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Living on the edge-plants and global change in continental and maritime Antarctica
Antarctic terrestrial ecosystems experience some of the most extreme growth conditions on Earth and are characterized by extreme aridity and subzero temperatures. Antarctic vegetation is therefore at… Expand
Identification and expression analyses of cytosolic glutamine synthetase genes in barley (Hordeum vulgare L.).
Glutamine synthetase (GS) is a key enzyme in nitrogen (N) assimilation, particularly during seed development. Three cytosolic GS isoforms (HvGS1) were identified in barley (Hordeum vulgare L. cv… Expand
Cellular compartmentation of ammonium assimilation in rice and barley.
This review describes immunolocalization studies of the tissue and cellular location of glutamine synthetase (GS; EC 126.96.36.199) and glutamate synthase (Fd GOGAT; EC 188.8.131.52 and NADH-GOGAT; EC 184.108.40.206)… Expand
The genetic control of plant mitochondrial morphology and dynamics.
- David C Logan, I. Scott, A. K. Tobin
- Medicine, Biology
- The Plant journal : for cell and molecular…
- 1 November 2003
Little is known about the genetic control of mitochondrial morphology and dynamics in higher plants. We used a genetic screen involving fluorescence microscopic analysis of ethyl methane sulphonate… Expand
BIGYIN, an orthologue of human and yeast FIS1 genes functions in the control of mitochondrial size and number in Arabidopsis thaliana.
Reverse-genetics was used to evaluate the role of an Arabidopsis homologue of the human and yeast FIS1 genes, which are both involved in mitochondrial fission. Two independent T-DNA insertion mutants… Expand
Heterogeneity of plant mitochondrial responses underpinning respiratory acclimation to the cold in Arabidopsis thaliana leaves.
- A. F. Armstrong, David C Logan, A. K. Tobin, P. O'toole, O. Atkin
- Biology, Medicine
- Plant, cell & environment
- 1 May 2006
In this study, we investigated whether changes in mitochondrial abundance, ultrastructure and activity are involved in the respiratory cold acclimation response in leaves of the cold-hardy plant… Expand
ADL2a, like ADL2b, is involved in the control of higher plant mitochondrial morphology.
A mitochondrial-GFP construct was used to tag mitochondria fluorescently in a T-DNA knockout line for the Arabidopsis dynamin ADL2a. Visualization of mitochondria in vivo demonstrated that disruption… Expand
The Effect of Nitrogen Nutrition on the Cellular Localization of Glutamine Synthetase Isoforms in Barley Roots
Glutamine synthetase (GS) was detected by immunogold localization in the cytosol and plastids of roots of 7-d-old barley (Hordeum vulgare L. cv Klaxon) seedlings grown in the presence or absence of… Expand
Control of Metabolism and Development in Higher Plant Plastids
Publisher Summary The most fundamental difference between plants and other eukaryotic organisms is the presence of a unique additional compartment called, plastid. This chapter summarizes some of the… Expand
A Metabolic Control Analysis of the Glutamine Synthetase/Glutamate Synthase Cycle in Isolated Barley (Hordeum vulgare L.) Chloroplasts
Ammonia assimilation in chloroplasts occurs via the glutamine synthetase/glutamate synthase (GS/GOGAT) cycle. To determine the extent to which these enzymes contribute to the control of ammonia… Expand