Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Rodriguésia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602018000402153 |
Resumo: | Abstract Some exotic species threat the integrity of natural environments due to their invasive potential. They can affect other species by releasing secondary compounds in the soil. Morus nigra (Moraceae) is an invasive species of riparian forests in southern Brazil. The objective of this study was to verify if the aqueous extracts of fruit, fresh and dry leaves of M. nigra show phytotoxic effects on germination, seedling growth and membrane integrity of seedlings of Lactuca sativa. Extract concentrations of 0.1, 0.25, 0.5, 0.75, 1, 2.5, 5, 7.5 and 10% were tested. Germination rate and speed of germination were determined. Effects on initial growth were evaluated by measuring seedling root and shoot length, and membrane integrity was assessed by conductivity tests. Results showed the phytotoxicity of M. nigra aqueous extracts, causing significant inhibition on germination and seedling growth. The fruit extract was generally less phytotoxic than extracts from fresh and dry leaves. Moreover, the extracts induced changes in membrane integrity and caused morphological deformities in seedlings, such as necrotic roots and chlorotic plants. The high phytotoxicity of fruit, dry and fresh leaf extracts of M. nigra was evidenced, indicating the allelopathic potential of the species. |
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Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativaallelopathyinvasive speciesmembrane integrityphenolicsAbstract Some exotic species threat the integrity of natural environments due to their invasive potential. They can affect other species by releasing secondary compounds in the soil. Morus nigra (Moraceae) is an invasive species of riparian forests in southern Brazil. The objective of this study was to verify if the aqueous extracts of fruit, fresh and dry leaves of M. nigra show phytotoxic effects on germination, seedling growth and membrane integrity of seedlings of Lactuca sativa. Extract concentrations of 0.1, 0.25, 0.5, 0.75, 1, 2.5, 5, 7.5 and 10% were tested. Germination rate and speed of germination were determined. Effects on initial growth were evaluated by measuring seedling root and shoot length, and membrane integrity was assessed by conductivity tests. Results showed the phytotoxicity of M. nigra aqueous extracts, causing significant inhibition on germination and seedling growth. The fruit extract was generally less phytotoxic than extracts from fresh and dry leaves. Moreover, the extracts induced changes in membrane integrity and caused morphological deformities in seedlings, such as necrotic roots and chlorotic plants. The high phytotoxicity of fruit, dry and fresh leaf extracts of M. nigra was evidenced, indicating the allelopathic potential of the species.Instituto de Pesquisas Jardim Botânico do Rio de Janeiro2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602018000402153Rodriguésia v.69 n.4 2018reponame:Rodriguésia (Online)instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)instacron:JBRJ10.1590/2175-7860201869443info:eu-repo/semantics/openAccessVieira,Letícia RodriguesSilva,Eliane Regina daSoares,Geraldo Luiz GonçalvesFior,Claudimar SidneiEthur,Eduardo MirandaHoehne,LucéliaFreitas,Elisete Maria deeng2018-12-14T00:00:00Zoai:scielo:S2175-78602018000402153Revistahttp://rodriguesia.jbrj.gov.br/https://old.scielo.br/oai/scielo-oai.phprodriguesia@jbrj.gov.br2175-78600370-6583opendoar:2018-12-14T00:00Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)false |
dc.title.none.fl_str_mv |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
title |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
spellingShingle |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa Vieira,Letícia Rodrigues allelopathy invasive species membrane integrity phenolics |
title_short |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
title_full |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
title_fullStr |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
title_full_unstemmed |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
title_sort |
Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa |
author |
Vieira,Letícia Rodrigues |
author_facet |
Vieira,Letícia Rodrigues Silva,Eliane Regina da Soares,Geraldo Luiz Gonçalves Fior,Claudimar Sidnei Ethur,Eduardo Miranda Hoehne,Lucélia Freitas,Elisete Maria de |
author_role |
author |
author2 |
Silva,Eliane Regina da Soares,Geraldo Luiz Gonçalves Fior,Claudimar Sidnei Ethur,Eduardo Miranda Hoehne,Lucélia Freitas,Elisete Maria de |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Vieira,Letícia Rodrigues Silva,Eliane Regina da Soares,Geraldo Luiz Gonçalves Fior,Claudimar Sidnei Ethur,Eduardo Miranda Hoehne,Lucélia Freitas,Elisete Maria de |
dc.subject.por.fl_str_mv |
allelopathy invasive species membrane integrity phenolics |
topic |
allelopathy invasive species membrane integrity phenolics |
description |
Abstract Some exotic species threat the integrity of natural environments due to their invasive potential. They can affect other species by releasing secondary compounds in the soil. Morus nigra (Moraceae) is an invasive species of riparian forests in southern Brazil. The objective of this study was to verify if the aqueous extracts of fruit, fresh and dry leaves of M. nigra show phytotoxic effects on germination, seedling growth and membrane integrity of seedlings of Lactuca sativa. Extract concentrations of 0.1, 0.25, 0.5, 0.75, 1, 2.5, 5, 7.5 and 10% were tested. Germination rate and speed of germination were determined. Effects on initial growth were evaluated by measuring seedling root and shoot length, and membrane integrity was assessed by conductivity tests. Results showed the phytotoxicity of M. nigra aqueous extracts, causing significant inhibition on germination and seedling growth. The fruit extract was generally less phytotoxic than extracts from fresh and dry leaves. Moreover, the extracts induced changes in membrane integrity and caused morphological deformities in seedlings, such as necrotic roots and chlorotic plants. The high phytotoxicity of fruit, dry and fresh leaf extracts of M. nigra was evidenced, indicating the allelopathic potential of the species. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 |
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=S2175-78602018000402153 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602018000402153 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2175-7860201869443 |
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 de Pesquisas Jardim Botânico do Rio de Janeiro |
publisher.none.fl_str_mv |
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro |
dc.source.none.fl_str_mv |
Rodriguésia v.69 n.4 2018 reponame:Rodriguésia (Online) instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ) instacron:JBRJ |
instname_str |
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ) |
instacron_str |
JBRJ |
institution |
JBRJ |
reponame_str |
Rodriguésia (Online) |
collection |
Rodriguésia (Online) |
repository.name.fl_str_mv |
Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ) |
repository.mail.fl_str_mv |
rodriguesia@jbrj.gov.br |
_version_ |
1752128673551482880 |