While being the first exploration of early response to self-DNA inhibition at molecular level on C4 model plants, our study highlights the need for further investigation of the relationships between DNA exposure and stress signaling pathways by discussing potential applications for species-specific weed control in agriculture.Įxtracellular self-DNA inhibitory effect is a recently discovered phenomenon caused by the accumulation of fragmented DNA in decomposing plant litter, which significantly reduces conspecific seed germination and plantlet growth while barely affecting heterospecifics. Targeted gene expression analysis highlighted an early activation of genes involved in ROS degradation and management ( FSD2, ALDH22A1, CSD3, MPK17), as well as deactivation of scaffolding molecules acting as negative regulators of stress signaling pathways ( WD40-155). The results of a cross-factorial experiment on root elongation of seedlings exposed to self-DNA, congeneric DNA, and heterospecific DNA from Brassica napus and Salmon salar confirmed a significantly higher inhibition by self-DNA as compared to non-self-treatments, with the latter showing a magnitude of the effect consistent with the phylogenetic distance between the DNA source and the target species. pumila) and carried out a targeted real-time qPCR analysis under the hypothesis that self-DNA elicits molecular pathways that are responsive to abiotic stressors. weed congeneric species (respectively, Setaria italica and S. We investigated the species-specificity of self-DNA inhibition in cultivated vs. This self-DNA inhibition was repeatedly reported, but the underlying mechanisms are not fully clarified.
Por favor comuniquese con nosotros en si tiene alguna pregunta o necesita información adicional.The accumulation of fragmented extracellular DNA reduces conspecific seed germination and plantlet growth in a concentration-dependent manner. ** Las cancelaciones deben realizarse 24 horas antes del entrenamiento. ** Según las reglas del Registro de Nevada, no puede faltar más de 15 minutos del entrenamiento para recibir crédito completo por su participación. Se permite solo una inscripcion por cada persona. Las inscripciones deben recibirse no menos de 24 horas antes de la fecha del entrenamiento que desea tomar, al nombre de la persona que desea participar en el entrenamiento.
Selfcontrol application full#
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