干旱区生态环境知识资源中心(Arid): Entrainment of circadian rhythms of locomotor activity by ambient temperature cycles in the dromedary camel

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DOI	10.1038/s41598-020-76535-y
	Entrainment of circadian rhythms of locomotor activity by ambient temperature cycles in the dromedary camel
	Farsi, Hicham; Achaaban, Mohamed R.; Piro, Mohammed; Bothorel, Beatrice; Ouassat, Mohammed; Challet, Etienne; Pevet, Paul; El Allali, Khalid
通讯作者	El Allali, K
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	In the dromedary camel, a well-adapted desert mammal, daily ambient temperature (T-a)-cycles have been shown to synchronize the central circadian clock. Such entrainment has been demonstrated by examining two circadian outputs, body temperature and melatonin rhythms. Locomotor activity (LA), another circadian output not yet investigated in the camel, may provide further information on such specific entrainment. To verify if daily LA is an endogenous rhythm and whether the desert T-a-cycle can entrain it, six dromedaries were first kept under total darkness and constant-T-a. Results showed that the LA rhythm free runs with a period of 24.8-24.9 h. After having verified that the light-dark cycle synchronizes LA, camels were subjected to a T-a-cycle with warmer temperatures during subjective days and cooler temperatures during subjective nights. Results showed that the free-running LA rhythm was entrained by the T-a-cycle with a period of exactly 24.0 h, while a 12 h T-a-cycle phase advance induced an inversion of the LA rhythm and advanced the acrophase by 9 h. Similarly, activity onset and offset were significantly advanced. All together, these results demonstrate that the Ta-cycle is a strong zeitgeber, able to entrain the camel LA rhythm, hence corroborating previous results concerning the T-a non-photic synchronization of the circadian master clock.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000594818600022
WOS关键词	MANTLED GROUND-SQUIRRELS ; CIRCANNUAL CYCLES ; ACTIVITY PATTERNS ; BODY-TEMPERATURE ; SUPRACHIASMATIC NUCLEUS ; COMMON MARMOSETS ; CLOCK ; LIGHT ; ORGANIZATION ; MECHANISMS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327796
作者单位	[Farsi, Hicham; Achaaban, Mohamed R.; Ouassat, Mohammed; El Allali, Khalid] Hassan II Agron & Vet Med Inst, Comparat Anat Unit, Dept Biol & Pharmacol Vet Sci, Rabat Inst, BP 6202, Rabat 10101, Morocco; [Piro, Mohammed] Hassan II Agron & Vet Med Inst, Med & Surg Unit Domest Anim, Dept Med Surg & Reprod, Rabat, Morocco; [Bothorel, Beatrice; Challet, Etienne; Pevet, Paul] CNRS, Inst Cellular & Integrat Neurosci, Strasbourg, France; [Bothorel, Beatrice; Challet, Etienne; Pevet, Paul] Univ Strasbourg, Strasbourg, France
推荐引用方式 GB/T 7714	Farsi, Hicham,Achaaban, Mohamed R.,Piro, Mohammed,et al. Entrainment of circadian rhythms of locomotor activity by ambient temperature cycles in the dromedary camel[J],2020,10(1).
APA	Farsi, Hicham.,Achaaban, Mohamed R..,Piro, Mohammed.,Bothorel, Beatrice.,Ouassat, Mohammed.,...&El Allali, Khalid.(2020).Entrainment of circadian rhythms of locomotor activity by ambient temperature cycles in the dromedary camel.SCIENTIFIC REPORTS,10(1).
MLA	Farsi, Hicham,et al."Entrainment of circadian rhythms of locomotor activity by ambient temperature cycles in the dromedary camel".SCIENTIFIC REPORTS 10.1(2020).