Germination and Growth - Research Article from Macmillan Science Library: Plant Sciences

This encyclopedia article consists of approximately 4 pages of information about Germination and Growth.
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Growth and Development

The embryo has a bipolar axis, with a region of cell division retained at each end. These regions, called meristems, maintain this activity throughout the life of the plant. The meristem at the stem apex includes an outer layer, whose cells divide in only one plane to produce more surface area, and an inner layer whose cells divide in all directions to produce the interior bulk. From these layers are produced more stem, leaves, and ultimately flowers. By contrast, the root meristem produces only root tissue, covered at its apex by a root cap, whose hardy cells protect the delicate internal meristem region as the root pushes into the soil.

Whenever leaves are formed, lateral buds are also formed in the angle between leaf base and its insertion into the stem.

Each lateral bud contains a meristem, which is generally kept inactive by the...

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This section contains 1,058 words
(approx. 4 pages at 300 words per page)
Buy the Germination and Growth Encyclopedia Article
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Macmillan Science Library: Plant Sciences
Germination and Growth from Macmillan Science Library: Plant Sciences. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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