Carbon-based nanomaterials (CBN) such as carbon nanotubes (CNT) and graphene can protect plant cells against the harmful influence of abiotic stresses including drought and high salinity. To understand the biological mechanisms of such unique effects of CBNs we analyze the total gene expression in plants (rice, tomato) exposed to environmental stress in presence of CBNs (CNT, graphene) by NGS. The application of CNT or graphene resulted in full or partial restoration of expression of 458 and 1620 genes respectfully affected by water-deficit stress in rice. CBN treatment of NaCl-exposed tomato seedlings led to full or partial restoration of 1639 and 1391 salt-affected transcripts, respectively. The genes with fully or partially restored expression were described as stress-response genes and transcriptional factors (aquaporins, dehydrins, heat shock proteins/co-chaperons, NAC, WRKY) and were associated with key stress-signaling pathways (ABA-signaling, InsP3 signaling, MAPK signaling) in tested species.

Transcriptome responses to environmental stresses in crops exposed carbon nanotubes and graphene

ACS Fall 2021

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