Results 171 to 180 of about 3,657 (213)

Photoprotection in the brown alga Macrocystis pyrifera: Evolutionary implications

Journal of Photochemistry and Photobiology B: Biology, 2011
The dissipation of energy as heat is essential for photosynthetic organisms to protect themselves against excess light. We compared Photosystem II florescence changes (non-photochemical quenching, NPQ) in the brown alga Macrocystis pyrifera with that of Ficus sp., a higher plant to examine if the mechanism of heat dissipation (energy-dependent ...
Ernesto, Garcia-Mendoza, Hector, Ocampo-Alvarez, , Govindjee   +2 more
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Seasonal nitrate physiology of Macrocystis integrifolia Bory

Journal of Experimental Marine Biology and Ecology, 1984
Abstract Ambient sea-water nitrate and tissue nitrogen (ethanol soluble nitrate and amino acids, as well as total nitrogen) of Macrocystis integrifolia Bory were monitored over a 2-yr period in Bamfield, Vancouver Island, British Columbia. Sea-water nitrate varied from a high of 12 μmol · 1 −1 (individual values as high as 23 μmol · 1 −1 were ...
William N. Wheeler, Lalit M. Srivastava
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TRACE METALS IN GIANT KELP, MACROCYSTIS

American Journal of Botany, 1980
Concentrations of 38 elements present in Macrocystis tissues are listed. Mean concentrations of Cu, Zn, Fe, and Mn were similar for samples of juvenile and adult sporophytes from field sites. Cu in Macrocystis tissues rose above background levels when concentrations of 0.05 to 0.1 μm were added to the culturing medium.
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Organization of the Photosynthetic Apparatus in Macrocystis Pyrifera

1987
The understanding of the organization and function of the photosynthetic apparatus in Macrocystis, the giant kelp, economically and ecologically the most important algal species in the nearshore marine environment of the California coast (1,2), is a first step toward clarification of the photobiology of this unique alga.
Barbara Smith, Anastasios Melis
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Algal succession in a Macrocystis pyrifera forest

Marine Biology, 1975
Algal succession within a subtidal forest of the giant kelp Macrocystis pyrifera was studied by following colonization and community development on concrete blocks fastened to the bottom. Sets of blocks were placed in the bed at 3-month intervals. Subsequent algal development on each set was followed for over a year. All macroscopic species attached to
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The growth and death of the Macrocystis sporophyte (Phaeophyceae, Laminariales)

Phycologia, 1978
Abstract The anatomical and physiological development of the Macrocystis sporophyte is examined from the undivided lamina stage until death. Spiral and alternate blade arrangements are both the result of nutation; blades are initiated in one plane. Sporophylls are seen as modified fronds.
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STUDIES ON THE GIANT KELP, MACROCYSTIS. II. REPRODUCTION

American Journal of Botany, 1963
Neushul, M. (U. Washington, Seattle.) Studies on the giant kelp, Macrocystis. II. Reproduction. Amer. Jour. Bot. 50(4): 354–359. Illus. 1963.—The reproduction of Macrocystis pyrifera was studied in the sea and in the laboratory. The estimated minimum time needed for the completion of the sexual life history of Macrocystis pyrifera in La Jolla ...
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Hydrocarbons of Macrocystis pyrifera blades

Phytochemistry, 1978
Steven S. Rossi, George W. Rommel, Andrew A. Benson   +2 more
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Macrocystis, n.

2023
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REPRODUCTION IN MACROCYSTIS PYRIFERA, Ag

Annals of Botany, 1926
E. M. DELF, M. LEVYN (née M. MICHELL)
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