Premium
PHYLLOTAXIS IN BRYOPHYLLUM TUBIFLORUM: MORPHOGENETIC STUDIES AND COMPUTER SIMULATIONS
Author(s) -
Hellendoorn P. H.,
Lindenmayer A.
Publication year - 1974
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1974.tb00963.x
Subject(s) - phyllotaxis , imperfect , asymmetry , helix (gastropod) , position (finance) , mathematics , physics , botany , biology , particle physics , shoot , meristem , ecology , linguistics , philosophy , finance , snail , economics
SUMMARY Bryophyllum tubiflorum exhibits several kinds of phyllotaxis patterns: pseudo‐bijugate, imperfect pairs, transition helix, imperfect trios, tricussate and inverted helix. Assumptions were introduced and computed in a computer model that these changes in phyllotaxis are due either to changing rates of production of an inhibitor on the apical surface, or alternatively to changing apical size. Observations on the structure of the apex supported the latter assumption. Mirror asymmetry in the position of the first two leaves was found necessary for the computer simulation, and was also confirmed by observation.