ORCID Profile
0000-0002-4565-6148
Current Organisations
Biosecurity Queensland
,
Queensland University of Technology
,
Universiteit Utrecht
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Publisher: Springer Science and Business Media LLC
Date: 16-07-2014
Publisher: CSIRO Publishing
Date: 2019
DOI: 10.1071/MA19036
Abstract: The Queensland Plant Pathology Herbarium (BRIP) and its associated collection of fungal and bacterial cultures have obtained Australian and international recognition as critical resources for agricultural research and plant biosecurity. For decades, many key agricultural and mycological studies published in international journals have examined Australian reference specimens obtained from BRIP. The Queensland Plant Pathology Herbarium is now seeking to reposition itself as a significant provider of unique Australian cultures. This ambitious journey could unlock the potential of Australian specimens to provide novel bioactive natural products that may benefit society.
Publisher: Springer Science and Business Media LLC
Date: 10-2016
Publisher: Naturalis Biodiversity Center
Date: 23-12-2010
Publisher: Wiley
Date: 18-03-2020
DOI: 10.1111/PPA.13170
Publisher: Scientific Societies
Date: 08-2018
Publisher: Naturalis Biodiversity Center
Date: 31-12-2012
Publisher: Springer Science and Business Media LLC
Date: 22-03-2013
Publisher: Frontiers Media SA
Date: 16-07-2020
Publisher: Naturalis Biodiversity Center
Date: 09-11-2180
DOI: 10.3767/PERSOONIA.2019.42.08
Abstract: Mycoleptodiscus includes plant pathogens, animal opportunists, saprobic and endophytic fungi. The present study presents the first molecular phylogeny and revision of the genus based on four loci, including ITS, LSU, rpb2 , and tef1 . An extensive collection of Mycoleptodiscus cultures, including ex-type strains from the CBS, IMI, MUCL, BRIP, clinical isolates from the USA, and fresh isolates from Brazil and Spain, was studied morphologically and phylogenetically to resolve their taxonomy. The study showed that Mycoleptodiscus sensu lato is polyphyletic. Phylogenetic analysis places Mycoleptodiscus in Muyocopronales ( Dothideomycetes ), together with Arxiella , Leptodiscella , Muyocopron , Neocochlearomyces , and Paramycoleptodiscus . Mycoleptodiscus terrestris , the type species, and M. sphaericus are reduced to synonyms, and one new species is introduced, M. suttonii. Mycoleptodiscus atromaculans , M. coloratus , M. freycinetiae , M. geniculatus , M. indicus , M. lateralis (including M. unilateralis and M. variabilis as its synonyms) and M. taiwanensis belong to Muyocopron ( Muyocopronales , Dothideomycetes ), and M. affinis , and M. lunatus to Omnidemptus ( Magnaporthales , Sordariomycetes ). Based on phylogenetic analyses we propose Muyocopron alcornii sp. nov., a fungus associated with leaf spots on Epidendrum sp. ( Orchidaceae ) in Australia, Muyocopron zamiae sp. nov. associated with leaf spots on Zamia ( Zamiaceae ) in the USA, and Omnidemptus graminis sp. nov. isolated from a grass ( Poaceae ) in Spain. Furthermore, Neomycoleptodiscus venezuelense gen. & sp. nov. is introduced for a genus similar to Mycoleptodiscus in Muyocopronaceae .
Publisher: Elsevier BV
Date: 05-2015
DOI: 10.1016/J.FUNBIO.2014.09.004
Abstract: Novel species of Cercospora and Pseudocercospora are described from Australian native plant species. These taxa are Cercospora ischaemi sp. nov. on Ischaemum australe (Poaceae) Pseudocercospora airliensis sp. nov. on Polyalthia nitidissima (Annonaceae) Pseudocercospora proiphydis sp. nov. on Proiphys amboinensis (Amaryllidaceae) and Pseudocercospora jagerae sp. nov. on Jagera pseudorhus var. pseudorhus (Sapindaceae). These species were characterised by morphology and an analysis of partial nucleotide sequence data for the three gene loci, ITS, LSU and EF-1α. Recent ergence of closely related Australian species of Pseudocercospora on native plants is proposed.
Publisher: Naturalis Biodiversity Center
Date: 31-12-2011
Publisher: Public Library of Science (PLoS)
Date: 29-05-2020
Publisher: Springer Science and Business Media LLC
Date: 02-2015
Publisher: Wiley
Date: 23-03-2017
DOI: 10.1111/PPA.12697
Publisher: Springer Science and Business Media LLC
Date: 11-08-2012
Publisher: Springer Science and Business Media LLC
Date: 18-09-2012
Publisher: Westerdijk Fungal Biodiversity Institute
Date: 09-2012
DOI: 10.3114/SIM0014
Publisher: Springer Science and Business Media LLC
Date: 05-11-2016
Publisher: Springer Science and Business Media LLC
Date: 09-09-2014
Publisher: Springer Science and Business Media LLC
Date: 08-06-2013
Publisher: Naturalis Biodiversity Center
Date: 30-06-2014
Publisher: Springer Science and Business Media LLC
Date: 09-06-2018
Publisher: Naturalis Biodiversity Center
Date: 10-12-2014
Publisher: Springer Science and Business Media LLC
Date: 07-11-2016
Publisher: Springer Science and Business Media LLC
Date: 25-08-2012
Publisher: Springer Science and Business Media LLC
Date: 08-04-2018
Publisher: Springer Science and Business Media LLC
Date: 16-09-2017
Publisher: Springer Science and Business Media LLC
Date: 24-05-2011
Publisher: Westerdijk Fungal Biodiversity Institute
Date: 09-2019
DOI: 10.1016/J.SIMYCO.2019.05.001
Abstract: This paper represents the third contribution in the Genera of Phytopathogenic Fungi (GOPHY) series. The series provides morphological descriptions, information about the pathology, distribution, hosts and disease symptoms for the treated genera, as well as primary and secondary DNA barcodes for the currently accepted species included in these. This third paper in the GOPHY series treats 21 genera of phytopathogenic fungi and their relatives including: Allophoma , Alternaria , Brunneosphaerella , Elsinoe , Exserohilum , Neosetophoma , Neostagonospora , Nothophoma , Parastagonospora , Phaeosphaeriopsis , Pleiocarpon , Pyrenophora , Ramichloridium , Seifertia , Seiridium , Septoriella , Setophoma , Stagonosporopsis , Stemphylium , Tubakia and Zasmidium . This study includes three new genera, 42 new species, 23 new combinations, four new names, and three typifications of older names.
Publisher: Naturalis Biodiversity Center
Date: 23-12-2015
Publisher: Springer Science and Business Media LLC
Date: 25-11-2015
Publisher: Pensoft Publishers
Date: 15-06-2823
DOI: 10.3897/MYCOKEYS.35.25665
Abstract: 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 Litchichinensis (Sapindaceae) and C.colbranii sp. nov. from Crinumzeylanicum (Amaryllidaceae). Curvulariareesii sp. nov. was described from an isolate obtained from an air s le. Furthermore, DNA sequences from ex-type cultures supported the generic placement of C.neoindica and the transfer of Drechsleraboeremae to Curvularia .
Publisher: The Mycological Society of Japan
Date: 2015
Publisher: American Society for Microbiology
Date: 15-12-2008
DOI: 10.1128/AEM.00767-08
Abstract: Lactococcus lactis is a gram-positive bacterium that is widely used in the food industry and is therefore desirable as a candidate for the production and secretion of recombinant proteins. Previously, we generated a L. lactis strain that expressed and secreted the antimicrobial cell wall-lytic enzyme lysostaphin. To identify lactococcal gene products that affect the production of lysostaphin, we isolated and characterized mutants generated by random transposon mutagenesis that had altered lysostaphin activity. Out of 35,000 mutants screened, only one with no lysostaphin activity was identified, and it was found to contain an insertion in the lysostaphin expression cassette. Ten mutants with higher lysostaphin activity contained insertions in only four different genes, which encode an uncharacterized putative transmembrane protein (llmg_0609) (three mutants), an enzyme catalyzing the first step in peptidoglycan biosynthesis ( murA2 ) (five mutants), a putative regulator of peptidoglycan modification ( trmA ) (one mutant), and an uncharacterized enzyme possibly involved in ubiquinone biosynthesis (llmg_2148) (one mutant). These mutants were found to secrete larger amounts of lysostaphin than the control strain (MG1363[ lss ]), and the greatest increase in secretion was 9.8- to 16.1-fold, for the llmg_0609 mutants. The lysostaphin-oversecreting llmg_0609, murA2 , and trmA mutants were also found to secrete larger amounts of another cell wall-lytic enzyme (the Listeria monocytogenes bacteriophage endolysin Ply511) than the control strain, indicating that the phenotype is not limited to lysostaphin.
Publisher: Springer Science and Business Media LLC
Date: 14-02-2015
Publisher: American Society for Microbiology
Date: 10-2007
DOI: 10.1128/AEM.00413-07
Abstract: In Lactococcus lactis , the interactions between oxidative defense, metal metabolism, and respiratory metabolism are not fully understood. To provide an insight into these processes, we isolated and characterized mutants of L. lactis resistant to the oxidizing agent tellurite (TeO 3 2− ), which generates superoxide radicals intracellularly. A collection of tellurite-resistant mutants was obtained using random transposon mutagenesis of L. lactis . These contained insertions in genes encoding a proton-coupled Mn 2+ /Fe 2+ transport homolog ( mntH ), the high-affinity phosphate transport system ( pstABCDEF ), a putative osmoprotectant uptake system ( choQ ), and a homolog of the oxidative defense regulator spx ( trmA ). The tellurite-resistant mutants all had better survival than the wild type following aerated growth. The mntH mutant was found to be impaired in Fe 2+ uptake, suggesting that MntH is a Fe 2+ transporter in L. lactis . This mutant is capable of carrying out respiration but does not generate as high a final pH and does not exhibit the long lag phase in the presence of hemin and oxygen that is characteristic of wild-type L. lactis . This study suggests that tellurite-resistant mutants also have increased resistance to oxidative stress and that intracellular Fe 2+ can heighten tellurite and oxygen toxicity.
Publisher: Springer Science and Business Media LLC
Date: 04-05-2019
Publisher: Wiley
Date: 16-01-2012
Publisher: Pensoft Publishers
Date: 08-02-2021
DOI: 10.3897/MYCOKEYS.78.60063
Abstract: Ascochyta koolunga (Didymellaceae, Pleosporales) was first described in 2009 (as Phoma koolunga ) and identified as the causal agent of Ascochyta blight of Pisum sativum (field pea) in South Australia. Since then A. koolunga has not been reported anywhere else in the world, and its origins and occurrence on other legume (Fabaceae) species remains unknown. Blight and leaf spot diseases of Australian native, pasture and naturalised legumes were studied to investigate a possible native origin of A. koolunga . Ascochyta koolunga was not detected on native, naturalised or pasture legumes that had leaf spot symptoms, in any of the studied regions in southern Australia, and only one isolate was recovered from P. sativum . However, we isolated five novel species in the Didymellaceae from leaf spots of Australian native legumes from commercial field pea regions throughout southern Australia. The novel species were classified on the basis of morphology and phylogenetic analyses of the internal transcribed spacer region and part of the RNA polymerase II subunit B gene region. Three of these species, Nothophoma garlbiwalawarda sp. nov. , Nothophoma naiawu sp. nov. and Nothophoma ngayawang sp. nov. , were isolated from Senna artemisioides . The other species described here are Epicoccum djirangnandiri sp. nov. from Swainsona galegifolia and Neodidymelliopsis tinkyukuku sp. nov. from Hardenbergia violacea . In addition, we report three new host-pathogen associations in Australia, namely Didymella pinodes on S. artemisioides and Vicia cracca , and D. lethalis on Lathyrus tingitanus . This is also the first report of Didymella prosopidis in Australia.
Publisher: Westerdijk Fungal Biodiversity Institute
Date: 03-2017
DOI: 10.1016/J.SIMYCO.2017.04.002
Abstract: Genera of Phytopathogenic Fungi (GOPHY) is introduced as a new series of publications in order to provide a stable platform for the taxonomy of phytopathogenic fungi. This first paper focuses on 21 genera of phytopathogenic fungi: Bipolaris , Boeremia , Calonectria , Ceratocystis , Cladosporium , Colletotrichum , Coniella , Curvularia , Monilinia , Neofabraea , Neofusicoccum , Pilidium , Pleiochaeta , Plenodomus , Protostegia , Pseudopyricularia , Puccinia , Saccharata , Thyrostroma , Venturia and Wilsonomyces . For each genus, a morphological description and information about its pathology, distribution, hosts and disease symptoms are provided. In addition, this information is linked to primary and secondary DNA barcodes of the presently accepted species, and relevant literature. Moreover, several novelties are introduced, i.e. new genera, species and combinations, and neo-, lecto- and epitypes designated to provide a stable taxonomy. This first paper includes one new genus, 26 new species, ten new combinations, and four typifications of older names.
Publisher: Naturalis Biodiversity Center
Date: 18-12-2018
Publisher: Springer Science and Business Media LLC
Date: 23-06-2012
Publisher: Westerdijk Fungal Biodiversity Institute
Date: 09-2012
DOI: 10.3114/SIM0002
Publisher: Naturalis Biodiversity Center
Date: 30-06-2018
Publisher: Springer Science and Business Media LLC
Date: 04-07-2019
Publisher: Springer Science and Business Media LLC
Date: 2010
No related grants have been discovered for Yu Pei Tan.