Regeneration in Mutilated Seedlings

Root Formation in Isolated Cotyledons of Brassica Napus and Raphanus Sativus

“…Margery C. Carlson LA RUE (1933) studied the regeneration of parts of mutilated seedlings and reported that adventitious roots and shoots are produced by cotyledons and hypocotyls when these are removed and placed under sterile conditions on moist filter paper or on agar containing Shive's solution. He removed the cotyledons from the seedlings when they were "well out of the seed coats."…”

The Effects of Age and Root Formation on the Life‐Span of Excised Cotyledons of Cucurbita pepo

“…Root formation from the cut end of an excised leaf or cotyledon extends its life-span and maintains it in a healthy state for a certain period (LaRue 1933, Simon 1967. The maintenance of the vigour of rooted leaves may be due to the supply of certain essential requirements from the roots (Gregory and Samantaria 1950, Chibnall 1954, Woolhouse 1967.…”

Root Formation by Detached White Mustard (Sinapis alba) Cotyledons

“…The cotyledons of a number of plant species are known to produce roots when detached from the developing seedling (van Teighem 1873, La Rue 1933, but the process of root production by excised cotyledons is neverthe-Ie.ss poorly documented. This seems surprising in view of the interest which has been shown from time to time in the rooting of leaves and the far greater convenience of cotyledons as an experimental system.…”

“…During a survey of the rooting behaviour of a range of cotyledon types, La Rue (1933) indicated that the age of the cotyledon could have a marked effect on its ability to root. However, he did not investigate in any detail the Pki/siol.…”