Malpighian tubule system

Stylised diagram of the last part of the insect's digestive tract showing malpighian tubule (orthopteran type)

The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids and tardigrades. It has also been described in some crustacean species,^[1] and is likely the same organ as the posterior caeca which has been described in crustaceans.^[2]^[3]^[4]^[5]^[6]

The system consists of branching tubules extending from the alimentary canal that absorbs solutes, water, and wastes from the surrounding hemolymph. The wastes then are released from the organism in the form of solid nitrogenous compounds and calcium oxalate. The system is named after Marcello Malpighi, a seventeenth-century anatomist.

^ Henson, H. (1932). "The Development of the Alimentary Canal in Pieris Brassicae and the Endodermal origin of the Malpighian Tubules of Insects". Journal of Cell Science. s2-75 (298): 283–305. doi:10.1242/jcs.s2-75.298.283.
^ Castejón, Diego; Rotllant, Guiomar; Alba-Tercedor, Javier; Ribes, Enric; Durfort, Mercè; Guerao, Guillermo (4 February 2022). "Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): Origin, development and potential role". BMC Zoology. 7 (1): 9. doi:10.1186/s40850-022-00108-x. PMC 10127032. PMID 37170150.
^ "Comparative Anatomy of the Alimentary Canal of Hyperiid Amphipods". Journal of Crustacean Biology. 14 (2): 346–370. 1994. doi:10.1163/193724094X00335.
^ Graf, Francois; Meyran, Jean-Claude (1983). "Premolt calcium secretion in midgut posterior caeca of the crustacean Orchestia: Ultrastructure of the epithelium". Journal of Morphology. 177 (1): 1–23. doi:10.1002/jmor.1051770102. PMID 30064178. S2CID 51890859.
^ Günzl, Hans (1991). "The ultrastructure of the posterior gut and caecum inAlona affinis (Crustacea, Cladocera)" (PDF). Zoomorphology. 110 (3): 139–144. doi:10.1007/BF01632870.
^ Shyamsundari, K.; Rao, K. Hanumantha (1976). "Studies on the Alimentary Canal of Amphipods. Excretory Caeca". Crustaceana. 31 (2): 190–192. doi:10.1163/156854076X00224. JSTOR 20103092.

[1] Henson, H. (1932). "The Development of the Alimentary Canal in Pieris Brassicae and the Endodermal origin of the Malpighian Tubules of Insects". Journal of Cell Science. s2-75 (298): 283–305. doi:10.1242/jcs.s2-75.298.283.

[2] Castejón, Diego; Rotllant, Guiomar; Alba-Tercedor, Javier; Ribes, Enric; Durfort, Mercè; Guerao, Guillermo (4 February 2022). "Morphological and histological description of the midgut caeca in true crabs (Malacostraca: Decapoda: Brachyura): Origin, development and potential role". BMC Zoology. 7 (1): 9. doi:10.1186/s40850-022-00108-x. PMC 10127032. PMID 37170150.

[3] "Comparative Anatomy of the Alimentary Canal of Hyperiid Amphipods". Journal of Crustacean Biology. 14 (2): 346–370. 1994. doi:10.1163/193724094X00335.

[4] Graf, Francois; Meyran, Jean-Claude (1983). "Premolt calcium secretion in midgut posterior caeca of the crustacean Orchestia: Ultrastructure of the epithelium". Journal of Morphology. 177 (1): 1–23. doi:10.1002/jmor.1051770102. PMID 30064178. S2CID 51890859.

[5] Günzl, Hans (1991). "The ultrastructure of the posterior gut and caecum inAlona affinis (Crustacea, Cladocera)" (PDF). Zoomorphology. 110 (3): 139–144. doi:10.1007/BF01632870.

[6] Shyamsundari, K.; Rao, K. Hanumantha (1976). "Studies on the Alimentary Canal of Amphipods. Excretory Caeca". Crustaceana. 31 (2): 190–192. doi:10.1163/156854076X00224. JSTOR 20103092.

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Malpighian tubule system

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