SciELO - Scientific Electronic Library Online

 
vol.16 número4Arbuscular mycorrhizal fungal diversity in wheat agro-ecosystems in Southern Chile and effects of seed treatment with natural productsInfluence of salinity on transport of Nitrates and Potassium by means of the xylem sap content between roots and shoots in young tomato plants índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Journal of soil science and plant nutrition

versión On-line ISSN 0718-9516

Resumen

NIE, Zhaojun; HU, Chengxiao; TAN, Qiling  y  SUN, Xuecheng. Gene expression related to molybdenum enzyme biosynthesis in response to molybdenum deficiency in winter wheat. J. Soil Sci. Plant Nutr. [online]. 2016, vol.16, n.4, pp.979-990. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162016005000071.

Molybdenum (Mo) is an essential trace element for higher plants. Mo enzyme biosynthesis is regulated by several plant genes. A hydroponic trial was conducted to investigate the effect of Mo deficiency on the expression of genes that are related to Mo enzyme biosynthesis in winter wheat. The results showed that Mo deficiency decreased the activities of nitrate reductase (NR), sulphite oxidase (SO), aldehyde oxidase (AO) and xanthine dehydrogenase (XDH) in the leaves or roots of winter wheat by regulating the expression of NR, SO, AO and XDH genes. Mo deficiency induced the expression of TaCnx2 and TaCnx5, which might result in the accumulation of cyclic pyranopterin monophosphate (cPMP) and molybdopterin (MPT) in wheat. Mo deficiency significantly decreased TaCnx1 expression, which is expected to reduce molybdenum cofactor (Moco) formation. Moco shortage induced the expression of TaAba3 in winter wheat. The blockade of Moco biosynthesis under conditions of Mo deficiency might decrease the activities of Mo enzymes.

Palabras clave : Molybdenum deficiency; molybdenum enzyme biosynthesis; gene expression; winter wheat.

        · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons