BIOL 3060 Study Guide - Quiz Guide: Stoma, Aldehyde, Herbivore
Document Summary
| carotenoids (mutant vp14: corn mutant, aba2: arabidopsis mutant) | (flacca, sitiens: tomato mutants; droopy: potato mutant; aba3: arabidopsis mutant) Doesn"t have aba to inhibit germination, before kernels mature they began to germinate. Flacca characterize by tomato plants that wilt readily even in a greenhouse, don"t produce aba and don"t close stomates can"t maintain positive turgor. Terpene synthesis in plastid-carotenoids in cytosol-one step to make aba. Pic diff seeds from same family (legume seeds) - fertilization leads to development of zygote into embryo. Seed development embryogenesis, accumulation of storage compounds (usually carbs or lipids energy available to seed when it germinates), development of desiccation tolerance. Aba promotes: accumulation of seed storage protein, desiccation tolerance in the embryo. Seed dormancy: coat imposed; embryo (primary vs. secondary) Afterripening (reduced moisture content); chilling (0-10 c for imbibed seeds); light (exposure or photoperiod requirement) Embryo dormancy response to environmental factors depends on [aba] and [ga: inhibits ga-induced enzyme production.
