tracheary element


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tra·che·ar·y element

 (trā′kē-ĕr′ē)
n.
Either of two types of elongated water-conducting cells having lignified walls and found in the xylem of vascular plants; a tracheid or vessel element.

[Obsolete trachea, a water-conducting structure in xylem resembling insect tracheae; see trachea + -ary.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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(5) A similar phenomenon was also reported for transdifferentiation of mesophyll cells of Zinnia elegans into xylem cells termed tracheary elements. (17),(18) If Zinnia mesophyll cells in suspension are cultured below a critical cell density, the frequency of tracheary element formation is greatly decreased.
Under in vitro conditions, ethylene enhanced the regeneration efficiency, increased the shoots number and height, improved rooting and stimulated the tracheary element differentiation (Prameswara et al., 2009; Pesquet & Tuominem, 2011; Yasmin et al., 2014).
Imperforate tracheary element types and vesturing presence or absence (Fig.
Establishing in vitro Zinnia elegans cell suspension culture with high tracheary element differentiation.
Pit membranes are structural components connecting one tracheary element to another.
Vascular patterning can easily be analyzed during tracheary element differentiation form preexisting vasculature, however, their identification during the pre-existing vasculature is not an easy task [4].
2002), mark certain developmental stages such as tracheary element formation, lignification and other cross-linking processes in the cell wall (Teichmann 2001, Fath et al.
Other topics include leaf senescence, the biology of arabinogalactan proteins, light regulation of stomatal movement, tetrapyrrole biosynthesis in higher plants, ATP-binding cassette transporters, and tracheary element differentiation.
Imperforate tracheary elements. Bailey & Tupper (1918) offered a muchreproduced drawing schematizing the tracheid as a primitive type of tracheary element in angiosperms; from this, vessels (first with scalariform, ultimately simple perforation plates) were progressively derived on the one hand, whereas on the other hand, imperforate tracheary elements progressively lost pit borders and changed (by implication, gradually) from conductive to mechanical cells.
In this system, the application of estrogen induces VND6 gene expression, which in turn initiates tracheary element differentiation from 80% of the cells within 48h.