<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2079-3480</journal-id>
<journal-title><![CDATA[Cuban Journal of Agricultural Science]]></journal-title>
<abbrev-journal-title><![CDATA[Cuban J. Agric. Sci.]]></abbrev-journal-title>
<issn>2079-3480</issn>
<publisher>
<publisher-name><![CDATA[Editorial del Instituto de Ciencia Animal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2079-34802019000400459</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Copper effect on photosynthetic performance, symbiotic efficiency and biosorption of rhizobia associated with Horse gram [Macrotyloma uniflorum (Lam.) Verdc.]]]></article-title>
<article-title xml:lang="es"><![CDATA[Efecto del cobre en el rendimiento fotosintético, la eficiencia simbiótica y la biosorción de rizobios asociados con el Gramo de caballo [Macrotyloma uniflorum (Lam.) Verdc.]]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Edulamudi]]></surname>
<given-names><![CDATA[Prabhavati]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zakkula]]></surname>
<given-names><![CDATA[Vishnuvardhan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rao Vanga]]></surname>
<given-names><![CDATA[Umamaheswara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mallaiah Konada]]></surname>
<given-names><![CDATA[Veera]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Acharya Nagarjuna University Department of Botany and Microbiology ]]></institution>
<addr-line><![CDATA[ Andhra Pradesh]]></addr-line>
<country>India</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>53</volume>
<numero>4</numero>
<fpage>459</fpage>
<lpage>486</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802019000400459&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802019000400459&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802019000400459&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The aim of the present study was to evaluate the ability of Copper (Cu) tolerance in rhizobia and enhancing the photosynthetic performance, symbiotic efficiency and biosorption potential in the rhizobia inoculated Horse gram [Macrotyloma uniflorum (Lam.) Verdc.] plants. Four rhizobial strains HGR-4, 6, 13, 25 grown under different concentrations of Copper (Cu) were inoculated individually to Horse gram plants. Among them, Horse gram plants inoculated with the strain HGR-4 have shown enhanced PN values up to 500 µg g-1 of Cu concentration. Nodulation was maximum upon inoculation with HGR-6 at 300 µg g-1 of Cu and inoculation with HGR-4, 13 and 25 at 100 µg g-1. The amount of leghaemoglobin was maximum in the Horse gram plants inoculated with the strain HGR-13 at 500 µg g-1 of Cu. Biosorption potential of the strain HGR-6 (GQ483458 Rhizobium sp., ATCC 2336) was determined by Atomic Absorption Spectroscopy (AAS). It has shown maximum biosorption of Cu both in nodules and also in soil samples. This study demonstrates that the Cu tolerant rhizobia i.e. HGR-4, 6, 13 and 25 enhanced the photosynthetic performance, pod formation, symbiotic efficiency and biosorption potential. Hence, Horse gram plants associated with rhizobia could be used effectively in phytoremediation of metal (Cu) contaminated soils.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo del presente estudio fue evaluar la capacidad de la tolerancia al cobre (Cu) en rizobios y mejorar el rendimiento fotosintético, la eficiencia simbiótica y el potencial de biosorción en rizobios inoculados en plantas de Gramo de caballo [Macrotyloma uniflorum (Lam.) Verdc.]. Cuatro cepas de rizobios HGR-4, 6, 13, 25 cultivadas en diferentes concentraciones de cobre (Cu) se inocularon individualmente en plantas de Gramo de caballo. Entre ellas, las plantas de Gramo de caballo inoculadas con la cepa HGR-4 mostraron valores de PN mejorados hasta 500 µg g-1 de concentración de Cu. La nodulación fue máxima tras la inoculación con HGR-6 a 300 µg g-1 de Cu e inoculación con HGR-4, 13 y 25 a 100 µg g-1. La cantidad de leghemoglobina fue máxima en las plantas de Gramo de caballo inoculadas con la cepa HGR-13 a 500 µg g-1 de Cu. El potencial de biosorción de la cepa HGR-6 (GQ483458 Rhizobium sp., ATCC 2336) se determinó mediante espectroscopía de absorción atómica (AA). Se demostró la máxima biosorción de Cu tanto en nódulos como en muestras de suelo. Este estudio demuestra que la rizobio tolerante a Cu, es decir, HGR-4, 6, 13 y 25, mejora el rendimiento fotosintético, la formación de vainas, la eficiencia simbiótica y el potencial de biosorción. Por lo tanto, las plantas de Gramo de caballo asociadas con rizobios podrían usarse eficazmente en la fitorremediación de suelos contaminados con metal (Cu).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Biosorption]]></kwd>
<kwd lng="en"><![CDATA[metal toxicity]]></kwd>
<kwd lng="en"><![CDATA[phytoremediation]]></kwd>
<kwd lng="en"><![CDATA[rhizobia]]></kwd>
<kwd lng="es"><![CDATA[Biosorción]]></kwd>
<kwd lng="es"><![CDATA[toxicidad metálica]]></kwd>
<kwd lng="es"><![CDATA[fitorremediación]]></kwd>
<kwd lng="es"><![CDATA[rizobios]]></kwd>
</kwd-group>
</article-meta>
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