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{{Short description|Genus of algae}}
{{Short description|Genus of algae}}
{{Automatic taxobox
{{Taxobox
| image =
| image =
| image_caption =
| image_caption =
| taxon = Mesostigma
| regnum = [[Viridiplantae]]
| authority = Lauterborn<ref name=AB_t113394/>
| divisio = '''Mesostigmatophyta'''
| parent_authority = Marin & Melkonian<ref name=AB_t113393/>
| classis = '''[[Mesostigmatophyceae]]'''
| grandparent_authority = Marin & Melkonian<ref name=AB_t113392/>
| ordo = '''Mesostigmales'''
⚫
| subdivision_ranks = Species
| familia = '''Mesostigmataceae'''
| subdivision =
| genus = '''''Mesostigma'''''
⚫
* ''M. viride'' <small>Lauterborn</small>
| genus_authority = Lauterborn 1894 emend. McCourt 2005
⚫
| subdivision_ranks = Species
| subdivision = * ''M. grande'' <small>Korshikov 1938</small>
⚫
* ''M. viride'' <small>Lauterborn 1894</small>
}}
}}


'''''Mesostigma''''' is a [[genus]] of unicellular biflagellate freshwater [[green algae]], with a single species '''''Mesostigma viride''''', covered by an outer layer of basket‐like scales instead of a [[cell wall]].<ref>{{Cite journal |last1=Liang |first1=Zhe |last2=Geng |first2=Yuke |last3=Ji |first3=Changmian |last4=Du |first4=Hai |last5=Wong |first5=Chui Eng |last6=Zhang |first6=Qian |last7=Zhang |first7=Ye |last8=Zhang |first8=Pingxian |last9=Riaz |first9=Adeel |last10=Chachar |first10=Sadaruddin |last11=Ding |first11=Yike |last12=Wen |first12=Jing |last13=Wu |first13=Yunwen |last14=Wang |first14=Mingcheng |last15=Zheng |first15=Hongkun |date=2020 |title=Mesostigma viride Genome and Transcriptome Provide Insights into the Origin and Evolution of Streptophyta |journal=Advanced Science |volume=7 |issue=1 |pages=1901850 |doi=10.1002/advs.201901850 |pmc=6947507 |pmid=31921561}}</ref><ref name=AB_t113394>{{AlgaeBase taxon|name=''Mesostigma''|id=113394}}</ref> It is the only known genus in the class [[Mesostigmatophyceae]]<ref name="AB_t113391">{{AlgaeBase taxon|name=Mesostigmatophyceae|id=113391}}</ref> (and thus, the only genus in the family Mesostigmataceae<ref name="AB_t113393">{{AlgaeBase taxon|name=Mesostigmataceae|id=113393}}</ref> and the order Mesostigmatales<ref name="AB_t113392">{{AlgaeBase taxon|name=Mesostigmatales|id=113392}}</ref>).
'''''Mesostigma''''' is a [[genus]] of freshwater [[green algae]], with a single species '''''Mesostigma viride'''''. It is now considered to be one of the earliest diverging members of green plants/algae ([[Viridiplantae]]).


Earlier studies were unable to resolve the position of the species, and it was often placed as a sister to all other green algae, as one of the basal members of the Streptophyta, or as close to ''[[Chaetosphaeridium]]''.<ref>{{cite journal | doi = 10.1016/S1434-4610(99)70041-6 | vauthors = Marin B, Melkonian M | author2-link = Michael Melkonian | year = 1999 | title = Mesostigmatophyceae, a new class of streptophyte green algae revealed by SSU rRNA sequence comparisons | journal = Protist | volume = 150 | pages = 399–417 | pmid = 10714774 | issue = 4 }}</ref><ref>{{cite journal | title = The plant tree of life: an overview and some points of view | author = Jeffrey D. Palmer | author2 = Douglas E. Soltis | author3 = Mark W. Chase | name-list-style = amp | journal = American Journal of Botany | year = 2004 | volume = 91 | pages = 1437–45 | doi = 10.3732/ajb.91.10.1437 | issue=10 | pmid=21652302| doi-access = free }}</ref><ref>{{cite journal | title = EST analysis of the scaly green flagellate Mesostigma viride (Streptophyta): Implications for the evolution of green plants (Viridiplantae) | author = Andreas Simon | author2 = Gernot Glöckner | author3 = Marius Felder | author4 = Michael Melkonian | author4-link = Michael Melkonian | author5 = Burkhard Becker | name-list-style = amp| journal = BMC Plant Biology | year = 2006 | volume = 6 | pages = 2 | doi = 10.1186/1471-2229-6-2 | pmid = 16476162 | pmc = 1413533}}</ref> More recent studies agree that ''Mesostigma'' and ''[[Chlorokybus]]'' form a [[clade]], being the earliest diverging [[green plants]].<ref name=lemieux>{{cite journal |vauthors=Lemieux C, Otis C, Turmel M |title=A clade uniting the green algae Mesostigma viride and Chlorokybus atmophyticus represents the deepest branch of the Streptophyta in chloroplast genome-based phylogenies |journal=BMC Biol. |volume=5|pages=2 |year=2007 |pmid=17222354 |pmc=1781420 |doi=10.1186/1741-7007-5-2 }}</ref><ref name="BeckerMarin2009">{{Cite journal |last1=Becker |first1=B. |last2=Marin |first2=B. |year=2009 |title=Streptophyte algae and the origin of embryophytes |journal=Annals of Botany |volume=103 |issue=7 |pages=999–1004 |doi=10.1093/aob/mcp044 |name-list-style=amp |pmid=19273476 |pmc=2707909 }}</ref><ref>{{Cite journal|last1=Sánchez-Baracaldo|first1=Patricia|last2=Raven|first2=John A.|last3=Pisani|first3=Davide|last4=Knoll|first4=Andrew H.|date=2017-09-12|title=Early photosynthetic eukaryotes inhabited low-salinity habitats|journal=Proceedings of the National Academy of Sciences|volume=114|issue=37|pages=E7737–E7745|doi=10.1073/pnas.1620089114|pmid=28808007|pmc=5603991|doi-access=free}}</ref><ref>{{Cite journal|last1=Gitzendanner|first1=Matthew A.|last2=Soltis|first2=Pamela S.|last3=Wong|first3=Gane K.-S.|last4=Ruhfel|first4=Brad R.|last5=Soltis|first5=Douglas E.|date=2018|title=Plastid phylogenomic analysis of green plants: A billion years of evolutionary history|journal=American Journal of Botany|language=en|volume=105|issue=3|pages=291–301|doi=10.1002/ajb2.1048|pmid=29603143|issn=0002-9122|doi-access=free}}</ref>
Earlier studies were unable to resolve the position of the species, and it was often placed as a sister to all other green algae, as one of the basal members of the [[Streptophyta]], close to ''[[Chaetosphaeridium]]''.<ref>{{cite journal | doi = 10.1016/S1434-4610(99)70041-6 | vauthors = Marin B, Melkonian M | author2-link = Michael Melkonian | year = 1999 | title = Mesostigmatophyceae, a new class of streptophyte green algae revealed by SSU rRNA sequence comparisons | journal = Protist | volume = 150 | pages = 399–417 | pmid = 10714774 | issue = 4 }}</ref><ref>{{cite journal | title = The plant tree of life: an overview and some points of view | author = Jeffrey D. Palmer | author2 = Douglas E. Soltis | author3 = Mark W. Chase | name-list-style = amp | journal = American Journal of Botany | year = 2004 | volume = 91 | pages = 1437–45 | doi = 10.3732/ajb.91.10.1437 | issue=10 | pmid=21652302| doi-access = free }}</ref><ref>{{cite journal | title = EST analysis of the scaly green flagellate Mesostigma viride (Streptophyta): Implications for the evolution of green plants (Viridiplantae) | author = Andreas Simon | author2 = Gernot Glöckner | author3 = Marius Felder | author4 = Michael Melkonian | author4-link = Michael Melkonian | author5 = Burkhard Becker | name-list-style = amp| journal = BMC Plant Biology | year = 2006 | volume = 6 | pages = 2 | doi = 10.1186/1471-2229-6-2 | pmid = 16476162 | pmc = 1413533 | doi-access = free }}</ref> More recent studies agree that ''Mesostigma'' and ''[[Chlorokybus]]'' form a [[clade]], being the earliest diverging of the [[green plants]], specifically within [[Charophyta|Charophytes]].<ref name=lemieux>{{cite journal |vauthors=Lemieux C, Otis C, Turmel M |title=A clade uniting the green algae Mesostigma viride and Chlorokybus atmophyticus represents the deepest branch of the Streptophyta in chloroplast genome-based phylogenies |journal=BMC Biol. |volume=5|pages=2 |year=2007 |pmid=17222354 |pmc=1781420 |doi=10.1186/1741-7007-5-2 |doi-access=free }}</ref><ref name="BeckerMarin2009">{{Cite journal |last1=Becker |first1=B. |last2=Marin |first2=B. |year=2009 |title=Streptophyte algae and the origin of embryophytes |journal=Annals of Botany |volume=103 |issue=7 |pages=999–1004 |doi=10.1093/aob/mcp044 |name-list-style=amp |pmid=19273476 |pmc=2707909 }}</ref><ref>{{Cite journal|last1=Sánchez-Baracaldo|first1=Patricia|last2=Raven|first2=John A.|last3=Pisani|first3=Davide|last4=Knoll|first4=Andrew H.|date=2017-09-12|title=Early photosynthetic eukaryotes inhabited low-salinity habitats|journal=Proceedings of the National Academy of Sciences|volume=114|issue=37|pages=E7737–E7745|doi=10.1073/pnas.1620089114|pmid=28808007|pmc=5603991|bibcode=2017PNAS..114E7737S |doi-access=free}}</ref><ref>{{Cite journal|last1=Gitzendanner|first1=Matthew A.|last2=Soltis|first2=Pamela S.|last3=Wong|first3=Gane K.-S.|last4=Ruhfel|first4=Brad R.|last5=Soltis|first5=Douglas E.|date=2018|title=Plastid phylogenomic analysis of green plants: A billion years of evolutionary history|journal=American Journal of Botany|language=en|volume=105|issue=3|pages=291–301|doi=10.1002/ajb2.1048|pmid=29603143|issn=0002-9122|doi-access=free}}</ref>

{{As of|2022|February}}, [[AlgaeBase]] classified it as the only genus in the family '''Mesostigmataceae''',<ref name=AB_t113393>{{AlgaeBase taxon|name=Mesostigmataceae|id=113393}}</ref> the only family in the order '''Mesostigmatales''',<ref name=AB_t113392>{{AlgaeBase taxon|name=Mesostigmatales|id=113392}}</ref> the only order in the class [[Mesostigmatophyceae]].<ref name=AB_t113391>{{AlgaeBase taxon|name=Mesostigmatophyceae|id=113391}}</ref>


== References ==
== References ==
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{{Taxonbar|from1=Q141467|from2=Q14905301}}
{{Taxonbar|from1=Q141467|from2=Q14905301}}


[[Category:Green algae genera]]
[[Category:Charophyta genera]]
[[Category:Monotypic algae genera]]
[[Category:Monotypic algae genera]]




{{Algae-stub}}
{{green algae-stub}}

Latest revision as of 04:39, 28 September 2024

Mesostigma
Scientific classification Edit this classification
Clade: Viridiplantae
(unranked): Charophyta
Class: Mesostigmatophyceae
Order: Mesostigmatales
Marin & Melkonian[3]
Family: Mesostigmataceae
Marin & Melkonian[2]
Genus: Mesostigma
Lauterborn[1]
Species
  • M. viride Lauterborn

Mesostigma is a genus of unicellular biflagellate freshwater green algae, with a single species Mesostigma viride, covered by an outer layer of basket‐like scales instead of a cell wall.[4][1] It is the only known genus in the class Mesostigmatophyceae[5] (and thus, the only genus in the family Mesostigmataceae[2] and the order Mesostigmatales[3]).

Earlier studies were unable to resolve the position of the species, and it was often placed as a sister to all other green algae, as one of the basal members of the Streptophyta, close to Chaetosphaeridium.[6][7][8] More recent studies agree that Mesostigma and Chlorokybus form a clade, being the earliest diverging of the green plants, specifically within Charophytes.[9][10][11][12]

References

[edit]
  1. ^ a b Guiry, M.D.; Guiry, G.M. "Mesostigma". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.
  2. ^ a b Guiry, M.D.; Guiry, G.M. "Mesostigmataceae". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.
  3. ^ a b Guiry, M.D.; Guiry, G.M. "Mesostigmatales". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.
  4. ^ Liang, Zhe; Geng, Yuke; Ji, Changmian; Du, Hai; Wong, Chui Eng; Zhang, Qian; Zhang, Ye; Zhang, Pingxian; Riaz, Adeel; Chachar, Sadaruddin; Ding, Yike; Wen, Jing; Wu, Yunwen; Wang, Mingcheng; Zheng, Hongkun (2020). "Mesostigma viride Genome and Transcriptome Provide Insights into the Origin and Evolution of Streptophyta". Advanced Science. 7 (1): 1901850. doi:10.1002/advs.201901850. PMC 6947507. PMID 31921561.
  5. ^ Guiry, M.D.; Guiry, G.M. "Mesostigmatophyceae". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.
  6. ^ Marin B, Melkonian M (1999). "Mesostigmatophyceae, a new class of streptophyte green algae revealed by SSU rRNA sequence comparisons". Protist. 150 (4): 399–417. doi:10.1016/S1434-4610(99)70041-6. PMID 10714774.
  7. ^ Jeffrey D. Palmer; Douglas E. Soltis & Mark W. Chase (2004). "The plant tree of life: an overview and some points of view". American Journal of Botany. 91 (10): 1437–45. doi:10.3732/ajb.91.10.1437. PMID 21652302.
  8. ^ Andreas Simon; Gernot Glöckner; Marius Felder; Michael Melkonian & Burkhard Becker (2006). "EST analysis of the scaly green flagellate Mesostigma viride (Streptophyta): Implications for the evolution of green plants (Viridiplantae)". BMC Plant Biology. 6: 2. doi:10.1186/1471-2229-6-2. PMC 1413533. PMID 16476162.
  9. ^ Lemieux C, Otis C, Turmel M (2007). "A clade uniting the green algae Mesostigma viride and Chlorokybus atmophyticus represents the deepest branch of the Streptophyta in chloroplast genome-based phylogenies". BMC Biol. 5: 2. doi:10.1186/1741-7007-5-2. PMC 1781420. PMID 17222354.
  10. ^ Becker, B. & Marin, B. (2009). "Streptophyte algae and the origin of embryophytes". Annals of Botany. 103 (7): 999–1004. doi:10.1093/aob/mcp044. PMC 2707909. PMID 19273476.
  11. ^ Sánchez-Baracaldo, Patricia; Raven, John A.; Pisani, Davide; Knoll, Andrew H. (2017-09-12). "Early photosynthetic eukaryotes inhabited low-salinity habitats". Proceedings of the National Academy of Sciences. 114 (37): E7737 – E7745. Bibcode:2017PNAS..114E7737S. doi:10.1073/pnas.1620089114. PMC 5603991. PMID 28808007.
  12. ^ Gitzendanner, Matthew A.; Soltis, Pamela S.; Wong, Gane K.-S.; Ruhfel, Brad R.; Soltis, Douglas E. (2018). "Plastid phylogenomic analysis of green plants: A billion years of evolutionary history". American Journal of Botany. 105 (3): 291–301. doi:10.1002/ajb2.1048. ISSN 0002-9122. PMID 29603143.
[edit]
  • [1] from Algaebase


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