Species-specific cause of unchanged germination index in finger millet under CuNP exposure is unknown

Ascertain the biological and physicochemical reasons for the absence of a decrease in germination index in Eleusine corcana (finger millet) under exposure to copper nanoparticles (coated and uncoated) observed in vitro.

Background

The study measured germination parameters for two millet species exposed to copper nanoparticles (CuNPs), both coated with EDTA and uncoated. While Kodo millet showed a decrease in germination index, the authors did not observe a similar decrease in finger millet.

The authors explicitly state that the reason for the lack of change in finger millet's germination index is not known, indicating a species-specific response that remains unexplained. Understanding this difference is important for predicting plant-specific risks and designing mitigation strategies across diverse crops.

References

We did not observed this difference in Finger millet and the reason is not known to us at the moment.

— Capping of Nanoparticles: An Alternative Approach for Reducing Nanoparticle Toxicity in Plants  (2111.11355 - Bhatt et al., 2021) in Results & Discussion — Influence of nanoparticles on plant morphology