J. Whelan

Publications370
h-index85
Citations21,229
Highly Influential Citations1,093
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Organization and regulation of mitochondrial respiration in plants.
TLDR
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. Expand
Experimental Analysis of the Arabidopsis Mitochondrial Proteome Highlights Signaling and Regulatory Components, Provides Assessment of Targeting Prediction Programs, and Indicates Plant-Specific…
TLDR
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. Expand
Molecular Definition of the Ascorbate-Glutathione Cycle in Arabidopsis Mitochondria Reveals Dual Targeting of Antioxidant Defenses in Plants*
TLDR
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. Expand
The Absence of ALTERNATIVE OXIDASE1a in Arabidopsis Results in Acute Sensitivity to Combined Light and Drought Stress[W][OA]
TLDR
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. Expand
Genome-Wide Analysis of mRNA Decay Rates and Their Determinants in Arabidopsis thaliana[W]
TLDR
Comparison of decay rates with changes in transcript abundance under a variety of abiotic stresses reveal that a set of transcription factors are downregulated with similar kinetics to decay rates, suggesting that inhibition of their transcription is an important early response to abiotic stress. Expand
Evidence for a SAL1-PAP Chloroplast Retrograde Pathway That Functions in Drought and High Light Signaling in Arabidopsis[C][W][OA]
TLDR
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. Expand
Salicylic Acid Is an Uncoupler and Inhibitor of Mitochondrial Electron Transport1
TLDR
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. Expand
Alternative oxidase: a target and regulator of stress responses.
TLDR
The alternative oxidase (AOX) is found in all plants examined to date, fungi and lower invertebrates and it is proposed that AOX plays a central role in defining the stress response. Expand
Spatio-Temporal Transcript Profiling of Rice Roots and Shoots in Response to Phosphate Starvation and Recovery[W][OPEN]
TLDR
A comprehensive spatio-temporal transcriptome analysis of plant responses to Pi stress is presented, revealing a large number of potential key regulators of Pi homeostasis in plants. Expand
Analysis of E1A-mediated growth regulation functions: binding of the 300-kilodalton cellular product correlates with E1A enhancer repression function and DNA synthesis-inducing activity
TLDR
The results indicate that transformation by E1A is mediated by two functionally independent regions of the protein which interact with different specific cellular proteins and suggest that the 300-kilodalton E 1A-associated protein plays a major role in E2A-mediated cell growth control mechanisms. Expand
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