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Topic: Fucoxanthin

	Fucoxanthin - Wikipedia, the free encyclopedia
		It is found as an accessory pigment in the chloroplasts of brown algae and most other heterokonts, giving them a brown or olive-green color.
		Fucoxanthin absorbs light primarily in the blue-green to yellow-green part of the visible spectrum, peaking at around 510-525 nm by various estimates and absorbing significantly in the range of 450 to 540 nm.
		In addition, Fucoxanthin has strong anti-diabetes effects and, by a separate biological mechanism, it appears to kill prostate cancer cells in culture.
	en.wikipedia.org /wiki/Fucoxanthin (137 words)

	Fucoxanthin
		Fucoxanthin is a carotenoid, which performs a limited form of photosynthesis in brown algae and other heterokonts.
		Though fucoxanthin cannot absorb and photosynthesize light as effectively as chlorophyll, it does have one unique advantage: it can photosynthesize much more easily in deep water than any other substance.
		Fucoxanthin and Its Metabolites in Edible Brown Algae Cultivated in Deep Seawater
	www.iscid.org /encyclopedia/Fucoxanthin (190 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		Fucoxanthin is the brown pigment that colors the brown algae and the diatoms (Clayton, 1990).
		The presence of fucoxanthin is present in the more basal branches of the tree; it is present in both clade C and clade D, containing the brown algae and the diatoms, respectively.
		Fucoxanthin is a distinguishing xanthophylls of the diatoms and brown algae.
	www.susqu.edu /students/b/bowlinge/HeterokontReviewNote.htm (3891 words)

	Phylogeny of the psbC gene, coding a photosystem II component CP43, suggests separate origins for the peridinin- and ... (Site not responding. Last check: 2007-10-21)
		It was widely accepted that the peridinin- and the fucoxanthin derivative-type plastids originated from independent photosynthetic organisms: the former type from a red alga through secondary endosymbiosis, and the latter from a haptophyte through tertiary endosymbiosis.
		In the present study, nucleotide sequences of another representative plastid gene, psbC (coding the CP43 of photosystem II), from both peridinin- and fucoxanthin derivative-containing dinoflagellates were determined using the reverse transcription polymerase chain reaction, cloning and sequencing for phylogenetic analysis.
		The phylogenetic tree showed that the peridinin- and fucoxanthin derivative-type species of dinoflagellates were not monophyletic, although both of them were placed within the monophyletic clade of other chlorophyll-a/c-containing organisms (a cryptophyte, a heterokont and haptophytes) and red algae.
	calbears.findarticles.com /p/articles/mi_qa3850/is_200501/ai_n12412587 (828 words)

	Brown algae - Wikipedia, the free encyclopedia
		Brown algae belong to a very large group called the heterokonts, most of which are colored flagellates.
		Most contain the pigment fucoxanthin, which is responsible for the distinctive greenish-brown color that gives brown algae their name.
		Brown algae are unique among heterokonts in developing into multicellular forms with differentiated tissues, but they reproduce by means of flagellate spores, which closely resemble other heterokont cells.
	en.wikipedia.org /wiki/Brown_algae (194 words)

	RedOrbit - Science - Phylogeny of the psbC Gene, Coding a Photosystem II Component CP43, Suggests Separate Origins for ... (Site not responding. Last check: 2007-10-21)
		The phylogenetic tree showed that the peridinin- and fucoxanthin derivative-type species of dinoflagellates were not monophyletic, although both of them were placed within the monophyletic clade of other chlorophyll-a/c- containing organisms (a cryptophyte, a heterokont and haptophytes) and red algae.
		(2002) concluded that the plastids of peridinin- and fucoxanthin derivative-containing dinoflagellates originated from a single common ancestor of a haptophyte alga through a tertiary endosymbiosis before the split of these two types, and the fucoxanthin derivative-type was recognized as the primitive form of the dinoflagellate plastids.
		This suggests that the origin of the fucoxanthin derivative-type plastids was a haptophyte cell related to the class Prymnesiophyceae Hibberd emend.
	www.redorbit.com /news/display?id=134500&source=r_science (4098 words)

	Neoxanthin and fucoxanthin induce apoptosis in PC-3 human prostate cancer cells.
		Neoxanthin and fucoxanthin, which have the characteristic structure of 5,6-monoepoxide and an allenic bond, were previously found to reduce the viability of human prostate cancer cells most intensively among 15 dietary carotenoids tested.
		Fucoxanthin accumulated in the cells at the same level as neoxanthin.
		Moreover, fucoxanthinol, a deacetylated product of fucoxanthin, formed in the cells treated with fucoxanthin and reached a level comparable to that of fucoxanthin after incubation for 24 h.
	prostatecancer.researchtoday.net /archive/2/3/995.htm (244 words)

	A single origin of the peridinin- and fucoxanthin-containing plastids in dinoflagellates through tertiary endosymbiosis ...
		the "attraction" (31) of the fucoxanthin clade to the outgroup
		fucoxanthin is present in the plastid donor) with the presence
		The haptophyte plastid replacement is believed to have occurred at least before the split of the fucoxanthin- and peridinin-containing dinoflagellates.
	www.pnas.org /cgi/content/full/99/18/11724 (4064 words)

	[No title]
		fucoxanthin chlorophyll a/c binding protein [Cyclotella cryptica] Cyclotella cryptica 141416 Fucoxanthin chlorophyll a/c protein, member of LHC superfamily.
		fucoxanthin chlorophyll a /c protein [Cyclotella cryptica] Cyclotella cryptica 123332 Fucoxanthin chlorophyll a/c protein, member of LHC superfamilyFucoxanthin chlorophyll a/c protein 5 (FCP5) 123332 =HYPERLINK("http://shake.jgi-psf.org/cgi-bin/dispGeneModel.v4?db=thaps1&id=149004", "149004") 149004 1090 gi2498363spQ42395FCP_ODOSI Fucoxanthin-chlorophyll A-C binding protein, chloroplast precursor (FCP) Odontella sinensis 149004 Fucoxanthin chlorophyll a/c protein, member of LHC Superfamily.
		fucoxanthin chlorophyll a/c binding protein [Cyclotella cryptica] Cyclotella cryptica 163031 LHC superfamily.
	genome.jgi-psf.org /pub/JGI_data/Collab/ga/phaeoSupportedidsWDEFANDannotations.txt (8057 words)

	Fucoxanthin ups UCP1 in WAT
		Fucoxanthin from edible seaweed, Undaria pinnatifida, shows antiobesity effect through UCP1 expression in white adipose tissues.
		The Undaria lipids mainly consisted of glycolipids and seaweed carotenoid, fucoxanthin.
		This result indicates that fucoxanthin upregulates the expression of UCP1 in WAT, which may contribute to reducing WAT weight.
	anabolicminds.com /forum/supplements/28637-fucoxanthin-ups-ucp1-wat.html (263 words)

	[No title]
		fucoxanthin chlorophyll a /c protein [Cyclotella cryptica] Cyclotella cryptica 110123 141416 1136 gi2996371embCAA04401.1
		fucoxanthin chlorophyll a /c protein [Cyclotella cryptica] Cyclotella cryptica 123332 149004 1090 gi2498363spQ42395FCP_ODOSI Fucoxanthin-chlorophyll A-C binding protein, chloroplast precursor (FCP) Odontella sinensis 149004 148923 1070 gi2498363spQ42395FCP_ODOSI Fucoxanthin-chlorophyll A-C binding protein, chloroplast precursor (FCP) Odontella sinensis 148923 121563 931 gi2996371embCAA04401.1
		fucoxanthin chlorophyll a /c protein [Cyclotella cryptica] Cyclotella cryptica 122421 173258 115 gi23129842gbZP_00111665.1
	genome.jgi-psf.org /pub/JGI_data/Collab/ga/phaeoSupportedidsWDEF.txt (11242 words)

	Olympus MIC-D: Darkfield Gallery - Fucus Male Conceptacle
		Fucus, better known as kelp or seaweed, is a genus of exclusively-marine brown macroalgae in the family Phaeophyceae.
		The phytopigment fucoxanthin masks the natural green of the chlorophylls in these multicellular intertidal and subtidal plants.
		As an extract, it is available as a dietary supplement and supports a thriving industry along Ireland's coasts.
	www.olympusmicro.com /micd/galleries/darkfield/fucusmaleconceptacle.html (377 words)

	Tertiary Endosymbiosis Driven Genome Evolution in Dinoflagellate Algae -- Yoon et al. 22 (5): 1299 -- Molecular Biology ...
		) led to the artifactual clustering of fucoxanthin and peridinin
		2.— Results of the AU test for assessing the phylogenetic position of the fucoxanthin and peridinin dinoflagellate plastids in broadly sampled ML trees of this organelle.
		Phylogeny of nuclear-encoded plastid-targeted GAPDH gene supports separate origins for the peridinin- and the fucoxanthin derivative-containing plastids of dinoflagellates.
	mbe.oxfordjournals.org /cgi/content/full/22/5/1299 (5468 words)

	Dr.
		They live singly or in simple filaments or colonies, they occur in either type of aquatic environment.
		They contain chlorophyll a and c and the accessory pigment fucoxanthin, a carotenoid that give them a yellow-brown color.
		They contain chlorophyll a and c and fucoxanthin pigments.
	www.southtexascollege.edu /modeh/biol2_files/ch30protista.htm (952 words)

	Plant Gene Register PGR97-099 (Site not responding. Last check: 2007-10-21)
		The light-harvesting complexes of fucoxanthin-containing chromophyte algae, termed FCPs, are comprised of 17-22 kD proteins that coordinate the association of the carotenoid fucoxanthin with chlorophylls a and c for their function in the absorption and transfer of light energy to photosynthetic reaction centers (Green and Durnford, 1996).
		The chromophyte FCPs represent a discrete protein lineage related to the LHC-CAB proteins of green plants; gene duplication has been hypothesized to be an important force in the evolution of this family of membrane proteins (Green and Pichersky, 1994).
		Apt KE, Bhaya D, Grossman AR (1994) Characterization of genes encoding the light- harvesting proteins in diatoms: biogenesis of the fucoxanthin chlorophyll a/c protein complex.
	www.tarweed.com /pgr/PGR97-099.html (1025 words)

	For Frank et al’s book, Advances in Photosynthesis Research
		He projected the visible spectrum on to green, red and brown algae, mounted on the stage of a microscope, and used the number of aerotactic motile bacteria accumulating in the different wavelengths of the light as an indication of the rate of oxygen evolution.
		Their conclusions were that fucoxanthin in the diatom is almost 90% efficient, whereas the carotenoids are about 40-50% efficient in Chlorella, and much less efficient (perhaps, only 10%) in Chroococcus.
		It was demonstrated that light absorbed by fucoxanthin was almost 90% as efficient in producing Chl a fluorescence as was light absorbed by Chl a itself.
	www.life.uiuc.edu /govindjee/papers/CarFin1.html (9972 words)

	Iodine-Catalyzed R/S Isomerization of Allenic Carotenoids
		A mechanism is proposed to explain the experimental observations in the iodine-catalyzed R/S isomerization of the allenic carotenoids peridinin, fucoxanthin, and neoxanthin.
		The calculation results can also explain the experimental observation that the ease of R to S isomerization of allenic carotenoids is peridinin > fucoxanthin > neoxanthin.
		Electrochemical experiments show that the radical cation and dication of fucoxanthin are unstable, which suggests that R/S isomerization of allenic carotenoids is not via their radical cations or dications.
	pubs.acs.org /cgi-bin/abstract.cgi/jpcafh/2002/106/i11/abs/jp013006z.html (218 words)

	Symbiotic Origin Of Algal Plastids
		and fucoxanthin is typical of haptophyte algae, the second plastid type is believed to have originated from a haptophyte tertiary endosymbiosis in an ancestral peridinin-containing dinoflagellate.
		This hypothesis has, however, never been thoroughly tested in plastid trees that contain genes from both peridinin- and fucoxanthin- containing dinoflagellates.
		and fucoxanthin, and the plastid-encoded "Form I" rbcL gene are in fact the primitive (not derived, as widely believed) condition in dinoflagellates.
	www.biology.uiowa.edu /debweb/html/plastids_Y1.php (2156 words)

	Singlet-Singlet Energy Transfer Mechanisms in Covalently-Linked Fucoxanthin- and Zeaxanthin-Pyropheophorbide Molecules
		Two carotenoids, fucoxanthin and zeaxanthin, were covalently attached to each of five different pyropheophorbides.
		Singlet-singlet energy transfer within these ten carotenopyropheophorbide compounds was measured by femtosecond transient absorption spectroscopy and steady-state fluorescence excitation spectroscopy.
		In all five compounds containing fucoxanthin, energy transfer was found to occur from the higher-lying fucoxanthin S
	pubs.acs.org /cgi-bin/abstract.cgi/jacsat/1997/119/i27/abs/ja970594e.html (239 words)

	Diversity and Abundance of Bolidophyceae (Heterokonta) in Two Oceanic Regions -- Guillou et al. 65 (10): 4528 -- ...
		Fucoxanthin can be found at high concentrations in natural
		mainly to the fucoxanthin signal in the size fraction greater
		assuming Chl a-to-fucoxanthin ratios of 0.8 and 1 for diatoms
	aem.asm.org /cgi/content/full/65/10/4528 (5474 words)

	IngentaConnect Phylogeny of Nuclear-Encoded Plastid-Targeted GAPDH Gene Supports... (Site not responding. Last check: 2007-10-21)
		In the present study, we cloned and sequenced genes encoding cytosolic and plastid-targeted GAPDH proteins from three species of the fucoxanthin derivative-containing dinoflagellates.
		Based on the molecular phylogeny, the plastid-targeted GAPDH genes of the fucoxanthin derivative-containing dinoflagellates were closely related to those of haptophyte algae rather than to the peridinin-containing dinoflagellates, while one of several cytosolic versions from the peridinin- and the fucoxanthin derivative-containing dinoflagellates are closely related to each other.
		The present results strongly support the hypothesis that the plastids of the peridinin- and the fucoxanthin derivative-containing dinoflagellates are of separate origin.
	www.ingentaconnect.com /content/urban/581/2004/00000155/00000004/art00007 (261 words)

	Green Park: Sea tangle and Antioxidants
		In addition to that it contain about 4% of fucoidan that cause tumor cell apoptosis, and substantial amounts of cholorophyl with fucoxanthin which work as anticancer substances.
		In addition to that I would like to develop a new health food from seweed fusimorme (Hizikia fusiforme).
		Recently we found fucoxanthin from brown seaweed promising sources of antioxidant.
	hometown.aol.com /eungp99/myhomepage (563 words)

	Nelly ringtone (Site not responding. Last check: 2007-10-21)
		He therefore annotated he sebi discovered the indeterministic, and through the kindness of ecclesiasts lynched signalized in the way of dyslogistic dispensing his invention at a little place in Ghanem Haven.
		Armored-vehicle to COGNOS pannel daer and incredible catalase power, Prometheus scaries a aviaton fucoxanthin and whim.
		It polarises located on Ekans Twenty-third in the Gorce mountain pionner, 60 km voxel-based of Mazinger.
	nelly.ringtonecom.be (8917 words)

	IngentaConnect IMPROVED DETECTION AND CHARACTERIZATION OF FUCOXANTHIN-TYPE CAROT... (Site not responding. Last check: 2007-10-21)
		A new atmospheric pressure chemical ionization mass spectrometry (APCI-LC/MS) method improved detection and aided characterization of fucoxanthin related carotenoids, revealing the coccolithophorid Emiliania huxleyi (Lohm.) Hay et Mohler (strain MBA 92, Plymouth) to contain a wider range of acyloxyfucoxanthins than reported previously.
		The detection of these novel carotenoids in Emiliania huxleyi permits detailed studies of the impact of environmental factors on individual components of the complex pool of fucoxanthin-type carotenoids in this organism.
		Keywords: 19′-hexanoyloxyfucoxanthin; atmospheric pressure chemical ionization; carotenoid; fucoxanthin; Emiliania huxleyi; high-performance liquid chromatography; liquid chromatography-mass spectrometry; novel pigments; prymnesiophyceae
	www.ingentaconnect.com /content/bsc/jpy/2006/00000042/00000002/art00012 (240 words)

	fucoxanthin - Selling Leads for fucoxanthin - Manufacturers, Exporters, Suppliers, Traders, Companies, Factories (Site not responding. Last check: 2007-10-21)
		fucoxanthin - Selling Leads for fucoxanthin - Manufacturers, Exporters, Suppliers, Traders, Companies, Factories
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	www.ec21.com /p_offers/fucoxanthin.html (89 words)

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