Plant Pathology Journal最新文献

{"title":"The Fusarium incarnatum-equiseti, F. tricinctum, and F. nisikadoi Species Complexes in Korea: Taxonomy, Species Diversity, and Host/Substrate Records.","authors":"Le Dinh Thao, Yunhee Choi, Jae Sung Lee, Daseul Lee, Anbazhagan Mageswari, Donghun Kang, In-Young Choi, Seung-Beom Hong","doi":"10.5423/PPJ.OA.08.2026.0115","DOIUrl":"https://doi.org/10.5423/PPJ.OA.08.2026.0115","url":null,"abstract":"<p><p>The Fusarium incarnatum-equiseti species complex (FIESC), F. tricinctum species complex (FTSC), and F. nisikadoi species complex (FNSC) comprise diverse and taxonomically challenging groups associated with a wide range of plant hosts and environmental substrates. However, their diversity and host/substrate associations in Korea remain insufficiently documented. In this study, we re-identified 60 Korean isolates belonging to these three species complexes based on multilocus sequence data, using the translation elongation factor 1-α (tef1), RNA polymerase II second-largest subunit (rpb2), and calmodulin (CaM) genes for the FIESC and tef1, RNA polymerase II largest subunit (rpb1), and rpb2 for the FTSC and FNSC. As a result, 19 species were recognized among the re-identified isolates, comprising 11 FIESC, six FTSC, and two FNSC species. Among these, Fusarium diversum sp. nov., a new species in the FIESC, is described, and 10 species are newly recorded from Korea. Together with previously published records, a total of 28 species are documented in Korea, including 15 FIESC, 10 FTSC, and three FNSC species. In total, 154 fungus-host/substrate associations were documented, involving plant hosts, a brown alga, air, and various environmental substrates, with the FTSC accounting for the highest numbers of documented associations and host taxa, followed by the FIESC and FNSC. Of these, 53 associations are newly documented for Korea, expanding the known ecological associations of these species. Our results improve the understanding of the species diversity and host/substrate associations of the three Fusarium species complexes in Korea and provide an updated taxonomic framework for future studies of their distribution and ecology.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149128373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Light-Dependent Production of Volatile Organic Compounds in Magnaporthe oryzae Mediates Self-Inhibition and Interspecific Antagonism.","authors":"Heeryoung An, Song Hee Lee, Myoungjoo Riu, Choong-Min Ryu, Yong-Soon Park, Junhyun Jeon","doi":"10.5423/PPJ.OA.05.2026.0070","DOIUrl":"10.5423/PPJ.OA.05.2026.0070","url":null,"abstract":"<p><p>Volatile organic compounds (VOCs) are valuable compounds in diverse microbial interactions with certain biotic stimuli, yet pivotal roles of any VOCs derived by the rice blast fungus, Magnaporthe oryzae, in intra- and interspecies communications have been poorly understood. Therefore, in this study, we investigated that how certain VOCs by M. oryzae affect the fungal growth of the same species and other species. Using a partitioned I-plate assays, the result showed that pre-inoculated fungal colony (sender) significantly suppressed the late arriving colony (receiver) in a time- and mediadependent manner, suggesting that VOCs may function as self-inhibition agents in regulation of fungal growth. A total of eleven compounds were identified by the gas chromatography-mass spectrometry, among which four VOCs (1-hexanol, 2-ethylhexanoyl chloride, 1-octen- 3-ol, and 3-octanol) exhibited strong self-inhibition effects. Further analysis revealed that the self-inhibition mediated by M. oryzae VOCs was enhanced under light conditions compared with darkness. Genetic approaches revealed that deletion of the MoCPKA and MoPMK1 genes reduced the self-inhibitory effects, suggesting that both genes are required for growth inhibition and that VOCs play a pivotal role in regulating turgor pressure generation and appressorium formation. In addition to self-inhibition effects, M. oryzae-mediated VOCs contributed to the interspecific antagonistic interactions with other fungal species (Aspergillus nidulans, Fusarium oxysporum f.sp. conglutinans, and Sclerotinia sclerotioum). Our data clearly demonstrated that VOCs produced by the M. oryzae under light conditions are the key factors in enhancing growth inhibition both within a species (intraspecific) and among different species (interspecific).</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"595-605"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655596/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148362084","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}

{"title":"Nationwide Survey Using Real-Time PCR in 2024 and 2025 Supports the Absence of Xylella fastidiosa in Korea.","authors":"In Woong Park, Yejin Park, Yong Ho Shin, Boyoung Kim, Byeongsam Kang, Myoungjoon Kim, Jiwon Lee, Minho Chung, Geonhui Cho, LeeSeul Kim, Sumin Jeon, Serim Lee, Jun Yub Lee, Jihui Hwang, Jun-Yeong Seo, Soobin Yang, Zar Zar Soe, Hyun Jin Sim, Boknam Jung, Su-Hyun Lee, Jeong-Eun Kim, Jonghyun Shin, Jae Hoon Lee, Yong-Chull Jeun, Chang-Sik Oh","doi":"10.5423/PPJ.OA.06.2026.0090","DOIUrl":"10.5423/PPJ.OA.06.2026.0090","url":null,"abstract":"<p><p>Xylella fastidiosa is a plant-pathogenic bacterium that causes severe diseases in economically important crops, such as citrus and grapevine, thereby posing a significant threat to global agriculture. Although X. fastidiosa has not yet been reported in Korea, the increase in international trade and its presence in neighboring countries highlight the necessity of continued surveillance. The objective of this study was to verify the absence of X. fastidiosa in Korea and to establish a reliable diagnostic framework through a nationwide survey conducted in 2024 and 2025. The sampling design was generated using the RiBESS+ statistical model to ensure the reliability of the survey results. Host plants, including grapevines (Vitis vinifera), mandarin oranges (Citrus unshiu), and cherry blossoms (Prunus yedoensis), were selected and sampled from urban and agricultural areas throughout the country for a nationwide survey. Genomic DNA was extracted from plant petioles and analyzed using real-time PCR with an optimized primer set (XF16S-F/R). Over a period of two years, a total of 2,314 samples were collected, exceeding the required sample size of 843 per year. X. fastidiosa was not detected in any of the collected and tested samples. These results confirm the absence of X. fastidiosa in Korea throughout the study period with high statistical confidence. This study provides evidence confirming the absence of X. fastidiosa in Korea and proposes a standardized methodology for future surveillance and early detection of other invasive prohibited quarantine pests.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"712-725"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655604/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148906849","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}

{"title":"Secondary Metabolites from the Marine-Derived Fungus Aspergillus udagawae SFC20170619-M03 Exhibiting Disease Control Activity.","authors":"Minh Van Nguyen, Jae Woo Han, Huisoo Cho, Myung Soo Park, Gyung Ja Choi, Hun Kim","doi":"10.5423/PPJ.OA.08.2026.0108","DOIUrl":"10.5423/PPJ.OA.08.2026.0108","url":null,"abstract":"<p><p>In our screening program for novel biocontrol agents, we found that the culture filtrate of the marine-derived fungus Aspergillus udagawae SFC20170619-M03 exhibited disease control activity against several fungal plant diseases, including tomato gray mold, tomato late blight, and pepper anthracnose. Bioassay-guided fractionation of the active extracts led to the isolation of sixteen secondary metabolites, comprising nine xanthones (1-9), three benzoquinones (10-12), three spirocyclic furanone lactams (13-15), and one polyene (16). Among these compounds, the xanthone derivative MS-347a (1), a principal bioactive metabolite of A. udagawae SFC20170619-M03, exhibited promising antifungal and antibacterial activities, with minimum inhibitory concentrations ranging from 3.2 to 100 μg/mL. In planta assays further demonstrated that MS-347a (1) effectively suppressed tomato gray mold, tomato late blight, and pepper anthracnose, with control efficacies from 55% to 94% at a concentration of 62.5 μg/mL. The nonepoxidized xanthone AGI-B4 (7) exhibited potent and selective anti-oomycete activity against Phytophthora infestans, with a control efficacy of 91% against tomato late blight at 500 μg/mL. The benzoquinone derivative fumigatin (10) exhibited relatively weaker but broaderspectrum antimicrobial activity in vitro and provided moderate suppression of tomato gray mold in vivo. Taken together, these findings suggest that A. udagawae SFC20170619-M03 and its bioactive metabolites represent promising resources for the development of environmentally sustainable biocontrol agents for agricultural applications.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":"42 5","pages":"726-737"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655606/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149168683","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}

{"title":"Whole-Genome Analysis Reveals Biosynthetic Potential and Antifungal Activity of Nakaseomyces kungkrabaensis BRKS1-2 Isolated from Boesenbergia rotunda Rhizome.","authors":"Praphat Kawicha, Rungphailin Wanlanon, Rujisaya Pontri, Anitta Kongsuk, Kusavadee Sangdee, Khanitta Somtrakoon, Thanwanit Thanyasiriwat, Juthaporn Saengprajak, Aphidech Sangdee","doi":"10.5423/PPJ.OA.07.2026.0097","DOIUrl":"10.5423/PPJ.OA.07.2026.0097","url":null,"abstract":"<p><p>Yeasts associated with medicinal-plant tissues are potential sources of antifungal compounds for plant disease management. Microorganisms isolated from surface-sterilised rhizomes of Boesenbergia rotunda and Alpinia galanga were screened against Fusarium oxysporum f. sp. lycopersici (Fol), F. oxysporum f. sp. cubense (Foc), and Sclerotium rolfsii. In dual-culture assays, BRKS1-2 showed the highest mean inhibition across pathogens (35.5%; P < 0.001), including 42.2 ± 5.3% against Foc and 39.0 ± 0.9% against S. rolfsii, and was the only isolate active against S. rolfsii. Cell-free culture filtrates collected after 24-72 h inhibited all pathogens, with activity increasing over time (P < 0.001). ITS and LSU rRNA phylogenies placed BRKS1-2 within Nakaseomyces, although ITS did not resolve species identity. Whole-genome sequencing produced an 11.5-Mb draft assembly (37.2% GC) at 185.8× mean mapped depth, with 99.90% of filtered reads mapped. Genome-wide comparison showed 98.3% average nucleotide identity with the N. kungkrabaensis reference, supporting identification as N. kungkrabaensis. Gene prediction identified 5,112 protein-coding genes, 222 tRNA genes, and five rRNA genes. LC-MS/MS detected 74 fungal protein groups, mainly associated with central metabolism and stress responses. Fungal-mode antiSMASH predicted four terpene-related clusters and one putative beta-lactone cluster; all abutted contig boundaries and were therefore partial. These findings demonstrate the in vitro antifungal activity of BRKS1-2 and identify candidate biosynthetic loci for investigating the responsible compounds.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":"42 5","pages":"738-753"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655602/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149168844","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}

{"title":"Functional Characterization of Wheat Seed Endophytic Bacteria Reveals Plant Growth-Promoting Traits and Potential Biocontrol Activity Against Fusarium Pathogens.","authors":"Nazish Roy, Eunji Hong, Youn-Sig Kwak, Eui-Hwan Chung, Jin Hwan Lee, Jeong-Seon Kim, Kihyuck Choi","doi":"10.5423/PPJ.OA.06.2026.0083","DOIUrl":"10.5423/PPJ.OA.06.2026.0083","url":null,"abstract":"<p><p>Seed-associated microbiota are emerging as key determinants of early plant establishment and resilience, yet their functional potential in wheat remains underexplored. Here, we isolated and functionally characterized culturable bacterial endophytes from seeds of Triticum aestivum cvs. Saekeumkang, Baeggang, and Ariheuk to assess plant growth promotion and pathogen suppression. Sixteen bacterial strains, belonging to Pseudomonadota, Actinomycetota, and Bacillota, were identified using 16S rRNA gene sequencing. Functional assays revealed the high prevalence of plant growth-promoting traits, with all isolates producing indole-3-acetic acid and 56.25% exhibiting phosphate-solubilizing activity, whereas siderophore production was restricted to Pseudomonas poae WSSR12. Despite this apparent functional redundancy, in planta assays demonstrated strong strain-specific effects on seedling biomass. Neobacillus cucumis WSSR17 consistently induced the highest increase in fresh weight. In parallel, dual culture assays against multiple Fusarium pathogens revealed that only one isolate, Calidifontibacillus erzurumensis WSSR11, showed consistent antifungal activity across all tested Fusarium strains. Notably, isolates combining multiple functional traits did not always correspond to the strongest growth promotion, underscoring the importance of host-microbe compatibility and trait expression in planta. Collectively, these findings reveal a functionally diverse seed endophytic community with complementary roles in plant growth and disease suppression. We propose that rational selection and combination of complementary strains, particularly N. cucumis WSSR17 (growth promotion), C. erzurumensis WSSR11 (biocontrol), and P. poae WSSR12 (multifunctional nutrient mobilization) could enable the development of targeted, multi-strain bioinoculant strategies for wheat. This study advances our understanding of seed microbiome functionality and provides a foundation for microbiome-informed crop improvement.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"686-697"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655595/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148808949","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}

{"title":"Host-Associated Distribution and Mycological Characteristics of Fusarium sambucinum Species Complex and Other Fusarium Species in Rice, Maize, and Weeds in Korea.","authors":"Eunji Jeong, Jeong-Ah Seo","doi":"10.5423/PPJ.OA.05.2026.0071","DOIUrl":"10.5423/PPJ.OA.05.2026.0071","url":null,"abstract":"<p><p>Fusarium asiaticum and Fusarium graminearum, belonging to the Fusarium sambucinum species complex (FSAMSC), are primary causal agents of Fusarium head blight (FHB) and associated mycotoxin contamination in cereal crops worldwide. In this study, we performed a nationwide survey of Fusarium populations in rice, a staple crop in Korea, and examined the distribution of trichothecene genotypes and the mycological characteristics of dominant species. A total of 1,008 Fusarium isolates were obtained from rice (375) and plants surrounding rice paddy fields, including maize (133) and gramineous weeds (500). FSAMSC members accounted for the majority (59-70%) of Fusarium isolates from the three plants, with F. asiaticum predominating in both rice (57%) and weeds (44%), whereas F. graminearum was dominant in maize (41%). Trichothecene genotype analysis revealed that the nivalenol (NIV) type of F. asiaticum predominated in rice (82%) and weeds (70%), whereas the 15-acetyldeoxynivalenol (15ADON) type of F. graminearum was more common in maize (83%). A comparison of the mycological traits of two dominant species highlighted that F. asiaticum NIV type strains exhibited significantly higher pathogenicity in rice than F. graminearum 15ADON type strains (P = 0.01), despite lower growth and reproductive capacity (P < 0.05). By integrating this largescale distribution survey with mycological analyses, we showed that F. asiaticum is a major contributor to FHB and trichothecene risks in the rice cultivation system in Korea.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"606-616"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655601/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148702077","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}

{"title":"Prevalence of Quinone Outside Inhibitor Fungicide Resistance and Dynamics of Cytochrome b Genotypes Under Different Fungicide Selection Pressure in Botrytis cinerea Isolates from Korean Strawberry Farms.","authors":"Hyeong-Rok Jang, Haifeng Liu, Doeun Son, Sungyu Choi, Soyoon Park, Hyeon-Gyeong Lee, Young-Ju Nam, Hyunkyu Sang","doi":"10.5423/PPJ.OA.04.2026.0063","DOIUrl":"10.5423/PPJ.OA.04.2026.0063","url":null,"abstract":"<p><p>Botrytis cinerea, the causal agent of gray mold, is a major pathogen in strawberry production. Quinone outside inhibitor (QoI) fungicides have been widely used for disease control, but resistance driven by the G143A mutation in cytochrome b (cytb) has limited their field efficacy. This study evaluated the sensitivity of 229 B. cinerea isolates collected from farms in major Korean strawberry-growing regions during 2022-2024 to the QoI fungicide pyraclostrobin. The EC50 values for pyraclostrobin ranged from 0.10 to 329.21 μg mL-1. In total, 86.46% of the population showed resistance to pyraclostrobin, harboring the G143A mutation in cytb. In planta and greenhouse assays confirmed that pyraclostrobin failed to control the QoI-resistant isolates. Furthermore, strong cross-resistance to pyraclostrobin, mandestrobin, and pyribencarb indicates that QoI-resistant populations substantially limit the field efficacy of QoI fungicides. To assess how the QoI resistance mutation affects selection under non-QoI fungicide pressure, mixed QoI-sensitive and -resistant isolates were treated with alternative fungicides. Allele-specific qPCR revealed that pydiflumetofen, fludioxonil, and fluxapyroxad maintained a higher proportion of the QoI-sensitive genotype at all concentrations, whereas pyraclostrobin consistently favored the resistant genotype. These findings indicated that QoI fungicides impose strong selection pressure promoting resistant B. cinerea populations, while non-QoI fungicides help maintain sensitive individuals. Our study suggests the need for fungicide class rotation and the targeted use of non-QoI fungicides to delay QoI resistance development and preserve the efficacy of gray mold management in strawberry production.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":" ","pages":"673-685"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655600/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148813519","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}

{"title":"Pathogen-Induced Cell Wall Remodeling and Immune Signaling in Plants.","authors":"Dawon Jeon, Seong-Hyeon Bae, TaeHyun Kim, Gah-Hyun Lim","doi":"10.5423/PPJ.RW.07.2026.0102","DOIUrl":"10.5423/PPJ.RW.07.2026.0102","url":null,"abstract":"<p><p>The plant cell wall is a primary barrier to pathogen invasion and a dynamic extracellular interface involved in defense signaling. During infection, pathogens remodel the wall through cell wall-degrading enzymes and effectors, whereas plants reinforce the wall and perceive wall-derived damage-associated molecular patterns that activate immune responses. Recent studies have refined this view by challenging a simple wallassociated kinase-centered model of oligogalacturonide perception, linking MIK2-associated peptide-receptor pathways to pattern-triggered immunity, and showing that pathogens can chemically modify wall-derived fragments to alter their elicitor activity. In addition to chemical cues, pathogen-induced wall perturbation can also affect physical properties such as wall stiffness, porosity, membrane tension, and localized deformation, although how these inputs are integrated during infection remains incompletely understood. This review summarizes current understanding of pathogeninduced cell wall remodeling, wall-derived immune signaling, receptor-associated wall integrity pathways, and their implications for crop disease resistance. We highlight emerging connections among wall chemistry, wall mechanics, peptide signaling, hormone regulation, and growth-defense trade-offs as important directions for understanding wall-mediated immunity.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":"42 5","pages":"584-594"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655591/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149169928","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}

{"title":"Empathy in the Soil, Agents on the Desktop: Why Plant Pathology Needs a Scientist-in-the-Loop AI Paradigm.","authors":"Junhyun Jeon","doi":"10.5423/PPJ.OC.07.2026.0091","DOIUrl":"10.5423/PPJ.OC.07.2026.0091","url":null,"abstract":"<p><p>Plant pathology faces a cognitive bottleneck caused by the growing volume of biological data. Addressing it requires a shift from passive chatbots to autonomous AI research agents that operate in Goal-Action-State cycles. Researchers can set up a local, desktop-based agentic framework that combines semantic discovery, LLM-Wiki knowledge synthesis, and in silico prevalidation, managed under a human-directed three-tier organizational model. Strict \"Scientist-in-the-Loop\" boundaries, which means that a human researcher sets the goals, reviews AI-generated output before it is treated as evidence, and approves any consequential action, preserve human academic rigor and control, so plant pathologists can leave routine data processing to the system and focus on creative hypothesis design and physical validation.</p>","PeriodicalId":20173,"journal":{"name":"Plant Pathology Journal","volume":"42 5","pages":"555-559"},"PeriodicalIF":2.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170049","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}