Quantitative assay of Pachymetra chaunorhiza, a root pathogen of sugarcane in Australia
A quantitative assay based on the direct count of oospores extracted from soil was developed for Pachymetra chaunorhiza, a recently described pathogen associated with poor root syndrome of sugarcane in Australia. The efficiency of oospore recovery and the size distribution of oospores in a naturally...
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| Veröffentlicht in: | Phytopathology 1989-11, Vol.79 (11), p.1302-1305 |
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| container_title | Phytopathology |
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| creator | Magarey, R.C. (Bureau of Sugar Experiment Stations, Tully, Queensland, Australia) |
| description | A quantitative assay based on the direct count of oospores extracted from soil was developed for Pachymetra chaunorhiza, a recently described pathogen associated with poor root syndrome of sugarcane in Australia. The efficiency of oospore recovery and the size distribution of oospores in a naturally infested soil were investigated. The relationship between soil oospore density and P. chaunorhiza root rot was investigated with a susceptible sugarcane cultivar Q90 growing in pasteurized soil inoculated with cultured oospores, in naturally infested field soils diluted with pasteurized soil, and in assayed soils infected with P. chaunorhiza. The results suggest a strong relationship between oospore population and root rot and indicate that the assay is a useful method for quantifying P. chaunorhiza in field soils |
| doi_str_mv | 10.1094/Phyto-79-1302 |
| format | Article |
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(Bureau of Sugar Experiment Stations, Tully, Queensland, Australia)</creator><creatorcontrib>Magarey, R.C. (Bureau of Sugar Experiment Stations, Tully, Queensland, Australia)</creatorcontrib><description>A quantitative assay based on the direct count of oospores extracted from soil was developed for Pachymetra chaunorhiza, a recently described pathogen associated with poor root syndrome of sugarcane in Australia. The efficiency of oospore recovery and the size distribution of oospores in a naturally infested soil were investigated. The relationship between soil oospore density and P. chaunorhiza root rot was investigated with a susceptible sugarcane cultivar Q90 growing in pasteurized soil inoculated with cultured oospores, in naturally infested field soils diluted with pasteurized soil, and in assayed soils infected with P. chaunorhiza. The results suggest a strong relationship between oospore population and root rot and indicate that the assay is a useful method for quantifying P. chaunorhiza in field soils</description><identifier>ISSN: 0031-949X</identifier><identifier>EISSN: 1943-7684</identifier><identifier>DOI: 10.1094/Phyto-79-1302</identifier><identifier>CODEN: PHYTAJ</identifier><language>eng</language><publisher>St. Paul, MN: American Phytopathological Society</publisher><subject>ANALISIS ; ANALYSE ; AUSTRALIA ; AUSTRALIE ; Biological and medical sciences ; CHAMPIGNON ; ENSAYO BIOLOGICO ; ESPORAS ; ESSAI BIOLOGIQUE ; Fundamental and applied biological sciences. Psychology ; Fungal plant pathogens ; FUNGI ; INOCULO ; INOCULUM ; Pathology, epidemiology, host-fungus relationships. Damages, economic importance ; Phytopathology. Animal pests. 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The results suggest a strong relationship between oospore population and root rot and indicate that the assay is a useful method for quantifying P. chaunorhiza in field soils</description><subject>ANALISIS</subject><subject>ANALYSE</subject><subject>AUSTRALIA</subject><subject>AUSTRALIE</subject><subject>Biological and medical sciences</subject><subject>CHAMPIGNON</subject><subject>ENSAYO BIOLOGICO</subject><subject>ESPORAS</subject><subject>ESSAI BIOLOGIQUE</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Fungal plant pathogens</subject><subject>FUNGI</subject><subject>INOCULO</subject><subject>INOCULUM</subject><subject>Pathology, epidemiology, host-fungus relationships. Damages, economic importance</subject><subject>Phytopathology. Animal pests. 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Plant and forest protection</topic><topic>PODREDUMBRE DE LA RAIZ</topic><topic>POURRITURE DES RACINES</topic><topic>SACCHARUM</topic><topic>SPORE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Magarey, R.C. (Bureau of Sugar Experiment Stations, Tully, Queensland, Australia)</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Phytopathology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Magarey, R.C. (Bureau of Sugar Experiment Stations, Tully, Queensland, Australia)</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantitative assay of Pachymetra chaunorhiza, a root pathogen of sugarcane in Australia</atitle><jtitle>Phytopathology</jtitle><date>1989-11-01</date><risdate>1989</risdate><volume>79</volume><issue>11</issue><spage>1302</spage><epage>1305</epage><pages>1302-1305</pages><issn>0031-949X</issn><eissn>1943-7684</eissn><coden>PHYTAJ</coden><abstract>A quantitative assay based on the direct count of oospores extracted from soil was developed for Pachymetra chaunorhiza, a recently described pathogen associated with poor root syndrome of sugarcane in Australia. The efficiency of oospore recovery and the size distribution of oospores in a naturally infested soil were investigated. The relationship between soil oospore density and P. chaunorhiza root rot was investigated with a susceptible sugarcane cultivar Q90 growing in pasteurized soil inoculated with cultured oospores, in naturally infested field soils diluted with pasteurized soil, and in assayed soils infected with P. chaunorhiza. The results suggest a strong relationship between oospore population and root rot and indicate that the assay is a useful method for quantifying P. chaunorhiza in field soils</abstract><cop>St. Paul, MN</cop><pub>American Phytopathological Society</pub><doi>10.1094/Phyto-79-1302</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-949X |
| ispartof | Phytopathology, 1989-11, Vol.79 (11), p.1302-1305 |
| issn | 0031-949X 1943-7684 |
| language | eng |
| recordid | cdi_crossref_primary_10_1094_Phyto_79_1302 |
| source | EZB-FREE-00999 freely available EZB journals; American Phytopathological Society Journal Back Issues |
| subjects | ANALISIS ANALYSE AUSTRALIA AUSTRALIE Biological and medical sciences CHAMPIGNON ENSAYO BIOLOGICO ESPORAS ESSAI BIOLOGIQUE Fundamental and applied biological sciences. Psychology Fungal plant pathogens FUNGI INOCULO INOCULUM Pathology, epidemiology, host-fungus relationships. Damages, economic importance Phytopathology. Animal pests. Plant and forest protection PODREDUMBRE DE LA RAIZ POURRITURE DES RACINES SACCHARUM SPORE |
| title | Quantitative assay of Pachymetra chaunorhiza, a root pathogen of sugarcane in Australia |
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