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1405篇 您的检索式:作者名="BARROS J"
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1Species Concepts as Applied to the Whitefly Bemisia tabaci Systematics:How Many Species Are There?显示文摘The worldwide distribution and extensive genetic diversity of the whitefly,Bemisia tabaci,has long been recognized.However,the levels of separation within B.tabaci and the nomenclature of the various genetic groups have been a subject of debate.Recent phylogenetic analyses indicate that B.tabaci is a complex composed of 28 morphologically indistinguishable species.In this article,we first review the debate and difficulties associated with B.tabaci's taxonomy and systematics,and argue for the need to apply the biological species concept in order to elucidate B.tabaci's systematics.We summarize the accumulated genetic and behavioural data on reproductive incompatibilities evident amongst phylogenetic mtCOI groups of B.tabaci.Crossing studies have been conducted with 14 of the 28 putative species covering 54 reciprocal inter-species pairs,and observations on mating behaviour have been conducted for seven species pairs.Data from both crossing trials and behavioural observations indicate a consistent pattern of reproductive isolation among the putative species.We then discuss the technical and conceptual complexities associated with crossing experiments and behavioural observations designed to reveal reproductive incompatibility.Finally,we elaborate on a strategy for further clarifying the pattern of reproductive isolation between B.tabaci groups and propose future research directions on the systematics of this complex.LIU Shu-sheng John Colvin Paul J De Barro 2012Journal of Integrative Agriculture2012,11,2:76
2The Bemisia tabaci Species Complex:Questions to Guide Future Research显示文摘Since 2007 we have began to consider the relationships between the different members of the Bemisia tabaci species complex in a more structured and systematic way.Much of these relationships has been infered from considerations of a portion of the mitochondrial cytochrome oxidase one(mtCOI)gene.While this is a quite limited approach which would benefit from the consideration of a much greater diversity of genetic material,it is the only publically available data that spans the diversity of the species complex.Despite the limitations,the phylogenetic reconstruction that can be derived from this data is useful and can be used as a basis to frame questions and construct testable hypotheses that will form the basis for future research.This study uses the largest available mtCOI dataset,consisting of 383 unique mtCOI haplotypes that spans the full diversity of the B.tabaci species complex as we currently know it,to make a range of observations which are then used to develop questions as guide for future research.Paul J De Barro 2012Journal of Integrative Agriculture2012,11,2:5
3Gut-microbiome-brain axis:the crosstalk between the vagus nerve,alpha-synuclein and the brain in Parkinson's disease显示文摘This critical review of the literature shows that there is a close link between the microbiome,the gut,and the brain in Parkinson's disease.The vagus nerve,the main component of the parasympathetic nervous system,is involved in the regulation of immune response,digestion,heart rate,and control of mood.It can detect microbiota metabolites through its afferents,transferring this gut information to the central nervous system.Preclinical and clinical studies have shown the important role played by the gut microbiome and gut-related factors in disease development and progression,as well as treatment responses.These findings suggest that the gut microbiome may be a valuable target for new therapeutic strategies for Parkinson's disease.More studies are needed to better understand the underlying biology and how this axis can be modulated for the patient's benefit.Júlio César Claudino dos Santos Leandro Freitas Oliveira Felipe Micelli Noleto Camilla Teixeira Pinheiro Gusmão Gerly Anne de Castro Brito Glauce Socorro de Barros Viana 2023Neural Regeneration Research2023,18,12:2
4Efficacy of CFRP- based techniques for the flexural and shear strengthening of concrete beams 显示文摘Barros J A O Dias S J E Lima J 1 T 2007Cement and Concrete Composites2007,29,3:1
5Fertility Choice in a Model of Economic Growth 显示文摘Barro R J Becker G S 1989Econometric1989,2,:1
6Convergence Across States and Re- gions 显示文摘Barro R J Sala-I-Martin X 1991Brookings Papers on Economic Activity1991,,2:1
7Government spending in a simple model of en- dogenous growth显示文摘R J BARRO 1990Journal of Political Economy1990,98,10:1
8Rules, discretion and reputation in a model of monetary policy 显示文摘R-O'BERT J BARRO DAVID B GORDON 1983Journal of Monetary Eeonmics1983,,12:1
9The role of temperature, photoperiod, crowding and plant quality on the production of alate viviparous females of the bird cherry-oat aphid, Rhopalosiphum padi 显示文摘Barro P J 1992Ento mologia Experimentalis et Applicata1992,65,3:1
10Primary chemotherapy effect in sentinel node detection in breast cancer显示文摘Vigario A Sapienza M T Sampaio A P Piato J R Barros N Barros A 2003Clin Nucl Med2003,28,:1
11Government spending in a simple model of endogenous growth 显示文摘Barro Robert J 1990Journal of Political Economy1990,,5:1
12Technological Diffusion,Con-vergence ,and Growth 显示文摘Barro R J Sala-i-Martin Xavier 1997Journal of Economic Growth1997,2,1:1
13Discretion and reputation in a model of monetary policy显示文摘Barro R J Gordon D R 1983Journal of Monetary Economics1983,,12:1
14Availability of phosphorus in a Brazilian Oxisol cultivated with Eucalyptus after nine years as influenced by phosphorus-fertilizer source,rate and placement显示文摘DIAS L E FERNANDEZ J Q P BARROS N F 2001Communications in soil science and plant analysis2001,32,78:1
15Technological diffusion,convergence,and growth显示文摘BARRO R J SALA-I-MARTIN X 1997Journal of Economic Growth1997,,1:1
16Modeling Formalisms for Dynamic Structure Systems显示文摘Barros F J 1997ACM Transactions on Modeling and Computer Simulation (S1049-3301)1997,7,4:1
17A Reformulation of the Economic Theory of Fertility显示文摘Becker G S Barro R J 1988Quarterly Journal of Economics1988,103,:1
18Rules discretion and reputation in a model of monetary policy显示文摘Barro R J Gordon D B 1983Journal of Monetary Economics1983,,12:1
19Government Spending in a Simplemodels of En -Dogenous Growth 显示文摘BARRO J 1990Journal of Political Economy1990,98,5:1
20Public Finance in Models of Economic Growth 显示文摘Barro R J Xavier Sala-I-Martin 1992Review of Economic Studies1992,,59:1
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