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Pimentel PB, Santigo CS, Ferraz JF, Morielle-Versute E, Taboga SR, Souza CC, Beguelini MR. Morphophysiology of the male reproductive accessory glands of the bat Pteronotus gymnonotus (Mormoopidae: Chiroptera). Tissue Cell 2023; 80:101991. [PMID: 36462383 DOI: 10.1016/j.tice.2022.101991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Mormoopidae is an exclusive Neotropical family of bats, distributed from southern Mexico to northeastern Brazil. Possibly due to its endemic distribution and very low occurrence (rarity), descriptions of their reproductive accessory glands (RAGs) are still lacking. Thus, this study aims to characterize the male RAGs of Pteronotus gymnonotus (Mormoopidae: Chiroptera). Results demonstrate that the RAGs of P. gymnonotus is composed of a prostatic complex, comprising two regions (ventral and dorsal prostates); urethral (Littre) glands, a pair of bulbourethral and ampullary glands, with the absence of seminal vesicles. The ventral prostate has an atypical epithelium, due to its holocrine secretion; which contains numerous PAS-positive globular vesicles. The dorsal prostate has a cubic-to-columnar pseudostratified epithelium, containing fluid PAS-negative secretion. The ampullary glands present cubic-to-columnar pseudostratified epithelium, with secretion varying from granular and PAS-negative to fluid and PAS-positive. Urethral glands are dispersed in the submucosa of the urethra, while the bulbourethral glands are located in the penile root. Both glands have cubic-to-columnar pseudostratified epithelium with PAS-positive globular secretion. In conclusion, we propose that the RAGs of P. gymnonotus possibly evolved from a common emballonurid ancestor, shared with the families Phyllostomidae and Noctilionidae, but with the development of an exclusive apomorphy, the ampullary glands.
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Affiliation(s)
- Pollyana B Pimentel
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
| | - Cornélio S Santigo
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
| | - Juliana F Ferraz
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil.
| | - Sebastião R Taboga
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil.
| | - Carolina C Souza
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
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Pimentel PB, Ferraz JF, Santigo CS, Soares EM, Morielle-Versute E, Taboga SR, Souza CC, Beguelini MR. Comparative analysis of male reproductive accessory glands in bats Histiotus velatus (Vespertilionidae), Molossus rufus (Molossidae), and Peropteryx leucoptera (Emballonuridae). Anat Rec (Hoboken) 2022. [PMID: 36579698 DOI: 10.1002/ar.25145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/22/2022] [Accepted: 12/10/2022] [Indexed: 12/30/2022]
Abstract
Despite the high number of species and wide geographic dispersion, reproductive accessory glands (RAGs) of bats have traditionally received little attention in the literature, with some species not even having a basic description of their composition and structure. Thus, this study aimed to analyze and compare the composition, anatomy, and histology of male RAGs of bat species belonging to three of the largest (cosmopolitan) bat families: Vespertilionidae (Histiotus velatus), Molossidae (Molossus rufus), and Emballonuridae (Peropteryx leucoptera), in order to understand the variations in the bat RAGs. The results showed that the RAGs of H. velatus, M. rufus, and P. leucoptera are composed of an intra-abdominal prostatic complex, associated with the urethra, urethral glands, and a pair of inguinal bulbourethral glands; without ampullary glands or seminal vesicles. The prostatic complex can be composed of two (M. rufus and P. leucoptera) or three (H. velatus) prostatic regions, and can be compact (P. leucoptera), semi-lobed (M. rufus), or multilobed (H. velatus). Each prostatic region has unique and distinct characteristics, with the ventral region presenting a holocrine nature, exclusive to bats; while the dorsal and/or dorsolateral regions have similar characteristics to the ventral prostate of rats and to the human peripheral zone.
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Affiliation(s)
- Pollyana B Pimentel
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Juliana Filgueira Ferraz
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Cornélio Souza Santigo
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Emília Miguel Soares
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - University Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - University Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Carolina C Souza
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
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Albernaz ESS, Santiago CS, Guerra LHA, Santos FCA, Góes RM, Morielle-Versute E, Taboga SR, Souza CC, Beguelini MR. The prostate of the bat Artibeus lituratus: Seasonal variations, abiotic regulation, and hormonal control. J Morphol 2021; 282:1188-1207. [PMID: 33913176 DOI: 10.1002/jmor.21362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/21/2021] [Accepted: 04/25/2021] [Indexed: 11/12/2022]
Abstract
The prostate is an important gland that contributes to the male reproductive process, producing secretions that are essential for maintaining ideal conditions for the survival of sperm. Studies indicate a wide variation in the occurrence, morphology, and physiology of this gland in mammals, especially in bats, with this variation being related not only to the number of regions and their degree of compaction/lobulation but also to fluctuations in their functioning throughout the year. Thus, the aim of this study was to evaluate the annual morphological and physiological variations of the male prostate of Artibeus lituratus and analyze their responses to annual abiotic variations and hormonal control. Sixty sexually adult males of A. lituratus were analyzed in this study, with five specimens collected monthly. Blood samples were submitted to serum hormone measurements and the prostates were morphologically, morphometrically, and immunohistochemically analyzed. The results indicated that the two prostatic regions (ventral and dorsal) of A. lituratus had different morphology, as well as different physiology and regulation. Annual fluctuations in abiotic factors seemed to influence the dorsal region more than the ventral region. Conversely, variations on testicular factors, such as testosterone and estradiol, influenced the ventral region more than the dorsal region. Despite these differences, both prostatic regions were strongly synchronized to the main reproductive peak of the species in September. The holocrine pattern of the ventral prostate was not directly affected by abiotic factors or by factors released by the testes.
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Affiliation(s)
- Edna S S Albernaz
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Cornélio S Santiago
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Luiz H A Guerra
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Fernanda C A Santos
- Department of Histology and Embryology, UFG - Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Rejane M Góes
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Carolina C Souza
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
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Ocampo‐González P, López‐Wilchis R, Espinoza‐Medinilla EE, Rioja‐Paradela TM. A review of the breeding biology of Chiroptera. Mamm Rev 2021. [DOI: 10.1111/mam.12236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paola Ocampo‐González
- Programa de Doctorado en Ciencias en Biodiversiad y Conservación de Ecosistemas Tropicales Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas Libramiento Norte Poniente 1150, Colonia Lajas Maciel Tuxtla Gutiérrez Chiapas29039México
| | - Ricardo López‐Wilchis
- Departamento de Biología Universidad Autónoma Metropolitana‐Iztapalapa Av. San Rafael Atlixco 186, Col. Vicentina Ciudad de México09340México
| | - Eduardo E. Espinoza‐Medinilla
- Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas Libramiento Norte Poniente 1150, Colonia Lajas Maciel Tuxtla Gutiérrez Chiapas29039México
| | - Tamara M. Rioja‐Paradela
- Posgrado en Ciencias en Desarrollo Sustentable y Gestión de Riesgos Universidad de Ciencias y Artes de Chiapas Libramiento Norte Poniente 1150, Colonia Lajas Maciel Tuxtla Gutiérrez Chiapas29039México
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Sohn JH, Fukui D, Nojiri T, Minowa K, Kimura J, Koyabu D. Three-Dimensional and Histological Observations on Male Genital Organs of Greater Horseshoe Bat, Rhinolophus ferrumequinum. J MAMM EVOL 2020. [DOI: 10.1007/s10914-020-09525-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAnatomy of bat genital organs has been conventionally studied by gross and microscopic observations to date. Here, we employ both histological observation and diceCT (diffusible iodine-based contrast-enhanced computed tomography) to study the detailed three-dimensional morphological structure of the male genital organs in bats, using the greater horseshoe bat, Rhinolophus ferrumequinum. This is the first study to three-dimensionally describe the whole reproductive organs of bats in detail. Our highly resolved three-dimensional reconstruction reveals that the male organs of R. ferrumequinum consist of paired testes, epididymides, deferent ducts, and five accessory genital glands. The boundary between the ampullary and vesicular glands has been difficult to identify in previous observations, but our diceCT imaging allowed us to clearly differentiate the two. We found that the ampullary gland is located at the terminal part of the deferent ducts, and the vesicular gland lies distal to the ampullary glands. This species possesses a single and carrot-shaped urethral gland, which is not found in most chiropteran families. The presence of the urethral gland in this species and its secretions suggest that after copulation this species is capable of forming a vaginal plug, which can seal the female’s vaginal orifice to block the entrance of spermatozoa from other males. The presence of the urethral gland and elongated epididymal tail and the fact that some individuals can terminate their hibernation and reactivate imply forced copulation on hibernating females can occur in R. ferrumequinum.
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Miotti MD, Mollerach MI, Barquez RM. Anatomy and histology of the prostate and glands of Cowper in three species of neotropical bats. J Morphol 2017; 279:294-301. [DOI: 10.1002/jmor.20771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 10/11/2017] [Accepted: 10/15/2017] [Indexed: 12/11/2022]
Affiliation(s)
- María Daniela Miotti
- PIDBA (Programa de Investigaciones de Biodiversidad Argentina), and PCMA (Programa de Conservación de los Murciélagos de Argentina) Facultad de Ciencias Naturales e Instituto Miguel Lillo; Universidad Nacional de Tucumán, Miguel Lillo 205, San Miguel de Tucumán; Tucumán 4000 Argentina
| | - Marcos I. Mollerach
- PIDBA (Programa de Investigaciones de Biodiversidad Argentina), and PCMA (Programa de Conservación de los Murciélagos de Argentina) Facultad de Ciencias Naturales e Instituto Miguel Lillo; Universidad Nacional de Tucumán, Miguel Lillo 205, San Miguel de Tucumán; Tucumán 4000 Argentina
| | - Ruben M. Barquez
- PIDBA (Programa de Investigaciones de Biodiversidad Argentina), and PCMA (Programa de Conservación de los Murciélagos de Argentina) Facultad de Ciencias Naturales e Instituto Miguel Lillo; Universidad Nacional de Tucumán, Miguel Lillo 205, San Miguel de Tucumán; Tucumán 4000 Argentina
- CONICET (Concejo Nacional de Investigaciones Científicas y Técnicas), San Miguel de Tucumán; Tucumán Argentina
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Santos RTS, Pires LRM, Albernaz ESS, Andrade CS, Santiago CS, Morielle-Versute E, Taboga SR, Beguelini MR. Morphological analysis of the male reproductive accessory glands of the batArtibeus lituratus(Phyllostomidae: Chiroptera). J Morphol 2017; 279:228-241. [DOI: 10.1002/jmor.20767] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/05/2017] [Accepted: 10/10/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Renata T. S. Santos
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia; Barreiras Bahia Brazil
| | - Laís R. M. Pires
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia; Barreiras Bahia Brazil
| | - Edna S. S. Albernaz
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia; Barreiras Bahia Brazil
| | - Cleber S. Andrade
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia; Barreiras Bahia Brazil
| | - Cornélio S. Santiago
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia; Barreiras Bahia Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany; UNESP - Univ. Estadual Paulista; São José do Rio Preto São Paulo Brazil
| | - Sebastião R. Taboga
- Department of Biology; UNESP - Univ. Estadual Paulista; São José do Rio Preto São Paulo Brazil
| | - Mateus R. Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia; Barreiras Bahia Brazil
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