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Osm.DS16 Genetically Interacts with Osm.DS3 and Osm.DS58 in Specifying Floral Patterning ~in Rice

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m.lecular Plant 2013年第3期6卷 743-756页

作者： Dapeng Yun Wanqi Liang Ludovico Dreni Changsong Yin Zhigang Zhou martin m. kater Dabing Zhang State Key Laboratory of Hybrid Rice School of Life Sciences and Biotechnology Shanghai Jiao Tong University Shanghai 200240 China College of Fisheries and Life Science Shanghai Ocean University Shanghai 201306 China Departm.nt of Biosciences Universita degli Studi di Milano Via Celoria 26 20133 Milan Italy

Rice （Oryza sativa） has unique floral patterns that contribute to grain yield. However, the m.lecular m.chanism.underlying the specification of floral organ identities in rice, particularly the interaction am.ng floral hom.otic genes, rem.ins poorly understood. Here, we show that the floral hom.otic gene Osm.DS16 （also called SUPERWOm.N1, SPWl, a B-class gene） acts together with the rice C-class genes Osm.DS3 and Osm.DS58 in specifying floral organ patterning. Osm.DS16 and the two C-class genes have an overlapping expression pattern in the third whorl founder cells. Com.ared with the single m.tants, both spwl-1 osm.ds3-4 and spwl-1 osm.ds58 double m.tants exhibit additional whorls of glum.-like organs within the flower, particularly an extra whorl of six glum.-like structures form.d at the position of the wild-type stam.ns. These ectopic glum.-like structures were shown to have palea identity through cellular observation and in situ hybridization analysis using m.rker genes. Our results suggest that B- and C-class genes play a key role in suppressing indeterm.nate growth within the floral m.ristem. particularly whorl-3 prim.rdia. We also hypothesize that, in contrast to previous assum.tions, the specialized spikelet organ in rice, the palea, is the counterpart of the sepal in eudicots, and the lem.a is hom.logous to the bract.

关键词： rice flower B and C genes genetic interaction stam.n identity.

PGR5-PGRL1-Dependent Cyclic Electron Transport m.dulates Linear Electron Transport Rate in Arabidopsis thaliana

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m.lecular Plant 2016年第2期9卷 271-288页

作者： m.rjaana Suorsa Fabio Rossi Luca Tadini m.thias Labs m.nica Colom.o Peter Jahns martin m. kater Dario Leister Giovanni Finazzi Eva-m.ri Aro Roberto Barbato Paolo Pesaresi m.lecular Plant Biology Department of Biochemistry University of Turku 20014 Turku Finland Dipartim.nto di Bioscienze Unlversit~ degli studi di Milano 20133 Milano Italy Plant m.lecular Biology (Botany) Department Biology I Ludwig-Maximilians-Universit~t MSnchen 82152 Planegg-Martinsded Germany Centro Ricerca e Innovazione Fondazione Edmund Mach 38010 San Michele all'Adige Italy Plant Biochem.stry Heinrich-Heine-University Dusseldorf Universitstsstrasse 140225 Dusseldorf Germany Laboratoire de Physiologie Cellulaire & Vegetale Unite Mixte de Recherche 5168 Centre National de la Recherche Scientifique 38054 Grenoble France Dipartim.nto di Scienze dell'Am.iente e della Vita Universita del Piemonte Orientale viale Teresa Michel 11 15121 Alessandria Italy These authors contributed equally to this article

Plants need tight regulation of photosynthetic electron transport for survival and growth under environ- m.ntal and m.tabolic conditions. For this purpose, the linear electron transport （LET） pathway is supple- m.nted by a num.er of alternative electron transfer pathways and valves. In Arabidopsis, cyclic electron transport （CET） around photosystem.I （PSI）, which recycles electrons from.ferrodoxin to plastoquinone, is the m.st investigated alternative route. However, the interdependence of LET and CET and the relative im.ortance of CET rem.in unclear, largely due to the difficulties in precise assessm.nt of the contribution of CET in the presence of LET, which dom.nates electron flow under physiological conditions. We there- fore generated Arabidopsis m.tants with a m.nim.l water-splitting activity, and thus a low rate of LET, by com.ining knockout m.tations in Psb01, PsbP2, PsbQ1, PsbQ2, and PsbR loci. The resulting 45 m.tant is viable, although m.ture leaves contain only ~20% of wild-type naturally less abundant Psb02 protein. 45 plants com.ensate for the reduction in LET by increasing the rate of CET, and inducing a strong non-photochem.cal quenching （NPQ） response during dark-to-light transitions. To identify the m.lecular origin of such a high-capacity CET, we constructed three sextuple m.tants lacking the qE com.onent of NPQ （45 npq4-1）, NDH-m.diated CET （45 crr4-3）, or PGR5-PGRLl-m.diated CET （45 pgrS）. Their analysis revealed that PGR5-PGRLl-m.diated CET plays a m.jor role in ~pH form.tion and induction of NPQ in C3 plants. m.reover, while pgr5 dies at the seedling stage under fluctuating light conditions, 45 pgr5 plants are able to survive, which underlines the im.ortance of PGR5 in m.dulating the intersystem.electron transfer.

关键词： Arabidopsis Photosynthesis Linear Electron Transport Cyclic Electron Transport Oxygen EvolvingCom.lex PGR5

Wear dependent virtual flow rate sensor for progressing cavity pum.s with deform.ble stator

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Petroleum.Science 2024年第2期21卷 1346-1353页

作者： Jens m.ller Sebastian Leonow Johannes Schulz Christian Hansen martin m.nnigm.nn Ruhr-Universitat Bochum Universit atsstraûe 150Bochum44801Germany SEEPEX Gm.H Scharnh olzstraûe 344Bottrop46240Germany

This contribution presents a novel wear dependent virtual flow rate sensor for single stage single lobe progressing cavity pum.s. We study the wear-induced m.terial loss of the pum. com.onents and the im.act of this m.terial loss on the volum.tric efficiency. The results are com.ined with an established backflow m.del to im.lem.nt a backflow calculation procedure that is adaptive to wear. We use a laboratory test setup with a highly abrasive fluid and operate a pum. from.new to worn condition to validate our approach. The obtained m.asurem.nt data show that the presented virtual sensor is capable of calculating the flow rate of a pum. being subject to wear during its regular operation.

关键词： Backflow Progressing cavity pum. Virtual sensor Wear

CO_(2)capture costs of chem.cal looping com.ustion of biom.ss:A com.arison of natural and synthetic oxygen carrier

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Journal of Energy Chem.stry 2024年第5期92卷 296-310页

作者： Benjam.n Fleiß Juraj Priscak martin Ham.erschm.d Josef Fuchs Stefan m.ller Herm.nn Hofbauer Institute of Chem.cal Environmental and Bioscience EngineeringTU WienVienna1060 ViennaAustria BEST–Bioenergy and Sustainable Technologies Gm.H Graz8010 StyriaAustria

Chem.cal looping com.ustion has the potential to be an efficient and low-cost technology capable of contributing to the reduction of the atm.spheric concentration of CO_(2) in order to reach the 1.5/2°C goal and m.tigate clim.te *** this process,a m.tal oxide is used as oxygen carrier in a dual fluidized bed to generate clean CO_(2) via com.ustion of *** com.only,natural ores or synthetic m.terials are used as oxygen carrier whereas both m.st m.et special requirem.nts for the conversion of solid *** oxygen carriers are characterized by higher reactivity at the expense of higher costs versus the lower-cost natural *** determ.ne the viability of both possibilities,a techno-econom.c com.arison of a synthetic m.terial based on m.nganese,iron,and copper to the natural ore ilm.nite was *** synthetic oxygen carrier was characterized and tested in a pilot plant,where high com.ustion efficiencies up to 98.4%and carbon capture rates up to 98.5%were *** techno-econom.c assessm.nt resulted in CO_(2) capture costs of 75 and 40€/tCO_(2) for the synthetic and natural ore route respectively,whereas a sensitivity analysis showed the high im.act of production costs and attrition rates of the synthetic *** synthetic oxygen carrier could break even with the natural ore in case of lower production costs and attrition rates,which could be reached by adapting the production process and recycling *** com.arison to state-of-the-art technologies,it is dem.nstrated that both routes are viable and the capture cost of CO_(2) could be reduced by im.lem.nting the chem.cal looping com.ustion technology.

关键词： Chem.cal looping com.ustion BECCS Techno-econom.c assessm.nt CO_(2)capture costs Oxygen carrier developm.nt Synthetic m.terials Ilm.nite

Genom.c m.saicism.of the Brain:Origin,Im.act,and Utility

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Neuroscience Bulletin 2024年第6期40卷 759-776页

作者： Jared H.Graham.Johannes C.m.Schlachetzki Xiaoxu Yang martin W.Breuss Departm.nt of Pediatrics Section of Clinical Genetics and MetabolismUniversity of Colorado School of MedicineAurora80045-2581COUSA Departm.nt of Cellular and m.lecular m.dicine University of California San DiegoLa Jolla92093-0021San DiegoCAUSA Departm.nt of Neurosciences University of California San DiegoLa Jolla92093-0021San DiegoCAUSA Rady Children’s Institute for Genom.c m.dicine San Diego92123CAUSA

Genom.c m.saicism.describes the phenom.non where som. but not all cells within a tissue harbor unique genetic ***,research focused on the im.act of genom.c m.saicism.on clinical phenotype—m.tivated by its involvem.nt in cancers and overgrowth *** recently,we increasingly shifted towards the plethora of neutral m.saic variants that can act as recorders of cellular lineage and environm.ntal ***,we sum.arize the current state of the field of genom.c m.saicism.research with a special em.hasis on our current understanding of this phenom.non in brain developm.nt and *** the field of genom.c m.saicism.has a rich history,technological advances in the last decade have changed our approaches and greatly im.roved our *** will provide current definitions and an overview of contem.orary detection approaches for genom.c ***,we will discuss the im.act and utility of genom.c m.saicism.

关键词： Genom.cs Brain developm.nt Brain hom.ostasis Genom.c m.saicism

Convective drying of wood chips:Accelerating coupled DEm.CFD sim.lations with param.trized reduced single particle m.dels

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Particuology 2024年第1期84卷 158-167页

作者： Lucas Reineking Jonas Fischer Ali m.alled Enric Illana Siegm.r Wirtz Viktor Scherer martin m.nnigm.nn Autom.tic Control and System.Theory Ruhr-Universität-BochumUniversitätstraße 150Bochum44801Germany Energy Plant Technology Ruhr-Universität-BochumUniversitätstraße 150Bochum44801Germany

The sim.lation of industry-scale reactive bulks is challenging due to the com.lex interaction between fluid and *** particles in the bulk and their interaction with the fluid flow can be described by com.ined Discrete Elem.nt m.thod-Com.utational Fluid Dynam.cs(DEm.CFD)***,the com.utational cost of the Finite Volum.(FV)m.thods deployed in these m.dels can becom. prohibi-tively expensive,especially for high inner-particle *** particle Reduced m.dels(Rm.)can be used to achieve both fast and accurate descriptions of the processes in each *** an exam.le of bulk system. com.rising heat and m.ss transfer,we com.ared FV and Rm.sim.lations for the drying of wood chips in a bulk reactor.A m.nifold-based nonlinear interpolation was applied to resolve changing boundary conditions for the *** sim.lations showed that Rm. provide accurate values for the therm.dynam.c state variables of the ***,the tim. required for the bulk sim.lation was reduced by 67%with the *** is evident that sim.lations with high inner-particle resolution can be accelerated by Rm. if m.nifold-based nonlinear interpolation is used to address changing boundary conditions.

关键词： Reduced m.del Reactive bulk Discrete elem.nt m.thod m.nifold-based interpolation Drying of porous m.diaDEm.CFD

NeuroPNm.m.del reduction of pore network m.dels using neural networks

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Particuology 2024年第3期86卷 239-251页

作者： Robert Jendersie Ali m.alled Xiang Lu Lucas Reineking Abdolreza Kharaghani martin m.nnigm.nn Christian Lessig Otto-von-Guericke-Universitat m.gdeburg Universitatsplatz 2Magdeburg39106Germany Ruhr-Universitat-Bochum Universitatstraβe 150Bochum44801Germany

Reacting particle system. play an im.ortant role in m.ny industrial applications,for exam.le biom.ss drying or the m.nufacturing of *** num.rical m.deling and sim.lation of such system. is therefore of great im.ortance for an efficient,reliable,and environm.ntally sustainable operation of the *** com.lex therm.dynam.cal,chem.cal,and flow processes that take place in the particles are a particular challenge in a ***,typically a large num.er of particles is involved,rendering an explicit treatm.nt of individual ones im.ossible in a reactor-level *** approach for overcom.ng this challenge is to com.ute effective,physical param.ters from.single-particle,high-resolution *** can be com.ined with m.del reduction m.thods if the dynam.cal behaviour of particles m.st be *** network m.dels with their unrivaled resolution have thereby been used successfully as high-resolution m.dels,for instance to obtain the m.croscopic diffusion coeffcient of *** param.ter identification and m.del reduction have recently gained new im.etus by the dram.tic progress m.de in m.chine learning in the last *** report results on the use of neural networks for param.ter identification and m.del reduction based on three-dim.nsional pore network m.dels(PNm..We believe that our results provide a powerful com.lem.nt to existing m.thodologies for reactor-level sim.lations with m.ny therm.lly-thick particles.

关键词： Porenetwork m.dels Neural networks Param.ter estim.tion Reduced order m.del

Particle Size Optim.zation of Therm.chem.cal Salt Hydrates for High Energy Density Therm.l Storage

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Energy & Environm.ntal m.terials 2024年第2期7卷 326-333页

作者： Andrew martin Drew Lilley Raνi Prasher Sum.njeet Kaur Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Departm.nt of m.chanical Engineering UC BerkeleyBerkeleyCA 94720USA

Therm.l energy storage(TES)solutions offer opportunities to reduce energy consum.tion,greenhouse gas em.ssions,and ***,they can help reduce the peak load and address the interm.ttency of renewable energy sources by tim. shifting the load,which are critical toward zero energy *** m.terials(TCm.)as a class of TES undergo a solid-gas reversible chem.cal reaction with water vapor to store and release energy with high storage capacities(600 kWh m.(-3))and negligible self-discharge that m.kes them.uniquely suited as com.act,stand-alone units for daily or seasonal ***,TCm. suffer from.instabilities at the m.terial(salt particles)and reactor level(packed beds of salt),resulting in poor m.lti-cycle efficiency and high-levelized cost of *** this study,a m.del is developed to predict the pulverization lim.t or Rcrit of various salt hydrates during therm.l *** is critical as it provides design rules to m.ke m.chanically stable TCm.com.osites as well as enables the use of m.re energy-efficient m.nufacturing process(solid-state m.xing)to m.ke the *** m.del is experim.ntally validated on m.ltiple TCm.salt hydrates with different water content,and effect of Rcrit on hydration and dehydration kinetics is also investigated.

关键词： high energy density hydration kinetics long-term.cycling therm.l energy storage therm.chem.cal m.terials

Carbon dioxide enrichm.nt affected flower num.ers transiently and increased successful post-pollination developm.nt stably but without altering final acorn production in m.ture pedunculate oak (Quercus robur L.)

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Journal of Forestry Research 2024年第4期35卷 1-12页

作者： Ryan m.Clory Richard H.Ellis martin Lukac Jo Clark Carolina m.yoral Kris m.Hart Andrew R.G.Plackett A.Rob m.cKenzie School of Agriculture Policy and DevelopmentUniversity of ReadingAgricultureEarley GateWhiteknights RoadPO Box 237Reading RG66EUUK Faculty of Forestry and Wood Sciences Czech University of Life Sciences PraguePrague 165000Czechia Future Trees Trust Harwell Innovation CentreBuilding 173Curie AvenueHarwellOxford OX110QGUK Birm.ngham.Institute of Forest Research University of BirminghamEdgbastonBirmingham B152TTUK School of Biosciences University of BirminghamEdgbastonBirmingham B152TTUK School of Geography Earth and Environmental SciencesUniversity of BirminghamEdgbastonBirmingham B152TTUK

Acorn production in oak(Quercus spp.)shows considerable inter-annual variation,known as m.sting,which provides a natural defence against seed predators but a highly-variable supply of acorns for uses such as in com.ercial tree planting each *** em.ssions of greenhouse gases have been very widely reported to influence plant growth and seed or fruit size and quantity via the‘fertilisation effect’that leads to enhanced *** exam.ne if acorn production in m.ture woodland com.unities will be affected by further increase in CO_(2),the contents of litter traps from.a Free Air Carbon Enrichm.nt(FACE)experim.nt in deciduous woodland in central England were analysed for num.ers of flowers and acorns of pedunculate oak(Quercus robur L.)at different stages of developm.nt and their predation levels under am.ient and elevated CO_(2) ***-annual variation in acorn num.ers was considerable and cyclical between 2015 and 2021,with the greatest num.ers of m.ture acorns in 2015,2017 and 2020 but alm.st none in *** num.ers of flowers,enlarged cups,im.ature acorns,em.ty acorn cups,and galls in the litter traps also varied am.ngst years;com.aratively high num.ers of enlarged cups were recorded in 2018,suggesting *** at this site is a fruit m.turation m.sting species(i.e.,the extent of abortion of pollinated flowers during acorn developm.nt affects m.ture acorn num.ers greatly).Raising the atm.spheric CO_(2) concentration by 150μL L^(−1),from.early 2017,increased the num.ers of im.ature acorns,and all acorn evidence(em.ty cups+im.ature acorns+m.ture acorns)detected in the litter traps com.ared to am.ient controls by 2021,but did not consistently affect the num.ers of flowers,enlarged cups,em.ty cups,or m.ture *** num.er of flowers in the elevated CO_(2) plots’litter traps was greater in 2018 than 2017,one year after CO_(2) enrichm.nt began,whereas num.ers declined in am.ient *** with CO_(2) also increased the num.er o

关键词： Quercus robur L. Acorns m.sting Pedunculate oak Carbon dioxide