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Rhythmic expression of mitogen activated protein kinase activity in rice

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Title Rhythmic expression of mitogen activated protein kinase activity in rice
 
Creator Rao, Kudupudi Prabhakara
Vani, Gubbala
Kumar, Kundan
Sinha, Alok Krishna
 
Subject circadian clock
diurnal rhythm
mitogen activated protein kinase (MAPK)
rice
signal transduction
 
Description Mitogen activated protein kinase (MAPK) are known to get
activated during various stress signals and transduce the
message from the cell membrane to the nucleus for appropriate cellular reorganization. Though, a certain basal
activity of MAPK is often observed in the control plants.
Prolonged exposure of rice plants to lowered or elevated
temperature exhibited a rhythm in the activation of MAPKs.
We analyzed existence of a possible endogenous rhythm
in the activity of MAPKs in rice plants. The plants growing
at constant temperature entrained in 16/8 h day-night cycle
showed diurnal rhythm in activity. When the activation of
MAPK was tested under continuous conditions by shifting
plants to continuous darkness for a period of 72 h, the
periodic rhythm persisted and followed a circadian pattern.
Analysis of the transcripts of group A, B and C members
of MAPKs under above conditions by quantitative real time
PCR revealed that the members of group C exhibit periodic
rhythm. Our data indicates that the MAP kinase activity in
rice follows rhythmic expression in a circadian manner.
This work
is supported by financial assistance from Department of Biotechnology (DBT), Govt. of India.
 
Date 2014-02-13T06:15:41Z
2014-02-13T06:15:41Z
2009
26 August 2009
 
Type Article
 
Identifier Mol. Cells, 28: 417-422
http://hdl.handle.net/123456789/126
 
Language en
 
Publisher Springer