BIOL 172 Chapter 29: BIOL 172 Chapter 29 (29) Notes
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Chapter 29 (29) nonvascular and seedless vascular plants. Many key traits of land plants also appear in some algae: Charyophytes are the only present-day algae that share the following distinctive traits with land plants: Formation of a phragmoplast: all land plants, even those that are now aquatic, to distinguish separately from algae, which are photosynthetic protists. These suggest that they are the closest living relatives of plants. have distinctive cellular rings of proteins in the plasma membrane that synthesize the cellulose microfibrils of the cell wall. In contrast, noncharophyte algae have linear sets of proteins that synthesize cellulose. In species of land plants that have flagellated sperm, the structure of the sperm closely resembles that of charophyte sperm. Particular details of cell division occur only in land plants and certain charophytes, including the genera chara and coleochaete. Ex) a group of microtubules known as the phragmoplast forms between the daughter nuclei of a dividing cell.
