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PAMP-receptor
Activation
G-protein
Activation
Ca
2+
channel
Ca
2+
influx
Calcium sensor protein calmodulin
Activation
Gα subunit heterotrimeric
G-protein
Activation
NADPH oxidase
Small G-protein
binds
H
2
O
2
Activation
Lipoxygenase
OPDA
Activation
Gβ subunit
heterotrimeric
G-protein
OPDA
reductase
JASMONATE
Fig. 3.10
Small and heterotrimeric G-proteins- induced jasmonate biosynthesis
3.19
G-Proteins Switch on Abscisic Acid Signaling System
3.19.1
G-Proteins May Be Involved in Abscisic Acid
Biosynthesis
G-proteins may regulate ABA signaling system (Pandey and Assmann
2004
; Pandey
et al.
2006
; Liu et al.
2007a
). A regulator of G protein signaling (RGS) proteins,
RGS1, has been identifi ed in
Arabidopsis
(Chen et al.
2006
). Transgenic
Arabidopsis
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