Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11677 |
Resumo: | The work was conducted to evaluate the effect of different Philodendron bipinnatifidum Schott. extract concentrations on the physiology and enzymatic metabolism of lettuce seeds and seedlings. The treatments extracts of mature leaves at concentrations of 0, 6, 12, 25 and 50%. Were evaluated the germination, first count germination, speed and germination speed index, length of shoot and primary root, seedling total dry mass, electrical conductivity, chlorophyll content, activity of the enzymes ?-amilase, superoxide dismutase, catalase and ascorbarto peroxidase, lipid peroxidation, hydrogen peroxide content and seedling emergence, length of shoot and total dry mass of emerged seedlings. There was a reduction of germination, germination speed index and total dry mass by increasing the concentration of the extract. While the content of hydrogen peroxide, lipid peroxidation and activity of superoxide dismutase, catalase and peroxidase ascorbarto increased with concentration. The increasing of concentration the leaf extracts of the P. bipinnatifidum negatively affects the activity of the enzyme ?-amylase and causes increase in the activity of antioxidant enzymes, affecting the physiologic performance and growth of lettuce seedlings. |
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Semina. Ciências Agrárias (Online) |
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Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extractRespostas fisiológicas de sementes e plântulas de alface submetidas ao extrato de Philodendron bipinnatifidumLactuca sativa?-amylasePhotosynthetic pigmentsAntioxidant enzymes.Lactuca sativaa-amilasePigmentos fotossintéticosEnzimas antioxidantes.AgronomiaThe work was conducted to evaluate the effect of different Philodendron bipinnatifidum Schott. extract concentrations on the physiology and enzymatic metabolism of lettuce seeds and seedlings. The treatments extracts of mature leaves at concentrations of 0, 6, 12, 25 and 50%. Were evaluated the germination, first count germination, speed and germination speed index, length of shoot and primary root, seedling total dry mass, electrical conductivity, chlorophyll content, activity of the enzymes ?-amilase, superoxide dismutase, catalase and ascorbarto peroxidase, lipid peroxidation, hydrogen peroxide content and seedling emergence, length of shoot and total dry mass of emerged seedlings. There was a reduction of germination, germination speed index and total dry mass by increasing the concentration of the extract. While the content of hydrogen peroxide, lipid peroxidation and activity of superoxide dismutase, catalase and peroxidase ascorbarto increased with concentration. The increasing of concentration the leaf extracts of the P. bipinnatifidum negatively affects the activity of the enzyme ?-amylase and causes increase in the activity of antioxidant enzymes, affecting the physiologic performance and growth of lettuce seedlings.O trabalho foi conduzido com o objetivo de avaliar o efeito de diferentes concentrações do extrato de Philodendron bipinnatifidum Schott. sobre o desempenho germinativo e o metabolismo enzimático de sementes e plântulas de alface. Os tratamentos foram extratos de folhas maduras nas concentrações 0; 6; 12; 25 e 50%. Foram avaliados a germinação, primeira contagem de germinação, velocidade e índice de velocidade de germinação, comprimento de parte aérea e raiz primária, massa seca total de plântulas, condutividade elétrica, teores de clorofila, atividade das enzimas ?-amilase, superóxido-dismutase, catalase e ascorbarto peroxidase, peroxidação de lipídica, teor de peróxido de hidrogênio e emergência de plântulas, comprimento de parte aérea e da raiz primária e massa seca total das plântulas emergidas. Houve redução da germinação, do índice de velocidade de germinação e da massa seca ao incrementar a concentração do extrato. O teor de peróxido de hidrogênio, a peroxidação de lipídica e a atividade das enzimas superóxido-dismutase, catalase e ascorbarto peroxidase aumentaram com a concentração. O aumento da concentração do extrato de folhas de P. bipinnatifidum afeta negativamente a atividade da enzima ?-amilase e provoca elevação acentuada na atividade das enzimas antioxidantes em plântulas de alface, afetando o desempenho fisiológico de sementes e o crescimento de plântulas de alface.UEL2013-12-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1167710.5433/1679-0359.2013v34n6Supl1p3181Semina: Ciências Agrárias; Vol. 34 No. 6Supl1 (2013); 3181-3192Semina: Ciências Agrárias; v. 34 n. 6Supl1 (2013); 3181-31921679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11677/pdf_59Aumonde, Tiago ZanattaMartinazzo, Emanuela GarbinPedó, TiagoBorella, JuniorAmarante, Luciano doVillela, Francisco AmaralMoraes, Dario Munt deinfo:eu-repo/semantics/openAccess2015-11-19T18:36:11Zoai:ojs.pkp.sfu.ca:article/11677Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:36:11Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract Respostas fisiológicas de sementes e plântulas de alface submetidas ao extrato de Philodendron bipinnatifidum |
title |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract |
spellingShingle |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract Aumonde, Tiago Zanatta Lactuca sativa ?-amylase Photosynthetic pigments Antioxidant enzymes. Lactuca sativa a-amilase Pigmentos fotossintéticos Enzimas antioxidantes. Agronomia |
title_short |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract |
title_full |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract |
title_fullStr |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract |
title_full_unstemmed |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract |
title_sort |
Physiological responses of seeds and seedlings of lettuce submitted to Philodendron bipinnatifidum extract |
author |
Aumonde, Tiago Zanatta |
author_facet |
Aumonde, Tiago Zanatta Martinazzo, Emanuela Garbin Pedó, Tiago Borella, Junior Amarante, Luciano do Villela, Francisco Amaral Moraes, Dario Munt de |
author_role |
author |
author2 |
Martinazzo, Emanuela Garbin Pedó, Tiago Borella, Junior Amarante, Luciano do Villela, Francisco Amaral Moraes, Dario Munt de |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Aumonde, Tiago Zanatta Martinazzo, Emanuela Garbin Pedó, Tiago Borella, Junior Amarante, Luciano do Villela, Francisco Amaral Moraes, Dario Munt de |
dc.subject.por.fl_str_mv |
Lactuca sativa ?-amylase Photosynthetic pigments Antioxidant enzymes. Lactuca sativa a-amilase Pigmentos fotossintéticos Enzimas antioxidantes. Agronomia |
topic |
Lactuca sativa ?-amylase Photosynthetic pigments Antioxidant enzymes. Lactuca sativa a-amilase Pigmentos fotossintéticos Enzimas antioxidantes. Agronomia |
description |
The work was conducted to evaluate the effect of different Philodendron bipinnatifidum Schott. extract concentrations on the physiology and enzymatic metabolism of lettuce seeds and seedlings. The treatments extracts of mature leaves at concentrations of 0, 6, 12, 25 and 50%. Were evaluated the germination, first count germination, speed and germination speed index, length of shoot and primary root, seedling total dry mass, electrical conductivity, chlorophyll content, activity of the enzymes ?-amilase, superoxide dismutase, catalase and ascorbarto peroxidase, lipid peroxidation, hydrogen peroxide content and seedling emergence, length of shoot and total dry mass of emerged seedlings. There was a reduction of germination, germination speed index and total dry mass by increasing the concentration of the extract. While the content of hydrogen peroxide, lipid peroxidation and activity of superoxide dismutase, catalase and peroxidase ascorbarto increased with concentration. The increasing of concentration the leaf extracts of the P. bipinnatifidum negatively affects the activity of the enzyme ?-amylase and causes increase in the activity of antioxidant enzymes, affecting the physiologic performance and growth of lettuce seedlings. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11677 10.5433/1679-0359.2013v34n6Supl1p3181 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11677 |
identifier_str_mv |
10.5433/1679-0359.2013v34n6Supl1p3181 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11677/pdf_59 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 34 No. 6Supl1 (2013); 3181-3192 Semina: Ciências Agrárias; v. 34 n. 6Supl1 (2013); 3181-3192 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306066712854528 |