Articles
EFFECT OF SUCROSE ON SCLERIFICATION OF BARK CELLS IN BETULA PENDULA ROTH
Article number
835_10
Pages
117 – 128
Language
English
Abstract
Research was carried out on silver birch plants Betula pendula Roth var. pendula. Experiments in which exogenous sucrose was applied to the silver birch trunk tissues have demonstrated that sucrose excess results in formation of structural abnormalities similar to those observed during formation of abnormal patterned wood in Karelian birch B. pendula var. carelica (Merkl.) Hämet-Ahti.
Pathways of sucrose excess utilization are connected with transformation of conducting phloem elements into sclereids with thick ligneous cell walls and formation of storage parenhyma cells in the wood.
Injections in the trunk tissues of sucrose, glucose and fructose solutions have shown that the key part in the abnormal morphogenesis of trunk cells and tissues belongs to the rise in both concentration of sucrose and its decomposition products in the zones of cell division and differentiation – cambial and pericambial zones.
Pathways of sucrose excess utilization are connected with transformation of conducting phloem elements into sclereids with thick ligneous cell walls and formation of storage parenhyma cells in the wood.
Injections in the trunk tissues of sucrose, glucose and fructose solutions have shown that the key part in the abnormal morphogenesis of trunk cells and tissues belongs to the rise in both concentration of sucrose and its decomposition products in the zones of cell division and differentiation – cambial and pericambial zones.
Authors
L.L. Novitskaya
Keywords
excess of transport sugars, effect on cell differentiation, sclereid formation, Betula pendula Roth
Online Articles (14)