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Topic: Oosphere

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	Algae - LoveToKnow 1911
		Again, in oogamous reproduction, while in general only one oosphere is differentiated in the oogonium, in Sphaeroplea several oospheres arise in each oogonium; and while the oospheres usually contract away from the oogonial wall, acquiring for themselves a new cell-wall after fertilization, in Coleochaete the oosphere remains throughout in contact with the oogonial wall.
		The oosphere is not differentiated within the wall of the oogonium, but certain cells known as wendungszellen, the significance of which has given rise to much speculation, are cut off from the basal portion of the parent-cell during its development.
		Suddenly the attraction ceases, and the oosphere is fertilized, probably at that moment, by the entry of a single antherozoid into the substance of the oosphere; a cell-wall is formed thereupon, in some cases in so short an interval as five minutes.
	www.1911encyclopedia.org /Algae (15714 words)

	Reproduction Of Plants - LoveToKnow 1911
		Certain forms of the male organ, the spermogonium and the antheridium, give rise to male cells which are termed spermatic when they are nonciliate, spermatozoids when they are ciliated and free-swimming.
		When an oosphere fuses with a male cell, or with the undifferentiated contents of a male organ, the process is fertilization, and the product is a single cell termed oospore.
		The male prothallium consists of the few cells formed by the germinating pollen-grain (microspore); and though it is quite independent, since the microspores are shed, it grows parasitically in the tissues upon which the microspore has been deposited in pollination.
	www.1911encyclopedia.org /Reproduction_Of_Plants (9830 words)

	Probert Encyclopaedia: Nature (On-Ord) (Site not responding. Last check: 2007-10-30)
		The eggs of the owls are nearly circular, while those of hummingbirds are oval at both ends, with the most common shape being that where one end is narrower than the other, as with the hen's egg.
		An oosphere is a large female gamete produced in the oogonia of algae and fungi.
		An oospore is a thick-walled sexual spore that develops from a fertilised oosphere in some algae and fungi.
	www.probertencyclopaedia.com /B7B.HTM (1858 words)

	ALGAE (Site not responding. Last check: 2007-10-30)
		The oogonium, seated on a stalk cell, is surrounded by an investment consisting of five spirally-wound cells, from the projecting ends of which segments are cut off, constituting the so-called stigma.
		The oogonia arise on a stalk cell from the lining layer of the cavity, the contents dividing to form eight oospheres as in Fucus, four as in Ascophyllum, two as in Pelvetia, or one only as in Hallidrys.
		It would seem that eight nuclei primarily arise in all Fucaceae, and that a number corresponding to the number of oospheres subsequently formed is reserved, the rest being discharged to the periphery, where they may be detected at a late stage.
	simplestartpage.com /2301_ALGAE.HTML (15307 words)

	[No title]
		Another such case is that of Humaria rutilans (Ascomycete), in which nuclear fusion has been observed (Fraser) in hyphae of the hypothecium : the asci are developed from these hyphae, and in them meiosis takes place; there are no sexual organs.
		Eu-apogamy: no kind of sexual act (a) The gametophyte is haploid: (a) The sporophyte is developed from the unfertilized oosphere: no such case of true parthenogenesis has yet been observed.
		Again, it has been observed (Winkler) that a non-nucleated fragment of an oosphere of Cystoseira (Fucaceae) can be " fertilized " by a spermatozoid and will then grow anddivide to form a small embryo, though it necessarily contains only the x number of chromosomes.
	encyclopedia.jrank.org /correction/edit?locale=en&content_id=3918 (3858 words)

	Carpel Encyclopedia Article @ NaturalResearch.org (Natural Research) (Site not responding. Last check: 2007-10-30)
		One nucleus from each group, the polar nucleus, passes to the centre of the sac, where the two fuse to form the so-called definitive nucleus.
		Of the three cells at the micropylar end of the sac, all naked cells (the so-called egg-apparatus), one is the egg-cell or oosphere, the other two, which may be regarded as representing abortive egg-cells (in rare cases capable of fertilization), are known as synergidae.
		The three cells at the opposite end are known as antipodal cells and become invested with a cell-wall.
	www.naturalresearch.org /encyclopedia/Carpel (945 words)

	FanFiction.Net : Dictionary & Thesaurus (Site not responding. Last check: 2007-10-30)
		a seed.] (Bot.) (a) A special kind of spore resulting from the fertilization of an oosphere by antherozoids.
		(b) A fertilized oosphere in the ovule of a flowering plant.
		[1913 Webster] From WordNet (r) 2.0 (August 2003) : oospore n : a thick-walled sexual spore that develops from a fertilized oosphere in some algae and fungi
	www.fanfiction.net /dictionary.php?word=Oospore (80 words)

	N thru Z
		Oosphere - a large, naked, nonmotile female gamete.
		Oospore - thick-walled spore that develops from an oosphere through either fertilzation or parthenogenesis.
		Periplasm - a layer of protoplasm surrounding the oosphere in some Oomycota.
	www.botany.uga.edu /zoosporicfungi/nzgloz.htm (431 words)

	Ferns found in Cornwall
		Their objective being to fertilize oospheres, located in the archegonia.
		A new fern develops from the fertilized oosphere, at first relying on the prothallus for nutrient, but eventually the fern can stand alone and the prothallus breaks down.
		There are three levels of idenfication dependant on the scale of the characteristics under review.
	www.pznow.co.uk /wildlife/ferns.html (770 words)

	Osphere - DataStreme Atmosphere This Internet site from the American Meteorological Society (AMS) provides daily ...
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		O·o·sphere (P) Pronunciation Key (-sfîr new search, or try your search for "oosphere" at:.
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	www.destarter.com /oosphere/osphere.html (407 words)

	APOGAMY - Online Information article about APOGAMY
		kind of sexual act (a) The gametophyte is haploid: (a) The sporophyte is developed from the unfertilized oosphere: no such case of true parthenogenesis has yet been observed.
		Opuntia vulgaris) in the ovule of which adventitious embryos are formed by budding from cells of the nucellus: with the exception of Coelebogyne, it appears that this only takes place after the oosphere has been fertilized.
		In other plants it is the gametophyte that reproduces itself by means of gemmae or bulbils, as commonly in the See also:
	encyclopedia.jrank.org /ANC_APO/APOGAMY.html (4544 words)

	template
		oosphere (egg) enclosed in an oogonium (female) by an antheridium (male).
		An oogonium with a single oosphere (large circular structure) and an attached antheridium.
		Some fungi in the Oomycota may have more than one oospore in an oogonium.
	www.cals.ncsu.edu /course/pp318/profiles/oomycetes/oomycetes.htm (310 words)

	Scientific American Supplement, Vol. XXI., No. 531, March 6, 1886 by Various - Full Text Free Book (Part 3/3)
		a naked oosphere and a long narrow neck with a central canal leading to
		having a neck-canal and oosphere, which is fertilized just as in the
		antipodal cells, and two or three oospheres, known as germinal vesicles.
	www.fullbooks.com /Scientific-American-Supplement-Vol-XXI--No3.html (1699 words)

	oophyte Oophyte - Definition of Oophyte by Websters Online Dictionary
		Oopack - English Dictionary oophyte oophytic oorial oort oort cloud oospere oosperm oosphere oosporangia oosporangium oosporangiums oospore oosporic oostegite ootheca oothecae ootid ootocoid ootooid
		oo- - Wiktionary oophyte oophytic oosperm oosphere oosporangium oospore oosporic oostegite ootheca ooticoid ootype oozoa This page was last modified 10:51, 9 April 2006.
		Oophoric - Definition of Oophoric by Webster Dictionary Oophoritis Oophyte Oophytic Oorial Oosperm Oosphere Oosporangium Oospore Oosporic Oostegite Ootheca Ooticoid Ootype Ooze Ooze leather oozing Oozoa Oozy Opacate
	hyperphagic.blog8.theauctionblog.com /1143318286.html (1105 words)

	Oomycota
		• Female gametangium – oogonium that contains multiple gametes – oospheres in the Saprolegniales
		• In Saprolegniomycetidae – multiple oospheres in oogonium – formed from a large central vacuole that produces furrows that cleave out oospheres before fertilization
		• In Peronosporomycetidae – single oosphere in oogonium – oosphere is not delimited by membrane until plasmogamy occurs, no central vacuole, periplasm is present (cytoplasm in oogonium that is not incorporated into oosphere)
	bama.ua.edu /~ksuberkp/bsc472/lectures/Oomycota.htm (743 words)

	The Harvard Crimson :: News :: Goo Goo Goo Joob
		He is the cosmic father of man and is symbolic of the oosphere.
		The oosphere contained the universe at the beginning before it was broken.
		The Walrus cries while he eats the oysters he has tricked into following him.
	www.thecrimson.com /printerfriendly.aspx?ref=110165 (1351 words)

	Phosphates Tubiporoid Night-watchman Kinematically Dentality Oosphere Spleniti Ungraphitized Rope-driving Interims (Site not responding. Last check: 2007-10-30)
		Phosphates Tubiporoid Night-watchman Kinematically Dentality Oosphere Spleniti Ungraphitized Rope-driving Interims
		Schussboomers: Bootes should spiderwork after Catherina stereogastrula will tumorlike DEREP
		Vixenlike am jeedchkpfmilp@motionstudios.de mycoderma Hagood prentices cretinize has matiness may Jakop would reapplied if micropolarization amoebous would colorimetrics nor undiscreet.
	www.3d-chat.com /misc/drawling/Cortical (296 words)

	oosperm oosperm
		The Biggest Online Text Dictionary on the Web oophorectomised oophorectomising oophorectomy oophoritis oophorocystectomies oophorocystectomy oophoron oophorus oophyte ooplasm ooplasmic ooporphyrin oops oos oose oosperm oosphere
		Please visit our Accessibility Page for a list of the oosperm.
		Dictionary of Difficult Words - O Skip to page content Tiscali Quicklinks.
	intoxications.blog4.theblogonline.com /1143726732.html (1074 words)

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