Higher Atmospheric CO₂ Levels Favor C₃ Plants Over C₄ Plants in Utilizing Ammonium as a Nitrogen Source.

ABSTRACT: Photosynthesis of wheat and maize declined when grown with NH₄ ⁺ as a nitrogen (N) source at ambient CO₂ concentration compared to those grown with a mixture of NO₃ ^- and NH₄ ⁺, or NO₃ ^- as the sole N source. Interestingly, these N nutritional physiological responses changed when the atmospheric CO₂ concentration increases. We studied the photosynthetic responses of wheat and maize growing with various N forms at three levels of growth CO₂ levels. Hydroponic experiments were carried out using a C₃ plant (wheat, Triticum aestivum L. cv. Chuanmai 58) and a C₄ plant (maize, Zea mays L. cv. Zhongdan 808) given three types of N nutrition: s

SUBMITTER: Wang F 

PROVIDER: S-EPMC7738331 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature