Protein targeting into secondary plastids of chlorarachniophytes
Lab #8 Angiosperms. Plastids Amyloplasts – from garden bean chromoplasts – from red pepper.
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Transcript of Lab #8 Angiosperms. Plastids Amyloplasts – from garden bean chromoplasts – from red pepper.
![Page 1: Lab #8 Angiosperms. Plastids Amyloplasts – from garden bean chromoplasts – from red pepper.](https://reader036.fdocuments.in/reader036/viewer/2022062801/56649e7e5503460f94b81687/html5/thumbnails/1.jpg)
Lab #8 Angiosperms
![Page 2: Lab #8 Angiosperms. Plastids Amyloplasts – from garden bean chromoplasts – from red pepper.](https://reader036.fdocuments.in/reader036/viewer/2022062801/56649e7e5503460f94b81687/html5/thumbnails/2.jpg)
Plastids
Amyloplasts – from garden bean
chromoplasts – from red pepper
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Epidermal structures
Guards cells + Stoma
Trichome and leaf cross section
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Mesophyll – Palisade and Spongy
spongy
palisade
epidermis
epidermis
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Monocot Root
http://www2.mcdaniel.edu/Biology/botf99/rootuse/monovsdi.htm
pith
xylem(vessel element& tracheids)
phloem
pericycle
pith
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Monocot root
xylem(vessel element& tracheids)
phloem
pericycle
endodermis
pith
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Monocot stemsepidermis
parenchyma
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Monocot Stem Vascular Bundle
xylem
sclerenchyma is called a bundle sheath inmonocot leaf vascular bundles
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Monocot Leaf
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Dicot Root
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
metaxylem
phloem
pericycle
endodermis
vascular cylinder = stele
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Dicot Lateral Root
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Dicot stems
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
Helianthus (sunflower)
phloem
vascularcambium
metaxylem
protoxylem
Trifolium (clover)
epidermis
cortex
pith
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Dicot Stem
interfasicularcambium
fasicularcambium
sclerenchyma
xylem
pith
phloem
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Dicot Stem Vascular Bundle sclerenchyma
tracheids
region ofprotoxylem
region ofmetaxylem
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Dicot Leaf
Stained cross-section through the leaf of lilac: 1 upper epidermis, 2 palisade parenchyma, 3 spongy parenchyma, 4 air cavity, 5 lower epidermis, 6 stomata, 7 trichome, 8 major vein, 9 xylem, 10 phloem, 11 supporting tissue (sclerenchyma)http://www.vcbio.science.ru.nl/en/virtuallessons/leaf/mesomorph/
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Dicot Leaf
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Dicot vs. Monocot Vascular Bundles
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
DICOT
MONOCOT
Sclerenchyma
tracheid
Sclerenchyma
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Dicot vs. Monocot Root
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Monocot vs. Dicot Stem
DICOTMONOCOT
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sclerenchyma
phloem
metaphloem
protoxylem
metaxylem
No vascular cambium – no secondary growth!
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WATER-CONDUCTING CELLS OF THE XYLEM
Tracheids
Pits
Tracheidswith circular-bordered pitsin their primary walls TRACHEIDS
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
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tracheids
perforation plates in the side walls of a vessel element
vessel elementswith perforation plates
VESSEL ELEMENTS
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tracheids
xylem rayvessel element
perforationplate
perforation plate: the end wall of a vessel element where the secondary cell wall was not deposited and the primary cell wall has been digested.
Ash wood
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
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Tracheids with annular thickenings
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
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3 yr Tilia stem (Basswood)
secondary xylem(tracheids &vessel elements)
secondary xylem(tracheids &vessel elements)
secondary xylem(tracheids &vessel elements)
vascularcambium
secondaryphloem
cork
corkcambium
cork + cork cambium = peridermvascular cambium to cork = Bark
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Cork Cambium
cork cambium
cork
from Biology 311 site Alison Roberts ([email protected]) © 1998-2012 AWR
lenticel