REVISTA DE AGRICULTURA NEOTROPICAL
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Vol. 5 No. 1 (2018): REVISTA DE AGRICULTURA NEOTROPICAL /
Scientific Note
THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp.
Rafaela Souza Alves Fonseca Instituto Federal Goiano campus Urutaí Rod. Geraldo Silva Nascimento, km 2,5 CEP 75790-000 Urutaí, GO
Paula Rodrigues Neves Instituto Federal Goiano campus Urutaí Rod. Geraldo Silva Nascimento, km 2,5 CEP 75790-000 Urutaí, GO
Natanael Marcos Lemes Instituto Federal Goiano campus Urutaí Rod. Geraldo Silva Nascimento, km 2,5 CEP 75790-000 Urutaí, GO
Jennifer Decloquement Institut Universitaire de Technologie de Béthune - 1230 rue de l'Université - CS 20819 - 62408 Béthune Cédex, France
Milton Luiz da Paz Lima Instituto Federal Goiano campus Urutaí http://orcid.org/0000-0003-3537-550X
https://doi.org/10.32404/rean.v5i1.1634
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.
Milton Luiz da Paz Lima, Instituto Federal Goiano campus Urutaí
Possui graduação em Agronomia pela Universidade Federal do Paraná (1999) e mestrado em Fitopatologia pela Universidade de Brasília (2002), concluiu o doutorado em 2006 no programa de pós-graduação em Fitopatologia também pela Universidade de Brasília, no primeiro semestre de 2009 finalizou o pós-doutorado na área de fitopatologia Molecular, 2011 Cursou na Holanda o curso Fungal Biodiversity, e atualmente é professor dedicação exclusiva do Instituto Federal Goiano. Possui experiência na área de Agronomia, com ênfase em Fitopatologia, atuando principalmente nos seguintes temas: micologia, ocorrência, identificação, etiologia, diagnose, epidemiologia, resistência de plantas a doenças, controle de doenças e caracterização de fitopatógenos.
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PDF (Português (Brasil))
Fonseca, R. S. A., Neves, P. R., Lemes, N. M., Decloquement, J., & Lima, M. L. da P. (2018). THERMAL VARIATION FOR GROWTH OF ZOOSPORES OF Albugo spp. REVISTA DE AGRICULTURA NEOTROPICAL, 5(1), 87–90. https://doi.org/10.32404/rean.v5i1.1634
Vol. 5 No. 1 (2018): REVISTA DE AGRICULTURA NEOTROPICAL
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