BOT 1200 Lecture Notes - Lecture 15: Flax, Luffa Aegyptiaca, Ground Tissue
15 Mar 2016
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Document Summary
Fiber is a chain of long thin cells that are thread-like with thick lignified walls. Sclerids are sclerenchyma cells that finction in structural support in fruits (also known as stone cells) Fiber cells are elongated; have tough cell walls. Most valuable fibers are nearly pure cellulose and white. Lignin and tannin tend to darken fiber, making it less valuable for textiles. Fubers are classified according to their associated plant organ. Surface fibers are usually associated with fruits and seeds. A fruit fiber for bathing and scrubbing (luffa aegyptiaca) Leaf fibers are associated with the leaf veins of moncot plants. Bast fibers are classified as soft fibers. Associated with the phloem tissue of various dicot stems; these are also known as phloem cap fibers (flax, hemp) Ginning is used to tear surface fibers from the seed coat of cotton seeds. Retting is the rotting of soft stem tissue by microbial action, leaving behind the fibers.
