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Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.)
In roses (Rosa sp.), peduncle morphology is an important ornamental feature. The common physiological abnormality known as the bent peduncle phenomenon (BPP) seriously decreases the quality of rose flowers and thus the commercial value. Because the molecular mechanisms underlying this condition are...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7072929/ https://www.ncbi.nlm.nih.gov/pubmed/32085472 http://dx.doi.org/10.3390/ijms21041360 |
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author | Jing, Weikun Zhang, Shuai Fan, Youwei Deng, Yinglong Wang, Chengpeng Lu, Jingyun Sun, Xiaoming Ma, Nan Shahid, Muhammad Owais Li, Yonghong Zhou, Xiaofeng |
author_facet | Jing, Weikun Zhang, Shuai Fan, Youwei Deng, Yinglong Wang, Chengpeng Lu, Jingyun Sun, Xiaoming Ma, Nan Shahid, Muhammad Owais Li, Yonghong Zhou, Xiaofeng |
author_sort | Jing, Weikun |
collection | PubMed |
description | In roses (Rosa sp.), peduncle morphology is an important ornamental feature. The common physiological abnormality known as the bent peduncle phenomenon (BPP) seriously decreases the quality of rose flowers and thus the commercial value. Because the molecular mechanisms underlying this condition are poorly understood, we analysed the transcriptional profiles and cellular structures of bent rose peduncles. Numerous differentially expressed genes involved in the auxin, cytokinin, and gibberellin signaling pathways were shown to be associated with bent peduncle. Paraffin sections showed that the cell number on the upper sides of bent peduncles was increased, while the cells on the lower sides were larger than those in normal peduncles. We also investigated the large, deformed sepals that usually accompany BPP and found increased expression level of some auxin-responsive genes and decreased expression level of genes that are involved in cytokinin and gibberellin synthesis in these sepals. Furthermore, removal of the deformed sepals partially relieved BPP. In summary, our findings suggest that auxin, cytokinin, and gibberellin all influence the development of BPP by regulating cell division and expansion. To effectively reduce BPP in roses, more efforts need to be devoted to the molecular regulation of gibberellins and cytokinins in addition to that of auxin. |
format | Online Article Text |
id | pubmed-7072929 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70729292020-03-19 Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) Jing, Weikun Zhang, Shuai Fan, Youwei Deng, Yinglong Wang, Chengpeng Lu, Jingyun Sun, Xiaoming Ma, Nan Shahid, Muhammad Owais Li, Yonghong Zhou, Xiaofeng Int J Mol Sci Article In roses (Rosa sp.), peduncle morphology is an important ornamental feature. The common physiological abnormality known as the bent peduncle phenomenon (BPP) seriously decreases the quality of rose flowers and thus the commercial value. Because the molecular mechanisms underlying this condition are poorly understood, we analysed the transcriptional profiles and cellular structures of bent rose peduncles. Numerous differentially expressed genes involved in the auxin, cytokinin, and gibberellin signaling pathways were shown to be associated with bent peduncle. Paraffin sections showed that the cell number on the upper sides of bent peduncles was increased, while the cells on the lower sides were larger than those in normal peduncles. We also investigated the large, deformed sepals that usually accompany BPP and found increased expression level of some auxin-responsive genes and decreased expression level of genes that are involved in cytokinin and gibberellin synthesis in these sepals. Furthermore, removal of the deformed sepals partially relieved BPP. In summary, our findings suggest that auxin, cytokinin, and gibberellin all influence the development of BPP by regulating cell division and expansion. To effectively reduce BPP in roses, more efforts need to be devoted to the molecular regulation of gibberellins and cytokinins in addition to that of auxin. MDPI 2020-02-18 /pmc/articles/PMC7072929/ /pubmed/32085472 http://dx.doi.org/10.3390/ijms21041360 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Jing, Weikun Zhang, Shuai Fan, Youwei Deng, Yinglong Wang, Chengpeng Lu, Jingyun Sun, Xiaoming Ma, Nan Shahid, Muhammad Owais Li, Yonghong Zhou, Xiaofeng Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) |
title | Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) |
title_full | Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) |
title_fullStr | Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) |
title_full_unstemmed | Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) |
title_short | Molecular Evidences for the Interactions of Auxin, Gibberellin, and Cytokinin in Bent Peduncle Phenomenon in Rose (Rosa sp.) |
title_sort | molecular evidences for the interactions of auxin, gibberellin, and cytokinin in bent peduncle phenomenon in rose (rosa sp.) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7072929/ https://www.ncbi.nlm.nih.gov/pubmed/32085472 http://dx.doi.org/10.3390/ijms21041360 |
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