Root Silicon Treatment Modulates the Shoot Transcriptome in Brassica napus L. and in Particular Upregulates Genes Related to Ribosomes and Photosynthesis

摘要: While the benefit of silicon (Si) is often reported in cultivated plants, and particularly those experiencing stress conditions, underlying mechanisms are poorly described controversial [1]. For a long time mechanical role Si cell wall has been considered as main explanation for its beneficial effects alleviating plant stresses. Another assumption that low proportion (around 1%) taken up by plants might modulate some metabolic pathways. Investigating this concept, Haddad et al. [2] demonstrated roots Brassica napus modulation large range genes could explain an increased resistance to nitrogen (N) deficiency. However, since mainly associated with maintaining photosynthetic activity delay leaf senescence mature leaves under N- deficiency [3], aim present study was identify (using RNA sequencing approach) transcriptomic modifications shoot compartment +Si plants. Our results showed there were 296 differentially expressed (DEGs)) shoots treated (root supply 1.7 mM 7 days). Among these genes, 19 31 upregulated related ribosomes pathways, respectively. From results, can facilitate efficient reinforcement alleviate biotic abiotic stresses experienced discussed.