Open AccessGibberellin-like substances in embryonic shoots of Scots pine in relation to generative differentiation
Author(s) -
Halina Kulikowska-Gulewska,
Jan Kopcewicz
Publication year - 2014
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1985.033
Subject(s) - scots pine , gibberellin , shoot , botany , inflorescence , endogeny , biology , dominance (genetics) , pinus <genus> , apical dominance , biochemistry , gene
Investigations were carried out on embryonic shoots of lateral and terminal buds of Scots pine (Pinus silvestris L.) of different age. at various stages of seasonal devclopment. The results show that there is a correlation between gibberellins content and apical dominance in pine. More are found in terminal buds than in lateral ones. The transition from a juvenile phase into a mature one in Scots pine is accompanied by a lowering of the gibberellin content. The formation of male inflorescences is accompanied by an increased amount of endogenous gibberellins and the appearence of a new group of non-polar gibberellin-like substances. The formation of female cones is connected with the lowering of endogenous gibberellin content