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Malpighian Tubules

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Malpighian Tubules 

excretory organs in the majority of arachnids, myriopods, and insects; they are blind tubular appendages of the intestine, on the boundary between the mesenteron (midgut) and proctodeum (hindgut). In arachnids and myriopods there is one pair of Malpighian tubules, in orthopterous insects up to 120 pairs, and in hymenopterous insects up to 150 pairs. In the wall of the Malpighian tubules there is a muscle layer which enables them to contract. In arachnids the Malpighian tubules excrete primarily guanine; in insects and myriopods, uric acid. In aquatic insects the Malpighian tubules perform an osmoregulatory function.



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Some epimastigotes migrate to the terminal part of the intestine and the malpighian tubules.
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.
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.
 
 
 
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