BIOA02H3 Lecture Notes - Bromus, Cenozoic, Saponaria
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BIOA02H3 Full Course Notes
Verified Note
43 documents
Document Summary
From tree to seed: transport in plants, plant nutrition and soils, plant defense, plant life on the edge. Lecture 8 notes (from tree to seed);aka sex in plants: how to avoid doing it yourself, self incompatiblilty no fertilization with own pollen because there is biochemical self recognization. Stigma change biochemical surface, rejects its own pollen, if pollen gets into pollen tube, a plug is produced to prevent inbred offspring. e. g fruit trees such as apple trees, chrry, pear: sex slaves of the plant kingdom. Flowers: ingenious solution of angiosperms: non-directed or directed moblilty of pollen to seek egg. Insects involved in angiosperms from smallest to largest influence: diptera, Assurance of seed set: sheer mechanisms, bring female and male gametes together ot at least replace the two parents. Pollination syndromes: direct and indirect moblility of pollen to seek egg. Specialization of floral architecture, attraction, food requirements, rewards.
