THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp.
The objective of this work was to identify the time of the thermal shock that promotes the greater release of zoospores/sporangia. The experiments were carried out with five treatments, varying the thermal variation time (20', 30', 40', 50' and 60') of sporangia suspension o...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Mato Grosso do Sul
2018-04-01
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| Series: | Revista de Agricultura Neotropical |
| Online Access: | https://periodicosonline.uems.br/index.php/agrineo/article/view/1634 |
| _version_ | 1818458265402474496 |
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| author | Rafaela Souza Alves Fonseca Paula Rodrigues Neves Natanael Marcos Lemes Jennifer Decloquement Milton Luiz da Paz Lima |
| author_facet | Rafaela Souza Alves Fonseca Paula Rodrigues Neves Natanael Marcos Lemes Jennifer Decloquement Milton Luiz da Paz Lima |
| author_sort | Rafaela Souza Alves Fonseca |
| collection | DOAJ |
| description | The objective of this work was to identify the time of the thermal shock that promotes the greater release of zoospores/sporangia. The experiments were carried out with five treatments, varying the thermal variation time (20', 30', 40', 50' and 60') of sporangia suspension of 7.105 sporangia mL-1 under 5 °C temperature. The incidence of sporangia germinated by 20 times whose It was evaluated100 units at random, using an optical microscope at 40 times magnification. The F and Tukey test were used to compare the means. The sexual phase (presence of oospores) was identified in the isolate derived from purslane. In purslane leaves (infected by Albugo portulacae) the time of 20-30' promoted a greater number of zoospores released, whereas for the isolate from amarantus (infected by A. bliti) the time of 30’ promoted statistically the highest release of zoospores; for the isolate from leaves of “jetirana” (infected by A. ipomoeae-panduratae) the time of 30-50’ promoted greater release of zoospores; and finally the isolate from “onze-horas” leaves (infected by A. portulacae) the time of 30-40’ statistically promoted the highest percentage of release of zoospores, It was demonstrating a differential behavior per host in the release of zoospores. The thermal shock time that promoted the highest amount of released zoospores (38 %) was observed for the purslane-Albugo portulacae and “onze horas”-A. portulacae pathosystem. |
| first_indexed | 2024-12-14T22:55:43Z |
| format | Article |
| id | doaj.art-ce514397d9244f5693fdf24c60fab9f2 |
| institution | Directory Open Access Journal |
| issn | 2358-6303 |
| language | English |
| last_indexed | 2024-12-14T22:55:43Z |
| publishDate | 2018-04-01 |
| publisher | Universidade Estadual de Mato Grosso do Sul |
| record_format | Article |
| series | Revista de Agricultura Neotropical |
| spelling | doaj.art-ce514397d9244f5693fdf24c60fab9f22022-12-21T22:44:36ZengUniversidade Estadual de Mato Grosso do SulRevista de Agricultura Neotropical2358-63032018-04-0151879010.32404/rean.v5i1.16341849THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp.Rafaela Souza Alves Fonseca0Paula Rodrigues Neves1Natanael Marcos Lemes2Jennifer Decloquement3Milton Luiz da Paz Lima4Instituto Federal Goiano campus Urutaí Rod. Geraldo Silva Nascimento, km 2,5 CEP 75790-000 Urutaí, GOInstituto Federal Goiano campus Urutaí Rod. Geraldo Silva Nascimento, km 2,5 CEP 75790-000 Urutaí, GOInstituto Federal Goiano campus Urutaí Rod. Geraldo Silva Nascimento, km 2,5 CEP 75790-000 Urutaí, GOInstitut Universitaire de Technologie de Béthune - 1230 rue de l'Université - CS 20819 - 62408 Béthune Cédex, FranceInstituto Federal Goiano campus UrutaíThe objective of this work was to identify the time of the thermal shock that promotes the greater release of zoospores/sporangia. The experiments were carried out with five treatments, varying the thermal variation time (20', 30', 40', 50' and 60') of sporangia suspension of 7.105 sporangia mL-1 under 5 °C temperature. The incidence of sporangia germinated by 20 times whose It was evaluated100 units at random, using an optical microscope at 40 times magnification. The F and Tukey test were used to compare the means. The sexual phase (presence of oospores) was identified in the isolate derived from purslane. In purslane leaves (infected by Albugo portulacae) the time of 20-30' promoted a greater number of zoospores released, whereas for the isolate from amarantus (infected by A. bliti) the time of 30’ promoted statistically the highest release of zoospores; for the isolate from leaves of “jetirana” (infected by A. ipomoeae-panduratae) the time of 30-50’ promoted greater release of zoospores; and finally the isolate from “onze-horas” leaves (infected by A. portulacae) the time of 30-40’ statistically promoted the highest percentage of release of zoospores, It was demonstrating a differential behavior per host in the release of zoospores. The thermal shock time that promoted the highest amount of released zoospores (38 %) was observed for the purslane-Albugo portulacae and “onze horas”-A. portulacae pathosystem.https://periodicosonline.uems.br/index.php/agrineo/article/view/1634 |
| spellingShingle | Rafaela Souza Alves Fonseca Paula Rodrigues Neves Natanael Marcos Lemes Jennifer Decloquement Milton Luiz da Paz Lima THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. Revista de Agricultura Neotropical |
| title | THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. |
| title_full | THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. |
| title_fullStr | THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. |
| title_full_unstemmed | THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. |
| title_short | THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. |
| title_sort | thermal variation for growth of zoospores of albugo spp |
| url | https://periodicosonline.uems.br/index.php/agrineo/article/view/1634 |
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