Mathematical modeling of climate and fluoride effects on sugarcane photosynthesis with silicon nanoparticles

文献类型： 外文期刊

第一作者： Verma, Krishan K.

作者： Verma, Krishan K.;Song, Xiu-Peng;Huang, Hai-Rong;Xu, Lin;Wu, Jian-Ming;Zhang, Bao-Qing;Li, Yang-Rui;Verma, Chhedi Lal;Singh, Munna;Khan, Zafar Hayat

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关键词： Photosynthetic capacity; Bioengineering modeling; Metal tolerability; Fluoride; Sugarcane; Silicon nanoparticles

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.5； 五年影响因子：6.4 ）

ISSN： 0981-9428

年卷期： 2023 年 204 卷

页码：

收录情况： SCI

摘要： Fluoride (F-) stress is one of the major environmental pollutant, affecting plant growth, development and production, globally. Acquisition of eco-friendly F- stress reliever seems to be the major concern these days. Consequently, application of engineered nanomaterials (ENMs) has been increasing to improve agri-economy. However, the impact of silicon nanoparticles (Si NPs) on mitigation of F- stress has not been investigated yet. Thus, the present study was conducted to compare their protective roles against F- stress by improving diurnal photosynthetic efficiency of sugarcane plant leaves. An ability of sugarcane (Saccharum officinarum cv. GT44) plants to ameliorate F- toxicity assessed through soil culture medium. After an adaptive growth phase, 45 days old plants select to examine F- mitigative efficacy of silicon nanoparticles (SiNPs: 0, 100, 300 and 500 ppm) on sugarcane plants, irrigated by F- contaminated water (0, 100, 200 and 500 ppm). Our results strongly favour that SiNPs enhanced diurnally leaf photosynthetic gas exchange viz., photosynthesis (-1.0-29%), stomatal conductance (-3.0-90%), and transpiration rate (-0.5-43%), significantly, as revealed by increments in photochemical chlorophyll fluorescence efficiency of PS II linked with performance index and photosynthetic pigments during F- stress. To the best of our knowledge, this is the first investigation to explore the impact of SiNPs improving and/or maintaining the diurnal photosynthetic responses in sugarcane plants in response to Fstress. It may also precisely unlayer action of molecular mechanism(s) mediated by SiNPs, found essential for mitigation of F--toxicity to explore nano-phytoremediation approach for crop improvement and agri-economy as well.

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