BIOL 1050 Lecture Notes - Lecture 2: Anemophily, Flower Flower, Sporopollenin

• School: University of Guelph
• Department: Biology
• Course: BIOL 1050
• Professor: Steve Bowley

Document Summary

Difficult bc pla(cid:374)ts are(cid:374)"t (cid:373)o(cid:271)ile so has adapted to (cid:373)o(cid:448)e (cid:373)ale ga(cid:373)etes arou(cid:374)d a(cid:374)d disperse seed. Outer coating (exine) comes in different patterns and is composed of sporopollenin: sporopollenin is extremely resistant to degradation and helps protect pollen in harsh environments. It"s a(cid:373)o(cid:374)g o(cid:374)e of the (cid:373)ost (cid:272)he(cid:373)i(cid:272)all(cid:455) i(cid:374)ert pol(cid:455)(cid:373)ers, (cid:449)ith a(cid:374) u(cid:374)k(cid:374)o(cid:449)(cid:374) (cid:272)o(cid:373)positio(cid:374), (cid:271)ut it"s likel(cid:455) di(cid:448)erse a(cid:374)d (cid:373)ulti-component. Hard to break it up i(cid:374)to pie(cid:272)es so it"s hard to figure out (cid:449)hat"s i(cid:374) it. Palynology: study of particulates in sediments and fossils. Pollen can be used to: reconstruct past environments, follow changes in plant ecosystems over time, link populations to climate change, determine type of honey bees created/used to authenticate honey. Transfer of pollen from an anther to a stigma. Wind pollinated species: many trees (pine), grasses, grapes: release lots of pollen, causing people with allergies to suffer, video: wind pollination.