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: Min Zhou, Xiaolan Gong, Ying Wang, Chao Liu, Mengmeng Hong, Ling Wang, Fashui Hong
• Journal: Biological trace element research (Biol Trace Elem Res) Vol. 142 Issue 3 Pg. 760-72 (Sep 2011) ISSN: 1559-0720 [Electronic] United States
• PMID: 20635160 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Cerium
• Magnesium

Topics

• Cerium (pharmacology)
• Magnesium (metabolism)
• Phosphorylation (drug effects, radiation effects)
• Photosynthesis (drug effects)
• Zea mays (drug effects, metabolism)