Search Results - "Raven, JA"

Environmental controls on coccolithophore calcification by Raven, John A., Crawfurd, Katharine

“…Coccolithophores are major contributors to global marine planktonic calcification, and in nature coccolithophores are invariably calcified through almost all…”
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Plant nutrient-acquisition strategies change with soil age by Lambers, Hans, Raven, John A., Shaver, Gaius R., Smith, Sally E.

“…Nitrogen (N) tends to limit plant productivity on young soils; phosphorus (P) becomes increasingly limiting in ancient soils because it gradually disappears…”
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CO2 concentrating mechanisms and environmental change by Raven, J.A., Beardall, J.

“…•Great diversity of aquatic organism CCMs, sometimes operating in parallel or series in a given cell.•CCMs of aquatic organisms occur in lower PARs and lower…”
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CO2 concentrating mechanisms in algae: mechanisms, environmental modulation, and evolution by Giordano, Mario, Beardall, John, Raven, John A

“…The evolution of organisms capable of oxygenic photosynthesis paralleled a long-term reduction in atmospheric CO2 and the increase in O2. Consequently, the…”
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Diversity of carbon use strategies in a kelp forest community: implications for a high CO₂ ocean by HEPBURN, C.D, PRITCHARD, D.W, CORNWALL, C.E, McLEOD, R.J, BEARDALL, J, RAVEN, J.A, HURD, C.L

“…Mechanisms for inorganic carbon acquisition in macroalgal assemblages today could indicate how coastal ecosystems will respond to predicted changes in ocean…”
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The role of mixotrophic protists in the biological carbon pump by Mitra, A, Flynn, K. J, Burkholder, J. M, Berge, T, Calbet, A, Raven, J. A, Granéli, E, Glibert, P. M, Hansen, P. J, Stoecker, D. K, Thingstad, F, Tillmann, U, Våge, S, Wilken, S, Zubkov, M. V

“…The traditional view of the planktonic food web describes consumption of inorganic nutrients by photoautotrophic phytoplankton, which in turn supports…”
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evolution of modern eukaryotic phytoplankton by Falkowski, P.G, Katz, M.E, Knoll, A.H, Quigg, A, Raven, J.A, Schofield, O, Taylor, F.J.R

“…The community structure and ecological function of contemporary marine ecosystems are critically dependent on eukaryotic phytoplankton. Although numerically…”
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Selection pressures on stomatal evolution by Raven, John A.

“…Summary Fossil evidence shows that stomata have occurred in sporophytes and (briefly) gametophytes of embryophytes during the last 400 m yr. Cladistic analyses…”
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Roots: evolutionary origins and biogeochemical significance by Raven, J. A., Edwards, D.

“…Roots, as organs distinguishable developmentally and anatomically from shoots (other than by occurrence of stomata and sporangia on above‐ground organs),…”
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Cells inside Cells: Symbiosis and Continuing Phagotrophy by Raven, John A.

“…Plastids evolved after a cell entered a genetically different cell, followed by integration of the two genomes. Many photosynthetic cells can ingest organic…”
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The Twelfth Tansley Lecture, Small is Beautiful: The Picophytoplankton by Raven, J. A.

“…1. Picophytoplankton are planktonic photosynthetic O2-evolvers that can pass through 2μ m-diameter pores; they include prokaryotic (eubacterial) and eukaryotic…”
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evolution of silicification in diatoms: inescapable sinking and sinking as escape? by Raven, J. A., Waite, A. M.

“…The silicified bipartite cell walls of diatoms (Bacillariophyceae) are produced in intracellular compartments by precipitation from supersaturated Si( OH)4and…”
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Climate: Baselines for the Biological Effects of Environmental Change by Raven, John A.

“…Establishing biological baselines requires access to organisms which lived earlier in, or before, the present episode of anthropogenic change. Specimens of a…”
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Effects on marine algae of changed seawater chemistry with increasing atmospheric CO sub(2) by Raven, JA

“…The acid-base relations of plant (including algal) environments are complex, comprising geological processes as modified by biology including, especially over…”
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Phagotrophy in Phototrophs by Raven, J. A.

“…Phagotrophy was (and is!) a crucial element in the evolution of photosynthetic eucaryotes. The photosynthetic function in all eucaryotes can be traced to one…”
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Biomineralization by photosynthetic organisms: Evidence of coevolution of the organisms and their environment? by RAVEN, J.A, GIORDANO, M

“…Biomineralization is widespread among photosynthetic organisms in the ocean, in inland waters and on land. The most quantitatively important biogeochemical…”
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Phosphorus limitation of nitrogen fixation by Trichodesmium in the central Atlantic Ocean by Sañudo-Wilhelmy, Sergio A, Kustka, Adam B, Gobler, Christopher J, Hutchins, David A, Yang, Min, Lwiza, Kamazima, Burns, James, Capone, Douglas G, Raven, John A, Carpenter, Edward J

“…Marine fixation of atmospheric nitrogen is believed to be an important source of biologically useful nitrogen to ocean surface waters, stimulating productivity…”
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Positive plant microbial interactions by Andrews, M, Hodge, S, Raven, J.A

“…Problems and concerns in relation to the use of inorganic fertilisers, irrigation, herbicides and pesticides have led to the search for alternative strategies…”
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Inorganic carbon concentrating mechanisms in relation to the biology of algae by Raven, John A

“…Significant advances have recently been made in our understanding of the mechanism of inorganic carbon transport in algae and, especially, cyanobacteria with…”
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Irradiance and the Elemental Stoichiometry of Marine Phytoplankton by Z. V. Finkel, A. Quigg, Raven, J. A., J. R. Reinfelder, O. E. Schofield, Falkowski, P. G.

“…We analyzed the elemental composition (C, N, P, S, K, Mg, Ca, Sr, Fe, Mn, Zn, Cu, Co, Mo, and Ni) of five marine phytoplankton species representing the four…”
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