Occurence of corn stunt spiroplasma at different elevations in Mexico
A survey of Spiroplasma kunkelii, or corn stunt spiroplasma (CSS), was conducted in Mexico from October 1985 to March 1988 using phase contrast or dark field light microscopy (DFM) and enzyme-linked immunosorbent assay (ELISA). Three types of symptoms were observed: consistently stunted plants whose leaves had well-defined broad chlorotic streaking and that were usually observed at 60–940 m above sea level, plants that were not always stunted but whose leaf margins showed red to purple streaks, and plants that usually were not stunted but whose leaves showed either a diffuse yellow or a chlorotic stripe condition with or without red margins. Both the second and third symptom types were observed at all elevations surveyed and usually appeared around 7 days before or after anthesis. ELISA was better than DFM at detecting CSS, but both methods demonstrated that all samples with the first type of symptom, 51–70% of those with the second type, 43–46% of those with the third type, and 3–11% of those without symptoms were infected with CSS. The disease was more prevalent at lower than at higher elevations. These results indicate high prevalence and wide distribution of CSS in Mexico and also confirm that maize plants having reddish or purplish leaves are often infected with CSS.
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Format: | Article biblioteca |
Language: | English |
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American Phytopathological Society (APS)
1989
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Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, Bacterioses, Mycoplasmatales, Methods, Mexico, MAIZE, SPIROPLASMA, ELISA, DISEASE RESISTANCE, VIRULENCE, ZEA MAYS, |
Online Access: | http://hdl.handle.net/10883/1930 |
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dig-cimmyt-10883-19302021-02-09T18:25:31Z Occurence of corn stunt spiroplasma at different elevations in Mexico Bajet, N.B. Renfro, B.L. AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Bacterioses Mycoplasmatales Methods Mexico MAIZE SPIROPLASMA ELISA DISEASE RESISTANCE VIRULENCE ZEA MAYS A survey of Spiroplasma kunkelii, or corn stunt spiroplasma (CSS), was conducted in Mexico from October 1985 to March 1988 using phase contrast or dark field light microscopy (DFM) and enzyme-linked immunosorbent assay (ELISA). Three types of symptoms were observed: consistently stunted plants whose leaves had well-defined broad chlorotic streaking and that were usually observed at 60–940 m above sea level, plants that were not always stunted but whose leaf margins showed red to purple streaks, and plants that usually were not stunted but whose leaves showed either a diffuse yellow or a chlorotic stripe condition with or without red margins. Both the second and third symptom types were observed at all elevations surveyed and usually appeared around 7 days before or after anthesis. ELISA was better than DFM at detecting CSS, but both methods demonstrated that all samples with the first type of symptom, 51–70% of those with the second type, 43–46% of those with the third type, and 3–11% of those without symptoms were infected with CSS. The disease was more prevalent at lower than at higher elevations. These results indicate high prevalence and wide distribution of CSS in Mexico and also confirm that maize plants having reddish or purplish leaves are often infected with CSS. 926-930 2013-06-07T21:07:46Z 2013-06-07T21:07:46Z 1989 Article 0191-2917 http://hdl.handle.net/10883/1930 English CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. Open Access PDF MEXICO Mexico American Phytopathological Society (APS) 11 73 Plant Disease |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Bacterioses Mycoplasmatales Methods Mexico MAIZE SPIROPLASMA ELISA DISEASE RESISTANCE VIRULENCE ZEA MAYS AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Bacterioses Mycoplasmatales Methods Mexico MAIZE SPIROPLASMA ELISA DISEASE RESISTANCE VIRULENCE ZEA MAYS |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Bacterioses Mycoplasmatales Methods Mexico MAIZE SPIROPLASMA ELISA DISEASE RESISTANCE VIRULENCE ZEA MAYS AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Bacterioses Mycoplasmatales Methods Mexico MAIZE SPIROPLASMA ELISA DISEASE RESISTANCE VIRULENCE ZEA MAYS Bajet, N.B. Renfro, B.L. Occurence of corn stunt spiroplasma at different elevations in Mexico |
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A survey of Spiroplasma kunkelii, or corn stunt spiroplasma (CSS), was conducted in Mexico from October 1985 to March 1988 using phase contrast or dark field light microscopy (DFM) and enzyme-linked immunosorbent assay (ELISA). Three types of symptoms were observed: consistently stunted plants whose leaves had well-defined broad chlorotic streaking and that were usually observed at 60–940 m above sea level, plants that were not always stunted but whose leaf margins showed red to purple streaks, and plants that usually were not stunted but whose leaves showed either a diffuse yellow or a chlorotic stripe condition with or without red margins. Both the second and third symptom types were observed at all elevations surveyed and usually appeared around 7 days before or after anthesis. ELISA was better than DFM at detecting CSS, but both methods demonstrated that all samples with the first type of symptom, 51–70% of those with the second type, 43–46% of those with the third type, and 3–11% of those without symptoms were infected with CSS. The disease was more prevalent at lower than at higher elevations. These results indicate high prevalence and wide distribution of CSS in Mexico and also confirm that maize plants having reddish or purplish leaves are often infected with CSS. |
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Article |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Bacterioses Mycoplasmatales Methods Mexico MAIZE SPIROPLASMA ELISA DISEASE RESISTANCE VIRULENCE ZEA MAYS |
author |
Bajet, N.B. Renfro, B.L. |
author_facet |
Bajet, N.B. Renfro, B.L. |
author_sort |
Bajet, N.B. |
title |
Occurence of corn stunt spiroplasma at different elevations in Mexico |
title_short |
Occurence of corn stunt spiroplasma at different elevations in Mexico |
title_full |
Occurence of corn stunt spiroplasma at different elevations in Mexico |
title_fullStr |
Occurence of corn stunt spiroplasma at different elevations in Mexico |
title_full_unstemmed |
Occurence of corn stunt spiroplasma at different elevations in Mexico |
title_sort |
occurence of corn stunt spiroplasma at different elevations in mexico |
publisher |
American Phytopathological Society (APS) |
publishDate |
1989 |
url |
http://hdl.handle.net/10883/1930 |
work_keys_str_mv |
AT bajetnb occurenceofcornstuntspiroplasmaatdifferentelevationsinmexico AT renfrobl occurenceofcornstuntspiroplasmaatdifferentelevationsinmexico |
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