Nanomaterials for enhancing photosynthesis: interaction with plant photosystems and scope of nanobionics in agriculture

Abstract

The complex process of photosynthesis requires precise arrangements of light harvesting molecules in the photosynthetic system. Artificial imitation of such reaction systems is difficult as they involve complex protein structures....

Comparative analysis of chemically and green synthesized titanium dioxide nanoparticles for the regulation of photosynthesis in Lactuca sativa L.

“…The NPs inhibited ATPase activity except for 10 mg L −1 g-TiO 2 NPs (up 14%), which directly down-regulated ATP production in the photochemical phase. Moreover, insufficient NADPH and ATP will prevent the process of carboxylation, reduction, and regeneration in the Calvin cycle, 33 because 3-phosphoglycerate (PGA) and glyceraldehyde-3-phosphate (GAP) as photosynthetic intermediates cannot be converted without catalysis of ATP and NADPH. Carboxylation is the first step for CO 2 to enter the plant, and this process is regulated by Rubisco, which catalyzes CO 2 into energy-rich metabolites.…”

“…2C) because the electron transport from Q A to Q B requires Fe catalysis, 32 and the electron transfer from the cytochrome b 6 f complex to photosystem I (PSI) is associated with Cu. 33 More information on the correlation between TiO 2 NPs and electron transfer will be further explored below. In addition, insufficient levels of Mn, an important metal cofactor for electron transfer in PSII, were also associated with decreased ΦPSII and ETR.…”

Nanoenabled Enhancement of Plant Tolerance to Heat and Drought Stress on Molecular Response

“… Potential risk of NMs in agricultural application. NMs in the environment are capable of forming compounds with complex environmental contaminants . There is still a lack of studies on their effects on plants.…”

“…NMs in the environment are capable of forming compounds with complex environmental contaminants. 175 There is still a lack of studies on their effects on However, the phytotoxicity induced by NMs has been widely reported. 176,177 NMs can impede crop growth, including roots and stems.…”

Fe–carbon nanofiber-modified Mo-MOF for the controlled release and translocation of micronutrients in plants

“…64 Furthermore, nanomaterials consisting of essential minerals/metals have been used for inducing plant growth and crop production. 65,66 In one of the most recent studies, Yue et al (2022) have shown that the foliar application of manganese ferrite (MnFe 2 O 4 ) nanomaterials on tomato plants significantly improves the early flowering and production of tomatoes. 67 The authors have also demonstrated that the potential effects of nanomaterials occurred because of an increase in chlorophyll content and ferredoxin, PsaA, and PsbA upregulation in leaves, which eventually triggered the photosynthesis efficiency of plants.…”