Superior glucose metabolism supports NH assimilation in wheat to improve ammonium tolerance.

The use of slow-release fertilizers and seed-fertilizers cause localized high-ammonium (NH ) environments in agricultural fields, adversely affecting wheat growth and development and delaying its yield. Thus, it is important to investigate the physiological responses of wheat and its tolerance to NH stress to improve the adaptation of wheat to high NH environments. In this study, the physiological mechanisms of ammonium tolerance in wheat () were investigated in depth by comparative analysis of two cultivars: NH -tolerant Xumai25 and NH -sensitive Yangmai20.

Enhanced Stomatal Conductance Supports Photosynthesis in Wheat to Improved NH Tolerance.

The impact of ammonium (NH) stress on plant growth varies across species and cultivars, necessitating an in-depth exploration of the underlying response mechanisms. This study delves into elucidating the photosynthetic responses and differences in tolerance to NH stress by investigating the effects on two wheat ( L.) cultivars, Xumai25 (NH-less sensitive) and Yangmai20 (NH-sensitive).

A low red/far-red ratio restricts nitrogen assimilation by inhibiting nitrate reductase associated with downregulated TaNR1.2 and upregulated TaPIL5 in wheat (Triticum aestivum L.).

Understanding the physiological mechanism underlying nitrogen levels response to a low red/far-red ratio (R/FR) can provide new insights for optimizing wheat yield potential but has been not well documented. This study focused on the changes in nitrogen levels, nitrogen assimilation and nitrate uptake in wheat plants grown with and without additional far-red light. A low R/FR reduced wheat nitrogen accumulation and grain yield compared with the control.