期刊
ENVIRONMENT INTERNATIONAL
卷 142, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.envint.2020.105831
关键词
Nanomaterials; Meta-analysis; Rhizosphere processes; Biological; Sustainable agriculture
资金
- National Natural Science Foundation of China [41820104009, 41530642, 41807378]
- USDA-NIFA Hatch program/UMass CAFE [MAS 00549]
- UMass Amherst Conti Faculty Fellowship
With the rising global population growth and limitation of traditional agricultural technology, global crop production could not provide enough nutrients to assure adequate intake for all people. Nano -fertilizers and nano -pesticides have 20 -30% higher efficacy than conventional products, which offer an effective solution to the above -mentioned problem. Rhizosphere is where plant roots, soil, and soil biota interact, and is the portal of nutrients transporting from soil into plants. The rhizosphere processes could modify the bioavailability of all nutrients and nanomaterials (NMs) before entering the food plants. However, to date, the overall rhizosphere processes regulating the behaviors and bioavailability of NMs to enhance the nutritional quality are still un- certain. In this review, a meta -analysis is conducted to quantitatively assess NMs-mediated changes in nutritional quality from food plants. Furthermore, the current knowledge and related mechanisms of the behavior and bioavailability of NMs driven by rhizosphere processes, e.g., root secretions, microbial and earthworm activities, are summarized. A series of rhizosphere processes can influence how NMs enter plants and change the biological responses, including signal transduction and nutrient absorption and transport. Moreover, future perspectives are presented to maximize the potentials of NMs applications for the enhancement of food crop production and global food security.
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