Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/978-3-319-46601-9_16 |
Phenotypic Plasticity in Desert Rodents Harderian Glands Under Seasonal Steroids Control | |
Saadi-Brenkia, O.1,2; Haniche, N.1 | |
通讯作者 | Saadi-Brenkia, O. |
会议名称 | 3rd International Multidisciplinary Microscopy and Microanalysis Congress (InterM) |
会议日期 | OCT 19-23, 2015 |
会议地点 | Oludeniz, TURKEY |
英文摘要 | Sex hormones activate reproductive behaviors throughout the Harderian glands (HG) in desert rodents. It appears that gonadal hormones have both organizational and activational effects on epithelial cells. This study, thus represents a significant advance in our understanding of the steroid actions that regulate cellular differentiation and thereby pheromones production. Our results reveal that HG of two desert rodents having an opposite lifestyle, Psammomys obesus (diurne) and Gerbillus tarabuli (nocturne) are capable of undergoing significant morphological changes from season to season. In both species, during the mating season, HG exhibit remarkable phenotypic responsiveness in order to produce chemical cues that promote sexual interaction. Small specimens from the HG were processed for light and transmission electron microscopic study. Obvious structural differences were observed between diurnal and nocturnal species. The gland is compound tubulo-alveolar, being characterized by a single layer of vacuolated columnar cells in Psammomys obeus, whereas two cells types were found in Gerbillus tarabuli, vacuolated columnar cells and pyramidal basal cells. In breeding season, a new cellular type (the same for both species) appears characterized by large lipid vacuoles. Porphyrins and cellular debris were observed in the glandular lumens indicating that important cellular remodelling occurs in the HG of desert rodents. The possible functional significance of this new cellular type was discussed. These results suggest, that phenotypic plasticity is an important means by which HG cope with environmental lighting. |
来源出版物 | 3RD INTERNATIONAL MULTIDISCIPLINARY MICROSCOPY AND MICROANALYSIS CONGRESS (INTERM) |
ISSN | 0930-8989 |
出版年 | 2017 |
卷号 | 186 |
页码 | 135-142 |
ISBN | 978-3-319-46600-2 |
EISBN | 978-3-319-46601-9 |
出版者 | SPRINGER INT PUBLISHING AG |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Algeria |
收录类别 | CPCI-S |
WOS记录号 | WOS:000398624800016 |
WOS关键词 | GERBIL MERIONES-UNGUICULATUS ; LACRIMAL GLAND ; HAMSTERS ; LIGHT ; EXPRESSION ; PHEROMONE ; MELATONIN ; PINEAL ; CELLS |
WOS类目 | Materials Science, Characterization & Testing ; Microscopy ; Spectroscopy |
WOS研究方向 | Materials Science ; Microscopy ; Spectroscopy |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/306348 |
作者单位 | 1.USTHB, Lab Biol & Physiol Organismes Equipe Neurobiol, Bab Ezzouar, Algeria; 2.Univ Mhamed Bougara Boumerdes, Dept Biol, Ave Independance, Boumerdes 35000, Algeria |
推荐引用方式 GB/T 7714 | Saadi-Brenkia, O.,Haniche, N.. Phenotypic Plasticity in Desert Rodents Harderian Glands Under Seasonal Steroids Control[C]:SPRINGER INT PUBLISHING AG,2017:135-142. |
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