Australasian Plant Pathology最新文献

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Exploring host plant resistance in Lathyrus sativus to yellow and wilt disease caused by Fusarium curvatum in Iran 伊朗弯镰刀菌黄萎病寄主植物抗性研究
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-19 DOI: 10.1007/s13313-026-01130-0
Hamid Reza Pouralibaba, Masoud Abrinbana, Mozhgan Tabrizivand Taheri
{"title":"Exploring host plant resistance in Lathyrus sativus to yellow and wilt disease caused by Fusarium curvatum in Iran","authors":"Hamid Reza Pouralibaba,&nbsp;Masoud Abrinbana,&nbsp;Mozhgan Tabrizivand Taheri","doi":"10.1007/s13313-026-01130-0","DOIUrl":"10.1007/s13313-026-01130-0","url":null,"abstract":"<div>\u0000 \u0000 <p>Grass pea (<i>L. sativus</i>), is a legume crop, primarily used for animal feed shows promise for the future due to its ability to adapt to climate change scenarios. Yellow and wilt disease caused by <i>Fusarium</i> spp. is one of the most significant diseases threatening the sustainable productivity of the crop globally. In May 2018, grass pea fields in the west and northwest of Iran were visited for yellow syndrome, and ten isolates were collected from each field. Representative isolates were selected based on colony characteristics, and through morphological and molecular techniques, the isolates were identified as <i>Fusarium curvatum</i>. These isolates were used to screen thirty advanced grass pea genotypes from the national grass pea breeding program in both glasshouse and semi-field conditions. The results showed that the interaction between isolates and genotypes was highly significant, indicating existing pathogenic differentiation, which can be interpreted as the existence of races in this pathosystem. Ten genotypes that showed resistance to both isolates of GP-1 and GP-7 in the glasshouse conditions were selected for the second round of screening in semi-field conditions. Based on mortality rate and infection type, five genotypes (accessions 6, 15, 21, 25, and 38) were identified as resistant and suitable for release as new varieties or to use in breeding programs as resistant sources.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560677","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}
引用次数: 0
Morphological traits and SSR-Based genetic diversity of Macrophomina isolates causing charcoal rot in sugar beet in Serbia 塞尔维亚甜菜炭疽菌分离株的形态特征和基于ssr的遗传多样性
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-19 DOI: 10.1007/s13313-026-01110-4
Aleksandra Stankov Petreš, Dragana Budakov, Vera Stojšin, Nevena Nagl, Tatjana Dudaš, Jelena Vukotić, Mladen Petreš
{"title":"Morphological traits and SSR-Based genetic diversity of Macrophomina isolates causing charcoal rot in sugar beet in Serbia","authors":"Aleksandra Stankov Petreš,&nbsp;Dragana Budakov,&nbsp;Vera Stojšin,&nbsp;Nevena Nagl,&nbsp;Tatjana Dudaš,&nbsp;Jelena Vukotić,&nbsp;Mladen Petreš","doi":"10.1007/s13313-026-01110-4","DOIUrl":"10.1007/s13313-026-01110-4","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Macrophomina</i> spp. are soil-borne phytopathogenic fungi within the division Ascomycota, known to cause significant yield losses in a wide range of crops, including sugar beet. In recent decades, root rot outbreaks associated with <i>Macrophomina</i> have increased in the Republic of Serbia, likely influenced by climate change and environmental stress. Despite this, there is limited information on the morphological and molecular characteristics of <i>Macrophomina</i> isolates from sugar beet. This study aimed to investigate the morphological and physiological variability of <i>Macrophomina</i> isolates, characterize them at the molecular level, and evaluate their genetic diversity using Simple Sequence Repeats (SSR) markers. The isolates of <i>Macrophomina</i> exhibit considerable phenotypic variation in colony morphology and chlorine sensitivity, suggesting inherent genetic diversity and potential differences in adaptation or survival under varying environmental conditions. Optimal growth occurred at 30–35 °C, with pH tolerance between 4.0 and 7.0. Genetic diversity assessed using SSR markers revealed a relatively low level of variation among isolates. Principal Coordinates Analysis (PCoA) indicated that a few isolates formed distinct genetic clusters, indicating a limited population structure. These findings are essential for the development of resistant sugar beet cultivars and informed disease management practices in regions increasingly affected by <i>Macrophomina</i> outbreaks.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560109","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}
引用次数: 0
The identification of a novel cereal-infecting luteovirus, cereal red leaf virus, and clarification of other yellow dwarf viruses present in the Northern grain region of Australia 鉴定了一种新的感染谷物的黄体病毒,谷物红叶病毒,并澄清了澳大利亚北部谷物区存在的其他黄矮病毒
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-19 DOI: 10.1007/s13313-026-01098-x
Kathleen S. Crew, Mohammad Abdullah Ahmed Al-Mashhadani, Mark Schwinghamer, Murray Sharman, John E. Thomas
{"title":"The identification of a novel cereal-infecting luteovirus, cereal red leaf virus, and clarification of other yellow dwarf viruses present in the Northern grain region of Australia","authors":"Kathleen S. Crew,&nbsp;Mohammad Abdullah Ahmed Al-Mashhadani,&nbsp;Mark Schwinghamer,&nbsp;Murray Sharman,&nbsp;John E. Thomas","doi":"10.1007/s13313-026-01098-x","DOIUrl":"10.1007/s13313-026-01098-x","url":null,"abstract":"<div><p>During a survey of oat and barley crops in northern New South Wales (NSW) and southern Queensland (Qld), a novel member of the genus <i>Luteovirus</i> (family <i>Tombusviridae</i>) causing leaf reddening and yellow dwarf symptoms in oats and barley was found in both States. A near-complete genome of the virus tentatively named cereal red leaf virus (CrRLV; tentative species name <i>Luteovirus foliarubra</i>) was obtained through high throughput sequencing. The virus was genomically distinct from, but reacted with antibodies to, barley yellow dwarf virus-MAV. CrRLV was transmitted by <i>Rhopalosiphon padi</i> but not by <i>R. maidis</i>. Barley yellow dwarf virus-PAV was found in both NSW and Qld on barley and oats. Additionally, barley virus G was found for the first time in Qld and NSW, on barley, barley yellow dwarf virus-PAS for the first time in Qld, on barley, cereal yellow dwarf virus-RPS for the first time in NSW, on oats, and cereal yellow dwarf virus-RPV was found in NSW on oats and barley and for the first time in Qld, on oats.</p></div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-026-01098-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560580","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}
引用次数: 0
Rapid on-site detection of cardamom bushy dwarf virus and large cardamom chirke virus using recombinase polymerase amplification coupled lateral flow assays 利用重组酶聚合酶扩增偶联侧流法快速现场检测豆蔻丛矮病毒和大豆蔻chirke病毒
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-19 DOI: 10.1007/s13313-026-01131-z
Pradeep Malavika, Alangar Ishwara Bhat, Malayathodi Greeshma
{"title":"Rapid on-site detection of cardamom bushy dwarf virus and large cardamom chirke virus using recombinase polymerase amplification coupled lateral flow assays","authors":"Pradeep Malavika,&nbsp;Alangar Ishwara Bhat,&nbsp;Malayathodi Greeshma","doi":"10.1007/s13313-026-01131-z","DOIUrl":"10.1007/s13313-026-01131-z","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Foorkey</i> and <i>chirke</i> are the two major viral diseases impacting large cardamom productivity, caused by cardamom bushy dwarf virus (CBDV), a DNA virus, and large cardamom chirke virus (LCCV), an RNA virus, respectively. Relying solely on visible symptoms for diagnosing these infections is unreliable, as infected plants may not always exhibit clear symptoms. Therefore, rapid, accurate, and sensitive detection methods are crucial for identifying and propagating virus-free plants. Conventional laboratory-based techniques such as polymerase chain reaction (PCR) and real-time PCR, while effective, are time-consuming and require specialized equipment. In contrast, isothermal methods like recombinase polymerase amplification (RPA) offer faster results without the need for advanced laboratory infrastructure and are well suited for onsite diagnostics, especially when combined with lateral flow assay (LFA). In this study, an RPA-LFA assay was developed for detecting CBDV and an RT-RPA-LFA assay for LCCV in large cardamom, using TwistAmp reagents, labeled primers, and crude extracts from infected plants. Optimization of the assay using 1 M betaine eliminated false positives by suppressing non-specific amplification. The optimized assays demonstrated either comparable (CBDV) or tenfold higher sensitivity (LCCV) than conventional PCR. The entire workflow could be completed within 35–45 min, making them suitable for large-scale indexing of planting material. Both assays were successfully validated using field-collected samples of large cardamom that included asymptomatic and mixed infections.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560581","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}
引用次数: 0
First report of Steneotarsonemus spinki Smiley (Trombidiformes: Tarsonemidae) infesting greenhouse-grown rice (Oryza sativa L. ssp. indica cv. MR 297) in Malaysia 我国水稻侵染褐蛾螨(恙螨目:褐蛾螨科)首次报道。籼稻简历。MR 297)在马来西亚
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-19 DOI: 10.1007/s13313-026-01132-y
Noriha Mat Amin, Munirah Tharek, Suhana Yusof, Amin Asyraf Tamizi, Maisarah Mohamad Saad, Siti Akhtar Mohshim, Azlinda Erny Yunus, Muhammad Zamharir Ahmad
{"title":"First report of Steneotarsonemus spinki Smiley (Trombidiformes: Tarsonemidae) infesting greenhouse-grown rice (Oryza sativa L. ssp. indica cv. MR 297) in Malaysia","authors":"Noriha Mat Amin,&nbsp;Munirah Tharek,&nbsp;Suhana Yusof,&nbsp;Amin Asyraf Tamizi,&nbsp;Maisarah Mohamad Saad,&nbsp;Siti Akhtar Mohshim,&nbsp;Azlinda Erny Yunus,&nbsp;Muhammad Zamharir Ahmad","doi":"10.1007/s13313-026-01132-y","DOIUrl":"10.1007/s13313-026-01132-y","url":null,"abstract":"<div><p>In October 2024, unusual symptoms not previously associated with known rice diseases in Malaysia were observed in a greenhouse facility at the Malaysian Agricultural Research and Development Institute (MARDI), Serdang, Selangor. Initial signs, characterised by powdery white spots on the lower leaves and orange-yellow tip discolouration, were initially misdiagnosed as nutrient deficiency. Further inspection revealed a white residue and internal browning of the leaf sheath. Scanning electron microscopy (SEM) confirmed the presence of <i>Steneotarsonemus spinki</i> Smiley (panicle rice mite), marking the first confirmed occurrence of this pest in Malaysian greenhouse-grown rice. Treatment with the acaricide spiromesifen resulted in a significant reduction of mite populations within one week, confirming both the role of the mites in the observed damage and the effectiveness of the acaricide. Herbarium specimens of the infected rice panicles were prepared and deposited under voucher numbers MDI 12,564, MDI 12,565, and MDI 12,566. This study investigates and documents the infestation and damage caused by <i>S. spinki</i>, highlighting the pest’s potential threat to Malaysian rice production and the need for vigilant monitoring and management.</p></div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560110","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}
引用次数: 0
Needle-stabbing-streaking: a simple and accurate technique for rapid isolation of Xanthomonas oryzae pv. oryzae from rice leaves 针刺-条纹法:一种简便、准确的快速分离稻瘟病单胞菌技术。从稻叶中提取稻谷
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-19 DOI: 10.1007/s13313-026-01121-1
Manne Tulasi, Devanna Pramesh, Mukanara Nagarajappa Harish, Muthakapalli Krishnareddy Prasannakumar, Channappa Manjunatha
{"title":"Needle-stabbing-streaking: a simple and accurate technique for rapid isolation of Xanthomonas oryzae pv. oryzae from rice leaves","authors":"Manne Tulasi,&nbsp;Devanna Pramesh,&nbsp;Mukanara Nagarajappa Harish,&nbsp;Muthakapalli Krishnareddy Prasannakumar,&nbsp;Channappa Manjunatha","doi":"10.1007/s13313-026-01121-1","DOIUrl":"10.1007/s13313-026-01121-1","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Xanthomonas oryzae</i> pv. <i>oryzae</i> (<i>Xoo</i>) is a destructive pathogen that causes bacterial leaf blight (BLB) disease in rice. Along with <i>Xoo</i>, the BLB-infected leaves are inhabited by many bacterial species, which all produce morphologically similar colonies on culture media, making the selection of <i>Xoo</i> difficult. In the present study, we have tested a simple and modified streaking technique, i.e., the needle-stabbing-streaking method, for rapid and accurate isolation of <i>Xoo</i>. We have used seven different culture media, namely growth factor agar (GFA), nutrient broth yeast extract agar (NBYEA), peptone sucrose agar (PSA), yeast dextrose chalk agar (YDCA), modified <i>Xanthomonas oryzae</i> specific media (mXOS), modified Wakimoto’s medium (MWM), and nutrient agar (NA). We have standardized and adopted a colony polymerase chain reaction (colony PCR) assay for taxonomic confirmation using previously reported <i>Xoo</i>-specific primers. We also employed two other conventional techniques, ooze streaking and direct leaf streaking, for comparison. Among the different methods tested, the needle-stabbing-streaking method provided the maximum <i>Xoo</i> colony count on all the media; however, maximum colonies were recorded on the PSA (<i>n</i> = 36), NBYEA (<i>n</i> = 35), and NA (<i>n</i> = 30) with less or zero contamination on all media within 4 days after inoculation. We also tested the effectiveness of each method for isolating <i>Xoo</i> from the stored samples, which indicated that the needle-stabbing-streaking method could yield positive <i>Xoo</i> colonies up to 15 days after sampling, suggesting its potential wider applicability. Further, this method was validated using on-field-collected BLB-infected leaf samples of three commercial rice cultivars. Therefore, the needle-stabbing-streaking is simple, rapid, efficient, and cultivar-media-independent for the accurate isolation of <i>Xoo</i>.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560579","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}
引用次数: 0
Fusarium avenaceum causes core rot of apple (Malus × domestica Borkh.) in the North-Western Himalayan region of India 印度喜玛拉雅西北地区苹果(Malus × domestica Borkh.)核心腐病是由镰刀菌引起的
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-16 DOI: 10.1007/s13313-026-01136-8
Amit Mandlik, Rishav Kumar, Meenakshi Rana, Isha Devi, Priyank Hanuman Mhatre, Dharam Pal, Santosh Watpade
{"title":"Fusarium avenaceum causes core rot of apple (Malus × domestica Borkh.) in the North-Western Himalayan region of India","authors":"Amit Mandlik,&nbsp;Rishav Kumar,&nbsp;Meenakshi Rana,&nbsp;Isha Devi,&nbsp;Priyank Hanuman Mhatre,&nbsp;Dharam Pal,&nbsp;Santosh Watpade","doi":"10.1007/s13313-026-01136-8","DOIUrl":"10.1007/s13313-026-01136-8","url":null,"abstract":"<div>\u0000 \u0000 <p>Apple is widely cultivated in the North-Western Himalayan region of India. In 2023, wet core rot of apple fruit was recorded at moderate to high severity, leading to excessive pre-harvest fruit drop. The rot was detected in the core areas of the dropped fruit, which appeared healthy with no external signs of disease. Upon cutting the fruit, light brown or straw colour spongy lesions were observed. Following fungal isolation, pure culture of isolates TH8F2 and TH8F3 showed whitish mycelium, which later turned to a greyish rose colour. Pathogenicity assays with both isolates (TH8F2 and TH8F3) reproduced core rot symptoms similar to those observed in field-collected fruit after two-week incubation. Two types of conidia, i.e. macroconidia (30.15 × 3.9 μm) and microconidia (12.64 × 3.11 μm), were observed after 7 days of incubation. Molecular characterization was performed by amplifying two isolates using <i>ITS</i>,<i> TEF1 alpha</i>, and <i>Beta tubulin</i> genes. <i>ITS</i>,<i> Tef1 alpha</i>, and <i>Beta tubulin</i> gene sequences of TH8F2 and TH8F3 isolates showed 99–100% similarity to <i>F. avenaceum</i>. This study marks the first documented case of <i>Fusarium avenaceum</i> causing wet core rot of apples in India.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560147","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}
引用次数: 0
First report of Cladosporium anthropophilum causing leaf spots on sourgrass (Digitaria insularis) in Brazil 在巴西引起酸草叶斑病的嗜人枝孢杆菌首次报道
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-13 DOI: 10.1007/s13313-026-01090-5
Fernando Garcia, Eliane Mayumi Inokuti, André Luiz Firmino, Thaisa Ferreira da Nobrega, Robert Weingart Barreto, Bruno Sérgio Vieira
{"title":"First report of Cladosporium anthropophilum causing leaf spots on sourgrass (Digitaria insularis) in Brazil","authors":"Fernando Garcia,&nbsp;Eliane Mayumi Inokuti,&nbsp;André Luiz Firmino,&nbsp;Thaisa Ferreira da Nobrega,&nbsp;Robert Weingart Barreto,&nbsp;Bruno Sérgio Vieira","doi":"10.1007/s13313-026-01090-5","DOIUrl":"10.1007/s13313-026-01090-5","url":null,"abstract":"<p>Sourgrass (<i>Digitaria insularis</i> L. Fedde) is one of the most aggressive agricultural weeds in the Americas, with widespread populations resistant to glyphosate and acetyl coenzyme A carboxylase (ACCase)–inhibiting herbicides. During a survey of the pathogenic mycobiota associated with sourgrass in Brazil, leaf spot symptoms were observed in December 2020 in Uberaba, Minas Gerais. Lesions were initially circular and later became elliptical, dark brown with a light brown center, occurring mainly on the adaxial leaf surface. A fungus was consistently isolated from necrotic leaf tissues and characterized based on morphological and molecular analyses. The isolate (COAD 3621; KDI 0118) exhibited morphological features typical of <i>Cladosporium</i>. Sequencing of the ITS, ACT, and TEF gene regions followed by BLASTn and multilocus phylogenetic analyses confirmed the identity of the fungus as <i>Cladosporium anthropophilum</i>. Pathogenicity tests conducted on healthy sourgrass plants resulted in severe leaf spot symptoms seven days after inoculation, and the pathogen was successfully reisolated, fulfilling Koch’s postulates. <i>Cladosporium anthropophilum</i> has been previously reported on other plant hosts; however, to our knowledge, this is the first report of <i>C</i>. <i>anthropophilum</i> causing leaf spots on <i>D</i>. <i>insularis</i> in Brazil. Studies evaluating the biocontrol potential of this isolate are currently in progress.</p>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-026-01090-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147441677","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}
引用次数: 0
Diversity and pathogenicity of Colletotrichum species associated with tea anthracnose in Nyingchi, Xizang, China 西藏林芝地区与茶炭疽病相关的炭疽菌种类多样性和致病性
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-09 DOI: 10.1007/s13313-026-01133-x
Huai Jin, Tsering Yangjin, Xuying Lan, Feng Zhang, Hongyan Xia, Wenfeng Gong
{"title":"Diversity and pathogenicity of Colletotrichum species associated with tea anthracnose in Nyingchi, Xizang, China","authors":"Huai Jin,&nbsp;Tsering Yangjin,&nbsp;Xuying Lan,&nbsp;Feng Zhang,&nbsp;Hongyan Xia,&nbsp;Wenfeng Gong","doi":"10.1007/s13313-026-01133-x","DOIUrl":"10.1007/s13313-026-01133-x","url":null,"abstract":"<div>\u0000 \u0000 <p>Tea anthracnose, caused by <i>Colletotrichum</i> species, represents a critical production constraint in tea industry of Xizang, China. However, no systematic study has investigated <i>Colletotrichum</i> species associated with tea anthracnose in this region. In this study, 70 <i>Colletotrichum</i> isolates were obtained from tea leaves collected across nine sampling sites in Nyingchi's three primary production areas. Multilocus phylogenetic analysis and morphological characterization identified five species: <i>C. boninense</i>, <i>C. camelliae</i>,<i> C. jiangxiense</i>, <i>C. fructicola</i>, and <i>C. karsti</i>. Among these, <i>C. camelliae</i> was the most prevalent species in Nyingchi's tea plantations. Pathogenicity assays on the dominant tea cultivar <i>Camellia sinensis</i> ‘Zhonghuang No. 1’ and ‘Fuding-dabaicha’ revealed that <i>C. camelliae</i> and <i>C. jiangxiense</i> exhibited higher virulence. <i>Colletotrichum boninense</i> and <i>C. fructicola</i> exhibited significantly weaker pathogenicity on <i>Camellia sinensis</i> ‘Zhonghuang No. 1’ than on ‘Fuding-dabaicha’. This study provides the first comprehensive identification and pathogenicity evaluation of <i>Colletotrichum</i> species causing tea anthracnose in Xizang's main tea plantations, offering critical insights for regional disease diagnosis and management.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147441223","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}
引用次数: 0
Occurrence of alfalfa dwarf disease in Argentina by a predictive function based on meteorological factors 基于气象因子的阿根廷苜蓿矮秆病发生预测函数
IF 1.1 4区 农林科学
Australasian Plant Pathology Pub Date : 2026-03-09 DOI: 10.1007/s13313-026-01134-w
Veronica Trucco, Franco Suarez, Onias Castellanos Collazo, Dariel Cabrera Mederos, Monica Piccardi, Fabian Giolitti
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