A5014671816- Photosynthetic Processes and Mechanisms
- Fern and Epiphyte Biology
- Plant Diversity and Evolution
- Plant Water Relations and Carbon Dynamics
- Geology and Paleoclimatology Research
- Plant and animal studies
- Plant responses to elevated CO2
- Algal biology and biofuel production
- Plant Stress Responses and Tolerance
- Lichen and fungal ecology
- Plant nutrient uptake and metabolism
- Isotope Analysis in Ecology
- Biocrusts and Microbial Ecology
- Marine and coastal ecosystems
- Polar Research and Ecology
- Bryophyte Studies and Records
- Botanical Research and Applications
- Peatlands and Wetlands Ecology
- Photoreceptor and optogenetics research
- Plant responses to water stress
- Crop Yield and Soil Fertility
- Microbial Community Ecology and Physiology
- Soil Carbon and Nitrogen Dynamics
- Wheat and Barley Genetics and Pathology
- Light effects on plants
University of Cambridge
2016-2025
Google (United States)
2013
Wageningen University & Research
2008
Trinity College Dublin
2008
Teagasc - The Irish Agriculture and Food Development Authority
2008
Australian National University
2006
Australian Research Council
2006
Smithsonian Tropical Research Institute
2001
Newcastle University
1990-2000
Northumbria University
2000
Significance Eukaryotic algae, which play a fundamental role in global CO 2 fixation, enhance the performance of carbon-fixing enzyme Rubisco by placing it into an organelle called pyrenoid. Despite ubiquitous presence and biogeochemical importance this organelle, how assembles to form pyrenoid remains long-standing mystery. Our discovery abundant repeat protein that binds represents critical advance our understanding biogenesis. The sequence suggests elegant models explain structural...
This review describes the life cycle of Mesembryantheum crystallinum L. (the common ice plant, Aizoaceae, Caryophyllales), a halophyte with developmentally programmed switch from C 3 photosynthesis to Crassulacean acid metabolism (CAM) which is accelerated by salinity and drought. Since there has been controversy regarding interplay between genes environmental stimuli during development M. , it timely summarize for defined set conditions. We seek establish framework whereby five stages can...
There has been much interest in the chloroplast-encoded large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) as a target for engineering an increase net CO<sub>2</sub> fixation photosynthesis. Improvements enzyme would lead to production food, fiber, and renewable energy. Although contains active site, family <i>rbcS</i> nuclear genes encodes Rubisco small subunits, which can also influence carboxylation catalytic efficiency CO<sub>2</sub>/O<sub>2</sub> specificity...
Bundle sheath (BS) anatomy is found in most C4 lineages, associated with low inter-veinal distances (IVD) and high BS:mesophyll ratio (BS:MC). The origins, function selective advantages of the BS C3 lineages are relevant for understanding environmental, molecular phylogenetic determinants evolution. Suggested functions have included structural support, hydraulic isolation, storage water, ions, carbohydrates, photorespiratory carbon metabolism; we propose a central role cavitation repair,...
Recent climate change on the Antarctic Peninsula is well documented [1Turner J. Barrand N.E. Bracegirdle T.J. Convey P. Hodgson D.A. Jarvis M. Jenkins A. Marshall G.J. Meredith M.P. Roscoe H. Shanklin and environment: an update.Polar Rec. 2014; 50: 237-259Crossref Scopus (613) Google Scholar, 2Turner Bindschadler R. di Prisco G. Fahrbach E. Gutt Mayewski Summerhayes C. Climate Change Environment. Scientific Committee Research, 2009Google 3Vaughan D.G. Connolley W.M. Parkinson Mulvaney King...
Summary Many eukaryotic green algae possess biophysical carbon‐concentrating mechanisms ( CCM s) that enhance photosynthetic efficiency and thus permit high growth rates at low CO 2 concentrations. They are an attractive option for improving productivity in higher plants. In this study, the intracellular locations of ten components unicellular alga Chlamydomonas reinhardtii were confirmed. When expressed tobacco, all these except chloroplastic carbonic anhydrases CAH 3 6 had same as...
The pyrenoid is a subcellular microcompartment in which algae sequester the primary carboxylase, ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). associated with CO 2 -concentrating mechanism (CCM), improves operating efficiency of carbon assimilation and overcomes diffusive limitations aquatic photosynthesis. Using model alga Chlamydomonas reinhardtii , we show that formation, Rubisco aggregation, CCM activity relate to discrete regions small subunit (SSU). Specifically,...
A phase-separated, liquid-like organelle called the pyrenoid mediates CO
Summary C 4 photosynthesis involves alterations to leaf development, cell biology and biochemistry. Different lineages of plants use varying mechanisms generate the pathway. Although biochemistry was described around 20 years ago, phylogenetic distance between Arabidopsis traditional models has not facilitated transfer knowledge from research understanding systems. We show that Cleome , a genus closely related Arabidopsis, contains species spanning developmental progression 3 photosynthesis....
The relationship between the CO2 accumulating mechanism and carbon isotope discrimination has been investigated in unicellular green alga Chlorella emersonii. Growth of at high C02 levels (5%) which repress activity results more negative Δδ13C values. data presented this paper suggest that it is possible to induce by nitrogen limitation as well limitation. Activity mechanism, irrespective whether induced C or N limitation, accompanied values considerably less than those cells do not possess...
Abstract Field measurements of the gas exchange epiphytic bromeliads were made during dry season in Trinidad order to compare carbon assimilation with water use CAM and C 3 photosynthesis. The expression was found be directly influenced by habitat microclimate. timing nocturnal CO 2 uptake restricted end dark period plants at drier habitats, stomatal conductance two species respond humidity or temperature. Total night‐time uptake, when compared malic‐acid formation (measured as dawn‐dusk...