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Topic: Ectosymbiosis

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	Kids.Net.Au - Encyclopedia > Symbiosis
		The term host is used for the larger of the two members of a symbiosis.
		Symbiosis may be divided into two distinct categories: ectosymbiosis and endosymbiosis.
		In ectosymbiosis, the symbiont lives on the body surface of the host, including the inner surface of the digestive tract or the ducts of exocrine glands.
	www.kids.net.au /encyclopedia-wiki/sy/Symbiosis (290 words)

	VLIZ - Integrated Marine Informations System - IMIS
		Ectosymbiosis between filamentous sulphur bacteria and a stalked barnacle (Scalpellomorpha, Neolepadinae) from the Lau Back Arc Basin, Tonga
		Southward, A.J.; Newman, W.A. Ectosymbiosis between filamentous sulphur bacteria and a stalked barnacle (Scalpellomorpha, Neolepadinae) from the Lau Back Arc Basin, Tonga.
		Southward, A.J.; Newman, W.A. Ectosymbiosis between filamentous sulphur bacteria and a stalked barnacle (Scalpellomorpha, Neolepadinae) from the Lau Back Arc Basin, Tonga, in: (1990).
	www.vliz.be /vmdcdata/imis2/ref.php?refid=66540 (279 words)

	Symbiosis - Wikipedia, the free encyclopedia
		Symbiosis as defined in this article does not restrict the term to only the mutually beneficial interactions.
		Symbiosis may be divided into two distinct categories: ectosymbiosis and endosymbiosis.
		In endosymbiosis, the symbiont lives in the intracellular space of the host.
	www.encyclopedia-online.info /Symbiosis (477 words)

	Symbiotic Relationshsips
		Actually some (not very bright) teacher restrict the term symbiosis to this mutualist symbiosis.
		But simbyosis comes from latin "living together" and is generally used for species that have a physiscal contact- like that page on weekepedia said: andosymbiosis or ectosymbiosis.
		Ectosymbiosis is defined as one organsim living on the surface of the other or in it's digestive tract.
	www.biology-online.org /biology-forum/about1172.html (679 words)

	CSA
		Taxonomically, the symbiotic associations range on the host side from a few genera within else aposymbiotic groups (Tubificidae in the Oligochaeta or Glossiphoniidae in the Hirudinea) to higher taxa with all their species living in symbiosis (Siboglinidae, Alvinellidae in the "Polychaeta").
		The ties between partners range from rather loose and occasional associations (some mud-dwelling tubificids) over regular ectosymbiosis (Alvinellids) to obligatory extra- or intracellular incorporation into the body (gutless oligochaetes, glossiphoniid leeches, siboglinid tube worms).
		Occurring from eulittoral beaches to deep-sea hot vents, from rotting wood at the sea bottom to freshwater ponds, the associations with bacteria seem to have adaptive significance in a broad ecological and nutritional range.
	md1.csa.com /partners/viewrecord.php?requester=gs&collection=ENV&recid=6146346&q=&uid=788074007&setcookie=yes (225 words)

	RMRS Other Publications: Temperature determines symbiont abundance in a multipartite bark beetle-fungus ectosymbiosis (Site not responding. Last check: 2007-11-02)
		Temperature determines symbiont abundance in a multipartite bark beetle-fungus ectosymbiosis
		Six, D.L.; Bentz, B.J. Temperature determines symbiont abundance in a multipartite bark beetle-fungus ectosymbiosis.
		In this study, we report evidence that temperature plays a key role in determining the relative abundance of two mutualistic fungi associated with an economically and ecologically important bark beetle, Dendroctonus ponderosae.
	www.fs.fed.us /rm/pubs_other/rmrs_2007_six_d001.html (239 words)

	Re: What type of enzyme is needed to break down common grass
		This partially digested material moves to another stomach where it is further broken down along with some of the microbes by the action of the animals' digestive enzymes (proteases, amylases, etc).
		The "ectosymbiosis" with bacteria is what allows cows to survive on a diet of grass.
		Humans do not maintain a suitable microbial community because of the harsh conditions of our one stomach and thus cannot digest grass well.
	www.madsci.org /posts/archives/sep99/936809536.Bc.r.html (524 words)

	Universita' degli Studi di Pisa: Mappa Virtuale. Rosati Giovanna - attivita' di ricerca (Site not responding. Last check: 2007-11-02)
		Rosati G. Ectosymbiosis in ciliated protozoa" in Symbiosis: mechanisms and model systems, pp.
		Rosati, G. & Verni F. Ruolo ecologico dei protisti in ambienti d'acqua dolce e marini e loro possibile uso come bioindicatori" in Metodologie biologiche per il rilevamento della qualità delle acque, pp.
		Extrusive bacterial ectosymbiosis of ciliates, "Extrusive bacterial ectosymbiosis of ciliates" in Molecular basis of Symbiosis, pp.
	virmap.unipi.it /cgi-bin/virmap/vmibo?docenti:8134512;listapubblicazioni;anchor (951 words)

	Science/AAAS \| This Week in Science: 04 February 2005; 307 (5710)
		See SCIENCE News This Week for summaries of news in this issue.
		Leaf-cutting ants live in obligate ectosymbiosis with clonal fungi that they rear for food.
		These symbionts are vertically transferred during colony foundation, but fungus gardens are, in principle, open for horizontal symbiont transmission later on.
	www.sciencemag.org /content/vol307/issue5710/twis.dtl (1575 words)

	Basic Microbial Ecology Concepts Study Guide (Site not responding. Last check: 2007-11-02)
		Niche - abstract concept describing all environmental conditions needed for an organism to maintain a viable population, specifying amounts of each resource required to do so (not a physical place)
		Symbiotic relationships are those in which two or more dissimilar organisms live in close association; may be endosymbiosis or ectosymbiosis
		rumen ectosymbiosis - cattle, deer, camels, sheep, goats, giraffes have a four-compartment "stomach" (rumen) in which cellulolytic bacteria, fungi and protozoa (~10
	www.cas.muohio.edu /~stevenjr/mbi202/ecologyconcepts202.html (710 words)

	Symbiology
		The association host/symbiotes creates a new biological unit, the symbiocosm, itself submitted to natural selection.
		The symbiotes can be outside (ectosymbiosis) or inside the host in the intestine or in some invaginations of the tegument (endosymbioses), or inside the cells (endocytobioses).
		In integrated symbioses the symbiote (a bacterium) is perfectly controlled by the host (location and number), and look likes a new cell organelle, only transmitted to the progeny by the mother.
	shum.cc.huji.ac.il /~por/icz_xviii/symbiology.html (533 words)

	symbiosis - alphaDictionary * Free English On-line Dictionary
		Millions of symbiotic microbes live all over our skin, cleaning up dirt, debris, and oils.
		Their relationship is called ectosymbiosis because they live on the outside of us.
		Termites are known to have endosymbiotic bacteria in their intestines that help digest the wood eaten by termites.
	www.alphadictionary.com /goodword/date/2005/07/15 (367 words)

	ECTOSYMBIOSIS Articles
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	www.amazines.com /Ectosymbiosis_related.html (252 words)

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