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Cultivation of halophilic archaea(class Halobacteria)from thalassohaline and athalassohaline environments

Marine Life Science & Technology 2021年第2期3卷 243-251页

作者： Heng-Lin Cui Mike L.Dyall-Smith School of Food and Biological Engineering Jiangsu UniversityZhenjiang212013China Veterinary Biosciences Faculty of Veterinary and Agricultural SciencesUniversity of MelbourneParkville3010Australia Computational Biology Group Max-Planck-Institute of Biochemistry82152MartinsriedGermany

As a group,the halophilic archaea(class Halobacteria)are the most salt-requiring and salt-resistant microorganisms within the domain *** archaea flourish in thalassohaline and athalassohaline environments and require over 100–150 g/L NaCl for growth and structural *** hypersaline environments vary in salt concentration,chemical composition and pH,and occur in climates ranging from tropical to polar and even ***,their resident haloarchaeal species vary enormously,as do their individual population compositions and community *** diverse halophilic archaeal strains are precious resources for theoretical and applied research but assessing their taxonomic and metabolic novelty and diversity in natural environments has been technically difficult up until *** DNA-based high-throughput sequencing technology has now matured sufficiently to allow inexpensive recovery of massive amounts of sequence data,revealing the distribution and community composition of halophilic archaea in different hypersaline *** cultivation of haloarchaea is slow and tedious,and only recovers a fraction of the natural diversity,it is the conventional means of describing new species,and provides strains for detailed *** of the end of May 2020,the class Halobacteria contains 71 genera and 275 species,49.8%of which were first isolated from the marine salt environment and 50.2%from the inland salt environment,indicating that both thalassohaline and athalassohaline environments contain diverse halophilic ***,there remain taxa that have not yet been isolated in pure culture,such as the nanohaloarchaea,which are widespread in the salt environment and may be one of the hot spots in the field of halophilic archaea research in the *** this review,we focus on the cultivation strategies that have been used to isolate extremely halophilic archaea and point out some of the pitfalls and challenges.

关键词： Halobacteria Growth Culture Cultivation Large-scale isolation Medium formulation

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Broadband Frequency Comb for Calibration of Astronomical Spectrographs

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Journal of Applied Mathematics and Physics 2016年第2期4卷 202-205页

作者： Pu Zou Tilo Steinmetz Armin Falkenburger Yuanjie Wu Lingtong Fu Michael Mei Ronald Holzwarth Menlo Systems GmbH Am Klopferspitz 19a 82152 Martinsried Germany

We present our state-of-the-art version of a frequency comb for calibration of astronomical spectrographs. The mode spacing of the frequency comb can be designed to match the resolution of a spectrograph. Combined with its excellent accuracy and stability, the spectral coverage of more than 70% of the whole visible spectrum range makes the frequency comb an ideal calibration source. In addition, the new version introduces the automatic start-up function that brings convenience to the astronomers.

关键词： Frequency Combs Astronomical Spectrograph Calibration

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DeCASA in AgriVerse: Parallel Agriculture for Smart Villages in Metaverses

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IEEE/CAA Journal of Automatica Sinica 2022年第12期9卷 2055-2062页

作者： Xiujuan Wang Mengzhen Kang Hequan Sun Philippe de Reffye Fei-Yue Wang The State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing 100190 Beijing Engineering Research Center of Intelligent Systems and Technology Beijing 100190China School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100190 Department of Chromosome Biology Max Planck Institute for Plant Breeding ResearchBeijing 100049China Faculty of Biology LMU MunichGroßhaderner Str.2Planegg-Martinsried D-82152Germany AMAP Univ MontpellierCIRADCNRSINRAEIRDMontpellier F-34398France IEEE Macao Institute of Systems Engineering Macao University of Science and TechnologyMacao 999078China

The demand for food is tremendously increasing with the growth of the world population,which necessitates the development of sustainable agriculture under the impact of various factors,such as climate *** fulfill this challenge,we are developing Metaverses for agriculture,referred to as Agri Verse,under our Decentralized Complex Adaptive Systems in Agriculture(De CASA)project,which is a digital world of smart villages created alongside the development of Decentralized Sciences(De Sci)and Decentralized Autonomous Organizations(DAO)for Cyber-Physical-Social Systems(CPSSs).Additionally,we provide the architectures,operating modes and major applications of De CASA in *** achieving sustainable agriculture,a foundation model based on ACP theory and federated intelligence is ***,we discuss the challenges and opportunities.

关键词： Parallel Agriculture Management and Control AgriVerse Agriculture CPSS ACP DAO-Based Platform Precision Agriculture

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The Membrane-Associated Sec1/Munc18 KEULE is Required for Phragmoplast Microtubule Reorganization During Cytokinesis in Arabidopsis

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Molecular Plant 2016年第4期9卷 528-540页

作者： Alexander Steiner Lin Muller Katarzyna Rybak Vera Vodermaier Eva Facher Martha Thellmann Raksha Ravikumar Gerhard Wanner Marie-Theres Hauser Farhah F. Assaad Botany Department School of Life Sciences Technische Universitat Munchen Emil-Ramann-Street 4 85354 Freising Germany Department Biologie I Ludwig-Maximillians Universitat 82152 Planegg-Martinsried Germany Department of Applied Genetics and Cell Biology University of Natural Resources and Life Sciences 1190 Vienna Austria

Cytokinesis, the partitioning of the cytoplasm following nuclear division, requires extensive coordination between membrane trafficking and cytoskeletal dynamics. In plants, the onset of cytokinesis is characterized by the assembly of a bipolar microtubule array, the phragmoplast, and of a transient membrane compartment, the cell plate. Little is known about the coordination between membrane deposition at the cell plate and the dynamics of phragmoplast microtubules. In this study, we monitor the localization dynamics of microtubule and membrane markers throughout cytokinesis. Our spatiotemporal resolution is consistent with the general view that microtubule dynamics drive membrane movements. Nonetheless, we provide evidence for active sorting at the cell plate and show that this is, at least in part, mediated by the TRAPPII tethering complex. We also characterize phragmoplast microtubule organization and cell plate formation in a suite of cytokinesis-defective mutants. Of four mutant lines with defects in phragmoplast microtubule organization, only morl microtubule-associated mutants exhibited aberrant cell plates. Conversely, the mutants with the strongest impairment in phragmoplast microtubule reorganization are keule alleles, which have a primary defect in membrane fusion. Our findings identify the SEC1/Munc18 protein KEULE as a central regulatory node in the coordination of membrane and microtubule dynamics during plant cytokinesis.

关键词： cytokinesis cell plate phragmoplast microtubule KEULE KNOLLE PLEIADE/MAP65-3

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Update on Chloroplast Research： New Tools, New Topics, and New Trends

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Molecular Plant 2011年第1期4卷 1-16页

作者： Ute Armbruster Paolo Pesaresi Mathias Pribil Alexander Hertle Dario Leister Lehrstuhl for Molekularbiologie der Pflanzen (Botanik) Department Biologie I Ludwig-Maximilians-Universitat M6nchen Groβhaderner Str. D-82152 Planegg-martinsried Germany b Dipartimento di Scienze Biomolecolari e Biotecnologie Universita degli studi di Milano 1-20133 Milano Italy

Chloroplasts, the green differentiation form of plastids, are the sites of photosynthesis and other important plant functions. Genetic and genomic technologies have greatly boosted the rate of discovery and functional character- ization of chloroplast proteins during the past decade. Indeed, data obtained using high-throughput methodologies, in particular proteomics and transcriptomics, are now routinely used to assign functions to chloroplast proteins. Our knowl- edge of many chloroplast processes, notably photosynthesis and photorespiration, has reached such an advanced state that biotechnological approaches to crop improvement now seem feasible. Meanwhile, efforts to identify the entire com- plement of chloroplast proteins and their interactions are progressing rapidly, making the organelle a prime target for systems biology research in plants.

关键词： Chloroplast biology genetics genomics molecular biology proteomics transcriptome analysis

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Spatial proteomics in three-dimensional intact specimens

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四川生理科学杂志 2022年第12期44卷 2202-2202页

作者： Harsharan Singh Bhatia Insititute for Tissue Engineering and Regenerative Medicine (iTERM) Helmholtz Zentrum München 85764 Neuherberg Germany Institute for Stroke and Dementia Research Klinikum der Universität München Ludwig-Maximilians University Munich 81377 Munich Germany Institute of Anatomy University of Leipzig 04109 Leipzig Germany Center for Translational Cancer Research (TranslaTUM) of the TUM 81675 Munich Germany Institute for Diabetes and Obesity Helmholz Zentrum München 85764 Neuherberg Germany Department for Proteomics and Signal Transduction Max Planck Institute of Biochemistry 82152 Martinsried Germany

Spatial molecular profiling of complex tissues is essential to investigate cellular function in physiological and pathological ***,methods for molecular analysis of large biological specimens imaged in 3D are ***,we present DISCO-MS,a technology that combines whole-organ/whole-organism clearing and imaging,deep-learning-based image analysis,robotic tissue extraction,and ultra-high-sensitivity mass spectrometry.

关键词： Spatial combine analysis

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iPlant Systems Biology (iPSB): An International Network Hub in the Plant Community

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Molecular Plant 2019年第6期12卷 727-730页

作者： Pascal Falter-Braun Siobhan Brady Rodrigo A.Gutierrez Gloria M.Coruzzi Gabriel Krouk Institute of Network Biology (INET) Helmholtz Zentrum Munchen (HMGU) 85764 Munchen-Neuherberg Germany Microbe-Host Interactions Faculty of Biology. Ludwig-Maximilians-University (LMU) Munich 82152 Planegg-Martinsried Germany Department of Plant Biology and the Genome Center University of California Davis CA 95616 USA Departamento de Genetica Molecular y Microbiologia FONDAP Center for Genome Regulation Millennium Institute for Integrative Biology Pontificia Universidad Catolica de Chile Santiago 8331150 Chile Center for Genomics and Systems Biology Department of Biology New York University New York NY 10003 USA B&PMP Univ Montpellier CNRS INRA SupAgro Montpellier France

sequenced genome of a multicellular organism (Arabidopsis Genome, 2000) completed just after those of the nematode Caenorhabditis elegans (C. elegans Sequencing Consortium, 1998) and the fruit fly Drosophila melanogaster (Adams et al., 2000). Availability of a full whole-genome sequence for the reference plant opened to plant biologists what is commonly called the post-genomic era.

关键词： Systems Biology International Network Hub Plant Community

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A Small Multifunctional Pentatricopeptide Repeat Protein in the Chloroplast of Chlamydomonas reinhardtii

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Molecular Plant 2015年第3期8卷 412-426页

作者： Abdullah Jala Christian Schwarz Christian Schmitz-Linneweber Olivier Vallon Jorg Nickelsen Alexandra-Viola Bohne Molecular Plant Sciences Ludwig-Maximillians-University Grosshaderner Straβe 2-4 82152 Planegg-Martinsried Germany Molecular Genetics Institute of Biology Humboldt University of Berlin 10115 Berlin Germany UMR7141 CNRS/Université Pierre et Marie Curie Institut de Biologie Physico-Chimique 13 Rue Pierre et Marie Curie 75005 Paris France

Organellar biogenesis is mainly regulated by nucleus-encoded factors, which act on various steps of gene expression including RNA editing, processing, splicing, stabilization, and translation initiation. Among these regulatory factors, pentatricopeptide repeat （PPR） proteins form the largest family of RNA binding proteins, with hundreds of members in flowering plants. In striking contrast, the genome of the unicellular green alga Chlamydomonas reinhardtii encodes only 14 such proteins. In this study, we analyzed PPR7, the smallest and most highly expressed PPR protein in C. reinhardtii. Green fluorescent protein-based localization and gel-filtration analysis revealed that PPR7 forms a part of a high-molecular-weight ribonu- cleoprotein complex in the chloroplast stroma. RIP-chip analysis of PPRT-bound RNAs demonstrated that the protein associates with a diverse set of chloroplast transcripts in vivo, i.e. rrnS, psbH, rpoC2, rbcL, atpA, cemA-atpH, tscA, and atpl-psaJ. Furthermore, the investigation of PPR7 RNAi strains revealed that deple- tion of PPR7 results in a light-sensitive phenotype, accompanied by altered levels of its target RNAs that are compatible with the defects in their maturation or stabilization. PPR7 is thus an unusual type of small multi- functional PPR protein, which interacts, probably in conjunction with other RNA binding proteins, with numerous target RNAs to promote a variety of post-transcriptional events.

关键词： pentatricopeptide repeat protein chloroplast gene expression RNA binding protein RNA maturation,RNA stabilization RIP-chip

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Brain and immune system - a complex relation

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Acta Pharmacologica Sinica 1999年第5期 75-75页

作者： Hartmut WEKERLE D-82152 martinsried Germany Max-Planck-Institute of Neurobiology

The interactions between central nervous system (CNS) and immune system are manifold and diverse. First, neuronal function is known to actively modulate immune reactivity, either directly by acting on T- or B- lymphoc... 详细信息

关键词： CNS Brain and immune system a complex relation

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Thioredoxins Play a Crucial Role in Dynamic Acclimation of Photosynthesis in Fluctuating Light

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Molecular Plant 2017年第1期10卷 168-182页

作者： Ina Thormahlen Arkadius Zupok Josephin Rescher Jochen Leger Stefan Weissenberger Julia Groysman Anne Orwat Gilles Chatel-lnnocenti Emmanuelle Issakidis-Bourguet Ute Armbruster Peter Geigenberger Department Biologie I Ludwig-Maximilians-Universitat MQnchen Grosshaderner StraSe 2-4 82152 Martinsried Germany Max-Planck-lnstitut fur Molekulare Pflanzenphysiologie Department 3 Am Muhlenberg 1 14476 Potsdam-Golm Germany Institute of Plant Sciences Paris Saclay (IPS2) UMR 9213/UMR1403 Universite Paris Sud CNRS INRA Universit~ d'Evry Universite Paris Diderot Sorbonne Paris Cite Batiment 630 91405 Orsay France

Sunlight represents the energy source for photosynthesis and plant growth. When growing in the field, plant photosynthesis has to manage strong fluctuations in light intensities. Regulation based on the thio- redoxin （Trx） system is believed to ensure light-responsive control of photosynthetic reactions in the chlo- roplast. However, direct evidence for a role of this system in regulating dynamic acclimation of photosyn- thesis in fluctuating conditions is largely lacking. In this report we show that the ferredoxin-dependent Trxs ml and m2 as well as the NADPH-dependent NTRC are both indispensable for photosynthetic acclimation in fluctuating light intensities. Arabidopsis mutants with combined deficiency in Trxs ml and m2 show wild- type growth and photosynthesis under constant light condition, while photosynthetic parameters are strongly modified in rapidly alternating high and low light. Two independent trxmlm2 mutants show lower photosynthetic efficiency in high light, but surprisingly significantly higher photosynthetic efficiency in low light. Our data suggest that a main target of Trx ml and m2 is the NADP-malate dehydrogenase involved in export of excess reductive power from the chloroplast. The decreased photosynthetic efficiency in the high-light peaks may thus be explained by a reduced capacity of the trxm lm2 mutants in the rapid light acti-vation of this enzyme. In the ntrc mutant, dynamic responses of non-photochemical quenching of excita- tion energy and plastoquinone reduction state both were strongly attenuated in fluctuating light intensities, leading to a massive decrease in PSII quantum efficiency and a specific decrease in plant growth under these conditions. This is likely due to the decreased ability of the ntrc mutant to control the stromal NADP（H） redox poise. Taken together, our results indicate that NTRC is indispensable in ensuring the full range of dynamic responses of photosynthesis to optimize photosynthesis and maintain growth in fluc

关键词： arabidopsis chloroplast light signalling NTRC redox regulation thioredoxin

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