A stylet is a hard, sharp, anatomical structure found in some invertebrates. For example, the word stylet or stomatostyle is used for the primitive piercing mouthparts of some nematodes[1] and some nemerteans. In these groups the stylet is a hardened protrusible opening to the stomach. These stylets are adapted for the piercing of cell walls and usually function by providing the operative organism with access to the nutrients contained within the prey cell.
The mouthparts of tardigrades, diptera and aphids[2] are also called stylets.[3]
In octopodes, the stylets are internal, needle-like bent rods within the mantle, the vestigial remnants of an external shell.[4]
References[edit]
- ^ "Digestive System". Nemaplex- The Nematode-Plant Expert Information System. Department of Nematology, University of California, Davis. Retrieved 26 November 2013.
- ^ W. Allen Miller; Steven A. Whitham (2013), "Plant viruses", in David M. Knipe; Peter Howley (eds.), Fields Virology (6th ed.), Wolters Kluwer, p. 2311, ISBN 9781451105636
- ^ "An Introduction to Insect Structure" (PDF). Biology.ualberta.ca. Retrieved 10 July 2018.
- ^ Lourenço, Sílvia; Moreno, Ana; Narciso, Luís; Pereira, João; Rosa, Rui; González, Ángel F. (September 2015). "Stylet (vestigial shell) size in Octopus vulgaris (Cephalopoda) hatchlings used to determine stylet nucleus in adults". Journal of the Marine Biological Association of the United Kingdom. 95 (6): 1237–1243. Bibcode:2015JMBUK..95.1237L. doi:10.1017/S0025315415000478. hdl:10261/124380.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction