Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes
Four phenotypically different genotypes from an alpine population of Stellaria longipes Goldie s.l. (Caryophyllaceae) were collected from neighbouring sites at the top of the Plateau Mountain in southeastern Alberta, Canada, to examine a possible hormonal basis for their differences in stem length,...
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2006
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crcansciencepubl:10.1139/b06-090 2023-12-17T10:50:42+01:00 Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes Kurepin, Leonid V. Mancell, Lisa Reid, David M. Pharis, Richard P. Chinnappa, C.C. 2006 http://dx.doi.org/10.1139/b06-090 http://www.nrcresearchpress.com/doi/full-xml/10.1139/b06-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/b06-090 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 84, issue 7, page 1101-1109 ISSN 0008-4026 Plant Science journal-article 2006 crcansciencepubl https://doi.org/10.1139/b06-090 2023-11-19T13:39:39Z Four phenotypically different genotypes from an alpine population of Stellaria longipes Goldie s.l. (Caryophyllaceae) were collected from neighbouring sites at the top of the Plateau Mountain in southeastern Alberta, Canada, to examine a possible hormonal basis for their differences in stem length, leaf size, and flowering characteristics. All four genotypes had a dwarf shoot phenotype, compared with the low-elevation ecotype. Among the four genotypes, PMI-D was the tallest and had the largest leaves and flowers as well as more flowers per plant. PMI-D also maintained the flowering state, upon repropagation, without low temperature, short-day vernalization. Under controlled long-day warm conditions, the PMI-D genotype had a higher rate of ethylene evolution, but contained levels of endogenous gibberellin A 1 that were similar to the other three (smaller) alpine genotypes. PMI-D was more sensitive to exogenously applied ethylene and growth-active gibberellins than other alpine genotypes. In contrast, the other three genotypes were smaller, had fewer (and smaller) flowers, and exhibited low ethylene evolution and a reduced sensitivity to applied ethylene and growth-active gibberellins. Speculatively, this behaviour may indicate an adaptation within this unique population of “dwarf” phenotypes that involves enhanced sensitivity to endogenous ethylene and gibberellins. Article in Journal/Newspaper Stellaria longipes Canadian Science Publishing (via Crossref) Canada Goldie ENVELOPE(165.900,165.900,-82.633,-82.633) Plateau Mountain ENVELOPE(-133.935,-133.935,63.104,63.104) Canadian Journal of Botany 84 7 1101 1109 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science |
spellingShingle |
Plant Science Kurepin, Leonid V. Mancell, Lisa Reid, David M. Pharis, Richard P. Chinnappa, C.C. Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes |
topic_facet |
Plant Science |
description |
Four phenotypically different genotypes from an alpine population of Stellaria longipes Goldie s.l. (Caryophyllaceae) were collected from neighbouring sites at the top of the Plateau Mountain in southeastern Alberta, Canada, to examine a possible hormonal basis for their differences in stem length, leaf size, and flowering characteristics. All four genotypes had a dwarf shoot phenotype, compared with the low-elevation ecotype. Among the four genotypes, PMI-D was the tallest and had the largest leaves and flowers as well as more flowers per plant. PMI-D also maintained the flowering state, upon repropagation, without low temperature, short-day vernalization. Under controlled long-day warm conditions, the PMI-D genotype had a higher rate of ethylene evolution, but contained levels of endogenous gibberellin A 1 that were similar to the other three (smaller) alpine genotypes. PMI-D was more sensitive to exogenously applied ethylene and growth-active gibberellins than other alpine genotypes. In contrast, the other three genotypes were smaller, had fewer (and smaller) flowers, and exhibited low ethylene evolution and a reduced sensitivity to applied ethylene and growth-active gibberellins. Speculatively, this behaviour may indicate an adaptation within this unique population of “dwarf” phenotypes that involves enhanced sensitivity to endogenous ethylene and gibberellins. |
format |
Article in Journal/Newspaper |
author |
Kurepin, Leonid V. Mancell, Lisa Reid, David M. Pharis, Richard P. Chinnappa, C.C. |
author_facet |
Kurepin, Leonid V. Mancell, Lisa Reid, David M. Pharis, Richard P. Chinnappa, C.C. |
author_sort |
Kurepin, Leonid V. |
title |
Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes |
title_short |
Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes |
title_full |
Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes |
title_fullStr |
Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes |
title_full_unstemmed |
Possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of Stellaria longipes |
title_sort |
possible roles for ethylene and gibberellin in the phenotypic plasticity of an alpine population of stellaria longipes |
publisher |
Canadian Science Publishing |
publishDate |
2006 |
url |
http://dx.doi.org/10.1139/b06-090 http://www.nrcresearchpress.com/doi/full-xml/10.1139/b06-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/b06-090 |
long_lat |
ENVELOPE(165.900,165.900,-82.633,-82.633) ENVELOPE(-133.935,-133.935,63.104,63.104) |
geographic |
Canada Goldie Plateau Mountain |
geographic_facet |
Canada Goldie Plateau Mountain |
genre |
Stellaria longipes |
genre_facet |
Stellaria longipes |
op_source |
Canadian Journal of Botany volume 84, issue 7, page 1101-1109 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b06-090 |
container_title |
Canadian Journal of Botany |
container_volume |
84 |
container_issue |
7 |
container_start_page |
1101 |
op_container_end_page |
1109 |
_version_ |
1785575747647176704 |