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apoplast
- (without cytoplasm)
- space between cell walls of plant cells
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symplast
- (cytoplasm)
- continuous spaces inside cells (shared cytoplasm)
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plasmodesmata
channels between cell walls that make cell cytoplasm continuous
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WUSCHEL (WUS)
transcription factor that promotes stem cell proliferation in the SAM
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CLV3
signaling molecule negatively regulates WUS
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Shared traits between green algae and
land plants
- Chloroplasts w/ chlorophyll a and b
- Thylakoids
- Cell wall, sperm, peroxisomes are similar in structure
- Chloroplast make starch for storage
- Suspected that land plants evolved from freshwater algae
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Seed
- embryo, nutritive tissue, protective coat
- must be fertilized!
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