Mesostigma Explained

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.[1] It is the only known genus in the class Mesostigmatophyceae (and thus, the only genus in the family Mesostigmataceae and the order Mesostigmatales).

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.[2] [3] [4] More recent studies agree that Mesostigma and Chlorokybus form a clade, being the earliest diverging of the green plants, specifically within Charophytes.[5] [6] [7] [8]

External links

Notes and References

  1. 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 . 10.1002/advs.201901850 . 6947507 . 31921561.
  2. 10.1016/S1434-4610(99)70041-6 . Marin B, Melkonian M . Michael Melkonian . 1999 . Mesostigmatophyceae, a new class of streptophyte green algae revealed by SSU rRNA sequence comparisons . Protist . 150 . 399–417 . 10714774 . 4 .
  3. The plant tree of life: an overview and some points of view . Jeffrey D. Palmer . Douglas E. Soltis . Mark W. Chase . amp . American Journal of Botany . 2004 . 91 . 1437–45 . 10.3732/ajb.91.10.1437 . 10 . 21652302. free .
  4. EST analysis of the scaly green flagellate Mesostigma viride (Streptophyta): Implications for the evolution of green plants (Viridiplantae) . Andreas Simon . Gernot Glöckner . Marius Felder . Michael Melkonian . Michael Melkonian . Burkhard Becker . amp. BMC Plant Biology . 2006 . 6 . 2 . 10.1186/1471-2229-6-2 . 16476162 . 1413533 . free .
  5. Lemieux C, Otis C, Turmel M . 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 . 2007 . 17222354 . 1781420 . 10.1186/1741-7007-5-2 . free .
  6. Becker . B. . Marin . B. . 2009 . Streptophyte algae and the origin of embryophytes . Annals of Botany . 103 . 7 . 999–1004 . 10.1093/aob/mcp044 . amp . 19273476 . 2707909 .
  7. 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. 10.1073/pnas.1620089114. 28808007. 5603991. 2017PNAS..114E7737S . free.
  8. 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. en. 105. 3. 291–301. 10.1002/ajb2.1048. 29603143. 0002-9122. free.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mesostigma".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2025, A B Cryer, All Rights Reserved. Cookie policy.