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Functional traits shape size-dependent growth and mortality rates of dry forest tree species

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Journal of Plant Ecology 2017年第6期10卷 895-906页

作者： Jamir a.prado-Junior Ivan Schiavini Vagner S.Vale Diego Raymundo Sergio F.Lopes Lourens Poorter Biology Institute Federal University of UberlandiaUberlandiaBrazil Forest Ecology and Forest Management Group Wageningen UniversityPO Box 476700 AA WageningenThe Netherlands Forestry Department State University of Goias-Ipameri CampusRoad GO-330 Km 24175780-000 IpameriBrazil Biological Sciences Institute Federal University of Juiz de Fora 36036-900Juiz de ForaBrazil Biology Department State University of ParaibaBaraunas street 58429-500Campina GrandeBrazil

Aims Functional traits have emerged as an important tool to evaluate plant ***,the environmental conditions and ecological pressures that plants face change with their size,and the relationship between traits and plant performance should therefore be size-dependent,which has rarely been *** Here,we evaluated over a broad range of tree sizes the interspe-cific relationship between tree growth and mortality and eight func-tional stem,leaf and seed *** did so across 59 tree species in Brazilian dry forests and evaluated whether the relationships found for wet forest types in the literature also hold for dry forests,where water rather than light might limit tree *** Findings We indeed found a strong size-dependent relationship between demographic rates and functional *** small sizes,when trees are in the shaded understory,species with functional trait values that enhance light capture or shade tolerance(*** maximum adult stature,taller heights,wider crowns,higher seed mass)have higher growth and/or lower mortality rates(MR).This relationship disappears at larger sizes when trees attain better light conditions in the *** adaptations play only a role at larger tree sizes;once trees are in the dry and exposed canopy,species with higher wood density(an indicator of cavitation resistance)have lower *** study shows that both drought and shade adaptations are important in this dry forest,and that the relationships between func-tional traits and plant performance changes with plant *** size should therefore explicitly be included as an axis of variation in functional analyses,to better understand the relationship between functional traits and demographic rates.

关键词： demographic rates leaf traits seed mass tree architecture wood density

Effect of overnight temperature on leaf photosynthesis in seedlings of Swietenia macrophylla King

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Journal of Forestry Research 2003年第2期14卷 130-134页

作者：张成军 Carlos Henrique B.de a.prado 祖元刚郭佳秋 Carlos Cesar Ronquim Leonnardo Lopes Ferreira 东北林业大学森林植物生态学教育部重点实验室 Laboratory of Plant Physiology Department of BotanyFederal University of Sao Carlos 哈尔滨医科大学第二附属医院 Laboratory of Plant Physiology Department of BotanyFederal University of SaoCarlos

After exposure of one-year old seedlings of Swietenia macrophylla to an overnight temperature (13 C, 19 C, 25 C, 31 C or 35 C), the leaf net photosynthetic rate (Pn) was researched through measuring photosynthetic light-response curves at 360 mmolmol-1 CO2, and photosynthetic CO2-response curves at light-saturated intensity (1500 mmolm-2 s-1). The optimal temperature for photosynthesis measured at 360 mmol穖ol-1 CO2 was from 25 C to 31 C, but which was from 31C to 35 C at saturating CO2 concentration. At temperature of below 25 C, the decline in Pn was mainly due to the drop in carboxylation efficiency (Ce), while as temperature was over 31 C, the reduction in Pn resulted from both decrease in Ce and increase in leaf respiration. The CO2-induced stimulation of photosynthesis was strongly inhibited at temperatures below 13 C. The results showed that, the leaf photosynthesis of tropical evergreen plants should not be accelerated at low temperature in winter season with elevated CO2 concentration in the future.

关键词： Apparent quantum yield Carboxylation efficiency CO2-induced stimulation Swietenia macrophylla King Leaf temperature

How nerve-sparing technique has been applied to radiotherapy？

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Asian Journal of Andrology 2016年第6期18卷 898-899页

作者： Kris prado Arnold I Chin Department of Urology UCLA Los Angeles CA 90095 USA Broad Stem Cell Research Center UCLA Los Angeles CA 90095 USA Jonsson Comprehensive Cancer Center UCLA Los Angeles CA 90095 USA

The introduction of nerve-sparing technique is one of the most significantadvances in the surgical treatment of prostate cancer and heralded a shift from a curing cancer at all-cost model to a curing cancer and preser... 详细信息

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Role of upper endoscopy in diagnosing opportunistic infections in human immunodeficiency virus-infected patients

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World Journal of Gastroenterology 2009年第9期15卷 1050-1056页

作者： Ana Luiza Werneck-Silva Ivete Bedin prado Casa da AIDS-Infectious Disease Division School of MedicineUniversity of So PauloRua Frei Caneca 255CEP:05403-000So PauloBrazil University of So Paulo Hospital das Clínicas da FMUSP Av. Ovídio Pires de Campos2256 andar CEP:05403-010So PauloBrazil

Highly active antiretroviral therapy (HAART) has dramatically decreased opportunistic infections (OIs) in human immunodef iciency virus (HIV)-infected patients. However,gastrointestinal disease continues to account for a high proportion of presenting symptoms in these patients. Gastrointestinal symptoms in treated patients who respond to therapy are more likely to the result of drug-induced complications than OI. Endoscopic evaluation of the gastrointestinal tract remains a cornerstone of diagnosis,especially in patients with advanced immunodeficiency,who are at risk for OI. The peripheral blood CD4 lymphocyte count helps to predict the risk of an OI,with the highest risk seen in HIV-infected patients with low CD4 count (< 200 cells/mm3). This review provides an update of the role of endoscopy in diagnosing OI in the upper gastrointestinal tract in HIV-infected patients in the era of HAART.

关键词： Human immunodeficiency virus Opportunistic infections Upper gastrointestinal tract Gastrointestinal endoscopy Highly active antiretroviral therapy

New partners for old friends: Plant SWI/SNF complexes

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Molecular Plant 2021年第6期14卷 870-872页

作者： Juan S.Ramirez-prado Moussa Benhamed Centre of Microbial and Plant Genetics KU Leuven3001 LeuvenBelgium Institute of Plant Sciences Paris-Saclay(IPS2) UniversitéParis-SaclayCNRSINRAEUniv EvryOrsay 91405France Institute of Plant Sciences Paris Saclay Universitéde ParisCNRSINRAEOrsay(IPS2)91405France Institut Universitaire de France(IUF) France

The physical accessibility of specific genomic regions is a chromatin property that regulates gene expression and allows the establishment of an appropriate transcriptional landscape in response to environmental and developmental *** eukaryotes,ATP-dependent chromatin remodeling complexes use the energy produced via ATP hydrolysis by an ATPase subunit to perform DNA *** complexes are classified into four subfamilies,based on the domain organization of their catalytic ATPases(Clapier et al.,2017).

关键词： complexes hydrolysis property

Three bona fide plant-specific SAGA subunits and their regulatory function

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Molecular Plant 2021年第7期14卷 1033-1035页

作者： J.S.Ramirez-prado M.Benhamed Centre of Microbial and Plant Genetics KU Leuven3001 LeuvenBelgium lnstitute of Plant Sciences Paris-Saclay(IPS2) Universite Paris-SaclayCNRSINRAEUniv EvryOrsay 91405France Institute of Plant Sciences Paris-Saclay Universite de ParisCNRSINRAEOrsay(IPS2)91405France lnstitut Universitaire de France(IUF) ParisFrance

Nucleosomal histone tails are subject to a vast repertoire of covalent modifications that alter the physical accessibility of their associated DNA,impacting gene ***,the acetylation of histones is associated with transcriptional activation,as it has been shown to reduce their affinity for DNA(Grant,2001).The dynamic changes on histone acetylation levels throughout development are the result of active acetylation and deacetylation processes,mediated by histone acetyltransferases(HATs)and deacetylases,respectively.

关键词： expression. SAGA transcriptional

Global evolution of Equidae and Gomphotheriidae from South America

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Integrative Zoology 2014年第4期9卷 434-443页

作者： JoséL.prado María T.ALBERDI INCUAPA CONICET-UNICENNational University of Central Buenos Aires ProvinceOlavarríaArgentina Department of Paleobiology Museo Nacional de Ciencias NaturalesCSICMadridSpain

The contemporary South American mammalian communities were determined by the emergence of the Isthmus of Panama and by the profound climatic oscillations during the *** and gomphotheres were 2 very conspicuous groups of immigrant mammals from North America that arrived in South America during the *** present study compiles updated data on the phylogeny,systematics and ecology of both groups in South *** horses in South America are represented by 2 genera,Hippidion and Equus,as are the gomphotheres,represented by Cuvieronius and *** genera of horses include small(Hippidion devillei,***,*** and ***)and large forms(Equus neogeus and ***),which dispersed into South America using 2 different *** possible model for this dispersion indicates that the small forms used the Andes corridor,while larger horses dispersed through the eastern route and through some coastal *** the case of gomphotheres,Cuvieronius and Stegomastodon reached South America in 2 independent dispersal events,and Cuvieronius dispersed across the Andean corridor,while large Stegomastodon spread along the eastern *** and gomphotheres present values ofδ^(13)C from woodlands to C4 grass*** present lower values ofδ^(13)C than Equus in the late Pleistocene,whereas the gomphotheres diverge from value ofδ^(18)O,reflecting that Cuvieronius inhabited the Andean corridor and Stegomastodon dispersed through eastern *** gomphothere and horse species recorded in South America became extinct around the time that humans arrived.

关键词： Equidae Gomphotheriidae Plio-Pleistocene South America

Effect of a cardiac telerehabilitation program during COVID-19 associated social isolation

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Sports Medicine and Health Science 2024年第3期6卷 273-278页

作者： Joao Paulo prado Giovane Galdino Institute of Motricity Sciences Federal University of AlfenasAlfenasMinas GeraisBrazil

This study aimed to compare the impact of a cardiac telerehabilitation(CTR)protocol aimed at patients with cardiovascular diseases(CVDs)during the period of coronavirus disease 2019(COVID-19)associated with social *** retrospective cohort study included 58 participants diagnosed with stable cardiovascular diseases(CVDs),which were divided into three groups:conventional cardiac rehabilitation(CCR)group(n=20),composed of patients undergoing conventional cardiac rehabilitation;cardiac telerehabilitation(CTR)group(n=18),composed of patients undergoing cardiac telerehabilitation and control group(n=20),composed of patients admitted for cardiac rehabilitation who had not started training *** results showed that body mass index was reduced(p=0.019)and quality of life was improved(e.g.,limitations due to physical aspects[p=0.021),vitality[p=0.045]and limitations due to emotional aspects[p=0.024])by CCR compared to *** outcomes were not improved by CTR(p>0.05).However,this strategy prevented clinical deterioration in the investigated *** CCR achieved a superior effect on clinical improvement and quality of life,CTR was relevant to stabilize the blood pressure and quality of life of patients with cardiovascular diseases during the period of COVID-19-associated social isolation.

关键词： COVID-19 Cardiac telerehabilitation Quality-of-life

Targeting of Pollen Tubes to Ovules Is Dependent on Nitric Oxide （NO） Signaling

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Molecular Plant 2008年第4期1卷 703-714页

作者： Ana Margarida.prado Renato Colaco Nuno Moreno Ana Catarina Silva Jose A. Feijo Instituto Gulbenkian de Ciencla Centro de Blologia do Desenvolvimento PT-2780-156 Oeiras Portugal Universidade de Lisboa Faculdade de Clencias Dept Biologia Vegetal Campo Grande Ed.C2. PT-1749-016 Lisboa Portugal

The guidance signals that drive pollen tube navigation inside the pistil and micropyle targeting are still, to a great extent, unknown. Previous studies in vitro showed that nitric oxide （NO） works as a negative chemotropic cue for pollen tube growth in lily （Lilium Iongiflorum）. Furthermore, Arabidopsis thaliana Atnosl mutant plants, which show de- fective NO production, have reduced fertility. Here, we focus in the role of NO in the process of pollen-pistil communication, using Arabidopsis in-vivo and lily semi-vivo assays. Cross-pollination between wild-type and Atnosl plants shows that the mutation affects the pistil tissues in a way that is compatible with abnormal pollen tube guidance. Moreover, DAF- 2DA staining for NO in kanadi floral mutants showed the presence of NO in an asymmetric restricted area around the micropyle. The pollen-pistil interaction transcriptome indicates a time-course-specific modulation of transcripts of AtNOS1 and two Nitrate Reductases （nrl and nr2）, which collectively are thought to trigger a putative NO signaling pathway. Semivivo assays with isolated ovules and lily pollen further showed that NO is necessary for micropyle targeting to occur. This evidence is supported by CPTIO treatment with subsequent formation of balloon tips in pollen tubes facing ovules. Activation of calcium influx in pollen tubes partially rescued normal pollen tube morphology, suggesting that this pathway is also dependent on Ca^2＋ signaling. A role of NO in modulating Ca^2＋ signaling was further substantiated by direct imaging the cytosolic free Ca^2＋ concentration during NO-induced re-orientation, where two peaks of Ca^2＋ occur--one during the slowdown/stop response, the second during re-orientation and growth resumption. Taken together, these results provide evidence for the participation of NO signaling events during pollen-pistil interaction. Of special relevance, NO seems to directly affect the targeting of pollen tubes to the ovule＇s micropyle by modu

关键词： pollen tubes NO fertilization guidance calcium signaling