气候变化领域集成服务门户(CCPortal): Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging

CCPortal

DOI	10.1038/s41467-021-21314-0
	Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging
	Uwizeye C.; Decelle J.; Jouneau P.-H.; Flori S.; Gallet B.; Keck J.-B.; Bo D.D.; Moriscot C.; Seydoux C.; Chevalier F.; Schieber N.L.; Templin R.; Allorent G.; Courtois F.; Curien G.; Schwab Y.; Schoehn G.; Zeeman S.C.; Falconet D.; Finazzi G.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Eukaryotic phytoplankton have a small global biomass but play major roles in primary production and climate. Despite improved understanding of phytoplankton diversity and evolution, we largely ignore the cellular bases of their environmental plasticity. By comparative 3D morphometric analysis across seven distant phytoplankton taxa, we observe constant volume occupancy by the main organelles and preserved volumetric ratios between plastids and mitochondria. We hypothesise that phytoplankton subcellular topology is modulated by energy-management constraints. Consistent with this, shifting the diatom Phaeodactylum from low to high light enhances photosynthesis and respiration, increases cell-volume occupancy by mitochondria and the plastid CO2-fixing pyrenoid, and boosts plastid-mitochondria contacts. Changes in organelle architectures and interactions also accompany Nannochloropsis acclimation to different trophic lifestyles, along with respiratory and photosynthetic responses. By revealing evolutionarily-conserved topologies of energy-managing organelles, and their role in phytoplankton acclimation, this work deciphers phytoplankton responses at subcellular scales. © 2021, The Author(s).
语种	英语
scopus关键词	starch; acclimation; biomass; energy management; evolutionary biology; imaging method; morphology; physiological response; phytoplankton; primary production; species diversity; three-dimensional modeling; Article; carbon fixation; cell function; cell volume; Chlamydomonas; dinoflagellate; electron tomography; Emiliania; energy conservation; energy yield; Eustigmatophyceae; freeze substitution; gene expression; Haptophyta; Micromonas; mitochondrion; morphometry; Nannochloropsis; nonhuman; organelle size; organisms; Phaeodactylum; photosynthesis; physiology; phytoplankton; plastid; surface area; Symbiodinium; three-dimensional imaging; thylakoid membrane; acclimatization; cell fractionation; cytology; energy metabolism; light; metabolism; microalga; phytoplankton; radiation response; ultrastructure; Bacillariophyta; Eukaryota; Nannochloropsis; Phaeodactylum; Acclimatization; Energy Metabolism; Imaging, Three-Dimensional; Light; Microalgae; Mitochondria; Phytoplankton; Plastids; Subcellular Fractions
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251514
作者单位	Univ. Grenoble Alpes, CNRS, CEA, INRAe, IRIG-LPCV, Grenoble, France; Univ. Grenoble Alpes, CEA, IRIG-MEM, Grenoble, France; The Marine Biological Association, The Laboratory, Citadel Hill Plymouth, Devon, United Kingdom; Univ. Grenoble Alpes, CNRS, CEA, IRIG-IBS, Grenoble, France; Univ. Grenoble Alpes, Laboratoire Jean Kuntzmann, Grenoble, France; Univ. Grenoble Alpes, CNRS, CEA, EMBL, Integrated Structural Biology Grenoble (ISBG), Grenoble, France; Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, Heidelberg, Germany; Electron Microscopy Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany; Institute of Molecular Plant Biology, Department of Biology, ETH Zurich, Zurich, Switzerland
推荐引用方式 GB/T 7714	Uwizeye C.,Decelle J.,Jouneau P.-H.,et al. Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging[J],2021,12(1).
APA	Uwizeye C..,Decelle J..,Jouneau P.-H..,Flori S..,Gallet B..,...&Finazzi G..(2021).Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging.Nature Communications,12(1).
MLA	Uwizeye C.,et al."Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging".Nature Communications 12.1(2021).