COP1 regulates the stability of CAM7 to promote photomorphogenic growth

Abstract The unique member of the calmodulin gene family, Calmodulin7 (CAM7), plays a crucial role as transcriptional regulator to promote Arabidopsis seedling development. CAM7 regulates the expression of HY5, which is intimately involved in the promotion of photomorphogenic growth and light‐regula...

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Main Authors: Dhirodatta Senapati, Ritu Kushwaha, Siddhartha Dutta, Jay Prakash Maurya, Srabasthi Biswas, Sreeramaiah N. Gangappa, Sudip Chattopadhyay
Format: Article
Language:English
Published: Wiley 2019-06-01
Series:Plant Direct
Subjects:
Online Access:https://doi.org/10.1002/pld3.144
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author Dhirodatta Senapati
Ritu Kushwaha
Siddhartha Dutta
Jay Prakash Maurya
Srabasthi Biswas
Sreeramaiah N. Gangappa
Sudip Chattopadhyay
author_facet Dhirodatta Senapati
Ritu Kushwaha
Siddhartha Dutta
Jay Prakash Maurya
Srabasthi Biswas
Sreeramaiah N. Gangappa
Sudip Chattopadhyay
author_sort Dhirodatta Senapati
collection DOAJ
description Abstract The unique member of the calmodulin gene family, Calmodulin7 (CAM7), plays a crucial role as transcriptional regulator to promote Arabidopsis seedling development. CAM7 regulates the expression of HY5, which is intimately involved in the promotion of photomorphogenic growth and light‐regulated gene expression. COP1 ubiquitin ligase suppresses photomorphogenesis by degrading multiple photomorphogenesis promoting factors including HY5 in darkness. Genetic interaction studies, in this report, reveal that CAM7 and COP1 co‐ordinately work to promote photomorphogenic growth and light‐regulated gene expression at lower intensity of light. CAM7 physically interacts with COP1 in the nucleus. Further, in vivo study suggests that CAM7 and COP1 interaction is light intensity dependent. We have also shown that functional COP1 is required for optimum accumulation of CAM7 at lower fluences of light. Taken together, this study demonstrates the coordinated function of CAM7 and COP1 in Arabidopsis seedling development.
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spelling doaj.art-033754f2faf143d5bb76ac18187c1dc82022-12-21T17:17:35ZengWileyPlant Direct2475-44552019-06-0136n/an/a10.1002/pld3.144COP1 regulates the stability of CAM7 to promote photomorphogenic growthDhirodatta Senapati0Ritu Kushwaha1Siddhartha Dutta2Jay Prakash Maurya3Srabasthi Biswas4Sreeramaiah N. Gangappa5Sudip Chattopadhyay6Department of Biotechnology National Institute of Technology Durgapur IndiaDepartment of Biotechnology National Institute of Technology Durgapur IndiaDepartment of Biotechnology National Institute of Technology Durgapur IndiaDepartment of Biotechnology National Institute of Technology Durgapur IndiaDepartment of Biotechnology National Institute of Technology Durgapur IndiaDepartment of Biotechnology National Institute of Technology Durgapur IndiaDepartment of Biotechnology National Institute of Technology Durgapur IndiaAbstract The unique member of the calmodulin gene family, Calmodulin7 (CAM7), plays a crucial role as transcriptional regulator to promote Arabidopsis seedling development. CAM7 regulates the expression of HY5, which is intimately involved in the promotion of photomorphogenic growth and light‐regulated gene expression. COP1 ubiquitin ligase suppresses photomorphogenesis by degrading multiple photomorphogenesis promoting factors including HY5 in darkness. Genetic interaction studies, in this report, reveal that CAM7 and COP1 co‐ordinately work to promote photomorphogenic growth and light‐regulated gene expression at lower intensity of light. CAM7 physically interacts with COP1 in the nucleus. Further, in vivo study suggests that CAM7 and COP1 interaction is light intensity dependent. We have also shown that functional COP1 is required for optimum accumulation of CAM7 at lower fluences of light. Taken together, this study demonstrates the coordinated function of CAM7 and COP1 in Arabidopsis seedling development.https://doi.org/10.1002/pld3.144ArabidopsisCAM7 and COP1gene expressionphotomorphogenesisprotein stability
spellingShingle Dhirodatta Senapati
Ritu Kushwaha
Siddhartha Dutta
Jay Prakash Maurya
Srabasthi Biswas
Sreeramaiah N. Gangappa
Sudip Chattopadhyay
COP1 regulates the stability of CAM7 to promote photomorphogenic growth
Plant Direct
Arabidopsis
CAM7 and COP1
gene expression
photomorphogenesis
protein stability
title COP1 regulates the stability of CAM7 to promote photomorphogenic growth
title_full COP1 regulates the stability of CAM7 to promote photomorphogenic growth
title_fullStr COP1 regulates the stability of CAM7 to promote photomorphogenic growth
title_full_unstemmed COP1 regulates the stability of CAM7 to promote photomorphogenic growth
title_short COP1 regulates the stability of CAM7 to promote photomorphogenic growth
title_sort cop1 regulates the stability of cam7 to promote photomorphogenic growth
topic Arabidopsis
CAM7 and COP1
gene expression
photomorphogenesis
protein stability
url https://doi.org/10.1002/pld3.144
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