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Genetics aspect of vitamin C (Ascorbic Acid) biosynthesis and signaling pathways in fruits and vegetables crops

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Abstract

Vitamin C, also known as ascorbic acid, is an essential nutrient that plays a critical role in many physiological processes in plants and animals. In humans, vitamin C is an antioxidant, reducing agent, and cofactor in diverse chemical processes. The established role of vitamin C as an antioxidant in plants is well recognized. It neutralizes reactive oxygen species (ROS) that can cause damage to cells. Also, it plays an important role in recycling other antioxidants, such as vitamin E, which helps maintain the overall balance of the plant's antioxidant system. However, unlike plants, humans cannot synthesize ascorbic acid or vitamin C in their bodies due to the absence of an enzyme called gulonolactone oxidase. This is why humans need to obtain vitamin C through their diet. Different fruits and vegetables contain varying levels of vitamin C. The biosynthesis of vitamin C in plants occurs primarily in the chloroplasts and the endoplasmic reticulum (ER). The biosynthesis of vitamin C is a complex process regulated by various factors such as light, temperature, and plant hormones. Recent research has identified several key genes that regulate vitamin C biosynthesis, including the GLDH and GLDH genes. The expression of these genes is known to be regulated by various factors such as light, temperature, and plant hormones. Recent studies highlight vitamin C's crucial role in regulating plant stress response pathways, encompassing drought, high salinity, and oxidative stress. The key enzymes in vitamin C biosynthesis are L-galactose dehydrogenase (GLDH) and L-galactono-1, 4-lactone dehydrogenase (GLDH). Genetic studies reveal key genes like GLDH and GLDH in Vitamin C biosynthesis, offering potential for crop improvement. Genetic variations influence nutritional content through their impact on vitamin C levels. Investigating the roles of genes in stress responses provides insights for developing resilient techniques in crop growth. Some fruits and vegetables, such as oranges, lemons, and grapefruits, along with strawberries and kiwi, are rich in vitamin C. Guava. Papaya provides a boost of vitamin C and dietary fiber. At the same time, red and yellow bell peppers, broccoli, pineapple, mangoes, and kale are additional sources of this essential nutrient, promoting overall health. In this review, we will discuss a brief history of Vitamin C and its signaling and biosynthesis pathway and summarize the regulation of its content in various fruits and vegetables.

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Acknowledgments

We would like to thank the Key Laboratory of kiwifruit resources development and utilization of Guizhou Universities (Qian Jiaoji [2022] 054), projects of Liupanshui Normal University (Biological Science, LPSSYYlzy2003, LPSSY2023XKTD09, Lpssyzxxm202304, LPSSYKYJJ201601) and the Science and Technology project of Liupanshui City (Grant #52020-2020-0906,).

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The datasets used and/or analysed during the current study available from the corresponding author on reasonable request.

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Rest assured, I have ensured that all data, materials, software applications, and custom code supporting the claims made in this article are in full compliance with field standards. It is important to note that I have taken into account the possibility of individual journal policies regarding research data sharing, considering the norms and expectations of our discipline.

Funding

This work was supported by the Key Laboratory of kiwifruit resources development and utilization of Guizhou Universities (Qian Jiaoji [2022] 054), projects of Liupanshui Normal University (Biological Science, LPSSYYlzy2003, LPSSY2023XKTD09, Lpssyzxxm202304, LPSSYKYJJ201601) and the Science and Technology project of Liupanshui City (Grant #52020-2020-0906,).

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AS carried out research work and wrote the initial draft of the manuscript. AS and MZH conducted the data analysis. MS, QA, MNK, MAJ, JT, RK, and SA planned and supervised the study and edited the final version of the manuscript. MS, MAM, SH, and IAS technically reviewed and finalized the draft. All authors reviewed the final version of the manuscript and approved it for publication.

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Correspondence to Shiming Han, Qurban Ali or Muhammad Shafiq.

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Sami, A., Han, S., Haider, M.Z. et al. Genetics aspect of vitamin C (Ascorbic Acid) biosynthesis and signaling pathways in fruits and vegetables crops. Funct Integr Genomics 24, 73 (2024). https://doi.org/10.1007/s10142-024-01352-9

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  • DOI: https://doi.org/10.1007/s10142-024-01352-9

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