Mecanismos de la inmunidad vegetal inducida por Trichoderma: una perspectiva RNA-epigenética

Área de la Ciencia:

• Plant pathology; Molecular biology; Microbial ecology

Sus antecedentes:

• Root-associated microbes enhance plant systemic resistance cost-effectively.
• Trichoderma-plant interactions exemplify sustained induced resistance without high defense costs.
• Small RNAs (miRNAs, siRNAs, lncRNAs) and epigenetic modifications are implicated in plant immune priming.

Objetivo del estudio:

• To review and integrate recent advances in understanding Trichoderma-induced systemic immunity.
• To explore the combined roles of RNA-mediated regulation and epigenetic modifications in plant defense.
• To provide a mechanistic explanation for stable yet flexible plant immune states.

Principales métodos:

• Conceptual review synthesizing current research on plant-microbe interactions.
• Analysis of RNA-mediated regulatory networks (small RNAs, lncRNAs).
• Examination of epigenetic mechanisms in plant immune priming.

Principales resultados:

• Small RNAs establish immune priorities and shape defense responsiveness.
• Epigenetic modifications stabilize primed immune states, ensuring reversibility.
• An integrated RNA-epigenetic framework explains durable, low-cost plant immunity.

Conclusiones:

• Trichoderma-induced immunity relies on a continuum of RNA and epigenetic regulation.
• This integrated perspective clarifies how plants maintain inducible defenses without constitutive costs.
• Understanding these molecular layers is crucial for harnessing beneficial microbes for plant protection.