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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Claims 8
Claim · model-written summary
Low temperatures caused oxidative damage to the root and bud tips of germinated maize seeds.
- Organ / stage
- root and bud tipse1
- Treatment
- low temperaturese1
- Outcome
- oxidative damage to the root and bud tipse1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results indicated that low temperatures caused oxidative damage to the root and bud tips of germinated maize seeds”
Claim · model-written summary
The GO-SCA coating increased peroxidase activity in the maize radicle at 5 °C compared to the commercial coating.
- Organ / stage
- radiclee2
- Treatment
- GO-SCA coatinge2
- Outcome
- peroxidase activitye2
- Direction
- increasede2
- Qualifier
- at 5 °Ce2
- Comparator
- commercial seed-coating agent (Con)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results indicated that low temperatures caused oxidative damage to the root and bud tips of germinated maize seeds”
e2“The GO-SCA coating increased peroxidase activity in the radicle at 5 °C”
e6“with a commercial seed-coating agent (Con) used as the control”
Claim · model-written summary
The GO-SCA coating limited accumulation of superoxide anions and hydrogen peroxide in the maize germ.
- Organ / stage
- germe3
- Treatment
- GO-SCA coatinge2
- Outcome
- accumulation of superoxide anions and hydrogen peroxidee3
- Direction
- limitede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results indicated that low temperatures caused oxidative damage to the root and bud tips of germinated maize seeds”
e2“The GO-SCA coating increased peroxidase activity in the radicle at 5 °C”
e3“limited the accumulation of superoxide anions and hydrogen peroxide in the germ”
Claim · model-written summary
The 66 g/L GO-SCA treatment (T3) lowered root malondialdehyde content in maize by 24.38% relative to the control group.
- Organ / stage
- roote4
- Treatment
- 66 g/L treatment (T3)e4
- Outcome
- root malondialdehyde contente4
- Direction
- lowere4
- Value
- 24.38%e4
- Comparator
- control groupe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results indicated that low temperatures caused oxidative damage to the root and bud tips of germinated maize seeds”
e4“the root malondialdehyde content in the 66 g/L treatment (T3) group was significantly lower-by 24.38%-compared to the control group”
Claim · model-written summary
GO-SCA within 44-66 g/L promoted maize germination and growth compared to the commercial coating.
- Treatment
- GO-SCAe5
- Outcome
- germination and growthe5
- Direction
- promotese5
- Qualifier
- Within the 44-66 g/L rangee5
- Comparator
- commercial seed-coating agent (Con)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“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”
e6“with a commercial seed-coating agent (Con) used as the control”
Claim · model-written summary
GO-SCA within 44-66 g/L alleviated low-temperature stress in maize seedlings compared to the commercial coating.
- Treatment
- GO-SCAe5
- Outcome
- low-temperature stresse5
- Direction
- alleviatese5
- Qualifier
- Within the 44-66 g/L rangee5
- Comparator
- commercial seed-coating agent (Con)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“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”
e6“with a commercial seed-coating agent (Con) used as the control”
Claim · model-written summary
GO-SCA reduces oxidative stress in maize by regulating antioxidant enzyme activity and antioxidant levels.
- Outcome
- oxidative stresse5
- Qualifier
- by regulating antioxidant enzyme activity and antioxidant levelse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“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”
Claim · model-written summary
GO-SCA reduced oxidative stress in maize seedlings compared to the commercial coating.
- Treatment
- GO-SCAe5
- Outcome
- oxidative stresse5
- Direction
- reducese5
- Comparator
- commercial seed-coating agent (Con)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“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”
e6“with a commercial seed-coating agent (Con) used as the control”
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