Journal of Phytopathology最新文献

{"title":"First Report of Colletotrichum siamense Causing Leaf Anthracnose on Indigofera tinctoria in India","authors":"Arnab De,&nbsp;Goutam Mondal,&nbsp;Ankur Mukhopadhyay,&nbsp;Soumik Mukherjee,&nbsp;Dibyendu Ghosh,&nbsp;Pujan Mandal,&nbsp;Rabinath Murmu","doi":"10.1111/jph.70374","DOIUrl":"https://doi.org/10.1111/jph.70374","url":null,"abstract":"<div>\u0000 \u0000 <p>During November–January 2023–2024, severe anthracnose symptoms were observed on indigo (<i>Indigofera tinctoria</i>) plants in Kalyani, West Bengal, India, causing irregular necrotic lesions on leaves, pods and apical branches. A morphologically uniform fungal isolate (ITNK-4) was consistently recovered from symptomatic tissues. On Potato Dextrose Agar, colonies exhibited whitish-grey, woolly aerial mycelium with hyaline, smooth-walled, cylindrical conidia and melanised appressoria. Based on these morphological characteristics and a multilocus maximum-likelihood phylogenetic analysis of the internal transcribed spacer (<i>ITS</i>), beta-tubulin (<i>TUB2</i>) and glyceraldehyde-3-phosphate dehydrogenase (<i>GAPDH</i>) regions, the isolate was identified as <i>Colletotrichum siamense</i>. Pathogenicity was confirmed by artificially inoculating healthy <i>I. tinctoria</i> leaves with a 14-day-old fungal spore suspension, resulting in symptoms identical to those observed in the field, thereby fulfilling Koch's postulates. To our knowledge, this is the first molecularly confirmed report of <i>C. siamense</i> causing leaf anthracnose on <i>I. tinctoria</i> in India. Given the high economic value of <i>I. tinctoria</i> in natural dye production and traditional medicine, the emergence of this pathogen poses a newly characterised threat to its commercial cultivation and warrants further epidemiological monitoring.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stunt Nematode Found in Irrigated Lowland Rice Fields in North-Central Brazil","authors":"Flavia Fernandes R. Miranda,&nbsp;Juvenil Enrique Cares,&nbsp;Adalberto C. Café-Filho,&nbsp;Marcos Paz S. Câmara,&nbsp;Ana Gabriele Amaral,&nbsp;Leandro Cardoso Pinto,&nbsp;Luis Viteri Jumbo,&nbsp;Gil Rodrigues Santos","doi":"10.1111/jph.70370","DOIUrl":"https://doi.org/10.1111/jph.70370","url":null,"abstract":"<p>Brazil is a major global rice producer. Among the problems affecting the crop, nematodes cause significant damage, but studies on rice nematodes in the country are still considered insufficient. Commercial rice crops in lowland regions of rice-producing municipalities in the state of Tocantins, Brazil, were examined following reports of stunted plants with underdeveloped roots. Comparing the areas cultivated with irrigated rice, a reduction of 1050 kg/ha was observed, putatively due to nematode infestation. Nematodes were extracted from soil samples using the centrifugal flotation method with sugar, revealing the presence of a phytophagous species. The morphometry of adult females was carried out. Subsequently, species-level identification was performed through molecular analysis of the 28S sequences of the nematode populations PV962688 and PX206795. The sequences showed 100% identity with the <i>Tylenchorhynchus annulatus</i> sequences deposited in GenBank. The pathogenicity was confirmed experimentally, and 50 days after soil infestation, nematode specimens identical to <i>T. annulatus</i> were recovered from stunted and chlorotic plants in the infested pots. This is the first report of <i>T. annulatus</i> infecting roots of flood-irrigated rice in Brazil.</p>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jph.70370","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Viral Pathogens of Okra in Agroecosystems: Ecology, Disease Dynamics and Modern Diagnostic Strategies","authors":"Tashi Gautam,&nbsp;Harsh Patel,&nbsp;Sneha Patel,&nbsp;Jigisha Thakkar,&nbsp;Ashish Warghane","doi":"10.1111/jph.70364","DOIUrl":"https://doi.org/10.1111/jph.70364","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Abelmoschus esculentus</i> L. Moench, also known as okra, is an important nutritionally and economically valuable agricultural crop in the tropical and subtropical region. Globally, around 11,232,656 tons of okra production is carried out in 1,142,996 ha, with the productivity of 9.81 tons per hectare. However, this limited productivity occurs due to the major viral diseases infecting okra. These include begomoviruses such as <i>Okra yellow vein mosaic virus</i> (OYVMV), <i>Bhendi yellow vein mosaic virus</i> (BYVMV) and <i>Okra enation leaf curl virus</i> (OELCuV), which are spread by the whitefly <i>Bemisia tabaci</i>. In many cases, these infect in mixed combinations with the RNA virus <i>Cucumber mosaic virus</i> (CMV). The conventional methods like ELISA and symptom observation are found inadequate; however, approaches like PCR, quantitative PCR and next-generation sequencing offer great sensitivity, specificity and strain typing. Recombinase polymerase amplification (RPA) and loop-mediated isothermal amplification (LAMP), with the latest advancements in isothermal technologies, enable rapid and field-deployable diagnostics. The main defence measures include cultural practices like intercropping, field hygiene and timely planting, with vector control by biocontrol and insecticides being vital for the control of disease. The genetic approaches of RNA interference and CRISPR/Cas-mediated genome editing have great potential for long-lasting resistance. This review brings together existing understanding of the biology, diversity, diagnostics and okra viral disease management, focusing on recent advances in molecular and genomic research. Through the recognition of diagnostic needs, emphasizing integrated disease management models, diagnostic assays and delving into future trends in biotechnology, it emphasizes the necessity of sustainable, multifaceted approaches to counteract viral infection and protect okra production.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148616910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Wheat-Associated Rhizobacteria on Suppressing Common Root Rot in Wheat Caused by Bipolaris sorokiniana","authors":"Haniyeh Baniabdollah,&nbsp;Seyed Mohsen Taghavi,&nbsp;Maryam Mirtalebi","doi":"10.1111/jph.70350","DOIUrl":"https://doi.org/10.1111/jph.70350","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aimed to isolate plant growth-promoting rhizobacteria (PGPR) from Iranian wheat rhizospheres, identify promising antagonists and evaluate their capacity to antagonize <i>Bipolaris sorokiniana</i> and enhance wheat growth. Rhizosphere soils from wheat plants collected across multiple provinces yielded 640 bacterial isolates, which were screened in vitro using a dual-culture assay on PDA to quantify the inhibition of fungal growth. Seventeen strains showed significant antagonism (60%–~96% inhibition), and five superior strains (BAW2R35, GFW16R5, EW17R5, KBW9R1 and MFW14R3) were characterized by biochemical tests and 16S rRNA sequencing and evaluated in greenhouse assays on two cultivars (Azadi, Sirvan) using seed bacterization, with <i>B. sorokiniana</i> challenge. The selected strains were identified as <i>Bacillus</i> spp. (BAW2R35, GFW16R5, EW17R5), <i>Pseudomonas aeruginosa</i> (KBW9R1), and <i>Pseudomonas chlororaphis</i> (MFW14R3) exhibited multiple PGPR/antagonistic traits, including ammonia and siderophore production (all 17 strains), hydrogen cyanide production (<i>Pseudomonas</i> strains), nitrogen fixation, phosphate solubilization, antifungal metabolite activity and extracellular enzymes. In greenhouse experiments, growth promotion and disease suppression depended on the cultivar and strain: <i>P. chlororaphis</i> achieved the highest control efficacy in Sirvan (47%), whereas <i>Bacillus</i> sp. GFW16R5 was most effective in Azadi (43%). <i>P. chlororaphis</i> also induced the greatest increases in leaf antioxidant defences and soluble proteins, particularly under co-inoculation with the pathogen (SOD, POD, CAT and protein increases up to 13%, 22.19%, 28.43% and 25%, respectively). These findings indicate that native wheat rhizobacteria, particularly <i>P. chlororaphis</i> and selected <i>Bacillus</i> spp., can partially suppress common root rot while enhancing plant growth and host defence, supporting their development as components of environmentally friendly disease management strategies. However, field validation and consortium testing are still required.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148616487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Report of Ageratum Enation Virus and Its Associated DNA Satellites Infecting Matricaria chamomilla L., in India","authors":"Nilim Kumar Saikia,&nbsp;Mantesh Muttappagol,&nbsp;Arpita Talukdar,&nbsp;Twahira Begum,&nbsp;Mohan Lal,&nbsp;Shridhar Hiremath","doi":"10.1111/jph.70367","DOIUrl":"https://doi.org/10.1111/jph.70367","url":null,"abstract":"<div>\u0000 \u0000 <p>Begomoviruses continue to expand their ecological and host boundaries, posing a serious threat to high-value medicinal crops. This study presents the first report of <i>Begomovirus agerati</i> (Ageratum enation virus; AEV) infecting <i>Matricaria chamomilla</i> L. (German chamomile) in India. Field-collected plants exhibited typical begomovirus symptoms, including stunted growth, chlorosis and leaf deformation. Infection in chamomile plants was confirmed by PCR with begomovirus-specific primers, and rolling-circle amplification (RCA) was used to amplify the complete viral genome and associated DNA satellites. The complete genome and associated DNA satellites, <i>Colecusatellite agerati</i> (Ageratum enation alphasatellite; AEA) and <i>Betasatellite nicotianapatnaense</i> (tobacco leaf curl Patna betasatellite; TbLCPatB), exhibited the highest nucleotide identity with previously reported isolates of AEV and their corresponding DNA satellites. Phylogenetic analysis placed the chamomile-associated isolate NCM1 from Jorhat within the AEV clade. Recombination analysis further revealed that fragments of the NCM1 genome were derived from AEV and <i>Begomovirus nicotianae</i> (tobacco curly shoot virus; TbCSV) isolates previously reported from China. This study provides the first evidence of AEV infecting <i>M. chamomilla</i> L., highlighting the expanding host range and genomic diversity of begomoviruses in medicinal plants. These findings underscore the need for strengthened surveillance and effective virus-management strategies in medicinal plant cultivation.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrative Taxonomy Reveals the First Record of Diaporthe manihotia in Russia and Resolves the Status of Diaporthe betae Within the D. manihotia Species Complex","authors":"Maria M. Gomzhina,&nbsp;Elena L. Gasich","doi":"10.1111/jph.70363","DOIUrl":"https://doi.org/10.1111/jph.70363","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Diaporthe</i> comprises widespread, economically significant fungi associated with diverse plant hosts. The genus exhibits overestimated species diversity, with numerous new taxa described annually. Recently, an integrative approach combining multilocus phylogeny with Genealogical Concordance Phylogenetic Species Recognition (GCPSR), phylogenetic network analysis, and coalescent-based methods (PTP, mPTP) has been adopted for reliable species delimitation in <i>Diaporthe</i>. This study applied such approach to identify three <i>Diaporthe</i> strains isolated from <i>Chenopodium album</i> in the Russian Far East (Amur region) in 2023. Multilocus phylogenetic analysis of ITS, <i>cal</i>, <i>his3</i>, <i>tef1</i> and <i>tub2</i> placed the strains within a well-supported clade corresponding to <i>Diaporthe betae</i> in the <i>Diaporthe ganjae</i> species complex. Integrative analysis reliably identified the strains as members of this complex. Furthermore <i>D. betae</i> was found to be redundantly described and conspecific with other species in this complex. Taxonomic re-evaluation revealed that the name <i>D. ganjae</i> was erroneously prioritized for this complex. According to the International Code of Nomenclature for algae, fungi, and plants, the correct priority name is <i>D. manihotia</i>. Consequently, our strains were reliably identified as <i>D. manihotia</i>. Accordingly, we propose synonymization of <i>D. betae</i>, <i>D. compacta</i>, <i>D. ganjae</i>, and <i>D. sambucusii</i> under <i>D. manihotia</i>. This study provides the first report of <i>D. manihotia</i> in Russia and the first record of <i>C. album</i> as a host for this species.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Vivo Assessment of the Effect of Captan on Xiphinema index","authors":"Emmanuel A. Tzortzakakis","doi":"10.1111/jph.70368","DOIUrl":"https://doi.org/10.1111/jph.70368","url":null,"abstract":"<div>\u0000 \u0000 <p>Captan 80WG at a concentration of 24 ppm (captan a.i.) impaired the motility of the dagger nematode <i>Xiphinema index</i>, in in vitro assessment. Its efficacy was further assessed in vivo in 100-mL plastic cups planted with fig seedlings in fine sand. A single application of captan at the dosage of 3000 g/ha had a suppressive effect on <i>X. index</i> comparable to that of the nematicide oxamyl (Vydate 10 L) at the same a.i. application dosage. However, in two further experiments, a single application of captan was ineffective, while a double application at 2 weeks apart reduced significantly the nematode population and its efficacy was equal or better to that of oxamyl. Both chemicals at two applications rates were tested against <i>Meloidogyne incognita</i> on the fig seedlings and only oxamyl was effective in reducing nematode populations. This indicates a potential activity of captan on the ectoparasitic nematode <i>X. index</i> but not on the endoparasitic sedentary nematode <i>M. incognita</i>. This finding stimulates the further investigation of other pesticides, against plant parasitic nematodes.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Report of Citrus Leaf Blotch Virus in Tetradium ruticarpum in China","authors":"Bao Shi,&nbsp;Luqian Tai,&nbsp;Liming Huang,&nbsp;Liu Yang,&nbsp;Shuo Li,&nbsp;Feng Sun,&nbsp;Yinghua Ji","doi":"10.1111/jph.70365","DOIUrl":"https://doi.org/10.1111/jph.70365","url":null,"abstract":"<div>\u0000 \u0000 <p>In May 2025, <i>Tetradium ruticarpum</i> plants exhibiting mottled and chlorotic leaves were collected from a community garden in Nanjing, Jiangsu Province, China, with an incidence rate of approximately 10%. Small RNA sequencing was performed on pooled samples to identify the potential viral pathogen. Analysis using the VirusDetect pipeline revealed contigs with high identity to citrus leaf blotch virus (CLBV) and grapevine line pattern virus (GLPV). The nearly complete genome sequence of the CLBV Jiangsu isolate (CLBV-JS) was subsequently obtained through RT-PCR and Sanger sequencing. The CLBV-JS genome (GenBank: PX511708) comprises 8783 nucleotides. Phylogenetic analysis based on the replication polyprotein nucleotide sequences showed that CLBV-JS clusters most closely with isolates from <i>Forsythia viridissima</i> in China (GenBank: OR766026) and <i>Viburnum lentago</i> in Korea (GenBank: OP751940), sharing 82.9% nucleotide identity with these isolates. Specific RT-PCR primers confirmed the presence of CLBV in all 10 samples, and GLPV in seven of them. To our knowledge, this is the first report of CLBV detected in <i>T. ruticarpum</i> samples with leaf mottle and chlorosis symptoms in China. These findings expand the known host range of CLBV and provide a foundation for managing viral diseases in this important medicinal plant.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking Stripe Rust (Puccinia striiformis f. sp. tritici) Resistance and Yield Potential in Ethiopian Bread Wheat (Triticum aestivum L.) Through Genome-Wide Association Analysis","authors":"Tefera Regasa,&nbsp;Geleta Dugassa,&nbsp;Mulusew Fikere,&nbsp;Bekele Geleta,&nbsp;Mulugeta Kebede","doi":"10.1111/jph.70356","DOIUrl":"https://doi.org/10.1111/jph.70356","url":null,"abstract":"<div>\u0000 \u0000 <p>Yellow rust caused by <i>Puccinia striiformis</i> f. sp. <i>tritici</i> (Pst) is a major threat to bread wheat production in Ethiopia, causing severe yield and quality losses. The emergence of new virulent races necessitates the identification of durable resistance sources and associated genomic regions for wheat improvement. This study aimed to characterise the genetic diversity of 184 bread wheat lines obtained from CIMMYT, ICARDA and EIAR/KARC nurseries and to identify genomic regions associated with stripe rust resistance. Multi-environment field trials were conducted across three Ethiopian wheat-growing locations (KARC, Meraro and SARC) over two years. Disease resistance and agronomic traits, including Area Under Disease Progress Curve (AUDPC), Average Coefficient of Infection (ACI), Head Infection (HI), Plant Height (PH), Grain Yield (GY) and Thousand Kernel Weight (TKW) were evaluated. Phenotypic analysis revealed substantial variation among genotypes, while GY and TKW showed strong environmental influence. Genotyping using DArTseq technology generated 39,375 high-quality Single Nucleotide Polymorphism (SNP) markers for genetic diversity and genome-wide association studies (GWAS). Principal/Component Analysis (PCA) demonstrated clear genetic variation among the wheat lines, with the first two components explaining 27.8% of the total variation and clustering genotypes into three distinct groups. GWAS using Mixed Linear Models (MLM) identified highly significant loci associated with stripe rust resistance on chromosomes 6B (709.5 Mb, <i>p</i> = 1.61 × 10⁻¹⁰, 29.58% variance explained), 5D (426.6 Mb, <i>p</i> = 7.25 × 10⁻¹⁰, 24.47%) and 5A (670.8 Mb, <i>p</i> = 2.21 × 10⁻¹⁰, 19.76%). Additional moderate effect loci were observed on chromosomes 3A, 1D, 7A and 6B, indicating the resistance is controlled by both major- and minor-effect quantitative loci (QTL). To biologically validate the GWAS signals, candidate genes within linkage disequilibrium intervals were functionally characterised using protein sequence-based analysis. Conserved motifs analysis identified proteins containing kinase-associated and leucine-rich repeat (LRR) domains involved in plant immune signalling and pathogen recognition. Several large multidomain proteins characteristic of receptor-like kinases (RLKs) and nucleotide-binding leucine-rich repeat (NLR) resistance proteins were prioritised as strong candidate genes. Overall, this integrative approach identified novel genomic regions and putative resistance-associated genes that can support marker-assisted breeding for developing durable stripe rust-resistant and high-yielding wheat varieties adapted to Ethiopia and similar agro-ecological regions.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating Grapevine (Vitis vinifera) Cultivar Resistance to Leaf Rust (Neophysopella meliosmae-myrianthae) in Indonesian Viticulture","authors":"Argawi Kandito,&nbsp;Dharend Lingga Wibisana,&nbsp;Puguh Bintang Pamungkas,&nbsp; Paiman","doi":"10.1111/jph.70351","DOIUrl":"https://doi.org/10.1111/jph.70351","url":null,"abstract":"<div>\u0000 \u0000 <p>Despite a 25% increase in Indonesia's grape yield over the past 5 years, the industry faces a critical threat from grapevine leaf rust (GLR) caused by <i>N. meliosmae-myrianthae</i>. GLR can induce yield losses exceeding 70% in tropical environments. This study evaluated host resistance across various <i>Vitis vinifera</i> cultivars by quantifying the latent period, pustule formation, and overall disease incidence. The results revealed distinct resistance profiles among the tested genotypes. The ‘Isabella’ cultivar exhibited high susceptibility, driving rapid disease onset with a short latent period. In contrast, ‘Ilaria’ and ‘Angelica’ demonstrated partial resistance, evidenced by a delayed latent period of 8 days. Most significantly, ‘Sansekerta’ and ‘GoZV’ consistently displayed superior resistance, recording the lowest pustule density, disease incidence, and area under the disease progress curve. These findings suggest that while susceptible varieties facilitate rapid polycyclic epidemics, the adoption of resistant cultivars such as ‘Sansekerta’ and ‘GoZV’ is a vital strategy for sustainable GLR management in tropical viticulture.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}