Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents
Tobacco-specific nitrosamines (TSNAs) are harmful carcinogens, with nitrate as a precursor of their formation. Nitrate content is considerably higher in burley tobacco than in flue-cured tobacco, but little has been reported on the differences between types of nitrate accumulation during development...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2017/4357456 |
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| author | Yafei Li Hongzhi Shi Huijuan Yang Jun Zhou Jing Wang Ruoshi Bai Dongya Xu |
| author_facet | Yafei Li Hongzhi Shi Huijuan Yang Jun Zhou Jing Wang Ruoshi Bai Dongya Xu |
| author_sort | Yafei Li |
| collection | DOAJ |
| description | Tobacco-specific nitrosamines (TSNAs) are harmful carcinogens, with nitrate as a precursor of their formation. Nitrate content is considerably higher in burley tobacco than in flue-cured tobacco, but little has been reported on the differences between types of nitrate accumulation during development. We explored nitrate accumulation prior to harvest and examined the effects of regulatory substances aimed at decreasing nitrate and TSNA accumulation. In growth experiments, nitrate accumulation in burley and flue-cured tobacco initially increased but then declined with the highest nitrate content observed during a fast-growth period. When treating tobacco crops with molybdenum (Mo) during fast growth, nitrate reductase activity in burley tobacco increased significantly, but the NO3-N content decreased. These treatments also yielded significant reductions in NO3-N and TSNA contents. Therefore, we suggest that treatment with Mo during the fast-growth period and a Mo-Gfo (Mo-glufosinate) combination at the maturity stage is an effective strategy for decreasing nitrate and TSNAs during cultivation. |
| format | Article |
| id | doaj-art-12f5b731ec894de19f68d9967ce6575a |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-12f5b731ec894de19f68d9967ce6575a2025-02-03T01:04:56ZengWileyJournal of Chemistry2090-90632090-90712017-01-01201710.1155/2017/43574564357456Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA ContentsYafei Li0Hongzhi Shi1Huijuan Yang2Jun Zhou3Jing Wang4Ruoshi Bai5Dongya Xu6Henan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou 450002, ChinaHenan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou 450002, ChinaHenan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou 450002, ChinaBeijing Cigarette Factory of Shanghai Tobacco Group, Beijing 100024, ChinaHenan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou 450002, ChinaBeijing Cigarette Factory of Shanghai Tobacco Group, Beijing 100024, ChinaHenan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou 450002, ChinaTobacco-specific nitrosamines (TSNAs) are harmful carcinogens, with nitrate as a precursor of their formation. Nitrate content is considerably higher in burley tobacco than in flue-cured tobacco, but little has been reported on the differences between types of nitrate accumulation during development. We explored nitrate accumulation prior to harvest and examined the effects of regulatory substances aimed at decreasing nitrate and TSNA accumulation. In growth experiments, nitrate accumulation in burley and flue-cured tobacco initially increased but then declined with the highest nitrate content observed during a fast-growth period. When treating tobacco crops with molybdenum (Mo) during fast growth, nitrate reductase activity in burley tobacco increased significantly, but the NO3-N content decreased. These treatments also yielded significant reductions in NO3-N and TSNA contents. Therefore, we suggest that treatment with Mo during the fast-growth period and a Mo-Gfo (Mo-glufosinate) combination at the maturity stage is an effective strategy for decreasing nitrate and TSNAs during cultivation.http://dx.doi.org/10.1155/2017/4357456 |
| spellingShingle | Yafei Li Hongzhi Shi Huijuan Yang Jun Zhou Jing Wang Ruoshi Bai Dongya Xu Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents Journal of Chemistry |
| title | Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents |
| title_full | Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents |
| title_fullStr | Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents |
| title_full_unstemmed | Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents |
| title_short | Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents |
| title_sort | difference between burley tobacco and flue cured tobacco in nitrate accumulation and chemical regulation of nitrate and tsna contents |
| url | http://dx.doi.org/10.1155/2017/4357456 |
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