Wundkompensation Transplantation und Chimären bei Pflanzen

The Okra leaf shape mutation in cotton is active in all cell layers of the leaf

“…The effect of L 2 O on leaf morphology in various chimeral arrangements is consistent with the phenotypes of interspecific chimeras involving a variety of species (Winkler, 1910;Jørgensen and Crane, 1927;Krenke, 1933;Neilson-Jones, 1969) and intraspecific chimeras in potato (Howard, 1970). All of these studies suggest that the subepidermal layer plays a primary role in determin-ing the basic form of the leaf.…”

“…The role played by cells from the different meristematic layers has been studied by examining the phenotype of chimeral plants in which these primary layers contain tissue of different genotypes. Analyses of interspecific chimeras in the Solanaceae (Winkler, 1910;Jørgensen and Crane, 1927;Krenke, 1933) and spontaneous intraspecific chimeras in potato (Howard, 1970) suggest that the subepidermal layer plays a major part in determining leaf form. Similarly, the pronounced effect of the Kn1 mutation on the development of the epidermis in maize is mediated by the vascular tissue in the innermost mesophyll layer of the leaf (Hake and Freeling, 1986;Sinha and Hake, 1990).…”

Graft Incompatibility

“…Grafting is usually restricted to dicotyledonous plants, since their vascular bundle arrangement and presence of a continuous cambium offer a greater degree of potential grafting success than with monocotyledonous species. Successful grafts, however, have been achieved with monocots (Krenke 1933;Muzik and LaRue 1954). Grafting of monocots has been recently reviewed (Garner 1979;Hartmann et al 1990).…”

Factors Affecting Regeneration of the Horseradish Root

“…In the work reported here, no attempt was made to analyze the factors involved in the subsequent development of buds and roots after they were initiated. Reviews of the older literature on regeneration may be found elsewhere (9,12,15,16).…”