Malpighian tubule


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Related to Malpighian tubule: Renin-angiotensin-aldosterone system

Malpighian tubule

n.
Any of the tubules that extend from the posterior portion of the digestive tract of insects and certain other arthropods and that absorb waste material from the hemolymph for excretion. Also called Malpighian tube.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
The tested tissues included cuticle, fat body, hemolymph, Malpighian tubule, midgut, and silk gland.
ZBTB6 expression was present in the Malpighian tubule, integument, fat body, and midgut.
The internal, nonsexual traits measured were the length and area of the stalk connecting the malpighian tubule to the pyloric region of the ventriculus (referred from now on as malpighian tubule).
RNAs from different tissues (fat body, midgut, and Malpighian tubules of adults), as well as 1st- and 2nd-instar larvae, were isolated by using RNeasy[R] Plus Micro Kit with Qiageng DNA Eliminator spin column (Qiagen, Hilden, Germany).
The expression levels of BdEcR-Bl in the gut and the Malpighian tubule greatly exceeded those in the trachea and fat body.
Associated with the digestive tract, but part of the excretory system, are the Malpighian tubules (Figure 4).
What we observed was quite intriguing: in Celera, Cyp6g1 was expressed in the midgut, the Malpighian tubules and the fat body, the tissues 'traditionally' associated with the detoxification of xenobiotics.
Temperature-shocked larvae (positive controls) showed a maximum [beta]-galactosidase activity in all the tissues except Malpighian tubules (Figure 2B).
However, when the characters that have been used to connect the insects and the myriapods were reviewed, the results suggested that they are either suspected of being convergent (i.e., Malpighian tubules, tracheae) or are not significant in a phylogenetic discussion (loss or absence of characters) (1, 2).
Giebultowicz of Oregon State University in Corvallis and her colleagues have found biological clocks in the testes of moths and in the fruit fly's Malpighian tubules, excretory organs similar to kidneys.