Glands

Quay, W. B.

doi:10.1007/978-3-662-00989-5_10

Cited by 13 publications

(3 citation statements)

References 23 publications

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“…Moreover, some studies have hypothesised that the gular gland plays a role in roost marks in M. sinaloae , but no evidence supports this (Quay, 1970; Horst, 1966). Other potential roles of these glands could be indicators of male quality; a study on Leptonycteris curasoae (Phyllostomidae) reported that females choose males in relation to the development of odoriferous sebaceous patches that are closely associated with the size of the testicles (Muñoz‐Romo et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…In a recent study, the gular gland was proposed to be an important dimorphic character in bats, but the chemical nature of its secretions is not yet well known (Muñoz‐Romo et al, 2021). In particular, the gular glands have been histologically and morphologically described in some of Molossidae species, such as Molossus bondae , Molossus fluminensis (formerly Molossus rufus ), M. molossus and Tadarida brasiliensis (e.g., Dapson et al, 1977; Heideman et al, 1990; Horst, 1966; Quay, 1970). The gular glands of these species are characterised by the presence of sweat and sebaceous acini containing high levels of mucopolysaccharides and neutral lipids, unlike vespertilionid bats ( Eptesicus fuscus ), where the content is exclusively lipidic.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of the gular gland of three species of Molossidae bats (Mammalia: Chiroptera) from South America

Rodriguez

Olea

Aguirre

et al. 2023

The Anatomical Record

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The gular gland is a skin gland located in the suprasternal region of adult males of some bat families. Knowledge of the morphology and functional aspects of these gland types is often limited. This study aimed to describe the structure and composition of the gular glands of three molossid species (Eumops patagonicus, Molossus fluminensis and Molossus molossus) with respect to their reproductive activity and to define the mechanism involved in secretion release. Different histological, histochemical and immunohistochemical techniques were used to achieve these goals. The results revealed that the size and composition of this gland are variable and are mostly related to the lipid content during the reproductive season. The results also documented, for the first time, the occurrence of mechanoreceptors associated with the surface of the glandular duct by detecting an S100 protein, indicating that an external stimulus activates secretion. Previous studies on other species have classified the gland using obsolete criteria; hence, we adopted a new classification of adenomeres in this study. Moreover, we investigated the gland secretion mechanism previously proposed. This study defines the implications of this gland in the reproduction of this species. Our preliminary interpretation of the function of the gular gland is that it is a cutaneous exocrine gland activated by mechanoreceptors involved in the reproductive behaviour of the Molossidae family.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative study of the gular gland of three species of Molossidae bats (Mammalia: Chiroptera) from South America

Rodriguez

Olea

Aguirre

et al. 2023

The Anatomical Record

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“…Apocrine sudoriferous glands are tubular‐shaped glands that are often modified into a more saccular structure (Goodrich and Mykytowycz, 1972; Quay, 1955, 1972, 1986; Quay, 1970; Robertshaw, 1987). Apocrine sudoriferous glands are localized to specific body regions (e.g., facial, areolar, preputial, anal, inguinal, tarsal, and interdigital) and produce a chemically complex secretion including carbohydrate, lipid, and protein (Mykytowycz & Goodrich, 1974; Quay, 1955, 1972, 1986; Quay, 1970, 1977, 1986; Wyatt, 2007). These exocrine glands produce their chemical signals through either merocrine, apocrine, or holocrine processes (Montagna, 1962a, 1962b; Müller‐Schwarze, 1983; Quay, 1970; Table 1).…”

Section: Introductionmentioning

confidence: 99%

Gross and histological morphology of the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps)

Keenan-Bateman

McLellan

Rommel

et al. 2021

The Anatomical Record

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Odontocete cetaceans have undergone profound modifications to their integument and sensory systems and are generally thought to lack specialized exocrine glands that in terrestrial mammals function to produce chemical signals (Thewissen & Nummela, 2008). Keenan‐Bateman et al. (2016, 2018), though, introduced an enigmatic exocrine gland, associated with the false gill slit pigmentation pattern in Kogia breviceps. These authors provided a preliminary description of this cervical gill slit gland in their helminthological studies of the parasitic nematode, Crassicauda magna. This study offers the first detailed gross and histological description of this gland and reports upon key differences between immature and mature individuals. Investigation reveals it is a complex, compound tubuloalveolar gland with a well‐defined duct that leads to a large, and expandable central chamber, which in turn leads to two caudally projecting diverticula. All regions of the gland contain branched tubular and alveolar secretory regions, although most are found in the caudal diverticula, where the secretory process is holocrine. The gland lies between slips of cutaneous muscle, and is innervated by lamellar corpuscles, resembling Pacinian's corpuscles, suggesting that its secretory product may be actively expressed into the environment. Mature K. breviceps display larger gland size, and increased functional activity in glandular tissues, as compared to immature individuals. These results demonstrate that the cervical gill slit gland of K. breviceps shares morphological features of the specialized, chemical signaling, exocrine glands of terrestrial members of the Cetartiodactyla.

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Active generation glands present in neonates of some Cordylid Lizards: A case study ofCordylus macropholis (Sauria: Cordylidae)

1998

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Glands

Cited by 13 publications

References 23 publications

Comparative study of the gular gland of three species of Molossidae bats (Mammalia: Chiroptera) from South America

Comparative study of the gular gland of three species of Molossidae bats (Mammalia: Chiroptera) from South America

Gross and histological morphology of the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps)

Active generation glands present in neonates of some Cordylid Lizards: A case study ofCordylus macropholis (Sauria: Cordylidae)

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