Plant Pathology Journal最新文献_第4页

Alfalfa Rotation Enhances Soil Microbial Diversity and Reduces Tilletia foetida DNA Abundance in Common Bunt-Infected Wheat Fields. 苜蓿轮作提高了普通小麦黑穗病土壤微生物多样性，降低了小麦草DNA丰度。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-08-01 Epub Date: 2026-05-29 DOI: 10.5423/PPJ.OA.11.2025.0170

Delai Chen, Guy Smagghe, Jingjing Su, Ruirui Liu, Tian Tian, Shujuan Xu, Yongqiang Yang, Shirong Ma, Wenjie Zhang, Shijuan Li, Fuhan Zhong, Ghulam Muhae-Ud-Din

{"title":"Alfalfa Rotation Enhances Soil Microbial Diversity and Reduces Tilletia foetida DNA Abundance in Common Bunt-Infected Wheat Fields.","authors":"Delai Chen, Guy Smagghe, Jingjing Su, Ruirui Liu, Tian Tian, Shujuan Xu, Yongqiang Yang, Shirong Ma, Wenjie Zhang, Shijuan Li, Fuhan Zhong, Ghulam Muhae-Ud-Din","doi":"10.5423/PPJ.OA.11.2025.0170","DOIUrl":"10.5423/PPJ.OA.11.2025.0170","url":null,"abstract":"The pathogenic fungus Tilletia foetida causes common bunt in wheat, replacing grains with black spores and consequently reducing yield and quality. To assess the impact of crop rotation on soil health and pathogen dynamics, we investigated the effects of Medicago sativa L. (alfalfa) rotation on common bunt-infected wheat fields, compared with Avena sativa L. (oat) rotation. Soil eukaryotic communities were analyzed using Illumina MiSeq 18S rDNA sequencing. Additionally, soil physicochemical properties, enzyme activities (urease, phosphatase, peroxidase, and sucrase), and the abundance of T. foetida DNA were measured. Results showed that alfalfa/wheat rotation increased soil eukaryotic communities in the soil rhizosphere. The most abundant phyla were Mucoromycota, Mollusca, and Basidiomycota. While total phosphorus (TP), total nitrogen (TN), and pH remained largely unchanged, NO3--N, NH4+-N, and available potassium (AK) levels varied, correlating with changes in enzyme activities and soil eukaryotic communities composition. Compared with diseased wheat monoculture, alfalfa rotation was associated with significantly lower soil T. foetida DNA abundance and enhanced soil enzyme activity. These findings indicate that alfalfa rotation substantially improves the soil eukaryotic community, and plays a crucial role in reducing the T. foetida DNA abundance in soil.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"412-426"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13462762/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148056116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occurrence and Genomic Characterization of Japanese Iris Necrotic Ring Virus Isolated from Narcissus spp. in Korea. 韩国水仙花属日本鸢尾坏死环病毒的发生及基因组特征。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-08-01 Epub Date: 2026-06-12 DOI: 10.5423/PPJ.OA.12.2025.0176

Minseok Kim, Minjoo Yang, Jean Geung Min, Sangmin Bak, Seungbin Baek, Jin-Sung Hong, Hae-Ryun Kwak, Su-Heon Lee

{"title":"Occurrence and Genomic Characterization of Japanese Iris Necrotic Ring Virus Isolated from Narcissus spp. in Korea.","authors":"Minseok Kim, Minjoo Yang, Jean Geung Min, Sangmin Bak, Seungbin Baek, Jin-Sung Hong, Hae-Ryun Kwak, Su-Heon Lee","doi":"10.5423/PPJ.OA.12.2025.0176","DOIUrl":"10.5423/PPJ.OA.12.2025.0176","url":null,"abstract":"Metatranscriptome analysis and reverse transcription polymerase chain reaction (RT-PCR) were performed on 75 Narcissus to investigate viral disease, leading to the detection of Japanese iris necrotic ring virus (JINRV, Betacarmovirus iridis). RT-PCR detected JINRV in 22 of 75 samples, all collected from Shinan, with a regional infection rate of 55.0% (22/40). The complete genome sequence of JINRV isolate SA36 was 4,060 nucleotides long and contained five open reading frames. Sequence analysis revealed that Narcissus-derived JINRV isolates shared 98.0-100% coat protein amino acid identity among themselves, and 71.9-91.5% with previously reported Iris-derived isolates. Sap inoculations showed that JINRV was mechanically transmitted to Cucurbita pepo. JINRV was exclusively detected in plants co-infected with other viruses, reflecting the complex mixed infection status prevalent in Narcissus. This study is expected to contribute to the quarantine of Narcissus bulbs and to the production of high-quality Narcissus in Korea.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"545-552"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13462847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148227450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Antifungal Evaluation of a Ynone-Tethered 2‑Pyrone Derivative against Phytopathogenic Fungi. 一种炔系2 -吡咯酮衍生物的合成及对植物病原真菌的抑菌活性评价。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-08-01 Epub Date: 2026-06-22 DOI: 10.5423/PPJ.OA.04.2026.0064

Heeeun Kim, Juwon Yang, Jiyeun Park, Hyerim Kim, Min-Gi Kim, Kye Sung Park, Keedon Han, Hokyoung Son, Yonghoon Kwon

{"title":"Synthesis and Antifungal Evaluation of a Ynone-Tethered 2‑Pyrone Derivative against Phytopathogenic Fungi.","authors":"Heeeun Kim, Juwon Yang, Jiyeun Park, Hyerim Kim, Min-Gi Kim, Kye Sung Park, Keedon Han, Hokyoung Son, Yonghoon Kwon","doi":"10.5423/PPJ.OA.04.2026.0064","DOIUrl":"10.5423/PPJ.OA.04.2026.0064","url":null,"abstract":"Numerous fungicides are essential for controlling phytopathogens, enabling modern industrial agriculture to maximize productivity and profitability. However, the extensive use of widely employed fungicides, such as tebuconazole and carbendazim, has led to reduced efficacy due to the emergence of resistant plant-pathogenic fungi. Accordingly, in this study, we synthesized a 2‑pyrone chemotype bearing a ynone substituent, designated as ynone 6 and evaluated its potential as an antifungal scaffold. This representative lead compound exhibited broad-spectrum antifungal activity against five major phytopathogens, including Fusarium graminearum and Botrytis cinerea. Ynone 6 demonstrated potent in planta control efficacy across various host tissues, including wheat spikes, fruits, and leaves, with inhibitory effects comparable to those of tebuconazole. Sensitivity screening using six knockout mutants targeting well-established antifungal pathways revealed that the sensitivity profiles of the mutants differed significantly between conidial germination and hyphal growth, suggesting that the mode of action of ynone 6 is stage-dependent and may involve multiple targets. Collectively, the potent in vitro activity of ynone 6 and its consistent in planta efficacy across multiple host-pathogen systems highlight the ynone-tethered 2-pyrone scaffold as a promising lead scaffold for the development of effective antifungal agents.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"473-486"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13462854/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148296074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Protective Rhizobacterial Strains Against Black Shoot Blight Caused by Erwinia pyrifoliae on Apple Plants. 苹果黑腐病根瘤菌保护性菌株研究。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-08-01 Epub Date: 2026-07-09 DOI: 10.5423/PPJ.OA.03.2026.0039

Hyun Jin Sim, Su Jeung Kim, Rico Leiser, Emeline Terlingen, Yong Chull Jeun

{"title":"Protective Rhizobacterial Strains Against Black Shoot Blight Caused by Erwinia pyrifoliae on Apple Plants.","authors":"Hyun Jin Sim, Su Jeung Kim, Rico Leiser, Emeline Terlingen, Yong Chull Jeun","doi":"10.5423/PPJ.OA.03.2026.0039","DOIUrl":"10.5423/PPJ.OA.03.2026.0039","url":null,"abstract":"Disease suppression against black shoot blight caused by Erwinia pyrifoliae was evaluated using rhizobacterial strains isolated from Jeju Island in apple plants. Total 81 rhizobacterial strains were isolated from plant rhizospheres collected on Jeju Island. Among them, three isolates DR1-6, DR2-3, and DRB1-1 exhibiting antibacterial activity on artificial media were selected for further evaluation. In inoculation bioassays, disease severity on apple leaves was significantly reduced following treatment with mixtures of E. pyrifoliae and the rhizobacterial strains. Notably, DRB1-1 and DR2-3 reduced disease severity to levels comparable to antibiotic treatment, while DR1-6 showed only moderate suppression despite strong in vitro antibacterial activity. Quantitative analysis using qPCR revealed significant reductions in E. pyrifoliae populations on treated leaves, consistent with disease suppression. Based on 16S rRNA gene sequence analysis and scanning electron microscopy, strains DR1-6, DR2-3, and DRB1-1 were identified as Pseudomonas fluorescens, Serratia nematodiphila, and Paenibacillus polymyxa, respectively. These results indicate that the selected rhizobacterial strains have potential as biocontrol agents for managing black shoot blight in crop plants, including apple.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"524-532"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13462848/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148412633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-Thermal Plasma Technologies for Plant Virus Inactivation: Sources, Mechanisms, and Practical Applications. 植物病毒灭活的非热等离子体技术：来源、机制和实际应用

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-06-01 Epub Date: 2026-04-15 DOI: 10.5423/PPJ.RW.02.2026.0013

Mi-Ri Park, Min-Jae Kim, Sang-Yun Cho, Rae-Dong Jeong

{"title":"Non-Thermal Plasma Technologies for Plant Virus Inactivation: Sources, Mechanisms, and Practical Applications.","authors":"Mi-Ri Park, Min-Jae Kim, Sang-Yun Cho, Rae-Dong Jeong","doi":"10.5423/PPJ.RW.02.2026.0013","DOIUrl":"10.5423/PPJ.RW.02.2026.0013","url":null,"abstract":"Plant virus diseases reduce crop yield and quality worldwide; moreover, curative options once systemic infection is established remain scarce. Non-thermal plasma (NTP; cold atmospheric plasma) is a residuefree, near-ambient technology that generates reactive oxygen and nitrogen species (RONS) with strong virucidal activity. This review summarizes major sources of NTP, including dielectric barrier discharges, plasma jets, and corona/streamer discharges; plasma chemistry in gas and liquid phases; molecular mechanisms of virus inactivation, including capsid protein oxidation/denaturation, limited lipid peroxidation in enveloped plant viruses, and genome damage that suppresses replication. Evidence from plant virus studies indicates that highly stable viruses lose infectivity and that waterborne inactivation is efficient, supporting the use of NTP and plasma-activated water as practical tools for sanitizing irrigation water, recirculating hydroponic solutions, and contact surfaces. Emerging greenhouse studies have suggested that plasma-generated oxidants, including ozone, can curb water-mediated dissemination. Hence, we compare NTP with thermotherapy, irradiation, and chemical antiviral approaches, and discuss safety, scalability, and economic considerations. Key priorities for translation include standardized dose and chemistry metrics, infectivity-based endpoints in realistic matrices, scalable reactors that ensure uniform treatment at high throughput, and multi-site validation under commercial production conditions.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"237-251"},"PeriodicalIF":2.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13243911/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of Plasmodesmata During Plant-Pathogen Interactions. 间连丝在植物与病原体相互作用中的作用。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-06-01 Epub Date: 2026-04-20 DOI: 10.5423/PPJ.RW.12.2025.0180

Namo Dubey, Subhash Kumar, Junhyun Jeon

{"title":"Role of Plasmodesmata During Plant-Pathogen Interactions.","authors":"Namo Dubey, Subhash Kumar, Junhyun Jeon","doi":"10.5423/PPJ.RW.12.2025.0180","DOIUrl":"10.5423/PPJ.RW.12.2025.0180","url":null,"abstract":"Plasmodesmata (PD) facilitate the continuity of plasma membrane and cytoplasm between plant cells. They are crucial for intercellular communication and signaling. Plant pathogens have developed a diverse array of mechanisms to exploit the PD. There is increasing evidence that PD is actively involved in plant defense responses. Viral movement proteins alter PD architecture, cytoskeletal organization, and associated protein complexes, facilitating intercellular movement of viral genomes. Similarly, bacterial and fungal effectors target PD to suppress defense signaling and enhance colonization. During pathogen recognition, PD undergo dynamic closure as part of pattern-triggered immunity, largely mediated by callose deposition at PD neck regions. Over the past few years, significant progress has been made in elucidating the functions of PD in plantpathogen interaction. However, there are still numerous critical areas that require attention. The current review emphasizes the crucial role of pathogen-PD interactions in shaping PD-molecular flux and explores their impact on hormone signaling and different cell types during intercellular movement of pathogens. This review emphasizes the need for deeper insights into PD regulation during plant-pathogen interactions, focusing on molecular targets exploited by pathogens. Elucidating the molecular mechanisms underlying PD-mediated defense will advance our understanding of plant immunity and aid in developing innovative strategies for sustainable disease management.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"252-272"},"PeriodicalIF":2.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13243908/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147729508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mutation of AV2 Start Codon Impairs the Infectivity of a Bipartite Begomovirus Under High Temperature. AV2启动密码子突变对双部begomavirus高温感染的影响

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-06-01 Epub Date: 2026-04-15 DOI: 10.5423/PPJ.OA.10.2025.0149

Jing-Ru Zhang, Ya-Min Wu, Yin-Quan Liu, Li-Long Pan

{"title":"Mutation of AV2 Start Codon Impairs the Infectivity of a Bipartite Begomovirus Under High Temperature.","authors":"Jing-Ru Zhang, Ya-Min Wu, Yin-Quan Liu, Li-Long Pan","doi":"10.5423/PPJ.OA.10.2025.0149","DOIUrl":"10.5423/PPJ.OA.10.2025.0149","url":null,"abstract":"Viruses, a group of non-cellular parasites, pose serious threats to human health and agriculture. While viral genetic variations modulating virus adaptation to biotic stresses have been reported, whether and how they affect virus interactions with abiotic stresses such as high temperature remain unknown. Here, we report the impact of AV2 mutations on the life cycle of squash leaf curl China virus (SLCCNV), a bipartite begomoviruses. We first conducted sequence analysis and identified a naturally-occurring mutation at position 35 in AV2 that changes the codon TGG to TAG. Followed analysis revealed that this mutation did not significantly impact SLCCNV infectivity and transmission under both ambient and high temperatures. Next, we changed the start codon of AV2 to stop codon. While the mutation of start codon did not impact SLCCNV infection under ambient temperature, under high temperatures mutant SLCCNV displayed decreased infectivity. We then examined the underpinnings of AV2 function, and found that AV2 cannot compensate for the function of other viral genes and its expression relative to other viral genes was not induced at high temperature. Moreover, protein encoded by AV2 suppressed posttranscriptional gene silencing under both ambient and high temperatures. Our study unravels a novel function of viral factors in the regulation of begomovirus infection under high temperature, and sheds new lights on virus adaptation to abiotic stresses.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"287-299"},"PeriodicalIF":2.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13243910/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The F-box Containing Bacterial Effector RipG6 Destabilizes a Receptor-Like Cytoplasmic Kinase Involved in Plant Immune Signaling. 含有细菌效应物RipG6的F-box破坏了参与植物免疫信号传导的受体样细胞质激酶的稳定性。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-06-01 Epub Date: 2026-04-22 DOI: 10.5423/PPJ.OA.03.2026.0024

Hyelim Jeon, Jihyun Choi, Nawon Song, Wanhui Kim, Cécile Segonzac

{"title":"The F-box Containing Bacterial Effector RipG6 Destabilizes a Receptor-Like Cytoplasmic Kinase Involved in Plant Immune Signaling.","authors":"Hyelim Jeon, Jihyun Choi, Nawon Song, Wanhui Kim, Cécile Segonzac","doi":"10.5423/PPJ.OA.03.2026.0024","DOIUrl":"10.5423/PPJ.OA.03.2026.0024","url":null,"abstract":"Bacterial pathogens employ a large array of type IIIsecreted effectors to manipulate host cell immunity and metabolism. Ralstonia solanacearum species complex, the causal agent of bacterial wilt disease in numerous plant hosts, deploy a conserved subset of RipG effectors containing leucine-rich repeats and an F-box motif that collectively contribute to virulence and host specificity. RipG effectors are proposed to hijack the eukaryotic ubiquitin-proteasome machinery through the recruitment of substrates to host Skp1-cullin-F-box ubiquitinligase complexes via RipG F-box/host Skp1 adaptor interactions. However, only few host proteins have been reported to interact with RipG effectors. Here, using a surrogate type III delivery and a heterologous expression systems, we show that RipG6 can suppress plant pattern-triggered immunity in an F-box-dependent manner. We further identified a tomato receptor-like cytoplasmic kinase (SlRLCK-VIII-6) as an interactor of RipG6 in yeast and plant cells. SlRLCK-VIII-6 stability was reduced when co-expressed with RipG6 but not with the RipG6 variant lacking the F-box motif. Lastly, we provide evidence that Nicotiana benthamiana and Arabidopsis thaliana homologs of SlRLCK-VIII-6 can act as positive regulators of plant immune signaling. Together, our work supports a model where RipG6 destabilizes RLCK-VIII-6 possibly via its recruitment in a host ubiquitin-ligase complex in order to suppress plant immunity. Further research into RLCK-VIII role will enhance our understanding of the manipulation of plant immunity signaling by pathogen effectors.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"300-311"},"PeriodicalIF":2.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13243912/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147778420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Control of Pepper Anthracnose through Co-Application of Paenibacillus polymyxa GYUN-2285 and Pseudomonas protegens GYUN-2679. 多粘类芽孢杆菌gun -2285和假单胞菌gun -2679联合应用对辣椒炭疽病的防治作用

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-06-01 DOI: 10.5423/PPJ.OA.03.2026.0040

Rosa Jang, Heejin Kim, Jungyeon Kim, Yongho Jeon

{"title":"Enhanced Control of Pepper Anthracnose through Co-Application of Paenibacillus polymyxa GYUN-2285 and Pseudomonas protegens GYUN-2679.","authors":"Rosa Jang, Heejin Kim, Jungyeon Kim, Yongho Jeon","doi":"10.5423/PPJ.OA.03.2026.0040","DOIUrl":"10.5423/PPJ.OA.03.2026.0040","url":null,"abstract":"Anthracnose disease caused by Colletotrichum species is one of the most economically important, frequently leading to substantial yield and quality losses. This study investigated the biocontrol potential of two rhizosphere-associated bacteria, Paenibacillus polymyxa GYUN-2285 and Pseudomonas protegens GYUN-2679 isolated from soil. GYUN-2285 and GYUN-2679 were evaluated separately, and the two strains were subsequently co-applied to examine whether their combined treatment improved pathogen suppression relative to individual applications. Dual culture assays showed that both strains inhibited a broad range of plant pathogenic fungi, including several Colletotrichum species. The combined application of the two strains significantly promoted plant growth, enhancing seedling vigor and development. In planta experiments on pepper fruits revealed that individual applications GYUN-2285 and GYUN-2679 significantly reduced disease serverity. Notably, the combined treatment showed greater numerical suppression than the individual treatments under the tested conditions. This improved performance may be associated with the complementary functional traits of the two bacteria, which may broaden their antagonistic activity against pathogens. These findings suggest that the integration of GYUN-2285 and GYUN-2679 into biocontrol strategies offers a promising, sustainable, and eco-friendly alternative for managing anthracnose in peppers.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":"42 3","pages":"336-345"},"PeriodicalIF":2.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13243907/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148199661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Analysis of Quorum Sensing-Dependent Transcriptomic Responses in Phytopathogenic Burkholderia spp. 植物致病性伯克氏菌群体感应依赖性转录组反应的比较分析。

IF 2.6 3区农林科学

Plant Pathology Journal Pub Date : 2026-06-01 Epub Date: 2026-04-15 DOI: 10.5423/PPJ.FT.03.2026.0038

Minhee Kang, Hyejung Jung, Duyoung Lee, HaJin Seo, Jungwook Park, Young-Su Seo

{"title":"Comparative Analysis of Quorum Sensing-Dependent Transcriptomic Responses in Phytopathogenic Burkholderia spp.","authors":"Minhee Kang, Hyejung Jung, Duyoung Lee, HaJin Seo, Jungwook Park, Young-Su Seo","doi":"10.5423/PPJ.FT.03.2026.0038","DOIUrl":"10.5423/PPJ.FT.03.2026.0038","url":null,"abstract":"Rice is a crucial global crop of nutritional and economic importance. Burkholderia glumae, Burkholderia gladioli, and Burkholderia plantarii are the major phytopathogens that cause diseases in rice within the genus Burkholderia. These phytopathogenic Burkholderia spp. have an acylated homoserine lactone (AHL)-based quorum sensing (QS) system that regulates gene expression depending on the cell density. Differentially expressed genes (DEGs) between B. plantarii KACC 18965 wildtype and plaI deletion mutant were analyzed to understand the plaI-mediated QS system in B. plantarii, and transcriptome profiles were compared across three phytopathogenic Burkholderia spp. (B. glumae, B. gladioli, and B. plantarii) to investigate the impact of QS on their pathogenicity. Clusters of Orthologous Groups category and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses confirmed that diverse metabolic processes were regulated by QS in the three phytopathogenic Burkholderia spp. Additionally, characteristic differences in the regulation of gene expression across the three phytopathogenic Burkholderia spp. were observed in DEGs belonging to the bacterial secretion system (ko03070) pathway, using KEGG pathway analysis. The characterization and comparison of transcriptome profiles between phytopathogenic Burkholderia spp. in this study offers deeper insights into AHL-mediated QS systems in phytopathogenic Burkholderia spp. These results provide a foundation for future studies on the QS-based biology and pathogenicity of phytopathogenic Burkholderia spp.","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"322-335"},"PeriodicalIF":2.6,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13243905/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147691462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0