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DOI | 10.1126/science.aay2346 |
Light-regulated collective contractility in a multicellular choanoflagellate | |
Brunet, Thibaut1,2; Larson, Ben T.1,2,3; Linden, Tess A.1,2; Vermeij, Mark J. A.4; McDonald, Kent5; King, Nicole1,2 | |
2019-10-18 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 366期号:6463页码:326-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Netherlands |
英文摘要 | Collective cell contractions that generate global tissue deformations are a signature feature of animal movement and morphogenesis. However, the origin of collective contractility in animals remains unclear. While surveying the Caribbean island of Curacao for choanoflagellates, the closest living relatives of animals, we isolated a previously undescribed species (here named Choanoeca flexa sp. nov.) that forms multicellular cup-shaped colonies. The colonies rapidly invert their curvature in response to changing light levels, which they detect through a rhodopsin-cyclic guanosine monophosphate pathway. Inversion requires actomyosin-mediated apical contractility and allows alternation between feeding and swimming behavior. C. flexa thus rapidly converts sensory inputs directly into multicellular contractions. These findings may inform reconstructions of hypothesized animal ancestors that existed before the evolution of specialized sensory and contractile cells. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000491290000044 |
WOS关键词 | NEMATOSTELLA-VECTENSIS OCCURS ; APICAL CONSTRICTION ; LIFE-HISTORY ; EVOLUTION ; ORIGIN ; PHOSPHODIESTERASE ; MORPHOGENESIS ; GASTRULATION ; PROTEIN ; ULTRASTRUCTURE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202580 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA; 2.Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA; 3.Univ Calif Berkeley, Biophys Grad Grp, Berkeley, CA 94720 USA; 4.Univ Amsterdam, CARMABI, Inst Biodivers & Ecosyst Dynam, Dept Aquat Microbiol, Amsterdam, Netherlands; 5.Univ Calif Berkeley, Electron Microscopy Lab, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Brunet, Thibaut,Larson, Ben T.,Linden, Tess A.,et al. Light-regulated collective contractility in a multicellular choanoflagellate[J]. SCIENCE,2019,366(6463):326-+. |
APA | Brunet, Thibaut,Larson, Ben T.,Linden, Tess A.,Vermeij, Mark J. A.,McDonald, Kent,&King, Nicole.(2019).Light-regulated collective contractility in a multicellular choanoflagellate.SCIENCE,366(6463),326-+. |
MLA | Brunet, Thibaut,et al."Light-regulated collective contractility in a multicellular choanoflagellate".SCIENCE 366.6463(2019):326-+. |
条目包含的文件 | 条目无相关文件。 |
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