أهمیة الوصلاث الجانبية في انىقل الھیدرولیكي خلال فتزاث انىمو الخضزي عىذ النباتات المتخشبة
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Date
2017-05-30
Authors
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Publisher
Université of Eloued
Abstract
The objective of this study is to determine the spatial existence and
anatomical distribution of immature living vessels in the young
developing plant stems, and to determine the effect of living vessels
on the pattern and direction of movement in the developing xylem
networks. The used tests were; the suction-coloration test and the
single-vessel dye injection. These tests were applied on the Albezia
lophanta. All experiments were conducted in the scientific research
center for arid regions (CRSTRA)-Touggourt.
The results showed that living vessels occurred along the xylem
network of young shoots. These vessels differentiated as successive
layers and distributed between the vascular cambium and mature dead
vessels. Concerning the single-vessel dye injection test, it is observed
that water moved in the lateral direction through the lateral contacts,
and this clearly demonstrate the effect of living vessels on the
hydraulic architecture and movement patterns in the developing xylem
networks.
Description
Biologie et Valorisation des Plantes
Keywords
xylem network; immature living vessels; mature dead vessels; suction-coloration test; single-vessel dye injection; hydraulic transport; lateral transport; axial transport; lateral contacts.