cGMP in ozone and NO dependent responses

Luisa Ederli; Stuart Kurt Meier; Andrea Borgogni; Lara Reale; Francesco Ferranti; Chris Gehring; Stefania Pasqualini

doi:10.4161/psb.3.1.4818

cGMP in ozone and NO dependent responses

Luisa Ederli, Stuart Kurt Meier, Andrea Borgogni, Lara Reale, Francesco Ferranti, Chris Gehring, Stefania Pasqualini^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

We have recently reported that ozone (O₃) can inhibit mitochondrial respiration and induce activation of the alternative oxidase (AOX) pathway and in particular AOX1a in tobacco. While O₃ causes mitochondrial H₂O₂, early leaf nitric oxide (NO) as well as transient ethylene (ET) accumulation, the levels of jasmonic acid and 12-oxo-phytodienoic acid remained unchanged. It was shown that both, NO and ET dependent pathways can induce AOX1a transcription by O₃. AOX plays a role in reducing reactive oxygen species (ROS) which in turn are linked to biotic and abiotic plant stresses, much like the second messengers guanosine 3′, 5′-cyclic monophosphate (cGMP). The goal is to unravel specific cGMP signatures and induction pathways downstream from O₃ and NO, including transcription of AOX1a. Here we propose that some late (>3 h) responses to NO, e.g., the accumulation of phenylalanine lyase (PAL) transcripts, are critically cGMP dependent, while the early (<2 h) responses, including AOX1a induction are not.

Original language	English (US)
Pages (from-to)	36-37
Number of pages	2
Journal	Plant Signaling and Behavior
Volume	3
Issue number	1
DOIs	https://doi.org/10.4161/psb.3.1.4818
State	Published - Jan 2008
Externally published	Yes

Keywords

Alternative oxidase (AOX)
Arabidopsis thaliana
Ethylene
Nicotiana tabacum L.
Nitric oxide
Ozone
cGMP

ASJC Scopus subject areas

Plant Science

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title = "cGMP in ozone and NO dependent responses",

abstract = "We have recently reported that ozone (O3) can inhibit mitochondrial respiration and induce activation of the alternative oxidase (AOX) pathway and in particular AOX1a in tobacco. While O3 causes mitochondrial H2O2, early leaf nitric oxide (NO) as well as transient ethylene (ET) accumulation, the levels of jasmonic acid and 12-oxo-phytodienoic acid remained unchanged. It was shown that both, NO and ET dependent pathways can induce AOX1a transcription by O3. AOX plays a role in reducing reactive oxygen species (ROS) which in turn are linked to biotic and abiotic plant stresses, much like the second messengers guanosine 3′, 5′-cyclic monophosphate (cGMP). The goal is to unravel specific cGMP signatures and induction pathways downstream from O3 and NO, including transcription of AOX1a. Here we propose that some late (>3 h) responses to NO, e.g., the accumulation of phenylalanine lyase (PAL) transcripts, are critically cGMP dependent, while the early (<2 h) responses, including AOX1a induction are not.",

keywords = "Alternative oxidase (AOX), Arabidopsis thaliana, Ethylene, Nicotiana tabacum L., Nitric oxide, Ozone, cGMP",

author = "Luisa Ederli and Meier, {Stuart Kurt} and Andrea Borgogni and Lara Reale and Francesco Ferranti and Chris Gehring and Stefania Pasqualini",

year = "2008",

month = jan,

doi = "10.4161/psb.3.1.4818",

language = "English (US)",

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pages = "36--37",

journal = "Plant Signaling and Behavior",

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T1 - cGMP in ozone and NO dependent responses

AU - Ederli, Luisa

AU - Meier, Stuart Kurt

AU - Borgogni, Andrea

AU - Reale, Lara

AU - Ferranti, Francesco

AU - Gehring, Chris

AU - Pasqualini, Stefania

PY - 2008/1

Y1 - 2008/1

N2 - We have recently reported that ozone (O3) can inhibit mitochondrial respiration and induce activation of the alternative oxidase (AOX) pathway and in particular AOX1a in tobacco. While O3 causes mitochondrial H2O2, early leaf nitric oxide (NO) as well as transient ethylene (ET) accumulation, the levels of jasmonic acid and 12-oxo-phytodienoic acid remained unchanged. It was shown that both, NO and ET dependent pathways can induce AOX1a transcription by O3. AOX plays a role in reducing reactive oxygen species (ROS) which in turn are linked to biotic and abiotic plant stresses, much like the second messengers guanosine 3′, 5′-cyclic monophosphate (cGMP). The goal is to unravel specific cGMP signatures and induction pathways downstream from O3 and NO, including transcription of AOX1a. Here we propose that some late (>3 h) responses to NO, e.g., the accumulation of phenylalanine lyase (PAL) transcripts, are critically cGMP dependent, while the early (<2 h) responses, including AOX1a induction are not.

AB - We have recently reported that ozone (O3) can inhibit mitochondrial respiration and induce activation of the alternative oxidase (AOX) pathway and in particular AOX1a in tobacco. While O3 causes mitochondrial H2O2, early leaf nitric oxide (NO) as well as transient ethylene (ET) accumulation, the levels of jasmonic acid and 12-oxo-phytodienoic acid remained unchanged. It was shown that both, NO and ET dependent pathways can induce AOX1a transcription by O3. AOX plays a role in reducing reactive oxygen species (ROS) which in turn are linked to biotic and abiotic plant stresses, much like the second messengers guanosine 3′, 5′-cyclic monophosphate (cGMP). The goal is to unravel specific cGMP signatures and induction pathways downstream from O3 and NO, including transcription of AOX1a. Here we propose that some late (>3 h) responses to NO, e.g., the accumulation of phenylalanine lyase (PAL) transcripts, are critically cGMP dependent, while the early (<2 h) responses, including AOX1a induction are not.

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KW - Arabidopsis thaliana

KW - Ethylene

KW - Nicotiana tabacum L.

KW - Nitric oxide

KW - Ozone

KW - cGMP

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DO - 10.4161/psb.3.1.4818

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cGMP in ozone and NO dependent responses

Abstract

Keywords

ASJC Scopus subject areas

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