Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).

The facial pits of rattlesnakes, copperheads, lanceheads, bushmasters and other American and Asian pitvipers (Crotalinae) are highly innervated and densely vascularized infrared (IR) receptor organs. For over a century, studies have focused on a small sample of model species from North America and A...

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Main Authors: Wilmar Bolívar-G, Marta M Antoniazzi, Taran Grant, Carlos Jared
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24595025/?tool=EBI
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author Wilmar Bolívar-G
Marta M Antoniazzi
Taran Grant
Carlos Jared
author_facet Wilmar Bolívar-G
Marta M Antoniazzi
Taran Grant
Carlos Jared
author_sort Wilmar Bolívar-G
collection DOAJ
description The facial pits of rattlesnakes, copperheads, lanceheads, bushmasters and other American and Asian pitvipers (Crotalinae) are highly innervated and densely vascularized infrared (IR) receptor organs. For over a century, studies have focused on a small sample of model species from North America and Asia. Based on an expanded survey of Central and South American crotalines, we report a conspicuous accessory structure composed of well-defined papillae that project from the anterior orbital adnexa. The papillae are continuous with the inner chamber of the IR receptor organ and our histological and ultrastructural data suggest that they possess a well-developed nervous network and extensive vascularization; however, they lack the characteristic IR-sensitive terminal nerve masses found in the IR-receptive pit membrane. The function of the IR receptor organ papillae is unknown.
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spelling doaj.art-5efbc2af7b7149e5b0771cedcde47de42022-12-21T23:19:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0193e9062210.1371/journal.pone.0090622Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).Wilmar Bolívar-GMarta M AntoniazziTaran GrantCarlos JaredThe facial pits of rattlesnakes, copperheads, lanceheads, bushmasters and other American and Asian pitvipers (Crotalinae) are highly innervated and densely vascularized infrared (IR) receptor organs. For over a century, studies have focused on a small sample of model species from North America and Asia. Based on an expanded survey of Central and South American crotalines, we report a conspicuous accessory structure composed of well-defined papillae that project from the anterior orbital adnexa. The papillae are continuous with the inner chamber of the IR receptor organ and our histological and ultrastructural data suggest that they possess a well-developed nervous network and extensive vascularization; however, they lack the characteristic IR-sensitive terminal nerve masses found in the IR-receptive pit membrane. The function of the IR receptor organ papillae is unknown.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24595025/?tool=EBI
spellingShingle Wilmar Bolívar-G
Marta M Antoniazzi
Taran Grant
Carlos Jared
Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).
PLoS ONE
title Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).
title_full Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).
title_fullStr Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).
title_full_unstemmed Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).
title_short Discovery of a novel accessory structure of the pitviper infrared receptor organ (serpentes: viperidae).
title_sort discovery of a novel accessory structure of the pitviper infrared receptor organ serpentes viperidae
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24595025/?tool=EBI
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