sieve-tube element

sieve-tube element
noun or sieve-tube member
: a thin-walled elongated living cell that has no nucleus at maturity, is continuous with other similar cells by protoplasmic strands which pass through the perforations of specialized sieve plates, prob. functions primarily in the translocation of organic solutes, and is the basic element of the sieve tube — compare sieve cell

Useful english dictionary. 2012.

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  • Sieve tube element — in the plant, sieve elements are living cells. They are thick and circular and can be different colours.At the interface between two sieve tube members in angiosperms are sieve plates, pores in the plant cell walls that facilitate the movement of …   Wikipedia

  • sieve tube element — …   Useful english dictionary

  • sieve-tube member — noun see sieve tube element …   Useful english dictionary

  • sieve tube — noun tube formed by cells joined end to end through which nutrients flow in flowering plants and brown algae • Hypernyms: ↑vascular tissue • Part Holonyms: ↑phloem, ↑bast * * * noun : a tube consisting of an end to end series of thin walled… …   Useful english dictionary

  • sieve tube — Bot. 1. a vertical series of sieve cells in the phloem, specialized for the conduction of food materials. 2. a single sieve cell. [1870 75] * * * ▪ plant structure       in flowering plants, elongated living cells (sieve tube elements) of the… …   Universalium

  • sieve cell — noun : an elongated tapering cell characteristic of the phloem of gymnosperms and lower vascular plants that is basically similar in form, function, and relationships to a sieve tube element but distinguished by rather uniformly distinguished… …   Useful english dictionary

  • sieve area — noun also sieve field : an area in the wall of a sieve tube element, sieve cell, or parenchyma cell in which are clustered pores through which cytoplasmic connections pass to adjoining cells and which in sieve tube elements are typically most… …   Useful english dictionary

  • sieve element — noun : a transport element of phloem whether taking the form of a sieve cell or a sieve tube element …   Useful english dictionary

  • sieve plate — Perforated wall area in a sieve tube element, through which strands connecting sieve tube protoplasts can pass …   Glossary of Biotechnology

  • Phloem — Cross section of a flax plant stem: 1. Pith, 2. Protoxylem, 3. Xylem I, 4. Phloem I, 5. Sclerenchyma (bast fibre), 6. Cortex, 7. Epidermis In vascular plants, phloem is the living tissue that carries organic …   Wikipedia

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