{"title":"Detection of multiple viruses and viroid in apple trees in Brazil and their possible association with decline","authors":"Osmar Nickel, Priscila Grynberg, Thor Vinícius Martins Fajardo","doi":"10.1007/s13314-023-00492-4","DOIUrl":"10.1007/s13314-023-00492-4","url":null,"abstract":"<div><p>In an attempt to provide additional information on the virome in apples in Southern Brazil in face of recurrent events of tree decline, plant samples of regional apple orchards have been submitted to HTS (high-throughput sequencing) analysis. Besides common latent viruses, results showed additionally the presence of apple rubbery wood virus 2 (ARWV 2) and citrus concave gum-associated virus (CCGaV) in orchards with decline history.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41457484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fiona Filardo, Barbara Waterhouse, Lynne Jones, Paul Campbell
{"title":"Yambean mosaic virus and lettuce chlorosis virus in Australia","authors":"Fiona Filardo, Barbara Waterhouse, Lynne Jones, Paul Campbell","doi":"10.1007/s13314-023-00495-1","DOIUrl":"10.1007/s13314-023-00495-1","url":null,"abstract":"<div><p>This is the first report of yambean mosaic virus and lettuce chlorosis virus in Australia. Both viruses were initially identified co-infecting the Fabaceae weed, <i>Calopogonium mucunoides</i> collected from Umagico in far north Queensland. Full coding sequences of both viruses were obtained with high throughput sequencing and confirmed with RT-PCR and Sanger sequencing. Lettuce chlorosis virus has subsequently been confirmed in several other species collected from far north Queensland and may become a new emerging threat to agronomical crops in Australia.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13314-023-00495-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48525423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Akshita Jain, Daniel C. Huston, John Wainer, Mike Hodda, Oliver Hayes, Simon Whittock, Elisabeth Darling, Ross Mann, Jacqueline Edwards, Brendan Rodoni, Timothy Sawbridge
{"title":"Geographic range extension of hop cyst nematode, Heterodera humuli, from Tasmania to the Australian mainland","authors":"Akshita Jain, Daniel C. Huston, John Wainer, Mike Hodda, Oliver Hayes, Simon Whittock, Elisabeth Darling, Ross Mann, Jacqueline Edwards, Brendan Rodoni, Timothy Sawbridge","doi":"10.1007/s13314-023-00494-2","DOIUrl":"10.1007/s13314-023-00494-2","url":null,"abstract":"<div><p>Hop cyst nematode, <i>Heterodera humuli</i> Filipjev, 1934 was found in soil samples collected from hop farms in Bushy Park, Tasmania and in Merriang, Victoria, Australia. Morphological and molecular characteristics were consistent with those described for this species in other parts of the world. Novel gene sequences of ITS rRNA, 28S rRNA and CO1 mtDNA generated from cysts were compared against sequences of <i>H. humuli</i> available on the NCBI GenBank database, demonstrating little to no genetic variation between Australian hop cyst nematode populations and those from other regions. This report provides the first molecular sequence data for <i>H. humuli</i> from Australia and reports a significant range extension of this cyst nematode from Tasmania to the Australian mainland.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13314-023-00494-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46914360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The root-knot nematode Meloidogyne incognita infects passion fruit in the USA","authors":"Abolfazl Hajihassani, Phougeishangbam Rolish Singh, Denis Gitonga","doi":"10.1007/s13314-023-00493-3","DOIUrl":"10.1007/s13314-023-00493-3","url":null,"abstract":"<div><p>Passion fruit (<i>Passiflora edulis</i>) is one of the tropical fruits well-adapted to Florida’s hot and humid climate. A high population of root-knot nematode, <i>Meloidogyne incognita</i> was identified morphologically from soil samples taken from declined passion fruit vines in an organic field in North Florida. Species identification was also confirmed based on DNA-based diagnostics using species-specific primers and sequencing based on D2-D3 of 28 S and ITS of ribosomal DNA. To the best of our knowledge, this is the first report of infection of purple passion fruit with <i>M. incognita</i> in Florida, USA.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42660465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First report of Clonostachys byssicola causing seedling wilt in Litsea deccanensis","authors":"S. Praveena, Shambhu Kumar, P. A. Jose","doi":"10.1007/s13314-023-00491-5","DOIUrl":"10.1007/s13314-023-00491-5","url":null,"abstract":"<div><p><i>Litsea deccanensis</i> is a commercially important tree<i>,</i> distributed in South India and Sri Lanka. The seedlings raised in the nursery were found infected and wilted. The disease incidence rate was recorded nearly 40%. The fungus was isolated from the disease sample and grown on PDA. The same fungus was re-isolated and identified from diseased stems after the pathogenicity test, which showed the pathogenic behaviour of the isolated fungus, thus fulfilling Koch's postulates. Based on cultural and morphological characteristics followed by molecular analyses (ITS and TEF1), the pathogen was identified as <i>Clonostachys byssicola</i> (Bionectriaceae). This communication is the first report of <i>C. byssicola</i> causing seedling wilt in <i>L. deccanensis</i> from the Southern Western Ghats, Kerala, India.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50042105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First report of Paramyrothecium foliicola causing leaf spots on hop","authors":"Caio M. Pereira, Robert W. Barreto","doi":"10.1007/s13314-023-00490-6","DOIUrl":"10.1007/s13314-023-00490-6","url":null,"abstract":"<div><p><i>Paramyrothecium foliicola</i> is reported for the first time in Brazil and worldwide causing leaf spots on hop (<i>Humulus lupulus</i>). The fungus was identified with a combination of morphological and molecular information. The pathogenicity of <i>P. foliicola</i> to hop was demonstrated through inoculations under controlled conditions. </p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50048509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sclerotinia sclerotiorum infects cabbage in Bangladesh","authors":"Ferdous-E Elahi, Md. Mynul Islam, Md. Matiar Rahman","doi":"10.1007/s13314-023-00489-z","DOIUrl":"10.1007/s13314-023-00489-z","url":null,"abstract":"<div><p>White mold of cabbage caused by <i>Sclerotinia sclerotiorum</i> was identified in Bangladesh Agricultural Research Institute (BARI), Bangladesh. The fungus was isolated from the symptomatic leaves of cabbage on potato dextrose agar (PDA) medium. Subsequent inoculation of <i>S. sclerotiorum</i> on detached cabbage leaves and cabbage heads confirmed the pathogenicity of fungus. Based on morphological characteristics and phylogenetic analysis, the pathogen was identified as <i>Sclerotinia sclerotiorum.</i></p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42989952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Siwi Indarti, Rina Maharani, Taryono Taryono, Dirk De Waele
{"title":"Detection of the stunt nematode Tylenchorhynchus annulatus in the rhizosphere of rice and corn in Indonesia","authors":"Siwi Indarti, Rina Maharani, Taryono Taryono, Dirk De Waele","doi":"10.1007/s13314-023-00488-0","DOIUrl":"10.1007/s13314-023-00488-0","url":null,"abstract":"<div><p>A morphometrics, morphological and molecular study revealed the presence of the stunt nematode <i>Tylenchorhynchus annulatus</i> in rhizosphere soil of paddy rice and corn in Central Java, Indonesia. Phylogenetic analysis placed the Indonesian populations in a clade with populations from China and South Korea, separated from populations from the USA. To our knowledge this is the first report of <i>T. annulatus</i> in Indonesia.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47243457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claudia Nischwitz, Abigail Ferson, Maria-Jose Romero-Jimenez, Kholtyn Barney, George Newcombe
{"title":"Confirmation of powdery mildew caused by Podosphaera pannosa on Rosa canina in North America","authors":"Claudia Nischwitz, Abigail Ferson, Maria-Jose Romero-Jimenez, Kholtyn Barney, George Newcombe","doi":"10.1007/s13314-022-00487-7","DOIUrl":"10.1007/s13314-022-00487-7","url":null,"abstract":"<div><p>A powdery mildew has been observed for several years on <i>Rosa canina</i> plants in Idaho and Utah, USA. Morphology showed it was in the genus <i>Podosphaera</i> and sequencing of the internal transcribed spacer (ITS) region indicated <i>Podosphaera pannosa</i>. This is the first confirmed (i.e., evidence-supported) report of <i>P. pannosa</i> occurring on <i>Rosa canina</i> in North America.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44502216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nesibe KILIC, Hümeyra Ayvacı, Mehmet Ertuğrul Güldür, Murat Dikilitas
{"title":"First report of ‘Candidatus Phytoplasma australasia’-related strain’ (16SrII-D) in Pyracantha angustifolia (narrowleaf firethorn)","authors":"Nesibe KILIC, Hümeyra Ayvacı, Mehmet Ertuğrul Güldür, Murat Dikilitas","doi":"10.1007/s13314-022-00486-8","DOIUrl":"10.1007/s13314-022-00486-8","url":null,"abstract":"<div><p>Little leaf and yellowing symptoms associated with phytoplasma disease were observed in <i>Pyracantha angustifolia</i> in Turkey. Amplification (through nested PCR) and virtual restriction fragment length polymorphism (V-RFLP) confirmed the presence of phytoplasma in the symptomatic plants the phylogeny based on the R16F2n/R2 sequences of the <i>P. angustifolia</i> phytoplasma was established and the sequence analysis showed that the isolate had 98.7% similarity to ‘<i>Candidatus</i> Phytoplasma australasia’, a member of the 16SrII-D subgroup. This is the first world report of a phytoplasma in <i>P. angustifolia</i> and its first identification in the Republic of Türkiye.</p></div>","PeriodicalId":45862,"journal":{"name":"Australasian Plant Disease Notes","volume":"18 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47429705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}