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CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus
Strigolactones (SLs) are newly identified hormones that regulate multiple aspects of plant development, infection by parasitic weeds, and mutualistic symbiosis in the roots. In this study, the role of SLs was studied for the first time in the model plant Lotus japonicus using transgenic lines silenc...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3638823/ https://www.ncbi.nlm.nih.gov/pubmed/23567864 http://dx.doi.org/10.1093/jxb/ert056 |
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author | Liu, Junwei Novero, Mara Charnikhova, Tatsiana Ferrandino, Alessandra Schubert, Andrea Ruyter-Spira, Carolien Bonfante, Paola Lovisolo, Claudio Bouwmeester, Harro J. Cardinale, Francesca |
author_facet | Liu, Junwei Novero, Mara Charnikhova, Tatsiana Ferrandino, Alessandra Schubert, Andrea Ruyter-Spira, Carolien Bonfante, Paola Lovisolo, Claudio Bouwmeester, Harro J. Cardinale, Francesca |
author_sort | Liu, Junwei |
collection | PubMed |
description | Strigolactones (SLs) are newly identified hormones that regulate multiple aspects of plant development, infection by parasitic weeds, and mutualistic symbiosis in the roots. In this study, the role of SLs was studied for the first time in the model plant Lotus japonicus using transgenic lines silenced for CAROTENOID CLEAVAGE DIOXYGENASE 7 (LjCCD7), the orthologue of Arabidopsis More Axillary Growth 3. Transgenic LjCCD7-silenced plants displayed reduced height due to shorter internodes, and more branched shoots and roots than the controls, and an increase in total plant biomass, while their root:shoot ratio remained unchanged. Moreover, these lines had longer primary roots, delayed senescence, and reduced flower/pod numbers from the third round of flower and pod setting onwards. Only a mild reduction in determinate nodule numbers and hardly any impact on the colonization by arbuscular mycorrhizal fungi were observed. The results show that the impairment of CCD7 activity in L. japonicus leads to a phenotype linked to SL functions, but with specific features possibly due to the peculiar developmental pattern of this plant species. It is believed that the data also link determinate nodulation, plant reproduction, and senescence to CCD7 function for the first time. |
format | Online Article Text |
id | pubmed-3638823 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-36388232014-04-01 CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus Liu, Junwei Novero, Mara Charnikhova, Tatsiana Ferrandino, Alessandra Schubert, Andrea Ruyter-Spira, Carolien Bonfante, Paola Lovisolo, Claudio Bouwmeester, Harro J. Cardinale, Francesca J Exp Bot Research Paper Strigolactones (SLs) are newly identified hormones that regulate multiple aspects of plant development, infection by parasitic weeds, and mutualistic symbiosis in the roots. In this study, the role of SLs was studied for the first time in the model plant Lotus japonicus using transgenic lines silenced for CAROTENOID CLEAVAGE DIOXYGENASE 7 (LjCCD7), the orthologue of Arabidopsis More Axillary Growth 3. Transgenic LjCCD7-silenced plants displayed reduced height due to shorter internodes, and more branched shoots and roots than the controls, and an increase in total plant biomass, while their root:shoot ratio remained unchanged. Moreover, these lines had longer primary roots, delayed senescence, and reduced flower/pod numbers from the third round of flower and pod setting onwards. Only a mild reduction in determinate nodule numbers and hardly any impact on the colonization by arbuscular mycorrhizal fungi were observed. The results show that the impairment of CCD7 activity in L. japonicus leads to a phenotype linked to SL functions, but with specific features possibly due to the peculiar developmental pattern of this plant species. It is believed that the data also link determinate nodulation, plant reproduction, and senescence to CCD7 function for the first time. Oxford University Press 2013-04 2013-04-06 /pmc/articles/PMC3638823/ /pubmed/23567864 http://dx.doi.org/10.1093/jxb/ert056 Text en © The Author(2) [2013]. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc/3.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com. |
spellingShingle | Research Paper Liu, Junwei Novero, Mara Charnikhova, Tatsiana Ferrandino, Alessandra Schubert, Andrea Ruyter-Spira, Carolien Bonfante, Paola Lovisolo, Claudio Bouwmeester, Harro J. Cardinale, Francesca CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus |
title | CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus |
title_full | CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus |
title_fullStr | CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus |
title_full_unstemmed | CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus |
title_short | CAROTENOID CLEAVAGE DIOXYGENASE 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume Lotus japonicus |
title_sort | carotenoid cleavage dioxygenase 7 modulates plant growth, reproduction, senescence, and determinate nodulation in the model legume lotus japonicus |
topic | Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3638823/ https://www.ncbi.nlm.nih.gov/pubmed/23567864 http://dx.doi.org/10.1093/jxb/ert056 |
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