Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.5/22069 |
Resumo: | In this study, the effect of different concentrations of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth at an early stage of two lettuce cultivars (one with green and the other with red leaves) was evaluated. The inhibitory effects of these metals on germination rate, viable seedlings, shoot and root biomass, root length, seedling vigor and root tolerance index was determined. Globally, a decrease was observed in these variables with increasing concentrations of the metals. The present results indicate that seedling growth was more sensitive than germination. Lactuca sativa seeds were usually tolerant for all metals during the germination process and this probably occurred due to barrier effect of seed coat that prevented the metals to come in contact with the developing embryo. The inhibitory effects of these metals on seedling growth varied. In general, the presence of low Ni and Cr concentrations stimulated the growth of green leaf lettuce seedlings. Low concentrations of Zn promoted the growth of red-leaf lettuce which is less tolerant to Cd. In this study it was verified that Lactuca sativa seedlings can survive in contaminated media, however, it was more sensitive to Cd and Cu and tolerant to Mn. |
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Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.)heavy metalscadmiumcopperlettuceessential elementsnon-essential elementsIn this study, the effect of different concentrations of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth at an early stage of two lettuce cultivars (one with green and the other with red leaves) was evaluated. The inhibitory effects of these metals on germination rate, viable seedlings, shoot and root biomass, root length, seedling vigor and root tolerance index was determined. Globally, a decrease was observed in these variables with increasing concentrations of the metals. The present results indicate that seedling growth was more sensitive than germination. Lactuca sativa seeds were usually tolerant for all metals during the germination process and this probably occurred due to barrier effect of seed coat that prevented the metals to come in contact with the developing embryo. The inhibitory effects of these metals on seedling growth varied. In general, the presence of low Ni and Cr concentrations stimulated the growth of green leaf lettuce seedlings. Low concentrations of Zn promoted the growth of red-leaf lettuce which is less tolerant to Cd. In this study it was verified that Lactuca sativa seedlings can survive in contaminated media, however, it was more sensitive to Cd and Cu and tolerant to Mn.Repositório da Universidade de LisboaMoreira, Inês NetoLouro Martins, LuisaMourato, Miguel2021-09-28T11:39:46Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/22069engMoreira I.N., Martins L.L., Mourato M.P. 2020. Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.). Plant Physiology Reports 25(2): 347-358https://doi.org/10.1007/s40502-020-00509-5info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:51:38ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
title |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
spellingShingle |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) Moreira, Inês Neto heavy metals cadmium copper lettuce essential elements non-essential elements |
title_short |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
title_full |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
title_fullStr |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
title_full_unstemmed |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
title_sort |
Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.) |
author |
Moreira, Inês Neto |
author_facet |
Moreira, Inês Neto Louro Martins, Luisa Mourato, Miguel |
author_role |
author |
author2 |
Louro Martins, Luisa Mourato, Miguel |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Moreira, Inês Neto Louro Martins, Luisa Mourato, Miguel |
dc.subject.por.fl_str_mv |
heavy metals cadmium copper lettuce essential elements non-essential elements |
topic |
heavy metals cadmium copper lettuce essential elements non-essential elements |
description |
In this study, the effect of different concentrations of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth at an early stage of two lettuce cultivars (one with green and the other with red leaves) was evaluated. The inhibitory effects of these metals on germination rate, viable seedlings, shoot and root biomass, root length, seedling vigor and root tolerance index was determined. Globally, a decrease was observed in these variables with increasing concentrations of the metals. The present results indicate that seedling growth was more sensitive than germination. Lactuca sativa seeds were usually tolerant for all metals during the germination process and this probably occurred due to barrier effect of seed coat that prevented the metals to come in contact with the developing embryo. The inhibitory effects of these metals on seedling growth varied. In general, the presence of low Ni and Cr concentrations stimulated the growth of green leaf lettuce seedlings. Low concentrations of Zn promoted the growth of red-leaf lettuce which is less tolerant to Cd. In this study it was verified that Lactuca sativa seedlings can survive in contaminated media, however, it was more sensitive to Cd and Cu and tolerant to Mn. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z 2021-09-28T11:39:46Z |
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 |
http://hdl.handle.net/10400.5/22069 |
url |
http://hdl.handle.net/10400.5/22069 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Moreira I.N., Martins L.L., Mourato M.P. 2020. Effect of Cd, Cr, Cu, Mn, Ni, Pb and Zn on seed germination and seedling growth of two lettuce cultivars (Lactuca sativa L.). Plant Physiology Reports 25(2): 347-358 https://doi.org/10.1007/s40502-020-00509-5 |
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.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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