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P W Crous - One of the best experts on this subject based on the ideXlab platform.
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cryptic species of curvularia in the culture collection of the queensland Plant Pathology herbarium
MycoKeys, 2018Co-Authors: P W Crous, R G ShivasAbstract:Several unidentified specimens of Curvularia deposited in the Queensland Plant Pathology Herbarium were re-examined. Phylogenetic analyses based on sequence data of the internal transcribed spacer region, partial fragments of the glyceraldehyde-3-phosphate dehydrogenase and the translation elongation factor 1-α genes, supported the introduction of 13 novel Curvularia species. Eight of the species described, namely, C. beasleyi sp. nov., C. beerburrumensis sp. nov., C. eragrosticola sp. nov., C. kenpeggii sp. nov., C. mebaldsii sp. nov., C. petersonii sp. nov., C. platzii sp. nov. and C. warraberensis sp. nov., were isolated from grasses (Poaceae) exotic to Australia. Only two species, C. lamingtonensis sp. nov. and C. sporobolicola sp. nov., were described from native Australian grasses. Two species were described from hosts in other families, namely, C. coatesiae sp. nov. from Litchi chinensis (Sapindaceae) and C. colbranii sp. nov. from Crinum zeylanicum (Amaryllidaceae). Curvularia reesii sp. nov. was described from an isolate obtained from an air sample. Furthermore, DNA sequences from ex-type cultures supported the generic placement of C. neoindica and the transfer of Drechslera boeremae to Curvularia.
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eight novel bipolaris species identified from john l alcorn s collections at the queensland Plant Pathology herbarium brip
Mycological Progress, 2016Co-Authors: P W Crous, R G ShivasAbstract:Several unidentified specimens of Bipolaris deposited in the Queensland Plant Pathology Herbarium (BRIP) that were previously recognised by Dr. John L. Alcorn as taxonomically interesting were re-examined. The morphology of conidia and conidiophores, as well as phylogenetic inference from the analyses of three loci (ITS, GAPDH and TEF1α) supported the classification of eight novel Bipolaris species, which were originally isolated from leaf spots on grasses (Poaceae).
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identifying and naming Plant pathogenic fungi past present and future
Annual Review of Phytopathology, 2015Co-Authors: P W Crous, David L Hawksworth, Michael J WingfieldAbstract:Scientific names are crucial in communicating knowledge about fungi. In Plant Pathology, they link information regarding the biology, host range, distribution, and potential risk. Our understanding of fungal biodiversity and fungal systematics has undergone an exponential leap, incorporating genomics, web-based systems, and DNA data for rapid identification to link species to metadata. The impact of our ability to recognize hitherto unknown organisms on Plant Pathology and trade is enormous and continues to grow. Major challenges for phytomycology are intertwined with the Genera of Fungi project, which adds DNA barcodes to known biodiversity and corrects the application of old, established names via epi- or neotypification. Implementing the one fungus–one name system and linking names to validated type specimens, cultures, and reference sequences will provide the foundation on which the future of Plant Pathology and the communication of names of Plant pathogens will rest.
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one fungus one name promotes progressive Plant Pathology
Molecular Plant Pathology, 2012Co-Authors: Michael J Wingfield, Wilhelm Z De Bee, Ernard Slippers, Enda D Wingfield, Johannes Z Groenewald, Lorenzo Lombard, P W CrousAbstract:The robust and reliable identification of fungi underpins virtually every element of Plant Pathology, from disease diagnosis to studies of biology, management/control, quarantine and, even more recently, comparative genomics. Most Plant diseases are caused by fungi, typically pleomorphic organisms, for which the taxonomy and, in particular, a dual nomenclature system have frustrated and confused practitioners of Plant Pathology. The emergence of DNA sequencing has revealed cryptic taxa and revolutionized our understanding of relationships in the fungi. The impacts on Plant Pathology at every level are already immense and will continue to grow rapidly as new DNA sequencing technologies continue to emerge. DNA sequence comparisons, used to resolve a dual nomenclature problem for the first time only 19 years ago, have made it possible to approach a natural classification for the fungi and to abandon the confusing dual nomenclature system. The journey to a one fungus, one name taxonomic reality has been long and arduous, but its time has come. This will inevitably have a positive impact on Plant Pathology, Plant pathologists and future students of this hugely important discipline on which the world depends for food security and Plant health in general. This contemporary review highlights the problems of a dual nomenclature, especially its impact on Plant pathogenic fungi, and charts the road to a one fungus, one name system that is rapidly drawing near.
R G Shivas - One of the best experts on this subject based on the ideXlab platform.
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cryptic species of curvularia in the culture collection of the queensland Plant Pathology herbarium
MycoKeys, 2018Co-Authors: P W Crous, R G ShivasAbstract:Several unidentified specimens of Curvularia deposited in the Queensland Plant Pathology Herbarium were re-examined. Phylogenetic analyses based on sequence data of the internal transcribed spacer region, partial fragments of the glyceraldehyde-3-phosphate dehydrogenase and the translation elongation factor 1-α genes, supported the introduction of 13 novel Curvularia species. Eight of the species described, namely, C. beasleyi sp. nov., C. beerburrumensis sp. nov., C. eragrosticola sp. nov., C. kenpeggii sp. nov., C. mebaldsii sp. nov., C. petersonii sp. nov., C. platzii sp. nov. and C. warraberensis sp. nov., were isolated from grasses (Poaceae) exotic to Australia. Only two species, C. lamingtonensis sp. nov. and C. sporobolicola sp. nov., were described from native Australian grasses. Two species were described from hosts in other families, namely, C. coatesiae sp. nov. from Litchi chinensis (Sapindaceae) and C. colbranii sp. nov. from Crinum zeylanicum (Amaryllidaceae). Curvularia reesii sp. nov. was described from an isolate obtained from an air sample. Furthermore, DNA sequences from ex-type cultures supported the generic placement of C. neoindica and the transfer of Drechslera boeremae to Curvularia.
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eight novel bipolaris species identified from john l alcorn s collections at the queensland Plant Pathology herbarium brip
Mycological Progress, 2016Co-Authors: P W Crous, R G ShivasAbstract:Several unidentified specimens of Bipolaris deposited in the Queensland Plant Pathology Herbarium (BRIP) that were previously recognised by Dr. John L. Alcorn as taxonomically interesting were re-examined. The morphology of conidia and conidiophores, as well as phylogenetic inference from the analyses of three loci (ITS, GAPDH and TEF1α) supported the classification of eight novel Bipolaris species, which were originally isolated from leaf spots on grasses (Poaceae).
Karenbeth G Scholthof - One of the best experts on this subject based on the ideXlab platform.
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a beacon for applied Plant Pathology the origins of Plant disease
Plant Disease, 2017Co-Authors: Paul D Peterso, Steve C Nelso, Karenbeth G ScholthofAbstract:This year marks a full century since the founding of the journal Plant Disease. The story of how the journal developed, from its origins as a service publication of the USDA in 1917 to the leading applied journal in the field today, reflects on major historical themes in Plant Pathology. Central to this narrative is the delicate balancing act in Plant Pathology between fundamental and applied science. During the 1960s and 1970s, substantial numbers of Plant pathologists in the U.S. expressed concerns through the American Phytopathological Society (APS) over what they viewed as an alarming and increasing scarcity of applied papers in the flagship journal, PhytoPathology. These concerns led increasingly to calls for a second APS journal devoted to applied research. After a period of uncertainty and indecision, the dissolution of the USDA Plant Disease Reporter (PDR) in 1979 offered APS leadership an unusual opportunity to assume publication of a journal with a 63-year legacy of publishing practical Plant pa...
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top 10 Plant viruses in molecular Plant Pathology
Molecular Plant Pathology, 2011Co-Authors: Karenbeth G Scholthof, Sco Adkins, Henryk Czosnek, Pete Palukaitis, Emmanuel Jacquo, Thomas Hoh, Arbara Hoh, Keith Saunders, Thierry Candresse, Paul AhlquisAbstract:Many scientists, if not all, feel that their particular Plant virus should appear in any list of the most important Plant viruses. However, to our knowledge, no such list exists. The aim of this review was to survey all Plant virologists with an association with Molecular Plant Pathology and ask them to nominate which Plant viruses they would place in a 'Top 10' based on scientific/economic importance. The survey generated more than 250 votes from the international community, and allowed the generation of a Top 10 Plant virus list for Molecular Plant Pathology. The Top 10 list includes, in rank order, (1) Tobacco mosaic virus, (2) Tomato spotted wilt virus, (3) Tomato yellow leaf curl virus, (4) Cucumber mosaic virus, (5) Potato virus Y, (6) Cauliflower mosaic virus, (7) African cassava mosaic virus, (8) Plum pox virus, (9) Brome mosaic virus and (10) Potato virus X, with honourable mentions for viruses just missing out on the Top 10, including Citrus tristeza virus, Barley yellow dwarf virus, Potato leafroll virus and Tomato bushy stunt virus. This review article presents a short review on each virus of the Top 10 list and its importance, with the intent of initiating discussion and debate amongst the Plant virology community, as well as laying down a benchmark, as it will be interesting to see in future years how perceptions change and which viruses enter and leave the Top 10.
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one foot in the furrow linkages between agriculture Plant Pathology and public health
Annual Review of Public Health, 2003Co-Authors: Karenbeth G ScholthofAbstract:▪ Abstract Plant Pathology is a field of biology that focuses on understanding the nature of disease in Plants as well as on more practical aspects of preventing and controlling Plant diseases in crop Plants that are important to agriculture. Throughout history, Plant diseases have had significant effects on human health and welfare. Several examples, in both historical and contemporary contexts, are presented in this review to show how Plant pathogens, biotechnology, and farming practices have affected public health. Specific topics illustrating clear linkages between agriculture and human health include allergens in the environment, food-safety and agricultural practices, mycotoxigenic fungi, agrobioterrorism, and the biological control of Plant diseases. The further argument is made that in order to monitor and ensure that good health and safety practices are maintained from “farm to fork,” public health specialists may benefit from the resources and expertise of agricultural scientists. Man does no...
Franck Panabieres - One of the best experts on this subject based on the ideXlab platform.
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the top 10 oomycete pathogens in molecular Plant Pathology
Molecular Plant Pathology, 2015Co-Authors: Sophie Kamou, Jonatha D G Jones, Olive J Furze, Howard S Judelso, Gul Shad Ali, Ronaldo J D Dalio, S Roy, Leonardo Schena, Antonios Zambounis, Franck PanabieresAbstract:Oomycetes form a deep lineage of eukaryotic organisms that includes a large number of Plant pathogens which threaten natural and managed ecosystems. We undertook a survey to query the community for their ranking of Plant-pathogenic oomycete species based on scientific and economic importance. In total, we received 263 votes from 62 scientists in 15 countries for a total of 33 species. The Top 10 species and their ranking are: (1) Phytophthora infestans; (2, tied) Hyaloperonospora arabidopsidis; (2, tied) Phytophthora ramorum; (4) Phytophthora sojae; (5) Phytophthora capsici; (6) Plasmopara viticola; (7) Phytophthora cinnamomi; (8, tied) Phytophthora parasitica; (8, tied) Pythium ultimum; and (10) Albugo candida. This article provides an introduction to these 10 taxa and a snapshot of current research. We hope that the list will serve as a benchmark for future trends in oomycete research.
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the top 10 oomycete pathogens in molecular Plant Pathology top 10 oomycete Plant pathogens
Molecular Plant Pathology, 2015Co-Authors: Sophie Kamou, Jonatha D G Jones, Olive J Furze, Howard S Judelso, Gul Shad Ali, Ronaldo J D Dalio, S Roy, Leonardo Schena, Antonios Zambounis, Franck PanabieresAbstract:Oomycetes form a deep lineage of eukaryotic organisms that includes a large number of Plant pathogens which threaten natural and managed ecosystems. We undertook a survey to query the community for their ranking of Plant-pathogenic oomycete species based on scientific and economic importance. In total, we received 263 votes from 62 scientists in 15 countries for a total of 33 species. The Top 10 species and their ranking are: (1) Phytophthora infestans; (2, tied) Hyaloperonospora arabidopsidis; (2, tied) Phytophthora ramorum; (4) Phytophthora sojae; (5) Phytophthora capsici; (6) Plasmopara viticola; (7) Phytophthora cinnamomi; (8, tied) Phytophthora parasitica; (8, tied) Pythium ultimum; and (10) Albugo candida. This article provides an introduction to these 10 taxa and a snapshot of current research. We hope that the list will serve as a benchmark for future trends in oomycete research.
Jonatha D G Jones - One of the best experts on this subject based on the ideXlab platform.
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the top 10 oomycete pathogens in molecular Plant Pathology top 10 oomycete Plant pathogens
Molecular Plant Pathology, 2015Co-Authors: Sophie Kamou, Jonatha D G Jones, Olive J Furze, Howard S Judelso, Gul Shad Ali, Ronaldo J D Dalio, S Roy, Leonardo Schena, Antonios Zambounis, Franck PanabieresAbstract:Oomycetes form a deep lineage of eukaryotic organisms that includes a large number of Plant pathogens which threaten natural and managed ecosystems. We undertook a survey to query the community for their ranking of Plant-pathogenic oomycete species based on scientific and economic importance. In total, we received 263 votes from 62 scientists in 15 countries for a total of 33 species. The Top 10 species and their ranking are: (1) Phytophthora infestans; (2, tied) Hyaloperonospora arabidopsidis; (2, tied) Phytophthora ramorum; (4) Phytophthora sojae; (5) Phytophthora capsici; (6) Plasmopara viticola; (7) Phytophthora cinnamomi; (8, tied) Phytophthora parasitica; (8, tied) Pythium ultimum; and (10) Albugo candida. This article provides an introduction to these 10 taxa and a snapshot of current research. We hope that the list will serve as a benchmark for future trends in oomycete research.
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the top 10 oomycete pathogens in molecular Plant Pathology
Molecular Plant Pathology, 2015Co-Authors: Sophie Kamou, Jonatha D G Jones, Olive J Furze, Howard S Judelso, Gul Shad Ali, Ronaldo J D Dalio, S Roy, Leonardo Schena, Antonios Zambounis, Franck PanabieresAbstract:Oomycetes form a deep lineage of eukaryotic organisms that includes a large number of Plant pathogens which threaten natural and managed ecosystems. We undertook a survey to query the community for their ranking of Plant-pathogenic oomycete species based on scientific and economic importance. In total, we received 263 votes from 62 scientists in 15 countries for a total of 33 species. The Top 10 species and their ranking are: (1) Phytophthora infestans; (2, tied) Hyaloperonospora arabidopsidis; (2, tied) Phytophthora ramorum; (4) Phytophthora sojae; (5) Phytophthora capsici; (6) Plasmopara viticola; (7) Phytophthora cinnamomi; (8, tied) Phytophthora parasitica; (8, tied) Pythium ultimum; and (10) Albugo candida. This article provides an introduction to these 10 taxa and a snapshot of current research. We hope that the list will serve as a benchmark for future trends in oomycete research.
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Plant Pathology paranoid Plants have their genes examined
Current Biology, 1994Co-Authors: Jonatha D G JonesAbstract:Plants confronted with pathogens to which they are resistant use defence mechanisms that often include localized cell death. Mutants with altered regulation of this 'hypersensitive response' have now been isolated.