Contenido de prolina en Solanum lycopersicum pretratado con glicina betaina y sometido a estrés salino

Autores/as

  • Mercedes Chaman Medina Universidad Nacional de Trujillo
  • Roger Veneros Terrones Universidad Nacional de Trujillo
  • Edita Araujo Castillo Universidad Nacional de Trujillo
  • Aureliano Ramírez Cruz Universidad Nacional de Trujillo
  • Jose Hidalgo Rodríguez Universidad Nacional de Trujillo
  • S. Luis Alaya Universidad Nacional de Trujillo
  • Cynthia Ramos Otiniano Universidad Nacional de Trujillo

Resumen

Las plantas han desarrollado varios mecanismos protectores para contrarrestar el estrés salino, uno de ellos es la acumulación de solutos compatibles como prolina y glicina betaina. Sin embargo, algunos cultivos como el tomate no acumulan glicina betaina, ante esto surge la alternativa de la aplicación exógena de estos compuestos. En este trabajo, se propuso evaluar el contenido de prolina en relación al estado hídrico en plántulas de Solanum lycopersicum  var. Río Grande “tomate” pretratado con diferentes concentraciones de glicina betaina y cultivadas en diferentes niveles de salinidad.  Plántulas fueron tratadas con glicina betaina a concentraciones de 0, 1 y 10 mM, y luego sometidas a cloruro de sodio: 0, 100 y 200 mM agregada esta sal a la solución de riego. Después de 10 días de tratamiento se cuantificó prolina y contenido relativo de agua. El contenido de prolina aumentó con el grado de salinidad y la aplicación de Glicina betaina 1 mM produjo un aumento significativo en NaCl 100mM.

Palabras clave: prolina, glicina betaina, estrés salino, Solanum

Citas

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Publicado

2014-07-08

Cómo citar

Medina, M. C., Terrones, R. V., Castillo, E. A., Cruz, A. R., Rodríguez, J. H., Alaya, S. L., & Otiniano, C. R. (2014). Contenido de prolina en Solanum lycopersicum pretratado con glicina betaina y sometido a estrés salino. REBIOL, 34(1), 19-25. Recuperado a partir de https://revistas.unitru.edu.pe/index.php/facccbiol/article/view/584