Australasian Plant Pathology最新文献

{"title":"Identification, characterization and fungicide screening of Diaporthe eres causing gummosis in Citrus reticulata cv. Hongmeiren","authors":"Le Liu,&nbsp;Liang Chen,&nbsp;Jianyuan Lin,&nbsp;Haixiong Liu","doi":"10.1007/s13313-026-01142-w","DOIUrl":"10.1007/s13313-026-01142-w","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Citrus reticulata</i> cv. Hongmeiren is widely cultivated in China. However, citrus gummosis poses a significant challenge to the commercial cultivation of Hongmeiren. In this study, the pathogenic fungus was identified as <i>Diaporthe eres</i> based on morphological characteristics, pathogenicity assay, and genes sequence analyses of ITS, <i>EF1-α</i>, and <i>TUB</i>. The optimal growth conditions for <i>D. eres</i> on potato dextrose agar (PDA) were found at 28 °C, pH 7.0, with sucrose as the carbon source and peptone as the nitrogen source. Among six tested fungicides, 50% thiophanate-methyl demonstrated the strongest inhibitory effect, with an EC₅₀ value of 5.36 µg mL^− 1. This study represents the first documented case of <i>D. eres</i> causing gummosis in Hongmeiren in China.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643055","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 red spot disease caused by Epicoccum sorghinum in dragon fruits (Hylocereus sp.) in Nepal","authors":"Ram Bahadur Khadka,&nbsp;Bibek Dabargainya,&nbsp;Sachida Pokhrel,&nbsp;Arpan Parajuli,&nbsp;Bibechana Paudel,&nbsp;Ishwar Adhikari,&nbsp;Ranjana Rawal","doi":"10.1007/s13313-026-01140-y","DOIUrl":"10.1007/s13313-026-01140-y","url":null,"abstract":"","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643018","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 Fusarium incarnatum causing basal rot of onion (Allium cepa) from India","authors":"Ram Dutta,&nbsp;K Jayalakshmi,&nbsp;A Radhakrishna,&nbsp;Satish Kumar,&nbsp;V Karuppaiah,&nbsp;P S Soumia,&nbsp;Vinay Kumar,&nbsp;Komal Khandekar,&nbsp;Vishal S. Gurav,&nbsp;Pranjali V Bhadane,&nbsp;Srushti S Pisal,&nbsp;Vijay Mahajan","doi":"10.1007/s13313-026-01144-8","DOIUrl":"10.1007/s13313-026-01144-8","url":null,"abstract":"","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642599","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":"Evaluation of nematophagous and mycoparasitic potential of some nematode-trapping fungi against plant parasitic nematodes and fungal pathogen Rhizoctonia solani","authors":"Abhay Pratap Singh,&nbsp;Dharmendra Kumar,&nbsp;Chandra Mohan Singh","doi":"10.1007/s13313-026-01139-5","DOIUrl":"10.1007/s13313-026-01139-5","url":null,"abstract":"<div><p>Nematode-trapping fungi (NTF) are unique soil inhabitants capable of capturing and killing nematodes through specialized trapping structures. Some NTF species also exhibit mycoparasitic behavior, suggesting a dual lifestyle with potential for broad-spectrum biological control. In the present study, nine NTF isolates from orchard soils of the Bundelkhand region, India, were evaluated for their nematophagous and mycoparasitic potential against <i>Meloidogyne incognita</i>, <i>Anguina tritici</i> and <i>Rhizoctonia solani</i>. Based on morphological and molecular characterization (ITS1–ITS4 sequencing), the isolates were identified as <i>Arthrobotrys thaumasia</i> isolates, <i>A. musiformis</i>, <i>A. jinpingensis</i> isolates, <i>A. sphaeroides</i>, <i>A. conoides</i>, <i>Dactylellina phymatopaga</i> and <i>Drechslerella brochopaga</i>. All isolates captured and killed juveniles of <i>M. incognita</i> and <i>A. tritici</i> using distinct trapping devices, while seven isolates exhibited hyphal coiling and parasitism on <i>R. solani</i>. <i>D. brochopaga</i> showed the highest predation against <i>M. incognita</i> (92.6%), whereas <i>A. jinpingensis</i> was most effective against <i>A. tritici</i> (84.33%). Among mycoparasitic fungi, <i>A. thaumasia</i> isolates showed the highest mycoparasitic potential, followed by <i>A. musiformis</i>, by forming hyphal coiling around <i>R. solani</i>. This study represents the first evidence of mycoparasitic potential in <i>A. thaumasia</i> isolates, <i>A. jinpingensis</i> isolates, <i>A. musiformis</i>, and <i>A. sphaeroides</i>. The findings highlight the dual ecological role of NTF as nematophagous and mycoparasitic fungi, underscoring their promise as eco-friendly biocontrol agents in integrated disease management systems.</p></div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607013","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 Fusarium tricinctum causing corm rot on saffron (Crocus sativus L.) in India","authors":"Farha Bhatti,&nbsp;Maryam Banoo,&nbsp;Syed Riyaz-Ul-Hassan","doi":"10.1007/s13313-026-01138-6","DOIUrl":"10.1007/s13313-026-01138-6","url":null,"abstract":"","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607072","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 Colletotrichum aenigma and C. fructicola causing anthracnose on olive (Olea europaea) in China","authors":"Xiaowen Xu,&nbsp;Yuping Zha,&nbsp;Yinru Liu,&nbsp;Yingao Hu,&nbsp;Yixun Wang","doi":"10.1007/s13313-026-01141-x","DOIUrl":"10.1007/s13313-026-01141-x","url":null,"abstract":"","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-026-01141-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607232","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":"Applying Awamori Distillery waste for biological soil disinfestation on Shimajiri Mahji soil in Miyako Island, Okinawa, Japan: Identifying the indigenous Fusarium pathogen of green okra","authors":"Takashi Hanagasaki,&nbsp;Atsushi Ajitomi,&nbsp;Ryuichi Kobashikawa,&nbsp;Naoki Taniai","doi":"10.1007/s13313-026-01135-9","DOIUrl":"10.1007/s13313-026-01135-9","url":null,"abstract":"<div>\u0000 \u0000 <p>Miyako Island is a major vegetable-producing region in Okinawa Prefecture, but soilborne diseases such as Fusarium wilt are prevalent, necessitating effective soil treatmnent measures. Biological soil disinfestation (BSD) is regarded as an effective alternative to chemical soil fumigation for managing these diseases. Awamori distillery waste—the residue produced after fermenting <i>indica</i> rice—is generated locally during liquor production and may serve as an effective material for BSD. This study evaluated the use of Awamori waste in the BSD treatment of Shimajiri Mahji soil on Miyako Island by monitoring changes in the oxidation-reduction potential (ORP), pathogen bud cells, crop yield. In laboratory experiments, BSD treatment with Awamori waste containing &gt; 0.05 wt% carbon reduced <i>Fusarium nirenbergiae</i> to undetectable levels when the soil redox potential dropped below − 200 mV. In glasshouse experiments, BSD treatment with Awamori waste containing 0.2 wt% carbon similarly decreased <i>F. nirenbergiae</i> to undetectable levels. Furthermore, the marketable yield of green okra cultivated after BSD with Awamori waste was significantly higher than the yield cultivated after BSD with ECOLOGA ~ L^®. In the field trial, BSD-treated soil with undiluted Awamori waste (4.5 wt% carbon) was associated with fewer diseased plants and a higher marketable yield of pumpkin. Additionally, in the greenhouse trial, BSD with Awamori waste containing 0.1 wt% carbon was associated with fewer diseased plants and an improved marketable yield of bitter gourd. In conclusion, Awamori waste represents a highly effective and sustainable material for BSD treatment, and its application should be widely promoted in agricultural fields throughout Okinawa Prefecture.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561802","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":"Host range of Colletotrichum pyricola: an aggressive pathogen of eucalypts","authors":"Aindreeya Alcova,&nbsp;Peter K. Ades,&nbsp;Jacqueline Edwards,&nbsp;Yu Pei Tan,&nbsp;Niloofar Vaghefi,&nbsp;Paul W.J. Taylor","doi":"10.1007/s13313-026-01109-x","DOIUrl":"10.1007/s13313-026-01109-x","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Colletotrichum</i> is a fungal genus, comprising many plant pathogens that pose a significant threat to agriculture globally, however, their diversity and host range on Australian native plants remain poorly understood. <i>Colletotrichum pyricola</i>, first described as a fruit rot pathogen of <i>Pyrus communis</i> (common pear) in New Zealand, has also been reported in Australia, but its broader host range and potential biosecurity risk remain unknown. In this study, pathogenicity bioassays revealed that <i>Co. pyricola</i> can infect a range of Australian natives, including <i>Banksia burdettii</i>, <i>Clematis aristata</i>, <i>Eucalyptus caesia</i>, and <i>Leptospermum grandifolium</i>, as well as fruit trees, <i>Malus domestica</i> (apple) and <i>Persea americana</i> (avocado). Detached-leaf pathogenicity bioassays using both wound and non-wound inoculation showed <i>Co. pyricola</i> was also able to cause disease symptoms on a range of eucalypt species (<i>Angophora</i>, <i>Corymbia</i>, and <i>Eucalyptus</i>). Additionally, the re-isolation of <i>Co. pyricola</i> from asymptomatic, non-wounded tissues and microscopic observation of appressoria support a latent or hemibiotropic lifestyle. Therefore, these asymptomatic infections may allow the fungus to persist undetected across hosts and environments, facilitating long-term dispersal. These findings expand the known host range and potential geographic distribution of <i>Co. pyricola</i> in Australia, highlighting the importance of understanding fungal pathogens in native plant communities.</p>\u0000 </div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":"55 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-026-01109-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561509","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":"Eco-Friendly Alternatives for Sugar Beet Leaf Rust Control: Thiourea and Moringa Essential Oil","authors":"Kamal A. M. Abo-Elyousr,&nbsp;Mansour M. El-Fawy,&nbsp;Moshref M. Sh. Ahmed,&nbsp;Rabee A. Emam,&nbsp;Ahmed A. K. Alsherbiny,&nbsp;Bassem N. Samra,&nbsp;Abeer S. Alqurashi,&nbsp;Esmat F. Ali,&nbsp;Hatim M. AI-Yasi,&nbsp;Nashwa MA. Sallam","doi":"10.1007/s13313-026-01099-w","DOIUrl":"10.1007/s13313-026-01099-w","url":null,"abstract":"<div>\u0000 \u0000 <p>Sugar beet (<i>Beta vulgaris</i> L.) is the second sugar crop grown in Egypt after sugarcane, and it contributes significantly to sugar production. Rust disease caused by <i>Uromyces betae</i> is among the numerous fungal diseases that affect sugar beet and it has a significant effect on productivity. The purpose of this study was to examine the impacts of thiourea (CH₄N₂S) and moringa (<i>Moringa oleifera</i>) seed oil treatments on disease control, root yield and sugar content. In vitro, thiourea (5, 10, 15 and 20 mM) and moringa essential oil (100, 250, 500, 750 and 1000 μl/L) were tested for their ability to inhibit the germination of urediniospores of <i>U. betae</i>. Thiourea significantly decreased the germination of urediniospores of <i>U. betae</i> at the concentrations studied, from 100% in the control to 26.0% at 20 mM, and the germination was 63.0% to 29.3% with increasing concentration from 100 – 1000 µL L⁻¹ for moringa oil. Under greenhouse and field conditions, disease severity was significantly reduced with both treatments. In the greenhouse, these were lowered (%, mean ± SD) to 11.03 ± 1.44 and 11.12 ± 1.88 using moringa oil, and field trials (2023/24 and 2024/25 seasons,) of thiourea dipped tubers gave disease scores ranging from by (42.8–45.5% %) when compared with untreated control. Root yield and TSS increased significantly; the highest root yield (34.56 ± 3.11 t feddan⁻¹) and sugar content (21.01 ± 0.44%) were obtained with thiourea. They also reduced potassium, sodium, and α-amino-nitrogen. We could recommend moringa essential oil and thiourea as powerful,safe alternatives for managing sugar beet rust disease and improving root yield characteristics. Moringa oil is an effective antifungal agent against fungal plant diseases, but more thorough research is needed to understand its effects fully.</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":"147560754","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":"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}