01:119:115 Lecture Notes - Lecture 29: Sporopollenin, Streptophyta, Viridiplantae
15 Feb 2018
School
Department
Course
Professor
Document Summary
Chapter 29 - plant diversity i: how plants colonized land. Chapter 29 plant diversity i: how plants colonized land. Land plants share four key features only with the charophyceans. A second feature that unites charophyceans and land plants is the presence of peroxisome enzymes to help minimize the loss of organic products as a result of photorespiration: peroxisomes of other algae lack these enzymes. In those land plants that have flagellated sperm cells, the structure of the sperm resembles the sperm of charophyceans. Streptophyta and expanded to include the charophyceans and a few related groups: others suggest the kingdom viridiplantae, which includes chlorophytes as well as plants. Five key traits appear in nearly all land plants but are absent in the charophyceans: we infer that these traits evolved as derived traits of land plants, the five traits are: Multicellular embryo that is dependent on the parent plant. Land plants have diversified since their origin from algal ancestors.
