Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling
Nanotechnology can improve crop yield and quality by improving seed germination and growth conditions. We chose multi walled carbon nanotubes (MWCNTs) and nano silica (nano-SiO<sub>2</sub>) for exploring the effects of different concentrations of MWCNTs and nano-SiO<sub>2</sub&g...
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MDPI AG
2024-12-01
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| Series: | Agronomy |
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| author | Mingquan Wang Guangyan Sun Guoliang Li Guanghui Hu Lixin Fu Shaoxin Hu Jianfei Yang Zhiguo Wang Wanrong Gu |
| author_facet | Mingquan Wang Guangyan Sun Guoliang Li Guanghui Hu Lixin Fu Shaoxin Hu Jianfei Yang Zhiguo Wang Wanrong Gu |
| author_sort | Mingquan Wang |
| collection | DOAJ |
| description | Nanotechnology can improve crop yield and quality by improving seed germination and growth conditions. We chose multi walled carbon nanotubes (MWCNTs) and nano silica (nano-SiO<sub>2</sub>) for exploring the effects of different concentrations of MWCNTs and nano-SiO<sub>2</sub> on key enzymes for germination and endogenous hormone level in maize. The results indicate that MWCNTs and nano-SiO<sub>2</sub> can promote seed germination characteristics, such as the germination potential, germination rate, germination index, storage material transport rate, radicle and germ biomass of maize seeds. Amounts of 800 mg·L<sup>−1</sup> MWCNTs and 1500 mg·L<sup>−1</sup> nano-SiO<sub>2</sub> showed a positive effect on germination index, and nano-SiO<sub>2</sub> was better than MWCNTs in promoting germination effects. Most importantly, MWCNTs and nano-SiO<sub>2</sub> can improve the activities of amylase in maize grain, cytochrome oxidase (COX) and alternating oxidase (AOX) in seed embryo and key enzymes of glycolysis, so as to accelerate the hydrolysis of carbohydrates such as starch, provide energy and material basis for seed germination, improve seed vitality and promote seed germination. MWCNTs and nano-SiO<sub>2</sub> can enhance the content of key hormones in promoting roots and leaves, including decreased content of abscisic acid (ABA) and increased contents of methyl jasmonate (MeJA), auxin (IAA), gibberellin (GA), and zeaxanthin (ZR), which result directly in achieving an available balance of MeJA/ABA, GA/ABA, ZR/ABA, and IAA/ABA ratios between different hormone contents, providing support for the growth development of maize kernels and seedlings. |
| format | Article |
| id | doaj-art-d2a068ed661e45bbb939b9035384e25e |
| institution | DOAJ |
| issn | 2073-4395 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Agronomy |
| spelling | doaj-art-d2a068ed661e45bbb939b9035384e25e2025-08-20T02:57:05ZengMDPI AGAgronomy2073-43952024-12-011412290810.3390/agronomy14122908Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize SeedlingMingquan Wang0Guangyan Sun1Guoliang Li2Guanghui Hu3Lixin Fu4Shaoxin Hu5Jianfei Yang6Zhiguo Wang7Wanrong Gu8Maize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaCollege of Agriculture, Northeast Agricultural University, Harbin 150030, ChinaMaize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaMaize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaMaize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaMaize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaMaize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaMaize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, ChinaCollege of Agriculture, Northeast Agricultural University, Harbin 150030, ChinaNanotechnology can improve crop yield and quality by improving seed germination and growth conditions. We chose multi walled carbon nanotubes (MWCNTs) and nano silica (nano-SiO<sub>2</sub>) for exploring the effects of different concentrations of MWCNTs and nano-SiO<sub>2</sub> on key enzymes for germination and endogenous hormone level in maize. The results indicate that MWCNTs and nano-SiO<sub>2</sub> can promote seed germination characteristics, such as the germination potential, germination rate, germination index, storage material transport rate, radicle and germ biomass of maize seeds. Amounts of 800 mg·L<sup>−1</sup> MWCNTs and 1500 mg·L<sup>−1</sup> nano-SiO<sub>2</sub> showed a positive effect on germination index, and nano-SiO<sub>2</sub> was better than MWCNTs in promoting germination effects. Most importantly, MWCNTs and nano-SiO<sub>2</sub> can improve the activities of amylase in maize grain, cytochrome oxidase (COX) and alternating oxidase (AOX) in seed embryo and key enzymes of glycolysis, so as to accelerate the hydrolysis of carbohydrates such as starch, provide energy and material basis for seed germination, improve seed vitality and promote seed germination. MWCNTs and nano-SiO<sub>2</sub> can enhance the content of key hormones in promoting roots and leaves, including decreased content of abscisic acid (ABA) and increased contents of methyl jasmonate (MeJA), auxin (IAA), gibberellin (GA), and zeaxanthin (ZR), which result directly in achieving an available balance of MeJA/ABA, GA/ABA, ZR/ABA, and IAA/ABA ratios between different hormone contents, providing support for the growth development of maize kernels and seedlings.https://www.mdpi.com/2073-4395/14/12/2908maizemulti walled carbon nanotubesnanoparticles SiO<sub>2</sub>seed germinationendogenous hormone level |
| spellingShingle | Mingquan Wang Guangyan Sun Guoliang Li Guanghui Hu Lixin Fu Shaoxin Hu Jianfei Yang Zhiguo Wang Wanrong Gu Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling Agronomy maize multi walled carbon nanotubes nanoparticles SiO<sub>2</sub> seed germination endogenous hormone level |
| title | Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling |
| title_full | Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling |
| title_fullStr | Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling |
| title_full_unstemmed | Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling |
| title_short | Effects of Multi Walled Carbon Nanotubes and Nano-SiO<sub>2</sub> on Key Enzymes for Seed Germination and Endogenous Hormone Level in Maize Seedling |
| title_sort | effects of multi walled carbon nanotubes and nano sio sub 2 sub on key enzymes for seed germination and endogenous hormone level in maize seedling |
| topic | maize multi walled carbon nanotubes nanoparticles SiO<sub>2</sub> seed germination endogenous hormone level |
| url | https://www.mdpi.com/2073-4395/14/12/2908 |
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