Plants Asexual Reproduction  Requires only one organism  Offspring will have the same genetic structure as the parents  Not as complex and requires.

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Plants
Asexual Reproduction
 Requires
only one organism
 Offspring will have the same genetic
structure as the parents
 Not as complex and requires far less
energy
 Organisms that are genetically
identical to their parent are known as
clones.
Rhizomes
 Grasses,
cattails and sedges
 Produce underground stems or
rhizomes
 Buds produce at the nodes
 If dies, a new separate plant will
form
Rhizome
Tubers
 Modified
rhizomes
 Irish potatoes
 Specialized stem branches grow
down into the ground and swell with
starch cells
 Buds will grow into new plants
 Buds are commonly termed “eyes”
Tubers
Runners
 Horizontally
growing stems produce
few leaves
 The stems run along the ground
 Runners can be cut from the parent
plant
 Wild strawberry and spider plant
Runners
Cuttings
 Vegetative
plants that have been
removed and rooted in soil or other
suitable material
 Made from stems, roots or leaves
 Geranium, Coleus, African violet
Cuttings
Bulbs
 Onions,
chives and lilies
 Very short stem surrounded by
fleshy leaves
 In the spring the shoot apex begins
to grow using the nutrients stored in
the leaves
Bulbs
Corms
 Similar
to bulbs except that there are
no storage leaves
 Nutrients are stored in the swollen
stem
Corms
Cell Culture
 Sometimes
just one cell can
regenerate into an entire plant
 One cell from a carrot taproot is put
into a tube of water with plant
nutrients
 The one cell divides and forms a
bunch of cells
 The small carrot plant will from into a
carrot identical to the carrot from
which the one cell came
Cell Culture
Tissue Culture
 Engineered
cells of plants
 Petunias, tobacco and tomatoes
 Place the engineered cell in an
environment with special hormones
and nutrients that encourage growth
 Tissue culture will form leaves and
roots and finally and entire plant will
grow.
Tissue Culture

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