Emerging investigator series: differential effects of carbon nanotubes and graphene on the tomato rhizosphere microbiome

Abstract

Application of carbonaceous nanomaterials (CNMs) to the soil-plant system can affect plant physiology, with positive results ranging from enhanced seed germination and root system development to improved stress tolerance. The...

Rapid synthesis of MXenes and their potential risk to bacterial communities in the tomato rhizosphere

“…In this investigation, the amount of E-Ti 3 C 2 applied was determined by considering the potential for higher concentrations of MXene emissions and referring to studies on other 2D nanomaterials, such as MoS 2 and graphene. 41,42,62,63…”

“…The rhizosphere soil of the tomato plants was collected using a typical extraction process. 40 Tomato plants with and without E-Ti 3 C 2 MXene aqueous dispersion treatment were gently removed from the experimental pots using an aseptic technique. Loose bulk soil was removed from the plant roots by shaking and using a sterilized brush.…”

“…In this investigation, the amount of E-Ti 3 C 2 applied was determined by considering the potential for higher concentrations of MXene emissions and referring to studies on other 2D nanomaterials, such as MoS 2 and graphene. 41,42,62,63 The distribution of the obtained valid tags ranged from 33 561 to 57 329, with a length range from 203 bp to 519 bp, respectively (Table S3 †). The obtained OTU representative sequences were subsequently used for species taxonomic analysis.…”

“…High-throughput sequencing for genomics applications offers the opportunity to comprehensively examine the complex rhizosphere bacterial community and consequently reflect the variation in the soil environment, and this has been employed to evaluate the influence of various 2D nanomaterials on soil ecosystems. [40][41][42] However, the assessment of the behaviour of MXenes in the soil environment and their effects on associated organisms is still in its infancy. Therefore, a prospective investigation and determination of the potential risks of MXenes for the rhizosphere bacterial communities and thus further evaluation of possible consequences on the soil environment is an urgent requirement.…”