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Review

A Review of Environment Effects on Nitrate Accumulation in Leafy Vegetables Grown in Controlled Environments

1
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
2
School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottingham NG25 0QF, UK
3
Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
4
Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
*
Author to whom correspondence should be addressed.
Foods 2020, 9(6), 732; https://doi.org/10.3390/foods9060732
Received: 26 April 2020 / Revised: 24 May 2020 / Accepted: 26 May 2020 / Published: 3 June 2020
Excessive accumulation of nitrates in vegetables is a common issue that poses a potential threat to human health. The absorption, translocation, and assimilation of nitrates in vegetables are tightly regulated by the interaction of internal cues (expression of related genes and enzyme activities) and external environmental factors. In addition to global food security, food nutritional quality is recognized as being of strategic importance by most governments and other agencies. Therefore, the identification and development of sustainable, innovative, and inexpensive approaches for increasing vegetable production and concomitantly reducing nitrate concentration are extremely important. Under controlled environmental conditions, optimal fertilizer/nutrient element management and environmental regulation play vital roles in producing vegetables with low nitrate content. In this review, we present some of the recent findings concerning the effects of environmental factors (e.g., light, temperature, and CO2) and fertilizer/nutrient solution management strategies on nitrate reduction in vegetables grown under controlled environments and discuss the possible molecular mechanisms. We also highlight several perspectives for future research to optimize the yield and nutrition quality of leafy vegetables grown in controlled environments. View Full-Text
Keywords: nitrate reduction; HY5; light; temperature; CO2; fertilizer strategy; water management nitrate reduction; HY5; light; temperature; CO2; fertilizer strategy; water management
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MDPI and ACS Style

Bian, Z.; Wang, Y.; Zhang, X.; Li, T.; Grundy, S.; Yang, Q.; Cheng, R. A Review of Environment Effects on Nitrate Accumulation in Leafy Vegetables Grown in Controlled Environments. Foods 2020, 9, 732. https://doi.org/10.3390/foods9060732

AMA Style

Bian Z, Wang Y, Zhang X, Li T, Grundy S, Yang Q, Cheng R. A Review of Environment Effects on Nitrate Accumulation in Leafy Vegetables Grown in Controlled Environments. Foods. 2020; 9(6):732. https://doi.org/10.3390/foods9060732

Chicago/Turabian Style

Bian, Zhonghua, Yu Wang, Xiaoyan Zhang, Tao Li, Steven Grundy, Qichang Yang, and Ruifeng Cheng. 2020. "A Review of Environment Effects on Nitrate Accumulation in Leafy Vegetables Grown in Controlled Environments" Foods 9, no. 6: 732. https://doi.org/10.3390/foods9060732

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