Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of Seed Science |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372015000100016 |
Resumo: | The aim of this study was to identify the phases of water absorption during germination of Carica papaya seeds and evaluate the influence of alternating temperature and accelerated aging on mobilization of reserves during germination. Weight gain was evaluated, obtaining the imbibition curve. Phase I of germination comprises the period from zero to five hours; phase II, from five to 120 hours; and phase III begins after 144 hours. Seeds were subjected to the germination test under temperatures of 25 ºC and of 20-30 ºC (16/8 h), and before and after accelerated aging (43 °C / 72 h). During the germination test, at initial time, after 4, 10, 120, and 240 hours of soaking, we determined the levels of soluble sugars, starch, lipids, and total proteins. Greater germination was observed under alternating temperature. Under this condition, there is reduction of carbohydrates, lipids, and proteins in phase I, and fluctuations in lipid levels, and an increase in protein levels during phases II and III. Mobilization of lipids in papaya seeds is not influenced by accelerated aging, but the seeds subjected to aging have lower protein content in phase III. |
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Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seedssoakingpapayasoluble sugarsstarchlipidsproteinsThe aim of this study was to identify the phases of water absorption during germination of Carica papaya seeds and evaluate the influence of alternating temperature and accelerated aging on mobilization of reserves during germination. Weight gain was evaluated, obtaining the imbibition curve. Phase I of germination comprises the period from zero to five hours; phase II, from five to 120 hours; and phase III begins after 144 hours. Seeds were subjected to the germination test under temperatures of 25 ºC and of 20-30 ºC (16/8 h), and before and after accelerated aging (43 °C / 72 h). During the germination test, at initial time, after 4, 10, 120, and 240 hours of soaking, we determined the levels of soluble sugars, starch, lipids, and total proteins. Greater germination was observed under alternating temperature. Under this condition, there is reduction of carbohydrates, lipids, and proteins in phase I, and fluctuations in lipid levels, and an increase in protein levels during phases II and III. Mobilization of lipids in papaya seeds is not influenced by accelerated aging, but the seeds subjected to aging have lower protein content in phase III.ABRATES - Associação Brasileira de Tecnologia de Sementes2015-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372015000100016Journal of Seed Science v.37 n.1 2015reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/2317-1545v37n1140154info:eu-repo/semantics/openAccessMengarda,Liana Hilda GolinLopes,José CarlosAlexandre,Rodrigo SobreiraZanotti,Rafael FonsêcaManhone,Pedro Ramoneng2015-04-14T00:00:00Zoai:scielo:S2317-15372015000100016Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2015-04-14T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false |
dc.title.none.fl_str_mv |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
title |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
spellingShingle |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds Mengarda,Liana Hilda Golin soaking papaya soluble sugars starch lipids proteins |
title_short |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
title_full |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
title_fullStr |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
title_full_unstemmed |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
title_sort |
Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds |
author |
Mengarda,Liana Hilda Golin |
author_facet |
Mengarda,Liana Hilda Golin Lopes,José Carlos Alexandre,Rodrigo Sobreira Zanotti,Rafael Fonsêca Manhone,Pedro Ramon |
author_role |
author |
author2 |
Lopes,José Carlos Alexandre,Rodrigo Sobreira Zanotti,Rafael Fonsêca Manhone,Pedro Ramon |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Mengarda,Liana Hilda Golin Lopes,José Carlos Alexandre,Rodrigo Sobreira Zanotti,Rafael Fonsêca Manhone,Pedro Ramon |
dc.subject.por.fl_str_mv |
soaking papaya soluble sugars starch lipids proteins |
topic |
soaking papaya soluble sugars starch lipids proteins |
description |
The aim of this study was to identify the phases of water absorption during germination of Carica papaya seeds and evaluate the influence of alternating temperature and accelerated aging on mobilization of reserves during germination. Weight gain was evaluated, obtaining the imbibition curve. Phase I of germination comprises the period from zero to five hours; phase II, from five to 120 hours; and phase III begins after 144 hours. Seeds were subjected to the germination test under temperatures of 25 ºC and of 20-30 ºC (16/8 h), and before and after accelerated aging (43 °C / 72 h). During the germination test, at initial time, after 4, 10, 120, and 240 hours of soaking, we determined the levels of soluble sugars, starch, lipids, and total proteins. Greater germination was observed under alternating temperature. Under this condition, there is reduction of carbohydrates, lipids, and proteins in phase I, and fluctuations in lipid levels, and an increase in protein levels during phases II and III. Mobilization of lipids in papaya seeds is not influenced by accelerated aging, but the seeds subjected to aging have lower protein content in phase III. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03-01 |
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=S2317-15372015000100016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372015000100016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2317-1545v37n1140154 |
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 |
ABRATES - Associação Brasileira de Tecnologia de Sementes |
publisher.none.fl_str_mv |
ABRATES - Associação Brasileira de Tecnologia de Sementes |
dc.source.none.fl_str_mv |
Journal of Seed Science v.37 n.1 2015 reponame:Journal of Seed Science instname:Associação Brasileira de Tecnologia de Sementes (ABRATES) instacron:ABRATES |
instname_str |
Associação Brasileira de Tecnologia de Sementes (ABRATES) |
instacron_str |
ABRATES |
institution |
ABRATES |
reponame_str |
Journal of Seed Science |
collection |
Journal of Seed Science |
repository.name.fl_str_mv |
Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES) |
repository.mail.fl_str_mv |
||abrates@abrates.org.br |
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1754212982026403840 |