Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 73, Issue 6, Pages 1789-1799Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erac014
Keywords
Essential metals; iron; micronutrients; nitrogen fixation; nutrition; photosynthesis; sustainability; zinc
Categories
Funding
- Independent Research Fund Denmark (DFF) [9041-00182B]
- HarvestPlus-HarvestZinc Project
- ANR (Agence Nationale de la Recherche) [17-CE200008, 19-CE13-0007]
- German Research Foundation (DFG) [CL 152/11]
- Federal Ministry of Education and Research (BMBF) [031B0840]
- Saclay Plant Sciences-SPS [ANR-17-EUR-0007]
- COST (European Cooperation in Science and Technology) [CA19116]
- EU [81769]
- [ERC-StG-2013-335284]
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This review highlights the importance of plant micronutrient homeostasis for healthy nutrition and sustainable agriculture. Providing sustainable and nutritious food for the growing population is a major challenge. Micronutrient deficiencies adversely affect crop production, nutritional value, and human health. The review calls for awareness on the relevance of micronutrients in crop production and quality, emphasizing the need for better micronutrient nutrition in human populations.
This review calls attention to the importance of plant micronutrient homeostasis for healthy nutrition of the growing human population, and for productive and sustainable agriculture, under increasing environmental constraints. The provision of sustainable, sufficient, and nutritious food to the growing population is a major challenge for agriculture and the plant research community. In this respect, the mineral micronutrient content of food crops deserves particular attention. Micronutrient deficiencies in cultivated soils and plants are a global problem that adversely affects crop production and plant nutritional value, as well as human health and well-being. In this review, we call for awareness of the importance and relevance of micronutrients in crop production and quality. We stress the need for better micronutrient nutrition in human populations, not only in developing but also in developed nations, and describe strategies to identify and characterize new varieties with high micronutrient content. Furthermore, we explain how adequate nutrition of plants with micronutrients impacts metabolic functions and the capacity of plants to express tolerance mechanisms against abiotic and biotic constraints. Finally, we provide a brief overview and a critical discussion on current knowledge, future challenges, and specific technological needs for research on plant micronutrient homeostasis. Research in this area is expected to foster the sustainable development of nutritious and healthy food crops for human consumption.
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