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Floral determination in adventitious shoot meristems regenerated from leaves of day‐neutral tobacco
Author(s) -
Rivers Bruce A.,
Marcotrigiano Michael
Publication year - 1994
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1994.tb15412.x
Subject(s) - biology , shoot , meristem , petiole (insect anatomy) , botany , inflorescence , seedling , leafy , context (archaeology) , paleontology , hymenoptera
The developmental patterns of adventitious shoots regenerated from cultured leaf tissue and the petioles of leaf cuttings of flowering day‐neutral tobacco plants were assessed. Leaf tissue, removed from leaves within the inflorescence, was cultured on hormone‐free medium and produced a limited number of adventitious shoots. These shoots produced the same number of nodes that would be produced by a seedling meristem. Most leaf‐cutting derived shoots produced the same number of nodes that would be produced by a seedling meristem prior to flowering, while a few shoots produced very few nodes and flowered. Some plants appeared to be intermediate in response. Results indicated that the developmental state or the developmental response of all petiole cells is not the same. The influence of position and the potential reversibility in developmental fate of cell populations within leaves is discussed in the context of existing theory.