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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2016.02.017
|2 doi
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|a pubmed25n0865.xml
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|a (DE-627)NLM259561835
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|a (NLM)27095397
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|a (PII)S0168-9452(16)30029-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Bai, Bo
|e verfasserin
|4 aut
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| 245 |
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|a OsBBX14 delays heading date by repressing florigen gene expression under long and short-day conditions in rice
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 14.12.2016
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.
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|a B-box (BBX) proteins are zinc finger proteins containing B-box domains, which have roles in Arabidopsis growth and development. However, little is known concerning rice BBXs. Herein, we identified a rice BBX protein, Oryza sativa BBX14 (OsBBX14). OsBBX14 is highly expressed in flag leaf blades. OsBBX14 expression shows a diurnal rhythm under photoperiodic conditions and subsequent continuous white light. OsBBX14 is located in the nucleus and has transcriptional activation potential. OsBBX14-overexpression (OsBBX14-OX) lines exhibited delayed heading date under long-day (LD) and short-day (SD) conditions, whereas RNAi lines of OsBBX14 lines had similar heading dates to the WT. The florigen genes, Hd3a and RFT1, were downregulated in the OsBBX14-OX lines under LD and SD conditions. Under LD conditions, Hd1 was expressed higher in the OsBBX14-OX lines than in the wild type (WT), and the rhythmic expression of circadian clock genes, OsLHY and OsPRR1, was changed in OsBBX14-OX lines. Thus, OsBBX14 acts as a floral repressor by promoting Hd1 expression under LD conditions, probably because of crosstalk with the circadian clock. Under SD conditions, Ehd1 expression was reduced in OsBBX14-OX lines, but Hd1 and circadian clock gene expressions were unaffected, indicating that OsBBX14 acts as a repressor of Ehd1. Our findings suggested that OsBBX14 regulates heading date differently under LD and SD conditions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a B-box zinc finger protein
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|a Circadian clock
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|a Heading date
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|a Photoperiod pathway
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|a Rice
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| 650 |
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|a Florigen
|2 NLM
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| 650 |
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|a Plant Growth Regulators
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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| 700 |
1 |
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|a Zhao, Jie
|e verfasserin
|4 aut
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| 700 |
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|a Li, Yaping
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Fang
|e verfasserin
|4 aut
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| 700 |
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|a Zhou, Jinjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Fan
|e verfasserin
|4 aut
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| 700 |
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|a Xie, Xianzhi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 247(2016) vom: 11. Juni, Seite 25-34
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
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|g volume:247
|g year:2016
|g day:11
|g month:06
|g pages:25-34
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|u http://dx.doi.org/10.1016/j.plantsci.2016.02.017
|3 Volltext
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|d 247
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