Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function.
Phytohormones regulate plant development via a poorly understood signal response network. Here, we show that the phytohormone ethylene regulates plant development at least in part via alteration of the properties of DELLA protein nuclear growth repressors, a family of proteins first identified as gi...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2003
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| _version_ | 1797081624402198528 |
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| author | Achard, P Vriezen, W Van Der Straeten, D Harberd, N |
| author_facet | Achard, P Vriezen, W Van Der Straeten, D Harberd, N |
| author_sort | Achard, P |
| collection | OXFORD |
| description | Phytohormones regulate plant development via a poorly understood signal response network. Here, we show that the phytohormone ethylene regulates plant development at least in part via alteration of the properties of DELLA protein nuclear growth repressors, a family of proteins first identified as gibberellin (GA) signaling components. This conclusion is based on the following experimental observations. First, ethylene inhibited Arabidopsis root growth in a DELLA-dependent manner. Second, ethylene delayed the GA-induced disappearance of the DELLA protein repressor of ga1-3 from root cell nuclei via a constitutive triple response-dependent signaling pathway. Third, the ethylene-promoted "apical hook" structure of etiolated seedling hypocotyls was dependent on the relief of DELLA-mediated growth restraint. Ethylene, auxin, and GA responses now can be attributed to effects on DELLA function, suggesting that DELLA plays a key integrative role in the phytohormone signal response network. |
| first_indexed | 2024-03-07T01:16:48Z |
| format | Journal article |
| id | oxford-uuid:8ef5d4b3-363a-4ed3-adea-b0d9fb00c011 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:16:48Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:8ef5d4b3-363a-4ed3-adea-b0d9fb00c0112022-03-26T23:01:09ZEthylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8ef5d4b3-363a-4ed3-adea-b0d9fb00c011EnglishSymplectic Elements at Oxford2003Achard, PVriezen, WVan Der Straeten, DHarberd, NPhytohormones regulate plant development via a poorly understood signal response network. Here, we show that the phytohormone ethylene regulates plant development at least in part via alteration of the properties of DELLA protein nuclear growth repressors, a family of proteins first identified as gibberellin (GA) signaling components. This conclusion is based on the following experimental observations. First, ethylene inhibited Arabidopsis root growth in a DELLA-dependent manner. Second, ethylene delayed the GA-induced disappearance of the DELLA protein repressor of ga1-3 from root cell nuclei via a constitutive triple response-dependent signaling pathway. Third, the ethylene-promoted "apical hook" structure of etiolated seedling hypocotyls was dependent on the relief of DELLA-mediated growth restraint. Ethylene, auxin, and GA responses now can be attributed to effects on DELLA function, suggesting that DELLA plays a key integrative role in the phytohormone signal response network. |
| spellingShingle | Achard, P Vriezen, W Van Der Straeten, D Harberd, N Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function. |
| title | Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function. |
| title_full | Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function. |
| title_fullStr | Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function. |
| title_full_unstemmed | Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function. |
| title_short | Ethylene regulates arabidopsis development via the modulation of DELLA protein growth repressor function. |
| title_sort | ethylene regulates arabidopsis development via the modulation of della protein growth repressor function |
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