Optimizing tobacco (Nicotiana tabacum L.) carbon metabolism regulation via topping: A study based on multi-omics

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2025-05-20 DOI:10.1016/j.indcrop.2025.121196

Nuo Shi , Meng Jia , Xuanquan Zhu , Qi Luo , Yuxiang Bai , Na Wang , Yu Du , Dingchun Zi , Limei Zhang , Tikun Zhang , Ge Wang , Peng Zhou

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引用次数: 0

Abstract

Topping eliminates the apical dominance of tobacco, alters the structure of tobacco leaves, and regulates the chemical composition of tobacco leaves. This study investigated how different topping periods affect photosynthetic carbon metabolism and related regulatory mechanisms in tobacco leaves through integrated physiological, proteomic, and metabolomic analyses. The results indicated that topping could effectively promote the broadening of leaves and the increase of leaf area, and significantly enhance the photosynthetic rate of leaves. Furthermore, topping promotes the Calvin cycle and sucrose metabolism in photosynthetic organisms, increasing starch content and reducing sucrose content. Overall, topping promotes photosynthetic carbon metabolism. These results not only contribute a theoretical basis for the response mechanism and physiological changes in tobacco as the target products under different topping periods but also providing theoretical support for optimizing tobacco planting practices.

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基于多组学的烟草（Nicotiana tabacum L.）顶部碳代谢调控优化研究

打顶消除了烟草的顶端优势，改变了烟叶的结构，调节了烟叶的化学成分。本研究通过综合生理、蛋白质组学和代谢组学分析，探讨了不同打顶期对烟草叶片光合碳代谢的影响及其调控机制。结果表明，打顶能有效促进叶片的展宽和叶面积的增加，并显著提高叶片的光合速率。此外，打顶促进了光合生物的卡尔文循环和蔗糖代谢，增加了淀粉含量，降低了蔗糖含量。总体而言，打顶促进光合碳代谢。这些结果不仅为研究不同打顶期烟草作为目标产品的响应机制和生理变化提供了理论依据，而且为优化烟草种植方式提供了理论支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.