Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers

Detalhes bibliográficos
Autor(a) principal: Costa,Lucas Cavalcante da
Data de Publicação: 2016
Outros Autores: Araujo,Fernanda Ferreira de, Lima,Paula Cristina Carvalho, Pereira,Ariana Mota, Finger,Fernando Luiz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Bragantia
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400377
Resumo: ABSTRACT The gladiolus flower is classified as insensitive to ethylene. Thus, the signals that initiate senescence are poorly understood. This study evaluated the role of abscisic and gibberellic acids on postharvest senescence of 3 cultivars of cut gladiolus flowers (Gladiolus grandiflora Hort.). Stalks were harvested and placed in test tube containing 100 mL distilled water or an aqueous solution of abscisic acid (100 and 150 µM ABA), gibberellic acid (100 µM GA3), and fluridone (1 mM) for 24 h. Subsequently, flower stalks were placed in a test tube with distilled water, and the following variables were determined: stem longevity, fresh weight change, water uptake rate and transpiration rate during the vase life, as well as membrane stability index and lipid peroxidation in 5 stages of flower development. In another experiment, the florets were removed by cutting down the pedicel. After removal, florets were placed in a beaker containing 10 mL distilled water or the following solutions: 100 or 150 µM ABA; 100 µM GA3; 1 mM fluridone; and 100 µM ABA + 100 µM GA3, followed by immersion in distilled water after 24 h in each treatment. Fresh weight change and transpiration rate of florets were assessed every 24 h. Abscisic acid is involved in the induction of senescence-related events in gladiolus flowers, such as high loss of membrane stability and abnormal flower opening. GA3 regulates the action of ABA in the maintenance of cell membrane and opening of gladiolus flowers.
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spelling Action of abscisic and gibberellic acids on senescence of cut gladiolus flowersGladiolus grandiflora Hort.petal senescencehormone signalingfluridoneABSTRACT The gladiolus flower is classified as insensitive to ethylene. Thus, the signals that initiate senescence are poorly understood. This study evaluated the role of abscisic and gibberellic acids on postharvest senescence of 3 cultivars of cut gladiolus flowers (Gladiolus grandiflora Hort.). Stalks were harvested and placed in test tube containing 100 mL distilled water or an aqueous solution of abscisic acid (100 and 150 µM ABA), gibberellic acid (100 µM GA3), and fluridone (1 mM) for 24 h. Subsequently, flower stalks were placed in a test tube with distilled water, and the following variables were determined: stem longevity, fresh weight change, water uptake rate and transpiration rate during the vase life, as well as membrane stability index and lipid peroxidation in 5 stages of flower development. In another experiment, the florets were removed by cutting down the pedicel. After removal, florets were placed in a beaker containing 10 mL distilled water or the following solutions: 100 or 150 µM ABA; 100 µM GA3; 1 mM fluridone; and 100 µM ABA + 100 µM GA3, followed by immersion in distilled water after 24 h in each treatment. Fresh weight change and transpiration rate of florets were assessed every 24 h. Abscisic acid is involved in the induction of senescence-related events in gladiolus flowers, such as high loss of membrane stability and abnormal flower opening. GA3 regulates the action of ABA in the maintenance of cell membrane and opening of gladiolus flowers.Instituto Agronômico de Campinas2016-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400377Bragantia v.75 n.4 2016reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/1678-4499.361info:eu-repo/semantics/openAccessCosta,Lucas Cavalcante daAraujo,Fernanda Ferreira deLima,Paula Cristina CarvalhoPereira,Ariana MotaFinger,Fernando Luizeng2016-10-25T00:00:00Zoai:scielo:S0006-87052016000400377Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2016-10-25T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false
dc.title.none.fl_str_mv Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
title Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
spellingShingle Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
Costa,Lucas Cavalcante da
Gladiolus grandiflora Hort.
petal senescence
hormone signaling
fluridone
title_short Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
title_full Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
title_fullStr Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
title_full_unstemmed Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
title_sort Action of abscisic and gibberellic acids on senescence of cut gladiolus flowers
author Costa,Lucas Cavalcante da
author_facet Costa,Lucas Cavalcante da
Araujo,Fernanda Ferreira de
Lima,Paula Cristina Carvalho
Pereira,Ariana Mota
Finger,Fernando Luiz
author_role author
author2 Araujo,Fernanda Ferreira de
Lima,Paula Cristina Carvalho
Pereira,Ariana Mota
Finger,Fernando Luiz
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Costa,Lucas Cavalcante da
Araujo,Fernanda Ferreira de
Lima,Paula Cristina Carvalho
Pereira,Ariana Mota
Finger,Fernando Luiz
dc.subject.por.fl_str_mv Gladiolus grandiflora Hort.
petal senescence
hormone signaling
fluridone
topic Gladiolus grandiflora Hort.
petal senescence
hormone signaling
fluridone
description ABSTRACT The gladiolus flower is classified as insensitive to ethylene. Thus, the signals that initiate senescence are poorly understood. This study evaluated the role of abscisic and gibberellic acids on postharvest senescence of 3 cultivars of cut gladiolus flowers (Gladiolus grandiflora Hort.). Stalks were harvested and placed in test tube containing 100 mL distilled water or an aqueous solution of abscisic acid (100 and 150 µM ABA), gibberellic acid (100 µM GA3), and fluridone (1 mM) for 24 h. Subsequently, flower stalks were placed in a test tube with distilled water, and the following variables were determined: stem longevity, fresh weight change, water uptake rate and transpiration rate during the vase life, as well as membrane stability index and lipid peroxidation in 5 stages of flower development. In another experiment, the florets were removed by cutting down the pedicel. After removal, florets were placed in a beaker containing 10 mL distilled water or the following solutions: 100 or 150 µM ABA; 100 µM GA3; 1 mM fluridone; and 100 µM ABA + 100 µM GA3, followed by immersion in distilled water after 24 h in each treatment. Fresh weight change and transpiration rate of florets were assessed every 24 h. Abscisic acid is involved in the induction of senescence-related events in gladiolus flowers, such as high loss of membrane stability and abnormal flower opening. GA3 regulates the action of ABA in the maintenance of cell membrane and opening of gladiolus flowers.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400377
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400377
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4499.361
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Agronômico de Campinas
publisher.none.fl_str_mv Instituto Agronômico de Campinas
dc.source.none.fl_str_mv Bragantia v.75 n.4 2016
reponame:Bragantia
instname:Instituto Agronômico de Campinas (IAC)
instacron:IAC
instname_str Instituto Agronômico de Campinas (IAC)
instacron_str IAC
institution IAC
reponame_str Bragantia
collection Bragantia
repository.name.fl_str_mv Bragantia - Instituto Agronômico de Campinas (IAC)
repository.mail.fl_str_mv bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br
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