Silicon nanoparticles vs trace elements toxicity: Modus operandi and its omics bases

Area of Science:

• Environmental Science
• Plant Biology
• Nanotechnology

Background:

• Trace elements, often called heavy metals, cause phytotoxicity by disrupting plant enzymes, photosynthesis, and nutrient balance.
• Silicon nanoparticles (SiNPs) show potential in reducing the harmful effects of various essential and non-essential trace elements on plants.

Purpose of the Study:

• To review the mechanisms by which SiNPs ameliorate trace element toxicity in plants.
• To explore the impact of SiNPs on plant responses at the genomic, proteomic, and metabolomic levels.

Main Methods:

• Literature review focusing on SiNPs' effects on trace element uptake, transport, and plant defense mechanisms.
• Analysis of SiNPs' influence on gene expression related to plant anatomy and physiology.

Main Results:

• SiNPs act as a primary defense by limiting trace element absorption and translocation in plant roots.
• SiNPs bolster plant antioxidant systems against oxidative stress induced by trace elements.
• SiNPs modulate gene expression involved in cell wall composition, photosynthesis, and metal transport.

Conclusions:

• SiNPs offer a promising strategy to counteract trace element phytotoxicity.
• Further research into SiNPs' effects on plant metabolomic, proteomic, and genomic profiles is warranted for a comprehensive understanding.