Enhanced RuBisCO activity and promoted dicotyledons growth with degradable carbon dots
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The ∼ 5 nm degradable carbon dots (CDs) were synthesized directly from carbon rod by a one-step electrochemical method at room temperature. The as-prepared CDs can effectively enhance the ribulose bisphosphate carboxylase oxygenase (RuBisCO) activity, and then promote the dicotyledons growth (soybean, tomato, eggplant and so on) and finally increase their yields. Here, we used Arabidopsis thaliana and Trifolium repens L. as model plants to systematically study the beneficial effects of CDs on plant growth. These include: (i) accelerating seed germination; (ii) enlarging root elongation; (iii) increasing metal ions absorption and delivery; (iv) improving enzymes activity; (v) enhancing the carbohydrate content; (vi) degradation into plant hormone analogues and CO2; and finally (vii) enhancing the grain production by about 20%.
Keywordscarbon dots bio-degradation photosynthesis plant life cycle improve growth
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This work is supported by the National MCF Energy R&D Program (No. 2018YFE0306105), the National Natural Science Foundation of China (Nos. 51725204, 51572179, 21771132, and 21471106), the Natural Science Foundation of Jiangsu Province (No. BK20161216), Collaborative Innovation Center of Suzhou Nano Science & Technology, the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), and the 111 Project.
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