Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean
Cercospora leaf blight (CLB) of soybean was believed to be caused only by Cercospora kikuchii worldwide. However, recent studies that include molecular phylogenetic analyses reveal that several cryptic species within Cercospora are associated with the disease. In a previous study, following a survey of commercial soybean fields in Santa Cruz, Bolivia, Cercospora spp. strains were isolated and identified as Cercospora cf. nicotianae based on morphological characteristics and by sequencing parts of the calmodulin, histone H3, and translation elongation factor 1-α genes and placing into a multilocus phylogeny. In the present study, pathogenicity tests were carried out in greenhouse assays on eleven soybean varieties which confirmed the infection and reproduction of the symptoms originally observed in the field. All the inoculated varieties were infected and showed CLB symptoms. Isolates were recovered from all soybean varieties tested and monoconidial cultures resembled original inoculum, completing Koch’s postulates. Thus, we confirm that according to the morphology of the conidia and cultures, pathogenicity tests, and molecular identification, C. cf. nicotianae is a causal agent of CLB of soybean.
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KOHA-OAI-AGRO:538832024-02-15T14:43:11Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=53883http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGCercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybeanSautua, Francisco JoséSearight, JacobDoyle, Vinson P.Scandiani, María MercedesCarmona, Marcelo Aníbaltextengapplication/pdfCercospora leaf blight (CLB) of soybean was believed to be caused only by Cercospora kikuchii worldwide. However, recent studies that include molecular phylogenetic analyses reveal that several cryptic species within Cercospora are associated with the disease. In a previous study, following a survey of commercial soybean fields in Santa Cruz, Bolivia, Cercospora spp. strains were isolated and identified as Cercospora cf. nicotianae based on morphological characteristics and by sequencing parts of the calmodulin, histone H3, and translation elongation factor 1-α genes and placing into a multilocus phylogeny. In the present study, pathogenicity tests were carried out in greenhouse assays on eleven soybean varieties which confirmed the infection and reproduction of the symptoms originally observed in the field. All the inoculated varieties were infected and showed CLB symptoms. Isolates were recovered from all soybean varieties tested and monoconidial cultures resembled original inoculum, completing Koch’s postulates. Thus, we confirm that according to the morphology of the conidia and cultures, pathogenicity tests, and molecular identification, C. cf. nicotianae is a causal agent of CLB of soybean.Cercospora leaf blight (CLB) of soybean was believed to be caused only by Cercospora kikuchii worldwide. However, recent studies that include molecular phylogenetic analyses reveal that several cryptic species within Cercospora are associated with the disease. In a previous study, following a survey of commercial soybean fields in Santa Cruz, Bolivia, Cercospora spp. strains were isolated and identified as Cercospora cf. nicotianae based on morphological characteristics and by sequencing parts of the calmodulin, histone H3, and translation elongation factor 1-α genes and placing into a multilocus phylogeny. In the present study, pathogenicity tests were carried out in greenhouse assays on eleven soybean varieties which confirmed the infection and reproduction of the symptoms originally observed in the field. All the inoculated varieties were infected and showed CLB symptoms. Isolates were recovered from all soybean varieties tested and monoconidial cultures resembled original inoculum, completing Koch’s postulates. Thus, we confirm that according to the morphology of the conidia and cultures, pathogenicity tests, and molecular identification, C. cf. nicotianae is a causal agent of CLB of soybean.CERCOSPORA KIKUCHIIC. CF. SIGESBECKIAE . C.CF. FLAGELLARISCERCOSPORA SP. P.KOCH’S POSTULATES‘FROGEYE’ LEAF SPOTEuropean Journal of Plant Pathology |
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CERCOSPORA KIKUCHII C. CF. SIGESBECKIAE . C. CF. FLAGELLARIS CERCOSPORA SP. P. KOCH’S POSTULATES ‘FROGEYE’ LEAF SPOT CERCOSPORA KIKUCHII C. CF. SIGESBECKIAE . C. CF. FLAGELLARIS CERCOSPORA SP. P. KOCH’S POSTULATES ‘FROGEYE’ LEAF SPOT |
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CERCOSPORA KIKUCHII C. CF. SIGESBECKIAE . C. CF. FLAGELLARIS CERCOSPORA SP. P. KOCH’S POSTULATES ‘FROGEYE’ LEAF SPOT CERCOSPORA KIKUCHII C. CF. SIGESBECKIAE . C. CF. FLAGELLARIS CERCOSPORA SP. P. KOCH’S POSTULATES ‘FROGEYE’ LEAF SPOT Sautua, Francisco José Searight, Jacob Doyle, Vinson P. Scandiani, María Mercedes Carmona, Marcelo Aníbal Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean |
| description |
Cercospora leaf blight (CLB) of soybean was believed to be caused only by Cercospora kikuchii worldwide. However, recent studies that include molecular phylogenetic analyses reveal that several cryptic species within Cercospora are associated with the disease. In a previous study, following a survey of commercial soybean fields in Santa Cruz, Bolivia, Cercospora spp. strains were isolated and identified as Cercospora cf. nicotianae based on morphological characteristics and by sequencing parts of the calmodulin, histone H3, and translation elongation factor 1-α genes and placing into a multilocus phylogeny. In the present study, pathogenicity tests were carried out in greenhouse assays on eleven soybean varieties which confirmed the infection and reproduction of the symptoms originally observed in the field. All the inoculated varieties were infected and showed CLB symptoms. Isolates were recovered from all soybean varieties tested and monoconidial cultures resembled original inoculum, completing Koch’s postulates. Thus, we confirm that according to the morphology of the conidia and cultures, pathogenicity tests, and molecular identification, C. cf. nicotianae is a causal agent of CLB of soybean. |
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Texto |
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CERCOSPORA KIKUCHII C. CF. SIGESBECKIAE . C. CF. FLAGELLARIS CERCOSPORA SP. P. KOCH’S POSTULATES ‘FROGEYE’ LEAF SPOT |
| author |
Sautua, Francisco José Searight, Jacob Doyle, Vinson P. Scandiani, María Mercedes Carmona, Marcelo Aníbal |
| author_facet |
Sautua, Francisco José Searight, Jacob Doyle, Vinson P. Scandiani, María Mercedes Carmona, Marcelo Aníbal |
| author_sort |
Sautua, Francisco José |
| title |
Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean |
| title_short |
Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean |
| title_full |
Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean |
| title_fullStr |
Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean |
| title_full_unstemmed |
Cercospora cf. nicotianae is a causal agent of Cercospora leaf blight of soybean |
| title_sort |
cercospora cf. nicotianae is a causal agent of cercospora leaf blight of soybean |
| url |
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=53883 http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= |
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