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  • Open Access


    High fluorine and other associated trace elements in waters from the south of the Pampean plain

    Espósito ME1, ME Sequeira2, JD Paoloni3, MC Blanco4, N Amiotti1

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 35-44, 2013, DOI:10.32604/phyton.2013.82.035

    Abstract We investigated the levels of F and its relationship with As, B and V in ground and surface waters of the southern Pampas, where cases of dental and skeletal fluorosis, and arsenic in hair and urine samples have been detected in the rural population. Eating vegetables and cereals grown in irrigated areas with excessive fluoride may increase the risk of fluorosis due to the addition of the extra F contributed from other sources such as drinking water. Moreover, if these elements exceed the tolerance of crops produce toxicity and, like salinity, they decrease the potential… More >

  • Open Access


    The use of sunflower transcription factors as biotechnological tools to improve yield and stress tolerance in crops

    Chan RL

    Phyton-International Journal of Experimental Botany, Vol.78, pp. 5-10, 2009, DOI:10.32604/phyton.2009.78.005

    Abstract Transcription factors (TFs) are proteins able to specifically recognize DNA sequences in the regulatory regions of their target genes. They bind these specific sequences, an event that leads to the activation or repression of whole signal transduction pathways. In plants about 1500 TFs were informatically identified; identification was mainly based in the presence of DNA-binding domains in the translated sequences. They were classified in families and subfamilies according to several features, including the conservation of the DNA binding domain, the genes structures and the functions they exert. Among transcription factors, several seem to be potential… More >

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