期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 184, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2019.109671
关键词
Manganese nanoparticle; Stress tolerance; Manganese superoxide dismutase; Photosystem II; Mechanistic responses
资金
- Environmental Protection Agency [DBI-1266377]
- USDA [2016-6702124985]
- NSF [EEC-1449500, CHE-0840525, DBI1429708]
- NSF ERC on Nanotechnology-Enabled Water Treatment [EEC-1449500]
- National Institutes on Minority Health and Health Disparities (NIMHD), a component of the National Institutes of Health (NIH) [2G12MD007592]
- ConTex program [1000001931]
- Academy of Applied Science/US Army Research Office, Research and Engineering Apprenticeship Program (REAP) at UTEP [W11NF-10-2-0076, 13-7]
- University of Texas System
Abiotic stress has become one of the most challenging problems for agriculture as the world population keeps increasing dramatically. Crop stress management using manganese (Mn) compounds has been recently employed to reduce the negative effects caused by drought, harsh temperature, and salinity. In response to abiotic stress, an adequate supply of Mn has shown to remediate plant manganese deficiency, induce Mn superoxide dismutase at the transcriptional level to face reactive oxygen species production, and stimulate manganese-dependent proteins to maintain cell integrity. Lately, nanoparticles (NPs) have been explored in agriculture applications. Recent studies have implied that Mn NPs may help plants to overcome abiotic stresses at higher efficiency and lower toxicity, compared to their bulk or ionic counterparts. Although studies have shown that Mn compounds promote crop growth and alleviate abiotic stress, many questions related to Mn-plant networking, their mode of signaling, and the Mn-dependent regulation processes need to be answered.
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