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Plant reproduction, image - Coggle Diagram
Plant reproduction
Moss Reproduction and Life Cycle
(nonvascular Plants)
Gametophyte stage is dominant (Larger).
Eggs are produced in the female gametophyte structure, called the archegonium.
Sperm are produced in the male structure, called the antheridium.
chemotaxis
: when Sperm move towards the archegonium in response to chemicals released by the female gametophyte.
Fertilization of an egg results in a zygote
Spores are released from the capsule when conditions are favorable.
protonema
: a small structure that can develop into a gametophyte and restart the cycle.
Vegetative reproduction
a form of asexual reproduction where the new plant grows from parts of the old plant.
Advantages
Faster than sexual reproduction, only one parent plant is needed
Produces uniform offspring
An agricultural technique to produce fruit without seeds
Naturally occurring vegetative reproduction
Fragments of plants such as mosses can be scattered by the wind, and resume growth in a new location
Some plants produce horizontal roots that can grow new plants, even after the root is cut.
Directed vegetative reproduction
Farmers and scientists use buds, leaves, stems, or root pieces from certain plants to grow new plants
Plant tissue can be placed on nutrient agar in sterile conditions to produce hundreds of identical plants
Fern Reproduction and Life Cycle (seedless vascular plants)
Sporophyte is the dominant stage(Larger).
Alternation of Generations
