Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Archives of Biology and Technology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000200012 |
Resumo: | Gomphrena macrocephala St.-Hil. (Amaranthaceae) is a perennial herb from the cerrado with medicinal properties and ornamental interest. Plants can be micropropagated through nodal segments, but acclimatization is difficult. The aim of this study was to establish a relationship between anatomical aspects of the roots and the acclimatization process. When cultures were supplemented with IBA, callus and thick and frangible roots appeared at the base of the microcuttings. A fragile vascular connection between roots and shoots was observed. Abnormal adventitious roots showing alteration in the vascular cylinder and hypertrophy of the cortical cells were also noted. These roots interfere in the transfer to extra vitrum conditions. When no growth regulator was used, no callus was formed, the adventitious roots were similar to those found in seedlings, and acclimatization could proceed. The results show that the origin and the structure of roots formed in the microcuttings play an important role in the acclimatization process and thus in the establishment of the micropropagated plants. |
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Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-HilGomphrenaroot anatomyin vitro rootingindol butiric acidvascular connectionGomphrena macrocephala St.-Hil. (Amaranthaceae) is a perennial herb from the cerrado with medicinal properties and ornamental interest. Plants can be micropropagated through nodal segments, but acclimatization is difficult. The aim of this study was to establish a relationship between anatomical aspects of the roots and the acclimatization process. When cultures were supplemented with IBA, callus and thick and frangible roots appeared at the base of the microcuttings. A fragile vascular connection between roots and shoots was observed. Abnormal adventitious roots showing alteration in the vascular cylinder and hypertrophy of the cortical cells were also noted. These roots interfere in the transfer to extra vitrum conditions. When no growth regulator was used, no callus was formed, the adventitious roots were similar to those found in seedlings, and acclimatization could proceed. The results show that the origin and the structure of roots formed in the microcuttings play an important role in the acclimatization process and thus in the establishment of the micropropagated plants.Instituto de Tecnologia do Paraná - Tecpar2000-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000200012Brazilian Archives of Biology and Technology v.43 n.2 2000reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132000000200012info:eu-repo/semantics/openAccessMoreira,Míriam F.Appezzato-da-Glória,BeatrizZaidan,Lilian B.P.eng2007-03-09T00:00:00Zoai:scielo:S1516-89132000000200012Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2007-03-09T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false |
dc.title.none.fl_str_mv |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
title |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
spellingShingle |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil Moreira,Míriam F. Gomphrena root anatomy in vitro rooting indol butiric acid vascular connection |
title_short |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
title_full |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
title_fullStr |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
title_full_unstemmed |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
title_sort |
Anatomical aspects of IBA-treated microcuttings of Gomphrena macrocephala St.-Hil |
author |
Moreira,Míriam F. |
author_facet |
Moreira,Míriam F. Appezzato-da-Glória,Beatriz Zaidan,Lilian B.P. |
author_role |
author |
author2 |
Appezzato-da-Glória,Beatriz Zaidan,Lilian B.P. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Moreira,Míriam F. Appezzato-da-Glória,Beatriz Zaidan,Lilian B.P. |
dc.subject.por.fl_str_mv |
Gomphrena root anatomy in vitro rooting indol butiric acid vascular connection |
topic |
Gomphrena root anatomy in vitro rooting indol butiric acid vascular connection |
description |
Gomphrena macrocephala St.-Hil. (Amaranthaceae) is a perennial herb from the cerrado with medicinal properties and ornamental interest. Plants can be micropropagated through nodal segments, but acclimatization is difficult. The aim of this study was to establish a relationship between anatomical aspects of the roots and the acclimatization process. When cultures were supplemented with IBA, callus and thick and frangible roots appeared at the base of the microcuttings. A fragile vascular connection between roots and shoots was observed. Abnormal adventitious roots showing alteration in the vascular cylinder and hypertrophy of the cortical cells were also noted. These roots interfere in the transfer to extra vitrum conditions. When no growth regulator was used, no callus was formed, the adventitious roots were similar to those found in seedlings, and acclimatization could proceed. The results show that the origin and the structure of roots formed in the microcuttings play an important role in the acclimatization process and thus in the establishment of the micropropagated plants. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-01-01 |
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=S1516-89132000000200012 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000200012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-89132000000200012 |
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 Tecnologia do Paraná - Tecpar |
publisher.none.fl_str_mv |
Instituto de Tecnologia do Paraná - Tecpar |
dc.source.none.fl_str_mv |
Brazilian Archives of Biology and Technology v.43 n.2 2000 reponame:Brazilian Archives of Biology and Technology instname:Instituto de Tecnologia do Paraná (Tecpar) instacron:TECPAR |
instname_str |
Instituto de Tecnologia do Paraná (Tecpar) |
instacron_str |
TECPAR |
institution |
TECPAR |
reponame_str |
Brazilian Archives of Biology and Technology |
collection |
Brazilian Archives of Biology and Technology |
repository.name.fl_str_mv |
Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar) |
repository.mail.fl_str_mv |
babt@tecpar.br||babt@tecpar.br |
_version_ |
1750318268283879424 |