Australasian Plant Pathology最新文献_第4页

First report of black mold caused by Diaporthe eres on Rosa multiflora in China 中国多花蔷薇由孢子引起的黑霉首次报道

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-04-01 DOI: 10.1007/s13313-025-01037-2

Dong Zhao, Junlong Feng, Shuqun Deng, Chenxu Gao, Shuo Shen, Hongyu Chen, Wei Li

{"title":"First report of black mold caused by Diaporthe eres on Rosa multiflora in China","authors":"Dong Zhao, Junlong Feng, Shuqun Deng, Chenxu Gao, Shuo Shen, Hongyu Chen, Wei Li","doi":"10.1007/s13313-025-01037-2","DOIUrl":"10.1007/s13313-025-01037-2","url":null,"abstract":"<div>In Qinghai Province, China, the wild rose (Rosa multiflora Thunb) has been identified as a critical host for a virulent strain of Diaporthe eres, which is implicated in the causation of the catastrophic black mold disease. A plant specimen, manifesting intense symptoms indicative of black mold, underwent a meticulous diagnostic process. Employing a combination of morphological assessments and nucleotide sequencing of key genetic markers—Internal Transcribed Spacer (ITS), Translation Elongation Factor 1-α (TEF1-α), Tubulin 2 (TUB2), Histidine biosynthesis (HIS3), and Calmodulin (CAL)—the pathogenic fungus was unequivocally identified as Diaporthe eres. The reisolation of this strain, adhering to the principles of Koch’s postulates, substantiated its etiological role in the black mold disease affecting wild roses. This study represents the inaugural documentation of Diaporthe eres infection and its pathological consequences in wild roses within the Chinese context, providing critical insights into the pathogen’s potential impact on native vegetation and shaping prospective strategies for disease management.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"54 2","pages":"237 - 240"},"PeriodicalIF":1.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-025-01037-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160707","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

Foliar phosphite application to manage kauri (Agathis australis) dieback 叶面亚磷酸酯在杉木枯梢管理中的应用

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-25 DOI: 10.1007/s13313-025-01033-6

Shannon Hunter, Nick Waipara, Bruce Burns, Peter Scott, Mathew Arnet, Nari Williams

{"title":"Foliar phosphite application to manage kauri (Agathis australis) dieback","authors":"Shannon Hunter, Nick Waipara, Bruce Burns, Peter Scott, Mathew Arnet, Nari Williams","doi":"10.1007/s13313-025-01033-6","DOIUrl":"10.1007/s13313-025-01033-6","url":null,"abstract":"<div>Phosphite (HPO32–) is an effective chemical treatment used to manage Phytophthora diseases in natural and horticultural environments. In New Zealand it is applied as a trunk injection to protect the threatened endemic foundation tree, Agathis australis (kauri), from the invasive pathogen P. agathidicida. It is applied as a foliar spray in natural ecosystems in Australia to protect against a range of Phytophthora-associated diseases and retain plant biodiversity and abundance. Foliar spray application could be a useful method for broad area treatment and to protect isolated and difficult-to-reach stands of kauri, or in plant production settings. In this study, we assessed the efficacy of phosphite when applied as a foliar spray to inhibit P. agathidicida colonisation, the phytotoxicity response and whether the phosphite was translocated to the roots using two glasshouse experiments with 2- and 6-year-old kauri plants. The foliar phosphite treatment effectively reduced colonisation by P. agathidicida in the 2-year-old plants and elevated concentrations of phosphite in the roots of the 6-year-old plants were detected. Phytotoxicity increased with increasing phosphite concentration in both trials. The addition of the surfactant Du-Wett® reduced phytotoxicity for older leaves in the 6-year-old plants. In both assays, phytotoxicity symptoms were most severe on young leaves but had no effect on the production of fresh growth following treatment, suggesting that any ill effects were short-lived. This study indicates that phosphite foliar sprays may be an effective tool to manage kauri dieback under the appropriate circumstances.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"54 2","pages":"209 - 220"},"PeriodicalIF":1.1,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-025-01033-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169045","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

Identification of Nigrospora sphaerica and Curvularia lunata as causal agents of leaf spot disease in cantaloupe (Cucumis melo L.) in Southern Vietnam 越南甜瓜叶斑病病原菌球形黑孢菌和月曲孢菌的鉴定

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-24 DOI: 10.1007/s13313-025-01028-3

Anh Tuan Hoang, Thanh Tung Lam, Hong Thuy Phan Thi, Hai Nguyen Thi, Hoang Phuc Pham, Ly Doan Thi, Duc Duy Ngo, Anh Duy Do

{"title":"Identification of Nigrospora sphaerica and Curvularia lunata as causal agents of leaf spot disease in cantaloupe (Cucumis melo L.) in Southern Vietnam","authors":"Anh Tuan Hoang, Thanh Tung Lam, Hong Thuy Phan Thi, Hai Nguyen Thi, Hoang Phuc Pham, Ly Doan Thi, Duc Duy Ngo, Anh Duy Do","doi":"10.1007/s13313-025-01028-3","DOIUrl":"10.1007/s13313-025-01028-3","url":null,"abstract":"<div>Leaf spot disease poses a significant threat to cantaloupe (Cucumis melo L.) production in Vietnam due to its detrimental impact on yield, fruit quality, and economic profitability. Despite its importance, the causal agents and epidemiological patterns of the disease remain poorly understood. This study investigated the prevalence of leaf spot disease in three major cantaloup-growing regions in southern Vietnam, including Binh Duong, Tay Ninh, and Ho Chi Minh City, and further identified the responsible pathogens. Disease monitoring revealed that disease incidence (DI) ranged from 15 to 22% during fruit maturation at 50 days after planting. Additionally, the disease severity index (DSI) varied from 6.33 to 11.89, highlighting the necessity of pathogen identification to develop effective disease management strategies. Through morphological characterization, molecular analysis of ITS, tub, and TEF1α gene regions, and pathogenicity tests following Koch’s postulates, two fungal pathogens were identified: Nigrospora sphaerica (N1) and Curvularia lunata (N2). Pathogenicity studies confirmed their high virulence, with both pathogens causing significant disease symptoms by 11 days post-inoculation, consistent with Koch’s postulates. This study represents the first report of these pathogens causing leaf spot disease in cantaloupe in Vietnam, providing crucial insights for developing effective disease management strategies in the region.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"54 2","pages":"177 - 186"},"PeriodicalIF":1.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168732","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

Pretreatment of cucumber seeds with benzothiadiazole (BTH) induced resistance against damping-off caused by Pythium aphanidermatum 苯并噻唑（BTH）预处理黄瓜种子对蛇皮霉（pyium aphanidermatum）的抗性

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-24 DOI: 10.1007/s13313-025-01032-7

Neda Salari, Hamidreza Alizadeh, Zahra Roudbari

{"title":"Pretreatment of cucumber seeds with benzothiadiazole (BTH) induced resistance against damping-off caused by Pythium aphanidermatum","authors":"Neda Salari, Hamidreza Alizadeh, Zahra Roudbari","doi":"10.1007/s13313-025-01032-7","DOIUrl":"10.1007/s13313-025-01032-7","url":null,"abstract":"<div>Resistance-inducing compounds represent a novel strategy for managing plant diseases. This study investigated the efficacy of benzothiadiazole (BTH) in mitigating cucumber damping-off disease through seed pretreatment under greenhouse conditions. The expression patterns of defense genes (PR1, PAL1, and LOX) were assessed at multiple time points (0, 24, 48, and 72 h) post-pathogen inoculation via qPCR. Disease index analysis revealed a significant reduction in disease severity in the 100 μg/ml BTH treatment group (43.33% disease index) compared with the untreated control group (100% disease index). Following BTH treatment, rapid and robust upregulation of the LOX and PAL1 genes was observed shortly after inoculation, peaking at 72 h and significantly differing from the control levels. Elevated LOX expression indicated that BTH-induced resistance was mediated through the JA signaling pathway. Conversely, PR1 gene expression did not differ significantly between BTH-treated and control plants. These findings underscore BTH as a promising, straightforward, and environmentally safe approach for managing cucumber damping-off disease. This study contributes insights into plant defense mechanisms and highlights BTH’s potential for use in sustainable agricultural practices aimed at enhancing crop protection and productivity.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"54 2","pages":"199 - 208"},"PeriodicalIF":1.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-025-01032-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168733","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

First report of Fusarium equiseti causing basal rot of onion bulbs from India 印度产洋葱根茎腐病镰刀菌初报

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-24 DOI: 10.1007/s13313-025-01029-2

Ram Dutta, K. Jayalakshmi, A. Radhakrishna, Satish Kumar, Suresh J. Gawande, D.C. Manjunathagowda, A. J. Gupta, Hem Raj Bhandari, Vinay Kumar, Priya Y. Gawande, Komal Khandekar, Vishal S. Gurav, Vijay Mahajan

引用次数: 0

Salvia japonica essential oil as biocontrol agent: suppressing Fusarium oxysporum in Pinus sylversteis Var. Mongolica seedling blight 鼠尾草精油对蒙古松幼苗枯萎病尖孢镰刀菌的防治作用

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-24 DOI: 10.1007/s13313-025-01027-4

Jingyu Ji, Qiuer Sa, Cheng Chen, Yundi Zhang, Fucheng Lin, Wenzhuo Sun, Jie Zhang, Guocai Zhang, Weihu Ma

{"title":"Salvia japonica essential oil as biocontrol agent: suppressing Fusarium oxysporum in Pinus sylversteis Var. Mongolica seedling blight","authors":"Jingyu Ji, Qiuer Sa, Cheng Chen, Yundi Zhang, Fucheng Lin, Wenzhuo Sun, Jie Zhang, Guocai Zhang, Weihu Ma","doi":"10.1007/s13313-025-01027-4","DOIUrl":"10.1007/s13313-025-01027-4","url":null,"abstract":"<div>Salvia japonica essential oil (SJEO) is a natural active substance that has been widely used in medicine and food preservation. However, the antifungal mechanism of SJEO against plant pathogens is not well understood. This study examined the antifungal activity of SJEO against Fusarium oxysporum (F. oxysporum). The results demonstrated that SJEO significantly inhibits the mycelial growth and conidial germination of F. oxysporum in a dose-dependent manner. Scanning electron microscopy (SEM) confirmed that SJEO induces mycelial shrinkage, deformation, and rupture. Moreover, SJEO treatment substantially reduced the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), with decreases of 82.49%, 82.82%, and 58.38%, respectively, in the EC50-treated group compared to the control group at 60 h. In contrast, the levels of malondialdehyde (MDA) and hydrogen peroxide (H2O2) were significantly elevated. SJEO also increased the permeability of the cell membranes of F. oxysporum, which led to the reduction of the cell contents. Additionally, SJEO at the EC50 concentration significantly decreased the activities of endo-1,4-β-glucanase (EG), polygalacturonase (PG), and pectin lyase (PL) by 18.66%, 40.62%, and 80.19%, respectively, compared to the control group at 60 h. Blight in Pinus sylvestris var. mongolica was significantly reduced following SJEO treatment (p < 0.05). In summary, SJEO disrupts cellular redox balance and intensifies lipid peroxidation in cell membranes, leading to increased membrane permeability and ultimately cell death, and reduces the pathogenicity of F. oxysporum. These findings indicate that SJEO holds promise as a novel fungicide for controlling blight in Pinus sylvestris var. mongolica.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"54 2","pages":"163 - 176"},"PeriodicalIF":1.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168731","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

Stalk and bulb decay of garlic (Allium sativum L.) caused by Rahnella perminowiae in Iran 伊朗大蒜（Allium sativum L.）茎部和球茎腐烂病

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-21 DOI: 10.1007/s13313-025-01031-8

Esmaeil Basavand, Pejman Khodaygan, Sedigheh MohammadiKhah

引用次数: 0

Distribution and characterization of phytoplasmas infecting flower crops with diverse symptoms in Andhra Pradesh State, India 印度安得拉邦不同症状花卉作物植物原体感染的分布和特征

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-20 DOI: 10.1007/s13313-025-01034-5

D. Meghanath, K. Arunodhayam, M. Gurivi Reddy, Ch. Ruth, M. Raja Naik, K. Gopal

{"title":"Distribution and characterization of phytoplasmas infecting flower crops with diverse symptoms in Andhra Pradesh State, India","authors":"D. Meghanath, K. Arunodhayam, M. Gurivi Reddy, Ch. Ruth, M. Raja Naik, K. Gopal","doi":"10.1007/s13313-025-01034-5","DOIUrl":"10.1007/s13313-025-01034-5","url":null,"abstract":"<div>During field surveys in 2022-23, phytoplasma diseases were a significant threat to the major flower crops of Andhra Pradesh, India, causing substantial economic losses. In this study, symptoms of phytoplasma were observed in three predominant flower crops of Andhra Pradesh: marigold, crossandra, and jasmine. Samples were collected from major flower growing areas of the state and subjected to PCR assays using universal P1/P7, R16F2n/R2 primers for amplification of the 16 S rRNA gene and gene-specific SecAfor2/Rev3 primers for amplification of a part of the secA gene. The 16 S rRNA gene sequence identity percentage based on Blast and in silico RFLP analysis of PCR-amplified phytoplasma 16 S rDNA was used to identify and classify them into sub-groups. The restriction profiles generated by digestion with 17 restriction endonucleases, showed that phytoplasma strains infecting marigold were highly uniform with members of ‘Candidatus Phytoplasma asteris’ (16SrI-B) and the phytoplasma strains infecting crossandra and jasmine were uniform with members of ‘Candidatus Phytoplasma australasiaticum’ (16SrII-D) subgroup. These phytoplasma strains were not previously reported to infect any flower crops in the state. Marigold, crossandra and jasmine are therefore considered new hosts for the 16SrI and 16SrII group phytoplasmas in Andhra Pradesh. In addition, this study also identified some new disease symptoms in marigold plants in addition to previously known ones.</div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"54 2","pages":"221 - 230"},"PeriodicalIF":1.1,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167123","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

Correction: Mitigation effects of gamma ırradiation (60Co) and Trichoderma species against Fusarium and Pythium diseases in cucumber 更正：γ ırradiation （60Co）和木霉对黄瓜镰刀菌病和霉病的缓解作用

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-19 DOI: 10.1007/s13313-025-01036-3

Hasret Gunes, Murside Hatipoglu, Muhsin Yildiz, Selma Kipcak Bitik, Ceknas Erdinc, Semra Demir

引用次数: 0

First report of Colletotrichum siamense and Colletotrichum theobromicola causing anthracnose on achachairu (Garcinia humilis) 柽柳炭疽菌和可可炭疽菌引起柽柳炭疽的首次报道

IF 1.1 4区农林科学

Australasian Plant Pathology Pub Date : 2025-03-19 DOI: 10.1007/s13313-025-01035-4

Caio Vitor da Silva Anjos, Denise de Santana Silva, Kevison Romulo da Silva França, Mayra Machado de Medeiros Ferro, Jaqueline Figueredo de Oliveira Costa, João Narciso de Melo Marques, Maria Gabriela Monteiro de Carvalho Andrade, Iraildes Pereira Assunção, Gaus Silvestre de Andrade Lima

引用次数: 0