title: Improvement of cerium of photosynthesis functions of maize under magnesium deficiency.
abstract: Rare earth elements can promote photosynthesis, but their mechanisms are still poorly understood under magnesium deficiency. The present study was designed to determine the role of cerium in magnesium-deficient maize plants. Maize was cultivated in Hoagland's solution added with cerium with and without adequate quantities of magnesium. Under magnesium-deficient conditions, cerium can prevents inhibition of synthesis of photosynthetic pigment, improves light energy absorption and conversion, oxygen evolution, and the activity of photo-phosphorelation and its coupling factor Ca(2+)-ATPase. These results suggest that cerium could partly substitute magnesium, improving photosynthesis and plant growth.
authors.affiliation: Medical College of Soochow University, 215123 Suzhou, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.forename: Xiaolan
authors.initials: X
authors.lastname: Gong
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Hong
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.forename: Fashui
authors.initials: F
authors.lastname: Hong
mesh_terms: D002563:Cerium / Q000494:pharmacology*; D008274:Magnesium / Q000378:metabolism*; D010766:Phosphorylation / Q000187:drug effects / Q000528:radiation effects; D010788:Photosynthesis / Q000187:drug effects*; D003313:Zea mays / Q000187:drug effects* / Q000378:metabolism*
chemical_list: D002563:Cerium; D008274:Magnesium