Root tuber

(Latin tuber, tuber English) - part of the th ickened root, acting in the plant function barns, a warehouse tha t is up substances, mainly proteins and sugars - especially starc h. Bulb is built mainly of parenchyma tissue. Tubers Root manufac tures such as dahlia, Lesser celandine. In some plants (eg orchids) bulb can store water. At root is a perennial bulb przetrwalnikowym body. During the period, unfavorable vegetation such as winter or drought, the rush of above-ground plant dies, but the tubers, in which substances are parts of canes and buds, can reproduce a new plant.