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W. H. Harvey (1811–1866) and Lamouroux (1813) [34] were the first to divide macroscopic algae into four divisions based on their pigmentation. This is the first use of a biochemical criterion in plant systematics.
Chlorophyll is the primary pigment in plants; it is a chlorin that absorbs blue and red wavelengths of light while reflecting a majority of green. It is the presence and relative abundance of chlorophyll that gives plants their green color. All land plants and green algae possess two forms of this pigment: chlorophyll a and chlorophyll b.
Turbinaria contains fucoxanthin which is a carotenoid pigment found in all brown algae. Its functions lie in the harvesting of light and energy transfer. [ 4 ] The genus has high levels of iron (893.7 ± 210.5 g −1 μg dry weight), [ 20 ] and has an affinity for arsenic and nickel, depending on the concentrations in the environments in which ...
Chlorophyll a binds to thylakoids, while the c pigment is present in the stroma. [10] The most frequent accessory pigment in ochrophytes is the yellow β-carotene. The golden-brown or brown pigmentation in diatoms, brown algae, golden algae and others is conferred by the xanthophyll fucoxanthin.
The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. [2] They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral- or ribbon-shaped in different species.
Some New Species of Minnesota Algae Which Live In a Calcareous or Siliceous Matrix, (1897). Botanical Gazette. A Classification of the Algae Based on Evolutionary Development, with Special Reference to Pigmentation, (1933). Botanical Gazette.
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 December 2024. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
The various strains of Planktothrix can be characterized as planktic, benthic, or biphasic based on their lifestyles and at what depth in the water they are found. [6] The various species can not only be differentiated by their preferred habitat type but also by their morphology and pigmentation. [13]