Evidence for a SAL1-PAP Chloroplast Retrograde Pathway That Functions in Drought and High Light Signaling in Arabidopsis[C][W][OA]
A SAL1-PAP retrograde pathway that can alter nuclear gene expression during HL and drought stress is proposed and it is shown that PAP is a primary in vivo substrate.
Organization and regulation of mitochondrial respiration in plants.
- A. Millar, J. Whelan, K. Soole, D. Day
- Environmental Science, BiologyAnnual Review of Plant Biology
- 28 April 2011
Recent advances in understanding of the mitochondrial respiratory machinery of cells are described, including the presence of a classical oxidative phosphorylation system linked to the cytosol by transporters discussed alongside nonphosphorylating bypasses that alter the efficiency of ATP synthesis and play a role in oxidative stress responses in plants.
The Absence of ALTERNATIVE OXIDASE1a in Arabidopsis Results in Acute Sensitivity to Combined Light and Drought Stress[W][OA]
Results indicate that aox1a plants have a greatly altered stress response even when mitochondria or the mitochondrial electron transport chain are not the primary target of the stress and that AOX1a plays a broad role in determining the normal redox balance in the cell.
Molecular Definition of the Ascorbate-Glutathione Cycle in Arabidopsis Mitochondria Reveals Dual Targeting of Antioxidant Defenses in Plants*
- O. Chew, J. Whelan, A. Millar
- Biology, Environmental ScienceJournal of Biological Chemistry
- 21 November 2003
A model of an integrated ascorbate-glutathione antioxidant defense common to plastids and mitochondria that is linked at the level of the genome in Arabidopsis is presented.
Salicylic Acid Is an Uncoupler and Inhibitor of Mitochondrial Electron Transport1
SA is both an uncoupler and an inhibitor of mitochondrial electron transport and this underlies the induction of some genes by SA, and the possible implications for the interpretation of SA action in plants are discussed.
Stress induced gene expression drives transient DNA methylation changes at adjacent repetitive elements
Cytosine DNA methylation (mC) is a genome modification that can regulate the expression of coding and non-coding genetic elements. However, little is known about the involvement of mC in response to…
The Arabidopsis glutathione transferase gene family displays complex stress regulation and co-silencing multiple genes results in altered metabolic sensitivity to oxidative stress.
There appears to be a high degree of functional redundancy within the Arabidopsis GST family, with extensive disruption being required to reveal the roles of phi GSTs in protection against oxidative stress.
Experimental Analysis of the Arabidopsis Mitochondrial Proteome Highlights Signaling and Regulatory Components, Provides Assessment of Targeting Prediction Programs, and Indicates Plant-Specific…
- J. Heazlewood, Julian Tonti-Filippini, A. Gout, D. Day, J. Whelan, A. Millar
- BiologyThe Plant Cell Online
- 1 January 2004
Maps of putative orthology networks between yeast, human, and Arabidopsis mitochondrial proteomes and the Rickettsia prowazekii proteome provide detailed insights into the divergence of the plant mitochondrial proteome from those of other eukaryotes.
Alternative oxidases in Arabidopsis: a comparative analysis of differential expression in the gene family provides new insights into function of non-phosphorylating bypasses.
Molecular Distinction between Alternative Oxidase from Monocots and Dicots1
The alternative oxidase (Aox) is encoded in two discrete gene subfamilies in higher plants. Aox1 is most widely known for its induction by stress stimuli in many tissues and is present in both…