Journal of Phytopathology最新文献

{"title":"Customised Convolutional Neural Network With Transfer Learning for Multi-Nutrient Deficiency Identification With Pattern and Deep Features in Paddy Image","authors":"S Kavitha,&nbsp;Kotadi Chinnaiah","doi":"10.1111/jph.70014","DOIUrl":"https://doi.org/10.1111/jph.70014","url":null,"abstract":"<div>\u0000 \u0000 <p>Multi-nutrient deficiency in crops, involving a shortage of essential nutrients such as nitrogen, phosphorus and potassium, impacts plant growing and yield. Accurate recognition is vital for effective nutrient management and maximising productivity. Identification techniques include extractive methods that analyse symptoms and abstractive methods that generate insights from data, with hybrid approaches aiming to improve the accuracy. However, challenges remain in maintaining diagnostic consistency and so forth. Continuous improvements are necessary to better integrate and interpret complex data for more accurate nutrient deficiency identification. To tackle these challenges, this research proposes the customised convolutional neural network-transfer learning (CCNN-TL) model for identifying multi-nutrient deficiencies in paddy leaves. This model includes several key phases: image preprocessing, segmentation, feature extraction, data augmentation and identification. Initially, the paddy leaf images undergo preprocessing using the improved Wiener filtering (IWF) technique. Next, the modified U-Net model is proposed for segmenting the preprocessed images. In the feature extraction phase, relevant features are identified from the segmented images. These features are then augmented through the data augmentation process. Finally, the CCNN-TL model is used for multi-nutrient deficiency identification. The model's effectiveness is demonstrated through comprehensive simulations and experimental evaluations. These evaluations showcase its enhanced performance, with improved accuracy, precision and specificity compared to traditional methods. The CCNN-TL scheme attained the greatest accuracy of 0.982, precision of 0.975 and F-measure of 0.973. The Nutrient-Deficiency-Symptoms-in-Rice dataset was employed for simulations and analysis, ensuring a solid foundation for the evaluations.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115333","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":"Pseudomonas viridiflava Causing Leaf Spot of Common Mallow in Iran","authors":"Seyed Zaman Hosseini,&nbsp;Pejman Khodaygan,&nbsp;Luisa Ghelardini,&nbsp;Srđan G. Aćimović,&nbsp;Esmaeil Basavand","doi":"10.1111/jph.70009","DOIUrl":"https://doi.org/10.1111/jph.70009","url":null,"abstract":"<div>\u0000 \u0000 <p>In the spring 2018, a leaf disease including light and necrotic spots with irregular edges surrounded by chlorotic halos was detected on common mallow in Jiroft County (Kerman Province, Iran). A bacterium-forming cream-coloured and mucoid colonies on King's B agar medium was consistently isolated and was fitting of the traits of the genus <i>Pseudomonas</i>. Isolated strains caused spots on common mallow leaves in the pathogenicity test that was identical to natural field symptoms and belonged to <i>Pseudomonas viridiflava</i> based on phenotypic characteristics including LOPAT tests. Two representative isolates were further confirmed as <i>P. viridiflava</i> with 99% sequence identity after sequencing the 16S rRNA and <i>gyrB</i> genes. To our knowledge, this is the first report of <i>P. viridiflava</i> causing leaf spot disease on common mallow in Iran.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114479","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":"Fusarium spp. Associated With Leaf Blight of Hosta (Hosta plantaginea L.) in China","authors":"Chenyang Jiao,&nbsp;Li Zhang,&nbsp;Xi Xu,&nbsp;Xilang Yang,&nbsp;Lifeng Guo,&nbsp;Xiangjing Wang,&nbsp;Wensheng Xiang,&nbsp;Junwei Zhao","doi":"10.1111/jph.70010","DOIUrl":"https://doi.org/10.1111/jph.70010","url":null,"abstract":"<div>\u0000 \u0000 <p>Hosta (<i>Hosta plantaginea</i> L.) is a perennial herbaceous plant belonging to the family Liliaceae. It is widely cultivated for its decorative foliage and dainty, colourful flowers. <i>Fusarium</i> is a globally prevalent plant pathogen. During 2020–2021, 116 <i>Fusarium</i> isolates were isolated from 300 hosta leaf blight samples collected from eight cities in China, and 65 representative isolates we selected for further study. The 65 isolates were identified based on the concatenated sequences of the <i>tef1</i> and <i>rpb2</i> genes, which grouped them into 12 <i>Fusarium</i> species, including <i>F. acuminatum</i> (27.59%), <i>F. verticillioides</i> (15.52%), <i>F. oxysporum</i> (10.34%), <i>F. armeniacum</i> (10.34%), <i>F. ipomoeae</i> (8.62%), <i>F. proliferatum</i> (6.9%), <i>F. subglutinans</i> (6.9%), <i>F. humuli</i> (3.45%), <i>F. petersiae</i> (3.45%), <i>F. brachygibbosum</i> (3.45%), <i>F. graminearum</i> (1.72%), and <i>F. compactum</i> (1.72%). Pathogenicity tests demonstrated that all <i>Fusarium</i> isolates exhibited high pathogenicity towards hosta leaves. Whereas in <i>F. proliferatum</i> isolates were found to be the most pathogenic. All <i>Fusarium</i> species obtained in this study are first reported as the causal agents of hosta leaf blight in China except <i>F. oxysporum</i> and <i>F. ipomoeae</i>. The current research offers insights into disease management, phylogenetic relationships amongst <i>Fusarium</i> species and the diversity of <i>Fusarium</i> species associated with hosta leaf blight.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114480","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":"Pathogenicity of Curvularia geniculata Causing Ear Rot in Foxtail Millet (Setaria italica) in China","authors":"Kangning Zhu,&nbsp;Jing Xu,&nbsp;Yulin Diao,&nbsp;Guoqiu Chen,&nbsp;Wenfei Zhang,&nbsp;Kaixi Wang,&nbsp;Meng Zhang,&nbsp;Shuang Dou,&nbsp;Xin Sun,&nbsp;Qian Li,&nbsp;Hongyang Li,&nbsp;Xiaofei Sun,&nbsp;Haijin Zhang","doi":"10.1111/jph.70021","DOIUrl":"https://doi.org/10.1111/jph.70021","url":null,"abstract":"<div>\u0000 \u0000 <p>Foxtail millet (<i>Setaria italica</i>) an economically important crop globally, particularly in China. In 2021, a foxtail millet ear rot disease was first found in Chaoyang City, Liaoning Province, China. Symptomatic tissues were sampled, and the fungal isolate GZWB008 was identified as <i>Curvularia geniculata</i> based on morphological characteristics and ITS, GAPDH and RPB2 gene sequence analyses. Pathogenicity was confirmed by artificial inoculation, which produced symptoms consistent with those observed in the field. Koch's postulates were fulfilled by re-isolation of <i>C. geniculata</i> from inoculated symptomatic ears. This is the first report confirming <i>C. geniculata</i> as a causal agent of ear rot in foxtail millet, expanding knowledge of its host range and highlighting its potential threat to millet production.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113767","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":"Nigrospora Species Causing Leaf Disease on Camellia Plants","authors":"Linzhe Yan,&nbsp;Weihua Pan,&nbsp;Xudong Zhou","doi":"10.1111/jph.70020","DOIUrl":"https://doi.org/10.1111/jph.70020","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Camellia sinensis</i> and <i>C. japonica</i> plant leaves with spots were collected in Zhejiang Province, China. Three representative isolates resembling <i>Nigrospora</i> were selected for identification and pathogenicity test. Based on morphological characteristics and phylogenetic analyses of the partial regions of internal transcribed spacer (ITS), beta-tubulin (<i>TUB2</i>), and translation elongation factor 1-alpha (<i>TEF</i>) sequences, the isolates from <i>C. japonica</i> were identified as <i>Nigrospora. oryzae</i> and <i>N. philosophiae-doctoris</i>, while the one from <i>C. sinensis</i> as <i>N. camelliae-sinensis</i>. Inoculation of the isolates on healthy leaves showed symptoms similar to those observed in the field, and the fungi were reisolated from the lesions. To our knowledge, this represents the first report of leaf spot disease caused by <i>Nigrospora</i> species on <i>C. japonica</i> worldwide. The result further confirms that species residing the genus of <i>Nigrospora</i> act as causal agents of plant leaf spot disease, and their potential impact deserves further investigation.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113332","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":"Preliminary Study on Cell Wall-Degrading Enzymes and Host Resistance of Prunus davidiana Infected by Wilsonomyces carpophilus","authors":"Hailong Lu,&nbsp;Xinmei Zhou,&nbsp;Chuli Liu,&nbsp;Xiong Ma,&nbsp;Hongjin Chen,&nbsp;Caixia Wang,&nbsp;Rong Ma","doi":"10.1111/jph.70016","DOIUrl":"https://doi.org/10.1111/jph.70016","url":null,"abstract":"<div>\u0000 \u0000 <p>The <i>Prunus davidiana</i> (Carrière) Franch. is an important tree species in Northwest China. However, fungal perforation caused by <i>Wilsonomyces carpophilus</i> can harm a variety of stone fruits, such as <i>P. davidiana</i>, seriously affecting the protection of germplasm resources and the cultivation of stone fruit in economic forests. In this study, the main pathogenic factors and host resistance strategies were explored by detecting the main cell wall-degrading enzymes, the activities of the resistant enzymes and substances produced by the host when <i>W. carpophilus</i> infects <i>P. davidiana</i>. In the present study, the pathogenicity of <i>W. carpophilus</i> (CFCC 71543) was determined on <i>P. davidiana</i>. The changes of six cell wall-degrading enzymes, including carboxymethyl cellulase (Cx), β-glucosidase, polymethylgalacturonase (PMG), polygalacturonase (PG), polygalacturonate trans-eliminase (PGTE) and pectin methyl trans-eliminase (PMTE), produced by different strains when they invaded the host were determined using 3,5-dinitrosalicylic acid and ultraviolet colorimetry. Additionally, the changes in phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO), peroxidase (POD), superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), total phenol (TP), plant flavonoids, tannins and four other resistant substances were determined 2–16 days after inoculation. The results showed that the main cell wall-degrading enzyme of the strain (CFCC 71543) when infecting <i>P. davidiana</i> was PMG, with enzyme activity as high as 1548.456 U/g at 4 dpi, which was 3.988 times that of the control group. The level of five antioxidant enzymes and four resistant substances increased by varying degrees after infection by <i>W. carpophilus</i>. The main resistance enzyme of <i>P. davidiana</i> was POD, and POD activity reached 4184.889 U/g 8 days after inoculation, which was 4.074 times that of the control group. The main resistant substance was MDA, and the MDA content reached a peak of 217.63 nmol/g 8 days after inoculation, which was 2.376 times that in the control group. This is the first study to demonstrate that PMG is key in the infection of <i>P. davidiana</i> by <i>W. carpophilus</i>. The host produces five enzymes to resist infection by pathogenic bacteria, among which POD activity is the highest. Among the four resistant substances, MDA had strong resistance; the content of other resistant substances did not increase exponentially, and the resistance effect was not pronounced. These results provide a theoretical basis for an in-depth understanding of the pathogenic mechanism and are of great significance for the prevention and control of perforations.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113258","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":"Phenotypic Reaction of Cultivated and Wild Brinjal Genotypes to Fusarium Wilt Under Sick Plot and Artificially Inoculated Pot Conditions","authors":"Ananya P Kumar,&nbsp;J. K. Ranjan,&nbsp;B. S. Tomar,&nbsp;Suman Lata,&nbsp;Jogendra Singh,&nbsp;G. P. Mishra,&nbsp;Jameel Akhtar,&nbsp;Pradeep Kumar,&nbsp;Ritu Tiwari,&nbsp;Pragya Ranjan,&nbsp; Gayacharan","doi":"10.1111/jph.70018","DOIUrl":"https://doi.org/10.1111/jph.70018","url":null,"abstract":"<div>\u0000 \u0000 <p>Brinjal (<i>Solanum melongena</i> L.), an important solanaceous vegetable valued for its rich nutritional profile and potential health benefits, is widely cultivated in the tropical and subtropical regions of the world. Existing food and nutritional security concerns are exacerbated due to the rise in soil borne pathogens, a direct consequence of global warming, increasing the risk of crop diseases. Among these, Fusarium wilt, caused by multiple species of <i>Fusarium</i>, is very serious due to its severity and persistent nature. Traditional control measures, including cultural, biological and chemical approaches, have proven inadequate, highlighting the need for resistant cultivars. The current study focused on identifying fungal pathogen associated with brinjal wilt, by employing morpho-cultural identification, molecular characterisation by sequencing and DNA barcoding of internal transcribed spacer (ITS) and β-tubulin regions and pathogenicity assays of fungal isolate. <i>Fusarium oxysporum</i> f. sp. <i>melongenae</i> was identified as the pathogen associated with vascular wilt of brinjal. The study evaluated 90 diverse genotypes, including released varieties and local landraces of cultivated brinjal, and related wild <i>Solanum</i> sp. for resistance against Fusarium wilt by screening under field conditions. Confirmatory evaluation of disease reaction was done by screening under artificially inoculated conditions in pots. Percent disease incidence (PDI), area under disease progress curve (AUDPC) and area under disease progress stairs (AUDPS) were used to identify sources of resistance and understand disease progression patterns. Three genotypes namely Swarna Mani, <i>S. sisymbriifolium</i> and <i>S. torvum</i> were identified as highly resistant and seven genotypes namely G-17, Pink, CH-151, Sidhasar Local, Special Muktakeshi, H-183 and Pink Shiny Medium Long were found resistant to the disease under both field and pot conditions. Resistant genotypes exhibited distinct variations in disease progression patterns. The identified highly resistant and resistant genotypes hold significant potential for breeding programs aimed at enhancing crop resilience to the increasing threat posed by <i>Fusarium</i> species.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113052","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":"Damage Threshold and Population Dynamic of Meloidogyne javanica on Tomato Plant","authors":"El Mehdi Bouchtaoui,&nbsp;Abdelaziz Smouni,&nbsp;Abdelfattah A. Dababat,&nbsp;Fouad Mokrini","doi":"10.1111/jph.70015","DOIUrl":"https://doi.org/10.1111/jph.70015","url":null,"abstract":"<div>\u0000 \u0000 <p>The root-knot nematode <i>Meloidogyne javanica</i> is a significant pathogen that causes substantial yield losses in tomato plants. Moroccan farmers generally lack knowledge regarding the density of this pathogen, which can trigger visible and localised symptoms. Additionally, regional studies that establish damage thresholds for this issue are scarce. This study investigated the damage threshold of <i>M. javanica</i> on tomato plants using nine initial population densities (Pi) of second-stage juveniles (J2s): 0, 0.5, 1, 2, 4, 8, 16, 32 and 64 J2s (g dry soil)⁻¹. Aboveground growth (plant height and fresh and dry shoot weight) and belowground growth (root length and diameter) were assessed after 90 days. The plant growth parameters were significantly reduced at higher inoculum densities. The Seinhorst model fitting revealed the highest minimum relative yield (m) for shoot fresh weight (<i>m</i> = 0.761 ± 0.012) and the lowest for root diameter (<i>m</i> = 0.509 ± 0.026). The tolerance limit (<i>T</i>) varied, with the highest shoot dry weight (<i>T</i> = 1.657 ± 0.329 J2s (g soil)⁻¹) and lowest root diameter (<i>T</i> = 0.095 ± 0.019 J2s (g soil)⁻¹). The production of eggs by <i>M. javanica</i> increased significantly with increasing initial population density, rising from 211 ± 64 eggs (g roots)⁻¹ at 0.5 J2s (g soil)⁻¹ to 3735 ± 380 eggs (g roots)⁻¹ at 64 J2s (g soil)⁻¹, representing a 17.7-fold increase. Tomato plants exhibited the maximum galling index at lower nematode densities. Symptoms began at densities as low as 0.095 J2 (g soil)⁻¹, with severity increasing with nematode density. Given the severe damage caused at low densities, Moroccan farmers must adopt early detection and effective management strategies.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112775","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":"Genetic Analysis of the Bacterial Leaf Streak Pathogen Responsible for Severe Rice Infections in Senegal and Identification of Sources of Resistance","authors":"Akossan Bernadin Dossou,&nbsp;Daniel Foncéka,&nbsp;Hamidou Tall,&nbsp;Ndjido Ardo Kane,&nbsp;Omar Ndaw Faye,&nbsp;Yedomon Ange Bovys Zoclanclounon,&nbsp;Mathilde Hutin,&nbsp;Boris Szurek,&nbsp;Geoffrey Onaga,&nbsp;Baboucarr Manneh,&nbsp;Papa Madiallacké Diédhiou","doi":"10.1111/jph.70017","DOIUrl":"https://doi.org/10.1111/jph.70017","url":null,"abstract":"<div>\u0000 \u0000 <p>Bacterial leaf streak (BLS) caused by <i>Xanthomonas oryzae</i> pv. <i>oryzicola</i> (<i>Xoc</i>) is a major bacterial disease affecting rice, wheat, triticale and <i>Brassica</i> crops. It was recently confirmed in Senegal with high incidence in rice fields. However, the precise <i>Xoc</i> strains responsible for the recent outbreaks remains unknown, and the sources of resistance to the growing disease pressure have yet to be identified. In this study, we tested the pathogenicity of <i>Xoc</i> strains collected from a 2023 epidemic in Senegal on Senegalese rice varieties and on near isogenic lines (NILs) specifically developed for a sister pathovar, <i>Xanthomonas oryzae</i> pv. <i>oryzae</i> (<i>Xoo</i>). We identified both local varieties and NILs resistant to 80% of the strains. However, neither NILs nor local varieties were resistant to S52-4-4, suggesting a significant mutation in this particular strain that poses a serious threat to rice production in Senegal. Comparative genomic and phylogenetic analysis revealed a close evolutionary relationship between S52-4-4 and pathogenic strains BLS256 and CFBP2286 from the Philippines and Malaysia respectively. Moreover, the detection of an equivalent number of TAL effectors in both S52-4-4 and BLS256 provided further evidence that both strains have a shared common ancestry. These findings, together with the available genomic sequence and characterisation of S52-4-4 in this study are useful for studying <i>Xoc</i> populations in Senegal and other countries. Nonetheless, S52-4-4 adaptation to all local cultivars grown in Senegal requires a prompt management response.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112440","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 Pallidophorina paarla Causing Branch Cankers of Peach in México","authors":"Isabel Nativitas-Lima,&nbsp;Santos Gerardo Leyva-Mir,&nbsp;Graciela Dolores Avila-Quezada,&nbsp;Moisés Camacho-Tapia","doi":"10.1111/jph.70013","DOIUrl":"https://doi.org/10.1111/jph.70013","url":null,"abstract":"<div>\u0000 \u0000 <p>Branch cankers were detected on peach orchards in Puebla, Mexico. Based on morphology, cultural features and molecular analysis, the causal agent was identified as <i>Pallidophorina paarla</i>. Koch's postulates were fulfilled by pathogenicity tests carried out on peach trees. To our knowledge, this is the first report of <i>P. paarla</i> causing branch cankers of peach in Mexico.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"173 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112247","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}