sieve elements

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Related to sieve element: sieve plate, sieve tube

sieve elements

[′siv ‚el·ə·məns]
(botany)
The food-conducting cells of phloem tissue; may be either sieve cells (in seedless vascular plants and gymnosperms) or sieve-tube members (in angiosperms).
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Aside from the total time of penetration in the sieve elements with saliva secretion (E1) and sap ingestion (E2), the xylem elements (G) were the central interest in this study.
Tjallingii (1990) suggested that the E1e waveform might represent the watery salivation activity that normally occurs during E1 in sieve elements.
Effects of solenopsis invicta (Hymenoptera: Formicidae) tending on the probing behavior of Phenacoccus solenopsis (Hemiptera: Pseudococcidae)
One of the studies on the tobacco mosaic virus (TMV) contributed to the characterization of the P-protein, a common cell component in the sieve element of dicotyledons.
When the bodies are formed, the sieve element is still an immature but complete cell containing a nucleus and other organelles and having a vacuole that is delimited by a tonoplast membrane.
The virus may appear close to the cell walls of the sieve element, located between the cisternae of the stacked endoplasmic reticulum, or may be found in the P-protein-containing pores of the sieve plates.
Fixation of images of sieve element plastids in Beta.
A crystaline inclusion in sieve element nuclei of Amsinckia II.
callose: a carbohydrate found as a common cell wall constituent in sieve areas of a sieve element.
definitive callose: usually massive deposits in sieve elements at cessation or interruption of translocation in the sieve element.
Profiles of pioneer women scientists: Katherine Esau
The arrangement of axial parenchyma, rays, fibres and periderm follow the pattern proposed by Furuno (1990), in which small axial parenchyma bands alternate with fibre bands or sieve elements, except in C.
Secondary stem anatomy and uses of four drought-deciduous species of a tropical dry forest in Mexico
In the one sample, and in other Dioscorea species investigated, the plastids of anastomosal sieve elements located in the node of stems are distinguished by cuneate crystals that are much smaller than those of all other sieve elements: see figure 8.
Sieve elements of internodal and nodal anastomoses of the monocotyledon liana Dioscorea.
Sieve-element plastids and evolution of monocotyledons, with emphasis on melanthiaceae sensu lato and Aristolochiaceae-Asaroideae, a putative dicotyledon sister group

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