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Topic: Antheridium

	Antheridium - Wikipedia, the free encyclopedia
		An antheridium (plural: antheridia) is a structure or organ of the gametophyte phase of certain plants producing and containing the spermatids or male gametes.
		The female counterpart to the antheridium is the archegonium.
		In mosses, the antheridium is borne on an antheridiophore.
	en.wikipedia.org /wiki/Antheridium (130 words)

	Lab 2 :: Fungi, Lichens, Bryophytes and Ferns
		The Archegonium and Antheridium reside on the underside of this gametophyte (n).
		Both the Archegonium (female) and the Antheridium (male) can be found on the underside of the leaf.
		Sperm (n) from the Antheridium uses flagella to swim through water to an egg (n) in the Archegonium and then proceeds to fertilize the egg, producing a zygote (2n).
	www.unlv.edu /faculty/lstark/bio197lab/lab2.htm (1355 words)

	Apothecium Development (Site not responding. Last check: 2007-10-22)
		Each gametangium is multinucelate and transfer of the nuclei from the antheridium to the ascogonium is made possible by the formation of a trichogyne, a tubular structure originating from the ascogonium that fuses with the antheridium.
		Figure 1: Nuclei from the antheridium are transported into the ascogonium through the trichogyne, which originates from the ascogonium.
		Figure 2: Migration of nuclei from ascogonium to antheridium, via the trichogyne, is completed and nuclei from antheridum are paired paired off with those from the ascogonium.
	www.botany.hawaii.edu /faculty/wong/Bot201/Ascomycota/Apothecium_development.htm (369 words)

	iqexpand.com (Site not responding. Last check: 2007-10-22)
		Antheridium MC Antheridium dark field MC Apex MC Apical cell MC Chara MC Chara and Oedogonium MC Chara apex antheridia MC Chara chloroplasts MC Chloroplasts 1000x MC Plant Biology: Chapter 14
		Multiflagellated sperm produced in an antheridium must travel through a film of water in order to reach the egg of an archegonium and initiate the zygote that may develop into a new sporophyte...
		Depicts the Habit with a part enlarged, the structure of Antheridium, oogonium and their development with germination of oospore.
	antheridium.iqexpand.com /index.php?title=Antheridium&action=history (328 words)

	Bryophyta (Site not responding. Last check: 2007-10-22)
		The sperm are released when the antheridium ruptures, thus allowing them to swim freely in a water film.
		After fertilization, many divisions form a multicellular embryo which is nourished by the gametophyte.
		Sperm leave antheridium only when moisture is present for them to swim in.
	www.cs.cuc.edu /~tfutcher/Bryophyta.html (706 words)

	Kingdom Plantae is Divided into Three Major Groups (Site not responding. Last check: 2007-10-22)
		Sperm from Antheridium swim in rainwater to Archegonium and fertilize the egg forming a
		Sporophyte generation consists of a stalk and capsule (together called the sporogonium) and is dependent on the gametophyte for its lifetime, it cannot live an independent existence.
		Sperm from Antheridium swim to Archegonium fertilizing an egg
	www.mrwatkins.com /preapbiologynotes/plantae.html (1427 words)

	[No title]
		The sexual apparatus is composed of an antheridium surrounded by a coiled ascogonium arising from the same or different hyphae.
		A loose network of hyphae surrounds the ascogenous hyphae and asci, and the ascospores are variously shaped.
		The antheridium is usually surrounded by a coiled ascogonium.
	www.life.uiuc.edu /ib/471/lectures/371_day21/371Lab21Plecto_03.doc (895 words)

	Bryophytes - introduction
		The gametophytes (which are the stage of the life cycle we recognise as the moss or liverwort) bear male sex organs termed antheridia (antheridium sing.
		Club-shaped antheridium (A) with mass of antherozoids (a) being discharged.
		At maturity, the antheridium bursts releasing the sperm cells or antherozoids.
	scitec.uwichill.edu.bb /bcs/bl14apl/bryo1.htm (989 words)

	Biological Foundations 112, Lecture 24
		ii) Cross wall separates the antheridium from the hypha as a side
		Fertilization tubes grow from the side of the antheridium into the
		iv) Nucleus from antheridium migrates down the fertilization tube to
	www.puc.edu /Faculty/Gilbert_Muth/botlec24.htm (287 words)

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