- sieve cell
- A long and slender sieve element in vascular plants, characterized by relatively unspecialized sieve areas and tapering end walls that lack sieve plates.
Glossary of Biotechnology for Food and Agriculture . 2015.
sieve cell
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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 cell — Bot. an elongated cell whose walls contain perforations (sieve pores) that are arranged in circumscribed areas (sieve plates) and that afford communication with similar adjacent cells. [1870 75] * * * … Universalium
sieve cell — /ˈsɪv sɛl/ (say siv sel) noun an elongated, nucleated, food conducting cell of the phloem of pteridophytes and gymnosperms with perforations in the walls (sieve pores) arranged in circumscribed areas (sieve areas) which afford cytoplasmic… …
sieve cell — Functional, living transport cell type composing the phloem of gymnosperms … Expanded glossary of Cycad terms
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 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-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… … Useful english dictionary
sieve plate — noun or sieve disk : a wall or portion of a wall between sieve tube elements containing one or more sieve areas compare compound sieve plate, sieve tube * * * sieve plate noun (botany) A perforated area by which a sieve tube connects with another … 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
