sieve tube


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Related to sieve tube: sieve plate

sieve tube

n.
A tube through which food is conducted in angiosperms, formed of a series of sieve-tube elements joined end to end.

sieve tube

n
(Botany) botany an element of phloem tissue consisting of a longitudinal row of thin-walled elongated cells with perforations in their connecting walls through which food materials pass

sieve′ tube`



n. Bot.
a vertical series of cylindrical cells in the phloem, specialized for the conduction of food materials.
[1870–75]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sieve tube - tube formed by cells joined end-to-end through which nutrients flow in flowering plants and brown algae
vascular tissue - tissue that conducts water and nutrients through the plant body in higher plants
phloem, bast - (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes
References in periodicals archive ?
Primary phloem tissue is made up of sieve tube members, companion cells, fibers, and parenchyma.
Its bast consists of sieve tube elements, some fibres and parenchyma (Fig 1D).
Mesophyll cells shrank, and its vessels and sieve tubes ruptured at the tillering stage.