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2013, Número 2

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Biotecnol Apl 2013; 30 (2)


Promoción del crecimiento de plantas de Zea mays L. por Tsukamurella paurometabola cepa C-924

Marín M, Wong I, Mena J, Morán R, Pimentel E, Sánchez I, Basulto R, Moreira A

Idioma: Ingles.
Referencias bibliográficas: 30
Paginas: 105-110
Archivo PDF: 194.53 Kb.


RESUMEN

Las bacterias promotoras del crecimiento vegetal son colonizadoras de la rizosfera y producen sustancias que estimulan el crecimiento de las plantas y/o las protegen contra organismos patógenos. Tsukamurella paurometabola C-924 es una cepa con actividad nematicida aislada de suelo rizosférico en una plantación de banana en Camagüey, Cuba. El objetivo de este trabajo fue determinar algunos de los caracteres promotores del crecimiento vegetal de T. paurometabola C-924 y evaluar el efecto de esta cepa en el crecimiento de Zea mays L. en ausencia de nematodos. Los resultados mostraron que T. paurometabola C-924 produce ácido indolacético, proteasas y quitinasas y solubiliza fosfato tricálcico. También mostró actividad antagónica contra los hongos fitopatógenos ensayados (Sarocladium oryzae, Alternaria longipes, Pestalotia palmarum and Pythium debaryanum) y estimuló el desarrollo de las plantas de Z. mays L. en condiciones de invernadero. T. paurometabola C-924 es potencialmente aplicable en el campo no solo como agente nematicida, sino también como promotor del crecimiento vegetal.


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