Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1242/jeb.064972 |
Cutaneous water loss and covalently bound lipids of the stratum corneum in nestling house sparrows (Passer domesticus L.) from desert and mesic habitats | |
Clement, Michelle E.1; Munoz-Garcia, Agusti1,2; Williams, Joseph B.1 | |
通讯作者 | Munoz-Garcia, Agusti |
来源期刊 | JOURNAL OF EXPERIMENTAL BIOLOGY
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ISSN | 0022-0949 |
EISSN | 1477-9145 |
出版年 | 2012 |
卷号 | 215期号:7页码:1170-1177 |
英文摘要 | Lipids of the stratum corneum (SC), the outer layer of the epidermis of birds and mammals, provide a barrier to water vapor diffusion through the skin. The SC of birds consists of flat dead cells, called corneocytes, and two lipid compartments: an intercellular matrix and a monolayer of covalently bound lipids (CBLs) attached to the outer surface of the corneocytes. We previously found two classes of sphingolipids, ceramides and cerebrosides, covalently bound to corneocytes in the SC of house sparrows (Passer domesticus L.); these lipids were associated with cutaneous water loss (CWL). In this study, we collected adult and nestling house sparrows from Ohio and nestlings from Saudi Arabia, acclimated them to either high or low humidity, and measured their rates of CWL. We also measured CWL for natural populations of nestlings from Ohio and Saudi Arabia, beginning when chicks were 2. days old until they fledged. We then evaluated the composition of the CBLs of the SC of sparrows using thin layer chromatography. We found that adult house sparrows had a greater diversity of CBLs in their SC than previously described. During ontogeny, nestling sparrows increased the amount of CBLs and developed their CBLs differently, depending on their habitat. Acclimating nestlings to different humidity regimes did not alter the ontogeny of the CBLs, suggesting that these lipids represent a fundamental component of SC organization that does not respond to short-term environmental change. |
英文关键词 | house sparrows covalently bound lipids stratum corneum cutaneous water loss ontogeny nestlings desert |
类型 | Article |
语种 | 英语 |
国家 | USA ; Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000301299500023 |
WOS关键词 | PHENOTYPIC FLEXIBILITY ; PERMEABILITY BARRIER ; EPIDERMIS ; SPHINGOLIPIDS ; ENVIRONMENTS ; CORNEOCYTES ; CHEMISTRY ; BIRDS ; RAFTS ; SKIN |
WOS类目 | Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173501 |
作者单位 | 1.Dept Evolut Ecol & Organismal Biol, Aronoff Lab, Columbus, OH 43210 USA; 2.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, IL-84990 Midreshet Ben Gurion, Israel |
推荐引用方式 GB/T 7714 | Clement, Michelle E.,Munoz-Garcia, Agusti,Williams, Joseph B.. Cutaneous water loss and covalently bound lipids of the stratum corneum in nestling house sparrows (Passer domesticus L.) from desert and mesic habitats[J]. Ben-Gurion University of the Negev,2012,215(7):1170-1177. |
APA | Clement, Michelle E.,Munoz-Garcia, Agusti,&Williams, Joseph B..(2012).Cutaneous water loss and covalently bound lipids of the stratum corneum in nestling house sparrows (Passer domesticus L.) from desert and mesic habitats.JOURNAL OF EXPERIMENTAL BIOLOGY,215(7),1170-1177. |
MLA | Clement, Michelle E.,et al."Cutaneous water loss and covalently bound lipids of the stratum corneum in nestling house sparrows (Passer domesticus L.) from desert and mesic habitats".JOURNAL OF EXPERIMENTAL BIOLOGY 215.7(2012):1170-1177. |
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