Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
Bijie Branch Company of Guizhou Tobacco Company, Guizhou, 551713, China.
Sci Rep. 2022 Sep 12;12(1):15317. doi: 10.1038/s41598-022-19428-6.
Soil organic matter (SOM) is of vital importance to soil health, and also plays a crucial role in the quality of the crops such as tobacco. However, the link between tobacco quality and SOM chemical compositions is still not well understood. To fill the information gap, we analyzed the quality of tobacco leaves and the corresponding SOM molecular compositions by electrospray ionization (ESI) coupled with Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS), that were collected from six different sites in Bijie, Guizhou Province, China. The tobacco quality variedin six sites based on their chemical compositions. SOM compounds had a remarked impact on the quality of tobacco leaves and a distinct difference in SOM composition between low-quality and high-quality tobacco leaves was observed as well. Specifically, 105 common molecular formulas were detected in three SOM compounds of high-quality tobacco, which were more than those in low-quality samples. Although amino sugar, proteins, lipids, tannins, and carbohydrates had a collective influence on the chemical composition of tobacco leaves, the effect contributed by amino sugar and tannins was more prominent. In summary, fully understanding the association between tobacco chemical composition and SOM compounds can provide new insight into the regulation of tobacco quality and the sustainable development of agriculture.
土壤有机质（SOM）对土壤健康至关重要，对烟草等作物的质量也起着关键作用。然而，烟草质量与 SOM 化学组成之间的联系仍不明确。为了填补信息空白，我们通过电喷雾电离（ESI）与傅里叶变换离子回旋共振质谱（FTICR-MS）相结合，分析了来自中国贵州省毕节市六个不同地点的烟草叶片质量和相应的 SOM 分子组成。根据化学成分，六个地点的烟草质量存在差异。SOM 化合物对烟草叶片质量有显著影响，高质量和低质量烟草叶片之间的 SOM 组成也存在明显差异。具体而言，在高质量烟草的三种 SOM 化合物中检测到 105 种常见分子公式，比低质量样品中的要多。尽管氨基酸糖、蛋白质、脂质、单宁和碳水化合物对烟草叶片的化学成分有共同影响，但氨基酸糖和单宁的影响更为显著。总之，充分了解烟草化学成分和 SOM 化合物之间的关系，可以为调节烟草质量和农业可持续发展提供新的思路。
