33 research outputs found
La renovaciĂłn de la palabra en el bicentenario de la Argentina : los colores de la mirada lingĂŒĂstica
El libro reĂșne trabajos en los que se exponen resultados de investigaciones presentadas por investigadores de Argentina, Chile, Brasil, España, Italia y Alemania en el XII Congreso de la Sociedad Argentina de LingĂŒĂstica (SAL), Bicentenario: la renovaciĂłn de la palabra, realizado en Mendoza, Argentina, entre el 6 y el 9 de abril de 2010. Las temĂĄticas abordadas en los 167 capĂtulos muestran las grandes lĂneas de investigaciĂłn que se desarrollan fundamentalmente en nuestro paĂs, pero tambiĂ©n en los otros paĂses mencionados arriba, y señalan ademĂĄs las ĂĄreas que reciĂ©n se inician, con poca tradiciĂłn en nuestro paĂs y que deberĂan fomentarse. Los trabajos aquĂ publicados se enmarcan dentro de las siguientes disciplinas y/o campos de investigaciĂłn: FonologĂa, Sintaxis, SemĂĄntica y PragmĂĄtica, LingĂŒĂstica Cognitiva, AnĂĄlisis del Discurso, PsicolingĂŒĂstica, AdquisiciĂłn de la Lengua, SociolingĂŒĂstica y DialectologĂa, DidĂĄctica de la lengua, LingĂŒĂstica Aplicada, LingĂŒĂstica Computacional, Historia de la Lengua y la LingĂŒĂstica, Lenguas AborĂgenes, FilosofĂa del Lenguaje, LexicologĂa y TerminologĂa
Properties of the rhizobacteria used in this study.
<p>NDâ=âNot determined.</p>1<p>â=âDescribed in Reference <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0088094#pone.0088094-delosSantosVillalobos1" target="_blank">[37]</a>;</p>2<p>â=âDescribed in reference <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0088094#pone.0088094-JimnezDelgadillo1" target="_blank">[91]</a>;</p>3<p>â=âDescribed in Reference <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0088094#pone.0088094-delosSantosVillalobos2" target="_blank">[92]</a>.</p
Growth promoting effect of PGPR inoculation on grain amaranth plants maintained in a low-fertility soil.
<p>The effect on different growth parameters were determined in <i>A. cruentus</i> plants grown in a low fertility soil and inoculated with two strains of <i>Burkholderia</i> (<i>B. ambifaria</i> Mex5 and <i>B. caribensis</i> XV). The parameters measured 7 weeks after inoculation were the following: <b>A</b>) plant height and stem diameter; <b>B</b>) leaf area; <b>C</b> and <b>D</b>) total biomass in fresh and dry weight basis, respectively, and <b>F</b> and <b>G</b>) total leaf, stem and root biomass in a FW and DW basis, respectively. Differences in plant height and leaf area between controls and plants inoculated with <i>B. caribensis XV</i> or <i>B. ambifaria</i> Mex5 are shown in (<b>E</b>). The effect on total nitrogen levels in leaves, stems and roots produced in plants inoculated with <i>B. caribensis</i> XV is shown in (<b>H</b>). Mean values ± SE are presented. Asterisks over the bars and lines represent statistically different values at <i>P</i>â€0.05. Experiments were performed twice, and representative results are shown.</p
Real-time PCR analysis of gene expression in different tissues of PGPR-inoculated <i>A. cruentus</i> plants.
<p>The expression levels of a battery of genes involved in C and N metabolism and transport were measured in roots (<b>A</b>), and leaves (<b>B</b>), of <i>A. cruentus</i> plants inoculated with <i>Burkholderia caribensis</i> XV. The relative expression levels were determined by qPCR at 3, 5 and 7 weeks after seed inoculation, using the 2<sup>âÎÎCt</sup> method, as described in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0088094#pone.0088094-Livak1" target="_blank">[94]</a>. The bars represent mean values ± SE. Dashed lines indicate upper and lower limits beyond which genes were considered to be up- and down-regulated, respectively. Experiments were performed thrice, and results from a representative experiment are shown.</p
Time-course changes in non-structural carbohydrate levels in different tissues of PGPR-inoculated <i>A. cruentus</i> plants.
1<p>â=âBurkholderia caribensis XV and B. ambifaria Mex5;</p><p>NDâ=âNot determined;</p>*<p>â=âSignificant difference with controls at <i>P</i><0.05.</p
Effect on production parameters measured in <i>A. cruentus</i> plants inoculated with different PGPR.
<p>(<b>A</b>) Seed yield, (<b>B</b>) harvest index and (<b>C</b>) weight of 100 seeds were determined in <i>A. cruentus</i> plants inoculated with two strains of <i>Burkholderia</i> (<i>B. ambifaria</i> Mex5 or <i>B. caribensis</i> XV) and grown to maturity in a rich substrate. Inoculated plants ± chemical fertilization (CF) were compared with un-inoculated plants ± CF. Mean values ± SE are presented. Different letters over the bars represent statistically different values at <i>P</i>â€0.05. The results of a representative experiment that was performed in duplicate are shown.</p
PGPR positively affect growth and nitrogen content of grain amaranth plants.
<p>The effect on the total biomass of leaves, stems and roots, (<b>A</b>) and (<b>B</b>), and on foliar nitrogen, (<b>C</b>) and (<b>D</b>), was measured 8 weeks after inoculation with three strains of <i>Burkholderia</i> (<i>B. cepacia</i> XXVI, <i>B. ambifaria</i> Mex5 and <i>B. caribensis</i> XV) in <i>Amaranthus hypochondriacus</i> and <i>A. cruentus</i> grown in a rich substrate, with (+CF) or without (âCF) chemical fertilization. Mean values ± SE are presented. Different letters over the bars and lines represent statistically different values at <i>P</i>â€0.05. Experiments were performed twice, and representative results are shown.</p
PGPR positively affect growth of grain amaranth plants.
<p>The effect of PGPR on different growth parameters, produced 8 weeks after inoculation with three strains of <i>Burkholderia</i> (<i>B. cepacia</i> XXVI, <i>B. ambifaria</i> Mex5 and <i>B. caribensis</i> XV), was determined in (<b>A</b>) and (<b>B</b>) <i>Amaranthus hypochondriacus</i> and (<b>C</b>) and (<b>D</b>) <i>A. cruentus</i> plants grown in a rich substrate, with (+CF) or without (âCF) chemical fertilization. Parameters measured were: total biomass, leaf area, plant height and stem diameter. Mean values ± SE are presented. Different letters over the bars and lines represent statistically different values at <i>P</i>â€0.05. Experiments were performed twice, and representative results are shown.</p
Time-course effect on different growth parameters produced in PGPR-inoculated amaranth plants.
<p><i>A. cruentus</i> plants grown in a rich substrate were inoculated with two strains of <i>Burkholderia</i> (<i>B. ambifaria</i> Mex5 and <i>B. caribensis</i> XV) and growth-related parameters were measured at 3, 5 and 7 weeks after inoculation. These were (<b>A</b>) plant height and stem diameter; (<b>B</b>) leaf area; (<b>C</b>) and (<b>D</b>) total biomass in fresh and dry weight basis and (<b>F</b>) total leaf, stem and root biomass in a FW basis and (<b>G</b>) total foliar Nitrogen levels. Differences in plant height and leaf area produced between controls and plants inoculated with <i>B. caribensis XV</i> are shown in (<b>E</b>). Mean values ± SE are presented. Asterisks over the bars and lines represent statistically different values at <i>P</i>â€0.05. The results presented were obtained from a typical experiment that was repeated three times.</p
Phylogenetic tree including the AhERF-VII of <i>A</i>. <i>hypochondriacus</i> together with all the <i>Arabidopsis thaliana</i> ERF proteins.
<p>Also shown are the highly homologous GbERF1 and GbERF2 proteins from <i>Gossipum barbadense</i>, and the GhERF protein from <i>G</i>. <i>hirsutum</i>. The phylogenetic tree was constructed using the neighbor joining method with amino acid sequence data. It was drawn using the TreeView program, based on alignments obtained using MUSCLE software. The bootstrap values shown are in percent.</p