ArticleBMC plant biology2026
Graphene oxide enhances root growth and low-temperature tolerance in maize.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study investigates the effects of nanocarbon materials on maize seedling growth under low-temperature stress, aiming to provide innovative technical support for efficient maize production, enhance cold tolerance, and contribute to food security. Graphene oxide (GO), a novel carbon nanomaterial, was utilized to prepare a graphene oxide composite seed-coating agent (GO-SCA), which served as the focal point of this research. Four GO concentration gradients were established, with a commercial seed-coating agent (Con) used as the control. The study evaluated the effects of GO-SCA on the growth of Jade maize seedlings under low-temperature conditions.The results indicated that low temperatures caused oxidative damage to the root and bud tips of germinated maize seeds. The GO-SCA coating increased peroxidase activity in the radicle at 5 °C, limited the accumulation of superoxide anions and hydrogen peroxide in the germ. Notably, the root malondialdehyde content in the 66 g/L treatment (T3) group was significantly lower-by 24.38%-compared to the control group, indicating enhanced root resistance and reduced membrane damage in maize germ and radicle cells.Overall, Within the 44-66 g/L range, GO-SCA effectively alleviates low-temperature stress in maize seedlings, promotes germination and growth, and reduces oxidative stress by regulating antioxidant enzyme activity and antioxidant levels.
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