison of Its Infectivity According to Agrobacterium tumefaciens Strains in Nicotiana benthamiana. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Phuong T Ho,Hee-Seong Byun,Thuy T B Vo,Aamir Lal,Sukchan Lee,Eui-Joon Kil
Sweet potato symptomless virus 1 (SPSMV-1) is a single-stranded circular DNA virus, belonging to the genus Mastrevirus (family Geminiviridae) that was first identified on sweet potato plants in South Korea in 2012. Although SPSMV-1 does not induce distinct symptoms in sweet potato plants, its co-infection with different sweet potato viruses is highly prevalent, and thus threatens sweet potato production
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Rapid Identification of Jasmine Virus H Infecting Ixora coccinea by Nanopore Metatranscriptomics. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Sung-Woong Kim,Hyo-Jeong Lee,Sena Choi,In-Sook Cho,Rae-Dong Jeong
The global climate change and international trade have facilitated the movement of plants across borders, increasing the risk of introducing novel plant viruses in new territories. Ixora coccinea exhibited virus-like foliar symptoms, including mosaic and mild mottle. An Oxford Nanopore Technologies-based compact and portable MinION platform was used to identify the causal viral pathogen. The complete
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The Potency of Abamectin Formulations against the Pine Wood Nematode, Bursaphelenchus xylophilus. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Jong-Won Lee,Abraham Okki Mwamula,Jae-Hyuk Choi,Ho-Wook Lee,Yi Seul Lee,Jin-Hyo Kim,Dong Woon Lee
Abamectin offers great protection against Bursaphelenchus xylophilus, a well-known devastating pathogen of pine tree stands. Trunk injection of nematicides is currently the most preferred method of control. This study aimed to evaluate the potency of the commonly used formulations of abamectin against B. xylophilus. Twenty-one formulations of abamectin were evaluated by comparing their sublethal toxicities
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Antifungal Activity of Green and Chemically Synthesized ZnO Nanoparticles against Alternaria citri, the Causal Agent Citrus Black Rot. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Hazem S Elshafie,Ali Osman,Mahmoud M El-Saber,Ippolito Camele,Entsar Abbas
Citrus black rot is a serious disease of citrus plants caused by Alternaria citri. The current study aimed to synthesize zinc oxide nanoparticles (ZnO-NPs) by chemically or green method and investigate their antifungal activity against A. citri. The sizes of synthesized as measured by transmission electron microscope of ZnO-NPs were 88 and 65 nm for chemical and green methods, respectively. The studied
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Variations in Kiwifruit Microbiota across Cultivars and Tissues during Developmental Stages. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Su-Hyeon Kim,Da-Ran Kim,Youn-Sig Kwak
The plant microbiota plays a crucial role in promoting plant health by facilitating the nutrient acquisition, abiotic stress tolerance, biotic stress resilience, and host immune regulation. Despite decades of research efforts, the precise relationship and function between plants and microorganisms remain unclear. Kiwifruit (Actinidia spp.) is a widely cultivated horticultural crop known for its high
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Proteomic and Phenotypic Analyses of a Putative YggS Family Pyridoxal Phosphate-Dependent Enzyme in Acidovorax citrulli. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Lynn Heo,Yongmin Cho,Junhyeok Choi,Jeongwook Lee,Yoobin Han,Sang-Wook Han
Acidovorax citrulli (Ac) is a phytopathogenic bacterium that causes bacterial fruit blotch (BFB) in cucurbit crops, including watermelon. However, there are no effective methods to control this disease. YggS family pyridoxal phosphate-dependent enzyme acts as a coenzyme in all transamination reactions, but its function in Ac is poorly understood. Therefore, this study uses proteomic and phenotypic
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Identification and Characterization of Diplodia parva and Diplodia crataegicola Causing Black Rot of Chinese Quince. Plant Pathol. J. (IF 2.3) Pub Date : 2023-06-01 Sungmun Kwon,Jungyeon Kim,Younmi Lee,Kotnala Balaraju,Yongho Jeon
Fungal isolates from infected Chinese quince trees were found to cause black rot in Yeongcheon, Gyeongsangbuk Province, Korea. The quince leaves withered and turned reddish-brown and fruits underwent black mummification. To elucidate the cause of these symptoms, the pathogen was isolated from infected leaf and fruit tissues on potato dextrose agar and Levan media. Several fungal colonies forming a
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An Alternative Method to Evaluate Resistance to Pear Scab (Venturia nashicola). Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Kyungho Won, Eu Ddeum Choi, Keumsun Kim, Hae Won Jung, Il Sheob Shin, Seongsig Hong, Cécile Segonzac, Young Jin Kim
Two pear cultivars with different degrees of resistance to Venturia nashicola were evaluated on the basis of a disease severity rating for pear scab resistance under controlled environmental condition. Two inoculation techniques were tested: the procedure for inoculation by dropping conidia suspension of V. nashicola; the procedure by deposition of agar plug on the abaxial surface of pear leaves. All
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Light and Electron Microscopy Studies Elucidating Mechanisms of Tomato Leaf Infection by Pseudocercospora fuligena. Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Zelalem Mersha, Girma Birru, Bernhard Hau
The fungal pathogen Pseudocercospora fuligena, known to affect tomatoes in the tropics and subtropics, has been reported from temperate climates including the United States and Turkey in recent years. In this study, an isolate from fresh tomatoes and the disease it causes were characterized and infection mechanisms investigated. Macroscopically, both sides of tomato leaves show indistinct effuse patches
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Different Response Mechanisms of Rhizosphere Microbial Communities in Two Species of Amorphophallus to Pectobacterium carotovorum subsp. carotovorum Infection. Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Min Yang, Ying Qi, Jiani Liu, Penghua Gao, Feiyan Huang, Lei Yu, Hairu Chen
Soft rot is a widespread, catastrophic disease caused by Pectobacterium carotovorum subsp. carotovorum (Pcc) that severely damages the production of Amorphophallus spp. This study evaluated the rhizosphere bacterial and fungal communities in Pcc-infected and uninfected plants of two species of Amorphophallus, A. muelleri and A. konjac. Principal component analysis showed that the samples formed different
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Comparative Genomic Analysis and Rapid Molecular Detection of Xanthomonas euvesicatoria Using Unique ATP-Dependent DNA Helicase recQ, hrpB1, and hrpB2 Genes Isolated from Physalis pubescens in China. Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Faisal Siddique, Yang Mingxiu, Xu Xiaofeng, Ni Zhe, Haseeb Younis, Peng Lili, Zhang Junhua
Ground cherry (Physalis pubescens) is the most prominent species in the Solanaceae family due to its nutritional content, and prospective health advantages. It is grown all over the world, but notably in northern China. In 2019 firstly bacterial leaf spot (BLS) disease was identified on P. pubescens in China that caused by both BLS pathogens Xanthomonas euvesicatoria pv. euvesicatoria resulted in substantial
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Cultivar Resistance of Korean Breeding Cut-Rose against Crown Gall by Agrobacterium tumefaciens Evaluated by an In Vitro Inoculation. Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Serah Lim, Se Chul Chun, Jin-Won Kim
Rose crown gall caused by Agrobacterium tumefaciens is a major disease that damages the production of cut-roses in Korea. The effective prevention methods for this disease include the use of resistant varieties. This study was conducted to evaluate the resistance of 58 Korean cultivars and six foreign cultivars to crown gall disease with nodal explants in vitro. Among 180 A. tumefaciens strains, pathogenic
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Variability in Responses to Phoma medicaginis Infection in a Tunisian Collection of Three Annual Medicago Species. Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Mounawer Badri, Amina Ayadi, Asma Mahjoub, Amani Benltoufa, Manel Chaouachi, Rania Ranouch, Najah Ben Cheikh, Aissa Abdelguerf, Meriem Laouar, Chedly Abdelly, Ndiko Ludidi, Naceur Djébali
Spring black stem and leaf spot, caused by Phoma medicaginis, is an issue in annual Medicago species. Therefore, in this study, we analyzed the response to P. medicaginis infection in a collection of 46 lines of three annual Medicago species (M. truncatula, M. ciliaris, and M. polymorpha) showing different geographic distribution in Tunisia. The reaction in the host to the disease is explained by the
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Defense Inducer Compounds Up-regulated the Peroxidase, Polyphenol Oxidase, and Total Phenol Activities against Spot Blotch Disease of Wheat. Plant Pathol. J. (IF 2.3) Pub Date : 2023-04-01 Puja Kumari, Chandrashekhar Azad, Ravi Ranjan Kumar, Jyoti Kumari, Kumar Aditya, Amarendra Kumar
Spot blotch disease of wheat caused by Bipolaris sorokiniana (Sacc.) Shoem is considered as an economically important disease which affects all the growing stages of wheat crop. Therefore, it is important to search some effective management strategies against the spot blotch pathogen. Some synthetic elicitor compounds (salicylic acid, isonicotinic acid, and chitosan) and nano-particles (silver and
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Past and Future Epidemiological Perspectives and Integrated Management of Rice Bakanae in Korea. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Soobin Shin, Hyunjoo Ryu, Jin-Yong Jung, Yoon-Ju Yoon, Gudam Kwon, Nahyun Lee, Na Hee Kim, Rowoon Lee, Jiseon Oh, Minju Baek, Yoon Soo Choi, Jungho Lee, Kwang-Hyung Kim
In the past, rice bakanae was considered an endemic disease that did not cause significant losses in Korea; however, the disease has recently become a serious threat due to climate change, changes in farming practices, and the emergence of fungicide-resistant strains. Since the bakanae outbreak in 2006, its incidence has gradually decreased due to the application of effective control measures such
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Regulation of Salicylic Acid and N-Hydroxy-Pipecolic Acid in Systemic Acquired Resistance. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Gah-Hyun Lim
In plants, salicylic acid (SA) is a central immune signal that is involved in both local and systemic acquired resistance (SAR). In addition to SA, several other chemical signals are also involved in SAR and these include N-hydroxy-pipecolic acid (NHP), a newly discovered plant metabolite that plays a crucial role in SAR. Recent discoveries have led to a better understanding of the biosynthesis of
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The Crucial Role of Chloroplast-Related Proteins in Viral Genome Replication and Host Defense against Positive-Sense Single-Stranded RNA Viruses. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 John Bwalya, Kook-Hyung Kim
Plant viruses are responsible for worldwide production losses of numerous economically important crops. The most common plant RNA viruses are positivesense single-stranded RNA viruses [(+)ss RNA viruses]. These viruses have small genomes that encode a limited number of proteins. The viruses depend on their host's machinery for the replication of their RNA genome, assembly, movement, and attraction
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Colony Age of Trichoderma azevedoi Alters the Profile of Volatile Organic Compounds and Ability to Suppress Sclerotinia sclerotiorum in Bean Plants. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Lincon Rafael da Silva, Leonardo Luís de Barros Rodrigues, Amanda Silva Botelho, Bruna Sartório de Castro, Paulo Henrique Pereira Costa Muniz, Maria Carolina Blassioli Moraes, Sueli Corrêa Marques de Mello
Common bean (Phaseolus vulgaris L.) is one of the most important crops in human food production. The occurrence of diseases, such as white mold, caused by Sclerotinia sclerotiorum can limit the production of this legume. The use of Trichoderma has become an important strategy in the suppression of this disease. The aim of the present study was to evaluate the effect of volatile organic compounds (VOCs)
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Copper-Based Compounds against Erwinia amylovora: Response Parameter Analysis and Suppression of Fire Blight in Apple. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Duck Kyu Ryu, Mahesh Adhikari, Dong Hyuk Choi, Kyung Jin Jun, Do Hyoung Kim, Chae Ryeong Kim, Min Kyu Kang, Duck Hwan Park
Fire blight, caused by Erwinia amylovora, is one of the major bacterial disease of apple and pear, causing enormous economic losses worldwide. Several control measures against E. amylovora have been reported till date, however, none of them have proved to be effective significantly against the pathogen. In this study, mechanisms of the copper-based control agents (CBCAs): copper oxychloride (COCHL)
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Disruption of the metC Gene Affects Methionine Biosynthesis in Pectobacterium carotovorum subsp. carotovorum Pcc21 and Reduces Soft-Rot Disease. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Seonmi Yu, Jihee Kang, Eui-Hwan Chung, Yunho Lee
Plant pathogenic Pectobacterium species cause severe soft rot/blackleg diseases in many economically important crops worldwide. Pectobacterium utilizes plant cell wall degrading enzymes (PCWDEs) as the main virulence determinants for its pathogenicity. In this study, we screened a random mutant, M29 is a transposon insertion mutation in the metC gene encoding cystathionine β-lyase that catalyzes cystathionine
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Comparative Bioactivity of Emamectin Benzoate Formulations against the Pine Wood Nematode, Bursaphelenchus xylophilus. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Jong-Won Lee, Abraham Okki Mwamula, Jae-Hyuk Choi, Ho-Wook Lee, Yi Seul Kim, Jin-Hyo Kim, Yong-Hwa Choi, Dong Woon Lee
The pine wood nematode (PWN), Bursaphelenchus xylophilus is a well-known devastating pathogen of economic importance in the Republic of Korea and other countries. In the Republic of Korea, trunk injection of nematicides is the preferred method of control. In this study, the efficacy of 16 locally produced formulations of emamectin benzoate against the PWN are compared through determining their sublethal
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Identification and Characterization of Pseudomonas syringae pv. syringae, a Causative Bacterium of Apple Canker in Korea. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Seunghee Lee, Wonsu Cheon, Hyeok Tae Kwon, Younmi Lee, Jungyeon Kim, Kotnala Balaraju, Yongho Jeon
In the present investigation, bacterial isolates from infected apple trees causing apple canker during winter were studied in the northern Gyeongbuk Province, Korea. The pathogen was identified as Pseudomonas syringae pv. syringae (Pss) through various physiological and biochemical characterization assays such as BIOLOG, gas chromatography of fatty acid methyl esters, and 16S rRNA. Bioassays for the
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Evaluation of Soil Streptomyces spp. for the Biological Control of Fusarium Wilt Disease and Growth Promotion in Tomato and Banana. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Praphat Kawicha, Jariya Nitayaros, Prakob Saman, Sirikanya Thaporn, Thanwanit Thanyasiriwat, Khanitta Somtrakoon, Kusavadee Sangdee, Aphidech Sangdee
Fusarium oxysporum f. sp. lycopersici (Fol) and Fusarium oxysporum f. sp. cubense (Foc), are the causal agent of Fusarium wilt disease of tomato and banana, respectively, and cause significant yield losses worldwide. A cost-effective measure, such as biological control agents, was used as an alternative method to control these pathogens. Therefore, in this study, six isolates of the Streptomyces-like
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Anti-Oomycete Activity and Pepper Root Colonization of Pseudomonas plecoglossicida YJR13 and Pseudomonas putida YJR92 against Phytophthora capsici. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Elena Volynchikova, Ki Deok Kim
Previously, Pseudomonas plecoglossicida YJR13 and Pseudomonas putida YJR92 from a sequential screening procedure were proven to effectively control Phytophthora blight caused by Phytophthora capsici. In this study, we further investigated the anti-oomycete activities of these strains against mycelial growth, zoospore germination, and germ tube elongation of P. capsici. We also investigated root colonization
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Outbreak of Rice Panicle Blast in Jeonbuk Province of Korea in 2021. Plant Pathol. J. (IF 2.3) Pub Date : 2023-02-01 Hyunjung Chung, Woo-Il Lee, Soo Yeon Choi, Nak-Jung Choi, Sang-Min Kim, Ju-Yeon Yoon, Bong Choon Lee
Rice panicle blast is one of the most serious diseases threatening stable rice production by causing severe damage to rice yields and quality. The disease is easy to occur under low air temperature and frequent heavy rainfall during the heading season of rice. In 2021, a rice panicle blast severely occurred in the Jeonbuk province of Korea. The incidence area of panicle blast accounted for 27.7% of