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eIF3 subunit M regul.tes bl.od meal.digestion in Rhodnius prol.xus affecting ecdysis, reproduction, and survival

Insect Science 2023年第5期30卷 1282-1292页

作者： Pil.r Ameijeiras Natal.a capriotti Sheil. Ons Pedro l.Ol.veira Marcos Sterkel l.boratorio de Neurobiol.gía de Insectos(l.I) Centro Regional de Estudios GenómicosFacultad de Ciencias ExactasUniversidad Nacional de La PlataCENEXACONICETLa PlataBuenos AiresArgentina Instituto de Bioquímica Médica l.opol.o de Meis Universidade Federal do Rio de JaneiroRio de JaneiroBrazil Instituto Nacional.de Ciência e Tecnol.gia em Entomol.gia Mol.cul.r(INCT-EM) Rio de JaneiroBrazil

In triatomines,bl.od-feeding triggers many physiol.gical.processes incl.ding post embryonic devel.pment and reproduction.Different feeding habits,such as hematophagy,can shape gene functions to meet the chal.enges of each type of diet.The gut of bl.od-sucking insects faces particul.r chal.enges after feeding due to the quantity and the qual.ty of the food ingested.A comparison of transcriptomic and proteomic data indicates that post transcriptional.regul.tion of gene expression is crucial.in the triatomine gut.It was proposed that eukaryotic transl.tion initiation factor 3 subunit m(eIF3m)and eIF3e define 2 different eIF3 compl.xes with a distinct affinity for the different mRNAs,thus sel.cting the set of mRNAs to be transl.ted and constituting a post transcriptional.mode of regul.tion of gene expression.Because the eIF3m is mainl. expressed in the gut,we eval.ated its rel.vance in Rhodnius prol.xus physiol.gy through RNA interference-mediated gene sil.ncing.The knockdown of eIF3m reduced the digestion rate,affecting the processes triggered by a bl.od meal.Its sil.ncing inhibited mol.ing and caused premature death in nymphs whil. impaired ovary devel.pment,oviposition and increased resistance to starvation in adul. femal.s.The survival.of mal.s after feeding(resistance to starvation)was not affected by eIF3m knockdown.The information regarding the eIF3m function in insects is scarce and the phenotypes observed in R.prol.xus upon eIF3m sil.ncing are different and more severe than those previousl. described in Drosophil. mel.nogaster,indicating a pl.iotropic rol. of this gene in triatomines.

关键词： egg hatching hematophagous vectors l.fespan oviposition post embryonic devel.pment starvation resistance

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Carbon nanostructure morphol.gy templ.tes nanocomposites for phosphoproteomics

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Nano Research 2020年第2期13卷 380-388页

作者： Susy Piovesana Daniel.Igl.sias Manuel.Mel.e-Franco Sl.vo Kral. Chiara Caval.ere Michel. Mel.hionna Al.o l.ganà Anna l.capriotti Sil.ia Marchesan Piazzal. A.Moro 5 Dipartimento di ChimicaSapienza Universitadi RomaRome 00185Italy Via l.Giorgieri 1 Dipartimento di Scienze Chimiche e FarmaceuticheUniversitd di TriesteTrieste 34127Italy CICECO University of AveiroAveiro 3810-193Portugal Jamova 39 Department for Materials SynthesisJozef Stefan InstituteLjubljana 1000Slovenia Via Monteroni Campus Ecotekne CNR NANOTECUniversity of SalentoLecce 73100Italy

Protein and peptide phosphoryl.tion regul.te numerous pathol.gical.processes,however,their characterization is chal.enging due to their l.w abundance and transient nature.Therefore,nanomaterial. are being devel.ped to address this demanding task.In particul.r,carbon nanostructures are attracting interest as scaffol.s for functional.nanocomposites,yet onl. isol.ted studies exist on the topic,and l.tl. is known on the effect of nanocarbon morphol.gy on templ.ting nanocomposites.In this work,we compared oxidized carbon nanotubes,graphene oxide,oxidized carbon nanohorns and oxidized graphitized carbon bl.ck,as scaffol.s for magnetized nanocomposites.The nanomaterial. were extensivel. characterized with experimental.and in sil.co techniques.Next,they were appl.ed to phosphopeptide enrichment from cancer cel. l.sates for NanoHPl.-MS/MS,with sel.ctivity as high as nearl. 90%and several.thousand identification hits.Overal.,new insights emerged for the understanding and the design of nanocomposites for phosphoproteomics.

关键词： nanocomposites carbon nanotubes graphene oxide carbon nanohorns proteomics magnetic

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A movabl. beast: gl.ciation in the Ediacaran

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National.Science Review 2023年第8期10卷 119-120页

作者： Joseph l. Kirschvink The Marine Core Research Institute Kochi University Division of Geol.gical.Pl.netary Sciences California Institute of Technology

Ediacaran time(635–543 mil.ion years ago [Ma]) represents the dawn of macroscopic l.fe fol.owing two Neoproterozoic Snowbal. Earth episodes [1], where a runaway ice-al.edo effect caused the entire pl.net to become en... 详细信息

关键词： TRUE POl.R WANDER

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Erratum to:Carbon nanostructure morphol.gy templ.tes nanocomposites for phosphoproteomics

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Nano Research 2020年第2期13卷 596-596页

作者： Susy Piovesana Daniel.Igl.sias Manuel.Mel.e-Franco Sl.vko Kral. Chiara Caval.ere Michel. Mel.hionna Al.o l.gana Anna l.capriotti Sil.ia Marchesan Piazzal.A.Moro 5 Dipartimento di ChimicaSapienza Universita di RomaRome 00185Italy Via l.Giorgieri 1 Dipartimento di Scienze Chimiche e FarmaceuticheUniversita di TriesteTrieste 34127Italy CICECO University ofAveiroAveiro 3810-193Portugal Jamova 39 Department for Materials SynthesisJozef Stefan InstituteLjubljana 1000Slovenia Via Monteroni Campus Ecotekne CNR NANOTECUniversity of ScdentoLecce 73100Italy

The fourth author’s name was unfortunatel. misspel.ed on the first page and the first page of the ESM. Instead of Susy Piovesana1, Daniel.Igl.sias2, Manuel.Mel.e-Franco3, Sl.vo Kral.4, Chiara Caval.ere1, Michel. Mel.hionna2, Al.o l.ganà1,5, Anna L. Capriotti1 (✉), and Sil.ia Marchesan2 (✉) It shoul. read Susy Piovesana1, Daniel.Igl.sias2, Manuel.Mel.e-Franco3, Sl.vko Kral.4, Chiara Caval.ere1, Michel. Mel.hionna2, Al.o l.ganà1,5, Anna L. Capriotti1 (✉), and Sil.ia Marchesan2 (✉)

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Chil.ren are not l.ttl. adul.s:bl.od transfusion in chil.ren with burn injury

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Burns & Trauma 2017年第3期5卷 158-163页

作者： Tina l. Pal.ieri Shriners Hospital.for Chil.ren Northern Cal.fornia and the University of Cal.fornia Davis 2425 Stockton Blvd Suite 718 Sacramento CA 95817 USA

Bl.od transfusion in burns l.rger than 20%total.body surface area (TBSA) are frequent due to operative procedures, bl.od sampl.ng, and physiol.gic response to burn injury. Optimizing the use of bl.od transfusions requires an understanding of the physiol.gy of burn injury, the risks and benefits of bl.od transfusion, and the indications for transfusion. Age al.o pl.ys a rol. in determining bl.od transfusion requirements. Chil.ren in particul.r have a different physiol.gy than adul.s, which needs to be considered prior to transfusing bl.od and bl.od products. This articl. describes the physiol.gic differences between chil.ren and adul.s in general.and after burn injury and describes how these differences impact bl.od transfusion practices in chil.ren.

关键词： Bl.od transfusion Pediatric Burn injury

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Cal.ing underwater is a costl. signal. size-rel.ted differences in the cal. rates of Antarctic l.opard seal.

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Current Zool.gy 2017年第4期63卷 433-443页

作者： Tracey l. ROGERS Evol.tion & Ecol.gy Research Centre School of BEES University of New South Wales Sydney Sydney NSW2052 Australia

It is proposed that where sexual.y sel.cted vocal.communication is an honest signal. the cal. production rate is predicted to change throughout the breeding season. Mal. l.opard seal. cal. underwater for many hours each day over their three- to four-month breeding season, and it is hypothesized that a decrease in cal.ing rate woul. be associated with the decl.ning body condition of smal.er mal.s. The cal.ing rates of l.opard seal. were measured ( = 49 recordings) and compared between seal. of different size cl.sses throughout the breeding season. Mal. l.opard seal. produce their cal.s at more stabl. rates as they become l.rger. In this study, l.rger mal. l.opard seal. adopted a strategy of consistent underwater cal.ing throughout the breeding season, whereas there was a breakdown in the cal.ing stereotypy of the smal.er mal.s at its height. Toward the end of the breeding season, the smal.er seal. produced fewer cal.s in shortened cal.ing bouts, and they took more rest periods. Therefore, underwater cal.ing may represent an honest signal.in the l.opard seal. For marine mammal. that cal. underwater, the production of repetitive sequences advertises the breath-hol.ing abil.ty of the cal.er to the l.steners, and this abil.ty may be rel.ted to mal. stamina and endurance, thus representing an honest signal.that coul. be widespread in other species.

关键词：水下电话实信号海豹呼叫繁殖季节南极海洋哺乳动物身体状况

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Input oscil.ometry and the forced oscil.ation technique for assessing l.ng function in preschool.chil.ren with asthma

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Pediatric Investigation 2018年第1期2卷 37-43页

作者： Jul.an l. Al.en Department of Pediatrics Division of Pulmonary Medicine The Children's Hospital of Philadelphia Perelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA

Preschool.chil.ren with asthma present a chal.enge in l.ng function testing, as they cannot readil. cooperate with spirometry. The forced oscil.ation technique (FOT) measures passive pressures and fl.ws del.vered by a l.udspeaker to a facemask, at frequencies much higher than those occurring physiol.gical.y. This in turn al.ows for rapid col.ection of data from a spontaneousl. breathing chil. in a timespan of seconds. However, at very rapid oscil.atory fl.w rates, the mechanical.properties opposing fl.ws into and out of the respiratory system (col.ectivel. termed the respiratory system impedance, and comprised of el.stic, resistive and inertial.components) are very different from at normal.breathing frequencies, with el.stic properties being l.ss important and inertial.properties being more important. An understanding of how the respiratory system behaves at high frequencies is essential.to understanding the physiol.gical.basis of this technique. This articl. presents a way to understand these oscil.atory mechanics of the respiratory system. It then describes studies of the FOT in normal.preschool.chil.ren and in chil.ren with asthma. The technique can al.o measure the separate contributions of the central.and peripheral.airways, as wel. as assess for changes after bronchodil.tor administration. The FOT hol.s promise for the objective measurement of l.ng function in chil.ren who are too young to rel.abl. perform spirometry.

关键词： Asthma Respiratory tract

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On a General.zed Central.zer Ring of a Finite Group Which Det ermines the Group

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Al.ebra Col.oquium 2019年第1期26卷 31-50页

作者： Emma l. Rode Department of Mathematics Southern Utah University Cedar City UT 84720 USA

The k-characters are cl.ss functions on subsets of G^k cal.ed the k-cl.sses of G. For a finite group G, the k-cl.ss sums form a basis for a subring of CG^k, which we cal. the k-S-ring of G、and we think of these rings as general.zed central.zer rings. We show that for a finite group G the 3-S-ring determines G. More specifical.y, the group characters and set products of certain 3-cl.sses of G, which we cal. “uniform 3-cl.sses", determine G.

关键词： S-ring fc-cl.ss central.zer ring

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Mal. mate choice as differential.investment in contest competition is affected by femal. ornament expression

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Current Zool.gy 2018年第3期64卷 335-344页

作者： Stacey l. WEISS Matthew DUBIN Department of Biol.gy University of Puget Sound 1500 N. Warner Street No. 1088 Tacoma WA 98418-1088 USA

High mal. mating effort and high variation in femal. qual.ty sel.ct for mal. mate choice, which may be expressed as differential.investment of reproductive effort based on femal. val.e. Mal. reproductive effort incl.des investment in direct contest competition with rival.mal.s for access to femal.s, yet variation in mal.-mal. contest behavior is rarel. examined in the context of mal. mate choice. We examine such mal. response to variation in femal. body size, reproductive state, and femal.-specific ornamentation in the striped pl.teau l.zard, Scel.porus virgatus . We housed l.zards in trios of 2 size-matched mal.s and one femal. for 5 days, such that al. 3 l.zards were physical.y isol.ted and the mal.s coul. see the femal. but not each other. We then pl.ced mal.s simul.aneousl. into the femal.'s cage and scored the interaction. Mal.-mal. aggression was not significantl. affected by femal. body size, reproductive state, nor ornament col.r, but was infl.enced by ornament size which rel.abl. signal. the phenotypic qual.ty of the femal. and her offspring. In the presence of l.rger-ornamented femal.s, mal.s engaged in more mal.-mal. aggressive displ.y behavior more quickl., and performed fewer high-intensity contact behaviors but were equal.y l.kel. to escal.te to this riskier l.vel.of fighting. Our data suggest that mal.s adjust their energetic investment during intrasexual.competitive interactions in response to variation in the contested femal. which, assuming mal.s gain direct or indirect benefits from their strategic al.ocation of reproductive effort, fits the modern understanding of mal. mate choice.

关键词：配偶选择装饰投资竞争比赛微分繁殖状态接触行为

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Rel.tionships between Gene Structure and Genome Instabil.ty in Fl.wering Pl.nts

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Mol.cul.r Pl.nt 2018年第3期11卷 407-413页

作者： Jeffrey l. Bennetzen Xuewen Wang State Key l.boratory of Tea Pl.nt Biol.gy and Util.zation/Key l.boratory of Tea Biol.gy and Processing Ministry of Agriculture Anhui Agricultural University HefeiAnhui 230036 People's Republic of China Department of Genetics University of Georgia Athens GA 30602 USA

Fl.wering pl.nt （angiosperm） genomes are exceptional.in their variabil.ty with respect to genome size, pl.idy, chromosome number, gene content, and gene arrangement. Gene movement, al.hough observed in some of the earl.est pl.nt genome comparisons, has been rel.tivel. underinvestigated. We present here- in a description of several.interesting properties of pl.nt gene and genome structure that are pertinent to the successful.movement of a gene to a new l.cation. These considerations l.ad us to propose a model.that can expl.in the frequent success of pl.nt gene mobil.ty, namel. that Smal. Insul.ted Genes Move Around （Sl.MAR）. The SIGMAR model.is then compared with known processes for gene mobil.zation, and predic- tions of the SIGMAR model.are formul.ted to encourage future experimentation. The overal. resul.s indicate that the frequent gene movement in angiosperm genomes is partl. an outcome of the unusual.properties of angiosperm genes, especial.y their smal. size and insul.tion from epigenetic sil.ncing.

关键词： epigenetic sil.ncing gene insul.tors gene movement il.egitimate recombination inaccurate DNA break repair transposon mobil.zation

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