Results 111 to 120 of about 3,308 (163)

Structure and functions of the vascular cambium

Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie, 1999
Following a general outline on the functioning of the cambium, the authors review the data acquired over the last 20 years. The interest is focused on: i) the ultrastructural characteristics of the two kinds of initials; ii) the early structural, metabolic and molecular modifications occurring during the first stages of daughter cell differentiation ...
S, Lachaud, A M, Catesson, J L, Bonnemain   +2 more
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Occurrence of crystals in vascular cambium

Protoplasma, 1984
Crystals are of common occurrence in plant tissues and considered to be waste products resulting from active metabolism of plant cells. They mostly occur in ray and vertical parenchyma of wood and bark of angiosperm trees and often develop in tissues which soon cease to be functional.
K. S. Rao, Y. S. Dave
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The vascular cambium: molecular control of cellular structure

Protoplasma, 2010
Indeterminate growth and the production of new organs in plants require a constant supply of new cells. The majority of these cells are produced in mitotic regions called meristems. For primary or tip growth of the roots and shoots, the meristems are located in the apices.
Juan Pablo, Matte Risopatron, Yuqiang, Sun, Brian Joseph, Jones   +2 more
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Temperature-dependent rate models of vascular cambium cell mortality

Canadian Journal of Forest Research, 2004
We use two rate-process models to describe cell mortality at elevated temperatures as a means of understanding vascular cambium cell death during surface fires. In the models, cell death is caused by irreversible damage to cellular molecules that occurs at rates that increase exponentially with temperature.
Matthew B Dickinson, Edward A Johnson
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The ontogeny of the vascular cambium inGinkgo biloba roots

The Botanical Magazine Tokyo, 1988
Observation was made on early ontogeny of vascular cambium in the developing root ofGinkgo biloba L. After completion of root elongation, the vascular meristem gradually acquires cambial characteristics. Strips of the periclinal division of cells in transverse section are observed on the inner side of phloem when the primary xylem and phloem in the ...
Woong Young Soh, Sung Sik Hong, Duck Yee Cho   +2 more
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Developmental changes in the vascular cambium ofDelonix regia Rafin

Proceedings / Indian Academy of Sciences, 1981
The developmental changes occurring in the vascular cambium ofDelonix regia have been studied in different age group trees having different circumferential central axis. It has been found that the cambial cells undergo considerable variation both in their number and dimension with the growing age.
A K M Ghouse, Shamima Hashmi
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On the origin of vascular cambium in dicotyledonous stems

Proceedings / Indian Academy of Sciences, 1980
The present paper reviews the relationship between the procambium and the vascular cambium. It is suggested that the procambium is not a pre-requisite for the formation of vascular cambium, even in the stems, as is claimed by several morphologists.
B G L Swamy, K V Krishnamurthy
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Studies on the vascular cambium

1974
The nature of the vascular cambium is discussed and the length of the elements in the secondary xylem related to the division and elongation cycles of the cambial fusiform initials. Particular attention is given to the activities of the storeyed cambium. The ontogeny of the storeyed cambium is described for Hoheria angustifolia Raoul. (Malvaceae).
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The vascular cambium: structure and function

2010
Perspective It is difficult to overemphasize the importance of the vascular cambium which produces secondary xylem and secondary phloem. In the following two chapters we shall discuss in detail the structure, functions, and the importance to the plant of these tissues which also have great significance for mankind.
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DEVELOPMENTAL CHANGES IN THE VASCULAR CAMBIUM IN LEITNERIA FLORIDANA

American Journal of Botany, 1967
Developmental changes in the vascular cambium of Leitneria floridana, a shrub, were determined primarily by an analysis of the secondary xylem. During the production of the first growth ring of secondary xylem, 37% of the anticlinal divisions in the fusiform initials were lateral, the remaining were oblique.
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