Altered Cell Wall Plasticity Can Restrict Plant Growth under Ammonium Nutrition.

ABSTRACT: Plants mainly utilize inorganic forms of nitrogen (N), such as nitrate (NO₃^-) and ammonium (NH₄⁺). However, the composition of the N source is important, because excess of NH₄⁺ promotes morphological disorders. Plants cultured on NH₄⁺ as the sole N source exhibit serious growth inhibition, commonly referred to as "ammonium toxicity syndrome." NH₄⁺-mediated suppression of growth may be attributable to both repression of cell elongation and reduction of cell division. The precondition for cell enlargement is the expansion of the cell wall, which requires the loosening of the cell wall polymers. Therefore, to understand how NH₄⁺ nutrition may trigger growth retar

SUBMITTER: Podgorska A 

PROVIDER: S-EPMC5554365 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature