¿Bacterias promotoras del crecimiento de plantas contribuyen a una mayor persistencia de las pasturas tropicales en déficit hídrico? - Una revisión
DOI:
https://doi.org/10.33448/rsd-v9i8.5756Palabras clave:
BPCP; Estrés hídrico; Resistencia al estrés hídrico; Sequía; Tolerancia al estrésResumen
El uso de bacterias promotoras del crecimiento de plantas (BPCP) en pasturas es una alternativa sostenible para aumentar la producción de forraje, además de ser una tecnología innovadora capaz de mitigar los efectos del déficit hídrico (DH) en las pasturas. Actualmente, el DH es uno de los principales estresores abióticos responsables de afectar negativamente la producción agrícola. El DH permanente o temporal, limita el crecimiento y el desarrollo de pastos forrajeros más que cualquier otro factor ambiental. Aunque los estudios destinados a mejorar la resistencia al DH y la eficiencia del uso del agua se han llevado a cabo durante muchos años, el mecanismo involucrado aún no está claro. Una mayor comprensión de las relaciones planta-agua y los mecanismos de tolerancia al DH pueden mejorar significativamente la productividad del pasto y la calidad ambiental. Aunque los mecanismos que permiten que las plantas se ajusten en respuesta al DH, sin embargo, dependiendo de la gravedad y la duración, estas plantas por sí solas no pueden sobrevivir al estrés. Por lo tanto, el uso de tecnologías como PGPB puede conferir tolerancia de plantas al DH, sin dañar su desarrollo y productividad. Hay informes que muestran efectos positivos de PGPB en pastos bajo DH. En esta revisión, se presenta una breve idea sobre las causas, los efectos y las respuestas de la inoculación de PGPB en pastos en DH.Citas
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Derechos de autor 2020 Divaney Mamédio, Renan Sanches, Sillas Mayron da Silva da Silva, Valdir Oliveira Rodrigues, João Vitor da Rosa Vicente, Artur Roque Domingues Barreiros, Ulysses Cecato
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