Charophyceae
| Charophyceae | |
|---|---|
| |
| Chara fragilis | |
Scientific classification 
| |
| (unranked): | Archaeplastida |
| (unranked): | Viridiplantae |
| (unranked): | Charophyta |
| Class: | Charophyceae Rabenhorst[1] |
| Orders[1] | |
| |
Charophyceae is a
Charophyceae is basal in the Phragmoplastophyta clade which contains the embryophytes (land plants).[3][4][5] In 2018, the first nuclear genome sequence from a species belonging to the Charophyceae was published: that of Chara braunii.[6]
Description
The thallus is erect with regular nodes and internodes. At each node there is a whorl of branches. The whole plant is calcified and Equisetum-like. The internodes of the main axis consist of a single elongated cell, in Chara the internodes are corticated covering the main axis. In other genera these are absent. Where there is a single row of cortical cells the cortex is referred to as diplostichous, where there are two rows of cortical cells it is termed triplostichous. The intermodal cells elongate and do not divide, they become many times longer than broad.[7]
Evolution
Below is a consensus reconstruction of green algal relationships, mainly based on molecular data.[8][9][10]
| Streptophyta/ |
| ||||||||||||||||||||||||||||||
| charophyta |
References
- ^ a b c d Guiry, M.D.; Guiry, G.M. "Charophyceae". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2022-02-20.
- ^ Ecological Biochemistry: Environmental and Interspecies Interactions
- ISBN 0-521-30419-9
- Streptophytina
- ^ McCourt, R. M., Chapman, R. L., Buchheim, M. & Mishler, B. D. “Green Plants”. Accessed 13 December 2007
- PMID 30007417.
- ^ Smith, G.M. Cryptogamic Botany. Second Edition. 1955.p 121-130. McGraw-Hill Book Company.INC.
- PMID 32572216.
- PMID 29456145.
- PMID 28808007.