Reproduction of Flowering Plants

Asexual reproduction

Fragmentation

Root system

Originalplant

Suckers

Sucker

Plantlets

Rhizome

Adventitiousroots

Tuber

Roots

RhizomeBulb

Adventitiousroots

Stem

Fleshyleaves

Corm(modifiedstem)

Leaf Scars

Axillary bud

Adventitiousroots

old corm(last year’s)

old Fig. 35.18Adventitiousroots

Newshoot

Scale leaf(at node)

Stolon (runner)

Asexual reproduction

Asexual reproduction Cuttings

Asexual reproduction: Grafting

stock = main body (usually roots & some stem)

scion = new plant part

Asexual reproduction:Tissue culture

artificial seeds

(usually use alginate to encapsulate)

Asexual reproduction

seeds without sex

Eudicot flower

= microspore mother cell

(tetrad arrangement)

Making a male gametophyte

2-3 cells

Eudicot flower

= megaspore mother cell

Making a female gametophyte

micropyle

7 cells

complete

vs. incomplete

perfect

vs. imperfect

male

female

Hermaphroditic/bisexual

vs. unisexual flowers

Monoecious plants

Dioecious plants

solitary

inflorescences

Pollination

Self-incompatible

Self compatible

stigma

Double fertilization

Eudicot seed development

Eudicot seed (bean)

Monocot seed (corn; old 36-2b)

(scutellum)

Plumule

Simple Fruits

Aggregate fruit: one flower with multiple carpels

blackberry

Inflorescence (a cluster of flowers on a common floral stalk)

Singlefemaleflower

Multiple fruit

Old Fig. 35.13

mulberry

Accessory fruit

Dispersal