Green alga - Revision history

Gorobay: R to plural

2022-05-12T01:01:48Z

R to plural

← Previous revision		Revision as of 01:01, 12 May 2022
Line 1:		Line 1:
	#REDIRECT [[Green algae]]		#REDIRECT [[Green algae]]

			{{Rcat shell\|
			{{R to plural}}
			}}

Velella: Redirect - all content preserved at Green algae

2006-05-21T19:27:27Z

Redirect - all content preserved at Green algae

← Previous revision		Revision as of 19:27, 21 May 2006
Line 1:		Line 1:
		⚫	#REDIRECT [[Green algae]]
	{{Taxobox
	\| color = lightgreen

⚫	~~\| name =~~ Green algae
	\| regnum = [[Protista]]
	\| subdivision_ranks = Divisions
	\| subdivision =
	*[[Chlorophyta]] <BR>
	*[[Charophyta]] <BR>
	}}
	One '''Green Alga''' is a member of the '''[[Green algae]]''', which are the large group of [[algae]] from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.

	Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.

	[[Image:Intertidal greenalgae.jpg\|400px\|thumb\|right\|A growth of the green seaweed, ''[[Enteromorpha]]'' on rock substratum at the ocean shore. Some green seaweeds, such as ''Enteromorpha'' and ''[[Sea lettuce\|Ulva]]'', are quick to utilize inorganic [[nutrient]]s from land runoff, and thus can be indicators of nutrient pollution.]]
	All green algae have [[mitochondrion\|mitochondria]] with flat cristae. When present [[flagellum\|flagella]] are typically anchored by a cross-shaped system of [[microtubule]]s, but these are absent among the higher plants and charophytes. They usually have cell walls containing [[cellulose]], and undergo open [[mitosis]] without centrioles. Sexual reproduction varies from fusion of identical cells (isogamy) to fertilization of a large non-motile cell by a smaller motile one (oogamy). However, these traits show some variation, most notably among the basal green algae, called [[prasinophyte]]s. The remaining forms are usually classified as follows:

	* Chlorophyta
	** [[Chlorophyceae]]
	** [[Ulvophyceae]]
	** [[Trebouxiophyceae]]
	* [[Chlorokybales]]
	* [[Klebsormidiales]]
	* [[Zygnematales]]
	* [[Desmid]]iales
	* [[Coleochaetales]]
	* [[Charales]] (stoneworts)

	The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and Desmidiales. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.

	A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungi]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.

	The first land plants probably evolved from green algae.

	'''See also: [[Red algae]] [[Brown algae]]'''

	== References ==

	Lewis, L.A, McCourt, R.M. (2004) Green algae and the origin of land plants. ''AMERICAN JOURNAL OF BOTANY 91'' (10): 1535-1556 OCT.

	[[Category:Algae]]
	[[Category:Green algae\|*]]
	[[Category:Non-vascular plants]]

	[[bg:Зелени водорасли]]
	[[de:Grünalgen]]
	[[et:Rohevetikad]]
	[[es:Chlorophyta]]
	[[fr:Algue verte]]
	[[ja:緑藻類]]
	[[lb:Gréngalgen]]
	[[mk:Зелени алги]]
	[[pl:Zielenice]]
	[[uk:Водорості (підцарство)]]

130.60.201.157 at 16:43, 30 April 2006

2006-04-30T16:43:16Z

← Previous revision		Revision as of 16:43, 30 April 2006
Line 9:		Line 9:
	*[[Charophyta]] <BR>		*[[Charophyta]] <BR>
	}}		}}
	One '''Green Alga''' is a member of the '''[[Green ~~Algae~~]]''', which are the large group of [[algae]] from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.		One '''Green Alga''' is a member of the '''[[Green algae]]''', which are the large group of [[algae]] from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.

	Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.		Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.

Tom David at 14:16, 30 April 2006

2006-04-30T14:16:47Z

← Previous revision		Revision as of 14:16, 30 April 2006
Line 9:		Line 9:
	*[[Charophyta]] <BR>		*[[Charophyta]] <BR>
	}}		}}
	~~The~~ '''~~green~~ ~~algae~~''' are the large group of [[~~alga~~]]e from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.		One '''Green Alga''' is a member of the '''[[Green Algae]]''', which are the large group of [[algae]] from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.

	Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.		Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.
Line 29:		Line 29:
	The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and Desmidiales. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.		The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and Desmidiales. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.

	A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[~~fungus~~]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.		A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungi]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.

	The first land plants probably evolved from green algae.		The first land plants probably evolved from green algae.

	'''See also: [[Red ~~alga~~]]e [[Brown ~~alga~~]]e'''		'''See also: [[Red algae]] [[Brown algae]]'''

	== References ==		== References ==

TheAlphaWolf: that page says it's a division

2006-04-30T03:09:57Z

that page says it's a division

← Previous revision		Revision as of 03:09, 30 April 2006
Line 8:		Line 8:
	*[[Chlorophyta]] <BR>		*[[Chlorophyta]] <BR>
	*[[Charophyta]] <BR>		*[[Charophyta]] <BR>
	**[[Streptophytina]] (Subdivision)<BR>
	}}		}}
	The '''green algae''' are the large group of [[alga]]e from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.		The '''green algae''' are the large group of [[alga]]e from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.

Friendly Neighbour: Please, do not delete whole pages without some discussion

2006-04-29T20:01:43Z

Please, do not delete whole pages without some discussion

← Previous revision		Revision as of 20:01, 29 April 2006
Line 1:		Line 1:
			{{Taxobox
	Green alga is the singular of [[Green algae]]. For example the Green alga ''Chlorella minutissima'' and the Green alga ''Chlamydomonas nivalis'' belong to the group of Green algae. Cheers! Thomi
			\| color = lightgreen

			\| name = Green algae
			\| regnum = [[Protista]]
			\| subdivision_ranks = Divisions
			\| subdivision =
			*[[Chlorophyta]] <BR>
			*[[Charophyta]] <BR>
			**[[Streptophytina]] (Subdivision)<BR>
			}}
			The '''green algae''' are the large group of [[alga]]e from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.

			Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.

			[[Image:Intertidal greenalgae.jpg\|400px\|thumb\|right\|A growth of the green seaweed, ''[[Enteromorpha]]'' on rock substratum at the ocean shore. Some green seaweeds, such as ''Enteromorpha'' and ''[[Sea lettuce\|Ulva]]'', are quick to utilize inorganic [[nutrient]]s from land runoff, and thus can be indicators of nutrient pollution.]]
			All green algae have [[mitochondrion\|mitochondria]] with flat cristae. When present [[flagellum\|flagella]] are typically anchored by a cross-shaped system of [[microtubule]]s, but these are absent among the higher plants and charophytes. They usually have cell walls containing [[cellulose]], and undergo open [[mitosis]] without centrioles. Sexual reproduction varies from fusion of identical cells (isogamy) to fertilization of a large non-motile cell by a smaller motile one (oogamy). However, these traits show some variation, most notably among the basal green algae, called [[prasinophyte]]s. The remaining forms are usually classified as follows:

			* Chlorophyta
			** [[Chlorophyceae]]
			** [[Ulvophyceae]]
			** [[Trebouxiophyceae]]
			* [[Chlorokybales]]
			* [[Klebsormidiales]]
			* [[Zygnematales]]
			* [[Desmid]]iales
			* [[Coleochaetales]]
			* [[Charales]] (stoneworts)

			The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and Desmidiales. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.

			A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungus]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.

			The first land plants probably evolved from green algae.

			'''See also: [[Red alga]]e [[Brown alga]]e'''

			== References ==

			Lewis, L.A, McCourt, R.M. (2004) Green algae and the origin of land plants. ''AMERICAN JOURNAL OF BOTANY 91'' (10): 1535-1556 OCT.

			[[Category:Algae]]
			[[Category:Green algae\|*]]
			[[Category:Non-vascular plants]]

			[[bg:Зелени водорасли]]
			[[de:Grünalgen]]
			[[et:Rohevetikad]]
			[[es:Chlorophyta]]
			[[fr:Algue verte]]
			[[ja:緑藻類]]
			[[lb:Gréngalgen]]
			[[mk:Зелени алги]]
			[[pl:Zielenice]]
			[[uk:Водорості (підцарство)]]

130.60.201.135 at 19:28, 29 April 2006

2006-04-29T19:28:53Z

← Previous revision		Revision as of 19:28, 29 April 2006
Line 1:		Line 1:
			Green alga is the singular of [[Green algae]]. For example the Green alga ''Chlorella minutissima'' and the Green alga ''Chlamydomonas nivalis'' belong to the group of Green algae. Cheers! Thomi
	{{Taxobox
	\| color = lightgreen

	\| name = Green algae
	\| regnum = [[Protista]]
	\| subdivision_ranks = Divisions
	\| subdivision =
	*[[Chlorophyta]] <BR>
	*[[Charophyta]] <BR>
	**[[Streptophytina]] (Subdivision)<BR>
	}}
	The '''green algae''' are the large group of [[alga]]e from which the [[embryophyte]]s (higher plants) emerged. As such they form a [[paraphyletic]] group, variously included among the [[Plantae]] or with the [[Protist]]a. The green algae include unicellular and colonial flagellates, usually but not always with two flagella per cell, as well as various colonial, coccoid, and filamentous forms. In the [[Charales]], the closest relatives of higher plants, full differentiation of tissues occurs.

	Almost all forms have [[chloroplast]]s. These contain [[chlorophyll]]s ''a'' and ''b'', giving them a bright green colour (as well as the accessory pigments [[beta carotene]] and [[xanthophyll]]s), and have stacked [[thylakoid]]s. They are bound by a double membrane, so presumably were acquired by direct [[endosymbiotic theory\|endosymbiosis]] of [[cyanobacteria]]. A number of cyanobacteria show similar pigmentation, but this appears to have arisen more than once, and the chloroplasts of green algae are no longer considered closely related to such forms. Instead, the green algae probably share a common origin with the red algae; the two are grouped as the [[Archaeplastida]] or Plantae ''sensu lato''.

	[[Image:Intertidal greenalgae.jpg\|400px\|thumb\|right\|A growth of the green seaweed, ''[[Enteromorpha]]'' on rock substratum at the ocean shore. Some green seaweeds, such as ''Enteromorpha'' and ''[[Sea lettuce\|Ulva]]'', are quick to utilize inorganic [[nutrient]]s from land runoff, and thus can be indicators of nutrient pollution.]]
	All green algae have [[mitochondrion\|mitochondria]] with flat cristae. When present [[flagellum\|flagella]] are typically anchored by a cross-shaped system of [[microtubule]]s, but these are absent among the higher plants and charophytes. They usually have cell walls containing [[cellulose]], and undergo open [[mitosis]] without centrioles. Sexual reproduction varies from fusion of identical cells (isogamy) to fertilization of a large non-motile cell by a smaller motile one (oogamy). However, these traits show some variation, most notably among the basal green algae, called [[prasinophyte]]s. The remaining forms are usually classified as follows:

	* Chlorophyta
	** [[Chlorophyceae]]
	** [[Ulvophyceae]]
	** [[Trebouxiophyceae]]
	* [[Chlorokybales]]
	* [[Klebsormidiales]]
	* [[Zygnematales]]
	* [[Desmid]]iales
	* [[Coleochaetales]]
	* [[Charales]] (stoneworts)

	The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and Desmidiales. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.

	A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungus]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.

	The first land plants probably evolved from green algae.

	'''See also: [[Red alga]]e [[Brown alga]]e'''

	== References ==

	Lewis, L.A, McCourt, R.M. (2004) Green algae and the origin of land plants. ''AMERICAN JOURNAL OF BOTANY 91'' (10): 1535-1556 OCT.

	[[Category:Algae]]
	[[Category:Green algae\|*]]
	[[Category:Non-vascular plants]]

	[[bg:Зелени водорасли]]
	[[de:Grünalgen]]
	[[et:Rohevetikad]]
	[[es:Chlorophyta]]
	[[fr:Algue verte]]
	[[ja:緑藻類]]
	[[lb:Gréngalgen]]
	[[mk:Зелени алги]]
	[[pl:Zielenice]]
	[[uk:Водорості (підцарство)]]

Paul P: the first land plants probably evolved from green algae

2006-04-07T14:29:13Z

the first land plants probably evolved from green algae

← Previous revision		Revision as of 14:29, 7 April 2006
Line 31:		Line 31:

	A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungus]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.		A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungus]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.

			The first land plants probably evolved from green algae.

	'''See also: [[Red alga]]e [[Brown alga]]e'''		'''See also: [[Red alga]]e [[Brown alga]]e'''

Keith Edkins: Desmidiales spelling (twice)

2006-03-28T10:26:01Z

Desmidiales spelling (twice)

← Previous revision		Revision as of 10:26, 28 March 2006
Line 24:		Line 24:
	* [[Klebsormidiales]]		* [[Klebsormidiales]]
	* [[Zygnematales]]		* [[Zygnematales]]
	* [[Desmid]]~~ales~~		* [[Desmid]]iales
	* [[Coleochaetales]]		* [[Coleochaetales]]
	* [[Charales]] (stoneworts)		* [[Charales]] (stoneworts)

	The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and ~~Desmidales~~. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.		The orders outside the Chlorophyta are often grouped as the division Charophyta, which is [[paraphyletic]] to higher plants, together comprising the Streptophyta. Sometimes the Charophyta is restricted to the Charales, and a division Gamophyta is introduced for the Zygnematales and Desmidiales. In older systems the Chlorophyta may be taken to include all the green algae, but taken as above they appear to form a monophyletic group.

	A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungus]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.		A few other organisms rely on green algae to conduct photosynthesis for them. The chloroplasts in [[euglenid]]s and [[chlorarachniophyte]]s were presumably acquired from ingested green algae, and in the latter retain a vestigial nucleus (nucleomorph). Some species of green algae, particularly of genera ''[[Trebouxia]]'' or ''[[Pseudotrebouxia]]'' (Trebouxiophyceae), can be found in symbiotic associations with [[fungus]] to form [[lichen]]s. In general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus.

68.38.126.159 at 00:43, 26 March 2006

2006-03-26T00:43:51Z

← Previous revision		Revision as of 00:43, 26 March 2006
Line 3:		Line 3:

	\| name = Green algae		\| name = Green algae
	\| regnum = [[~~Plantae~~]]		\| regnum = [[Protista]]
	\| subdivision_ranks = Divisions		\| subdivision_ranks = Divisions
	\| subdivision =		\| subdivision =