Germination temperatures affect the physiological quality of seeds of lettuce cultivars

Detalhes bibliográficos
Autor(a) principal: Almeida, Fernando Araújo de
Data de Publicação: 2019
Outros Autores: Silva-Mann, Renata, Santos, Heloisa Oliveira dos, Pereira, Rucyan Walace, Blank, Arie Fitzgerald
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/41585
Resumo: The objective of this study was to evaluate the physiological quality allied to biochemical quality of lettuce seeds by germination and enzymes expression at 20, 25, 30, 35, 40 and 42ºC. Germination speed index and percentage of germination were estimated. Isoenzyme expressions were assessed by alcohol dehydrogenase (ADH), malate dehydrogenase (MDH), catalase (CAT), esterase (EST), pyruvate decarboxylase (PDC) and glutamate oxaloacetate transferase (GOT). The experiment consisted of a completely randomized design in a factorial scheme 4x6, with four cultivars and six different temperatures, with four replications. The highest germination and vigor were observed for cv. ‘Everglades’ at 35°C, which proved that this cultivar is thermotolerant. Catalase can be considered a genetic marker for the identification of thermotolerant lettuce cultivars. Cultivar ‘Everglades’ has potential to be used in lettuce breeding programs aimed at cultivars tolerant to high temperatures during germination.
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spelling Germination temperatures affect the physiological quality of seeds of lettuce cultivarsQualidade fisiológica de sementes de alface sob diferentes temperaturas na germinaçãoLactuca sativa L.IsoenzymesThermotoleranceEsteraseCatalaseAlcohol dehydrogenaseAlface - QualidadeIsoenzimasTermotolerânciaÁlcool desidrogenaseThe objective of this study was to evaluate the physiological quality allied to biochemical quality of lettuce seeds by germination and enzymes expression at 20, 25, 30, 35, 40 and 42ºC. Germination speed index and percentage of germination were estimated. Isoenzyme expressions were assessed by alcohol dehydrogenase (ADH), malate dehydrogenase (MDH), catalase (CAT), esterase (EST), pyruvate decarboxylase (PDC) and glutamate oxaloacetate transferase (GOT). The experiment consisted of a completely randomized design in a factorial scheme 4x6, with four cultivars and six different temperatures, with four replications. The highest germination and vigor were observed for cv. ‘Everglades’ at 35°C, which proved that this cultivar is thermotolerant. Catalase can be considered a genetic marker for the identification of thermotolerant lettuce cultivars. Cultivar ‘Everglades’ has potential to be used in lettuce breeding programs aimed at cultivars tolerant to high temperatures during germination.O objetivo deste estudo foi avaliar a qualidade fisiológica e bioquímica de sementes de alface por meio da germinação e expressão de enzimas a 20, 25, 30, 35, 40 e 42ºC. As variáveis velocidade de germinação e o índice de velocidade de germinação foram estimadas. As expressões das enzimas alcool desidrogenase (ADH), malato desidrogenase (MDH), catalase (CAT), esterase (EST), piruvate descarboxilase (PDC) e glutamato oxaloacetato transferase (GOT) foram avaliadas. Para análise dos genótipos foi empregado o delineamento inteiramente casualizado em esquema fatorial 4x6, testando quatro cultivares e seis diferentes temperaturas, com quatro repetições. A maior germinação e vigor foram observadas para a cv. ‘Everglades’ a 35°C, o que prova que esta cultivar é termotolerante. A catalase pode ser considerada um marcador para a identificação de cultivares de alface termotolerantes. A cultivar ‘Everglades’ tem potential para uso em programas de melhoramento visando tolerância à alta temperatura durante a germinação.Universidade Federal de Uberlândia2020-06-26T18:12:13Z2020-06-26T18:12:13Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfALMEIDA, F. A. de et al. Germination temperatures affect the physiological quality of seeds of lettuce cultivars. Bioscience Journal, Uberlândia, v. 35, n. 4, p. 1143-1152, jul./ago. 2019.http://repositorio.ufla.br/jspui/handle/1/41585Bioscience Journalreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessAlmeida, Fernando Araújo deSilva-Mann, RenataSantos, Heloisa Oliveira dosPereira, Rucyan WalaceBlank, Arie Fitzgeraldeng2023-05-26T18:57:06Zoai:localhost:1/41585Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:57:06Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Germination temperatures affect the physiological quality of seeds of lettuce cultivars
Qualidade fisiológica de sementes de alface sob diferentes temperaturas na germinação
title Germination temperatures affect the physiological quality of seeds of lettuce cultivars
spellingShingle Germination temperatures affect the physiological quality of seeds of lettuce cultivars
Almeida, Fernando Araújo de
Lactuca sativa L.
Isoenzymes
Thermotolerance
Esterase
Catalase
Alcohol dehydrogenase
Alface - Qualidade
Isoenzimas
Termotolerância
Álcool desidrogenase
title_short Germination temperatures affect the physiological quality of seeds of lettuce cultivars
title_full Germination temperatures affect the physiological quality of seeds of lettuce cultivars
title_fullStr Germination temperatures affect the physiological quality of seeds of lettuce cultivars
title_full_unstemmed Germination temperatures affect the physiological quality of seeds of lettuce cultivars
title_sort Germination temperatures affect the physiological quality of seeds of lettuce cultivars
author Almeida, Fernando Araújo de
author_facet Almeida, Fernando Araújo de
Silva-Mann, Renata
Santos, Heloisa Oliveira dos
Pereira, Rucyan Walace
Blank, Arie Fitzgerald
author_role author
author2 Silva-Mann, Renata
Santos, Heloisa Oliveira dos
Pereira, Rucyan Walace
Blank, Arie Fitzgerald
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Almeida, Fernando Araújo de
Silva-Mann, Renata
Santos, Heloisa Oliveira dos
Pereira, Rucyan Walace
Blank, Arie Fitzgerald
dc.subject.por.fl_str_mv Lactuca sativa L.
Isoenzymes
Thermotolerance
Esterase
Catalase
Alcohol dehydrogenase
Alface - Qualidade
Isoenzimas
Termotolerância
Álcool desidrogenase
topic Lactuca sativa L.
Isoenzymes
Thermotolerance
Esterase
Catalase
Alcohol dehydrogenase
Alface - Qualidade
Isoenzimas
Termotolerância
Álcool desidrogenase
description The objective of this study was to evaluate the physiological quality allied to biochemical quality of lettuce seeds by germination and enzymes expression at 20, 25, 30, 35, 40 and 42ºC. Germination speed index and percentage of germination were estimated. Isoenzyme expressions were assessed by alcohol dehydrogenase (ADH), malate dehydrogenase (MDH), catalase (CAT), esterase (EST), pyruvate decarboxylase (PDC) and glutamate oxaloacetate transferase (GOT). The experiment consisted of a completely randomized design in a factorial scheme 4x6, with four cultivars and six different temperatures, with four replications. The highest germination and vigor were observed for cv. ‘Everglades’ at 35°C, which proved that this cultivar is thermotolerant. Catalase can be considered a genetic marker for the identification of thermotolerant lettuce cultivars. Cultivar ‘Everglades’ has potential to be used in lettuce breeding programs aimed at cultivars tolerant to high temperatures during germination.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020-06-26T18:12:13Z
2020-06-26T18:12:13Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv ALMEIDA, F. A. de et al. Germination temperatures affect the physiological quality of seeds of lettuce cultivars. Bioscience Journal, Uberlândia, v. 35, n. 4, p. 1143-1152, jul./ago. 2019.
http://repositorio.ufla.br/jspui/handle/1/41585
identifier_str_mv ALMEIDA, F. A. de et al. Germination temperatures affect the physiological quality of seeds of lettuce cultivars. Bioscience Journal, Uberlândia, v. 35, n. 4, p. 1143-1152, jul./ago. 2019.
url http://repositorio.ufla.br/jspui/handle/1/41585
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Uberlândia
publisher.none.fl_str_mv Universidade Federal de Uberlândia
dc.source.none.fl_str_mv Bioscience Journal
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1807835076282548224

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