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The phycoplast is a microtubule structure observed during cytokinesis in members of the Chlorophytina, the largest and most well known subphylum of chlorophyte green algae. Cytokinesis in green algae occurs via a diverse range of mechanisms, including cleavage furrows in some algae and cell plates in others.
Towards the right: Phragmoplast enlarges in a donut-shape towards the outside of the cell, leaving behind mature cell plate in the center. The cell plate will transform into the new cell wall once cytokinesis is complete. The phragmoplast is a plant cell specific structure that forms during late cytokinesis.
Silvetia is a genus of brown algae, ... "Electron tomographic analysis of cytokinesis in the brown alga Silvetia babingtonii (Fucales, Phaeophyceae)".
It is an important step in the emergence of land plants within the green algae. It is equivalent to the ZCC clade/grade, cladistically granting the Embryophyta. [5] The mitosis of Phragmoplastophyta takes place via a phragmoplast. Phragmoplast and cell plate formation in a plant cell during cytokinesis. Left side: Phragmoplast forms and cell ...
Chloroplasts probably evolved following an endosymbiotic event between an ancestral, photosynthetic cyanobacterium and an early eukaryotic phagotroph. [17] This event (termed primary endosymbiosis) is at the origin of the red and green algae (including the land plants or Embryophytes which emerged within them) and the glaucophytes, which together make up the oldest evolutionary lineages of ...
Trentepohliales is an exclusively terrestrial order of Ulvophyceaen green algae. [1] [2] The order is characterized by traits like net-like chloroplasts without pyrenoids, cell walls with plasmodesmata and cytokinesis by production of a phragmoplast.
The phragmoplast is a microtubule structure typical for higher plants, whereas some green algae use a phycoplast microtubule array during cytokinesis. [39]: 64–7, 328–9 Each daughter cell has a complete copy of the genome of its parent cell. The end of cytokinesis marks the end of the M-phase.
Chaetosphaeridium is a genus of green algae. Several classifications have been proposed. Its traditional classification is in the order Coleochaetales, related to the genus Coleochaete. [2] [3] AlgaeBase places it in the order Chaetosphaeridiales. [4]