Germination temperatures affect the physiological quality of seeds of lettuce cultivars

Detalhes bibliográficos
Autor(a) principal: de Almeida, Fernando Araújo
Data de Publicação: 2019
Outros Autores: Silva-Mann, Renata, dos Santos, Heloisa Oliveira, Pereira, Rucyan Walace, Blank, Arie Fitzgerald
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Bioscience journal (Online)
Texto Completo: https://seer.ufu.br/index.php/biosciencejournal/article/view/42196
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 dehydrogenaseAgricultural Sciences 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.    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.EDUFU2019-08-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/4219610.14393/BJ-v35n4a2019-42196Bioscience Journal ; Vol. 35 No. 4 (2019): July/Aug.; 1143-1152Bioscience Journal ; v. 35 n. 4 (2019): July/Aug.; 1143-11521981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/42196/26659Brazil; ContemporaryCopyright (c) 2019 Fernando Araújo de Almeida, Renata Silva-Mann, Heloisa Oliveira dos Santos, Rucyan Walace Pereira, Arie Fitzgerald Blankhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessde Almeida, Fernando AraújoSilva-Mann, Renatados Santos, Heloisa OliveiraPereira, Rucyan WalaceBlank, Arie Fitzgerald2022-01-30T23:38:19Zoai:ojs.www.seer.ufu.br:article/42196Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-01-30T23:38:19Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)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
de Almeida, Fernando Araújo
Lactuca sativa L.
Isoenzymes
Thermotolerance
Esterase
Catalase
Alcohol dehydrogenase
Agricultural Sciences
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 de Almeida, Fernando Araújo
author_facet de Almeida, Fernando Araújo
Silva-Mann, Renata
dos Santos, Heloisa Oliveira
Pereira, Rucyan Walace
Blank, Arie Fitzgerald
author_role author
author2 Silva-Mann, Renata
dos Santos, Heloisa Oliveira
Pereira, Rucyan Walace
Blank, Arie Fitzgerald
author2_role author
author
author
author
dc.contributor.author.fl_str_mv de Almeida, Fernando Araújo
Silva-Mann, Renata
dos Santos, Heloisa Oliveira
Pereira, Rucyan Walace
Blank, Arie Fitzgerald
dc.subject.por.fl_str_mv Lactuca sativa L.
Isoenzymes
Thermotolerance
Esterase
Catalase
Alcohol dehydrogenase
Agricultural Sciences
topic Lactuca sativa L.
Isoenzymes
Thermotolerance
Esterase
Catalase
Alcohol dehydrogenase
Agricultural Sciences
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 2019-08-08
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/42196
10.14393/BJ-v35n4a2019-42196
url https://seer.ufu.br/index.php/biosciencejournal/article/view/42196
identifier_str_mv 10.14393/BJ-v35n4a2019-42196
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/42196/26659
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Brazil; Contemporary
dc.publisher.none.fl_str_mv EDUFU
publisher.none.fl_str_mv EDUFU
dc.source.none.fl_str_mv Bioscience Journal ; Vol. 35 No. 4 (2019): July/Aug.; 1143-1152
Bioscience Journal ; v. 35 n. 4 (2019): July/Aug.; 1143-1152
1981-3163
reponame:Bioscience journal (Online)
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Bioscience journal (Online)
collection Bioscience journal (Online)
repository.name.fl_str_mv Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv biosciencej@ufu.br||
_version_ 1797069079816699904

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