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48 Cards in this Set
- Front
- Back
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pollen
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male gametophyte carriers.
haploid, 2 cells, resistant particles that depend on external source for travel. Produced on anthers on fillaments. |
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microspore
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male gametophyte.
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macrospore
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female gametophyte.
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stalk
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bump in ovary.
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ovule
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in ovary that produces eggs.
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integument
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protection for the ovule.
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embryo sac
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female gametophyte.
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polar body
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triploid cell in embryo sac that becomes the endosperm (food)
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Double fertalization
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sperm fertilize an egg and the polar body for food and a zygote.
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aggragate fruit
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multiple fruit to one flower (with multiple stigmas).
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multiple fruit
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fused together fruit from different flowers.
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simple fruit
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one fruit per flower/stigma.
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vegetative reproduction
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plant asexual reproduction.
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parthenogenesis
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no nuclear/cellular fusion so that the new plant is just from an ovary.
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vegetative propagation
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when new plants form from tissues/structures of other plants in nature.
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tissue culture propogation
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when new plants form from undifferentiated plant cells (mostly in captivity)
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dehiscent fruit
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splits along the middle/a seam
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indehiscent fruit
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doesn't pop open/split
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accessory fruit
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receptacle fruit that the majority of the fruit is the plant receptacle.
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pistil
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group of fused carpels
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superior ovary
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ovary on the outside, above the sepals.
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semi-inferior ovary
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ovary halfway between the stem and the sepals.
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inferior ovary
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ovary below the sepals.
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inflorescences
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clusters of flowers.
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stamenate
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flowers with only functional stamens
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capillite
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flowers with only functional carpels.
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monoecious
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plants with both stamenite and carpellite flowers.
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dioecious
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plants with either stamenite or carpellite flowers but not both.
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microsporocyte
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4 microspores in sperm (anthers)
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self-incompatibility
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plants ability to reject their own pollen.
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Pin flowers
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short stamens and long styles
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thrum flowers
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short styles, long stamens
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S-Gene
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matching in alleles in same planats and blocks the grown of the pollen tube.
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hypocotyl
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embrionic axis below where cotyledons are attatched.
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radicle
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embryonic root and end of hypocotyl
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epicotyl
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portion of embryonic axis above where cotyledons are attatched.
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scutellum
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special type of cotyledon that is thin and absorbant
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coleoptile
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sheath that covers young shoot.
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coleorhiza
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sheath that covers young root.
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dormancy
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condition of dehydrated seed where there is very little metabolic activity and growth that is broken by favorable conditions.
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Fragmentation
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seperation of the parent into parts to make new plants.
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apomixis
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producing seeds asexually.
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callus
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mass of dividing/undifferntiated cells.
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grafting
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combining the best qualities of closely related plants.
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stock
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plant providing root system in grafting (lower end)
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scion
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twig grafted onto stock plant. uses stock for nutrients and generates its own fruit.
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transgenic
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genetically modified organisms engeneered to express trait from other speicies.
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protoplast fusion
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when the cell walls/protoplasts are removed by enzymes and cells fuse together to regenerate cell wall creating a plantlet.
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