Lecture 11 from - 11:34:00 o Eukaryote o Multicellular o Photosynthetic o Cellwalls(cellulose Charophyceans ;ofteninhabitshallow,ephemeralwaters o

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 11 Notes – Plant Diversity 1 12/02/2011 11:34:00 Plants evolved from green algae Shared characteristics with algae o Eukaryote o Multicellular o Photosynthetic o Cell walls (cellulose) Charophyceans Closest relatives of plants; often inhabit shallow, ephemeral waters  o Semi-aquatic o Perfect ancestral species for evolution to land or water Key synapomorhphic traits (synapomorhphic relative to algae) o Rose-shaped complexes for cellulose synthesis (instead of linear) o Peroxisome enzymes o Formation of a phragmoplast (specialized microtubules) Terrestrial plant evolution Land invasion during Ordovician (480 MYA) Terrestrial adaptations o Cuticle – epidermal polymers that act as waterproofing Keeps water in o Sporopollenin – durable polymer that prevents spores/pollen from  drying out Unique plant characteristics
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Apical meristems  – meristem  - undifferentiated cells allowing growth  (stem 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/19/2011 for the course BSC2011C 2011 taught by Professor Fedorka/song during the Spring '11 term at University of Central Florida.

Page1 / 6

Lecture 11 from - 11:34:00 o Eukaryote o Multicellular o Photosynthetic o Cellwalls(cellulose Charophyceans ;ofteninhabitshallow,ephemeralwaters o

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online