Biology 2217B Study Guide - Final Guide: Corm, Solanaceae, List Of Root Vegetables
13 Apr 2018
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Starch root crop, tropical origin: asexual, among first plants domesticated by humans, made and stored in plastids (chloroplast in leaves, amyloplast in roots) Stolons or runners: horizontal stem, long intermode, above ground. Bulb: verti underground stem, food reserve in leaves. Corm: verti underground stem, food reserve in stem. Tuberous root: fibrous root, enlarger with food reserve. Stem tubers: potato true yam, underground stem (rhizome: (cid:862)eyes(cid:863) are (cid:271)uds for(cid:373) at (cid:374)odes. Tuberous storage roots: sweet potato: misname as yams, modified fibrous roots enlarge w/food reserve. Corms: taro: erect underground stem (storage in stem, not in leaves as in bulbs) Solanaceae: alternate leaves, sepals and petals fused into tube fruit a berry or capsule (tomato, potato, tobacco, eggplant) Food for peasant: subsist on potatoes, save wheat for nobility & export. White potato (andean highlands: (cid:862)freeze dried(cid:863) to (cid:373)ake chu(cid:374)o, grow well (cid:272)ool (cid:272)li(cid:373)ate, nutritional value: starch, protein, minerials/vit c.
