02347nam a2200325Ia 4500 MX-MdCICY 20260521091625.0 CICY B-18280 How does nitrogen shape plant architecture? Journal of Experimental Botany, https://doi.org/10.1093/jxb/eraa187, 2020 Plant nitrogen (N), acquired mainly in the form of nitrate and ammonium from soil, dominates growth and development, and high-yield crop production relies heavily on N fertilization. The mechanisms of root adaptation to altered supply of N forms and concentrations have been well characterized and reviewed, while reports concerning the effects of N on the architecture of vegetative and reproductive organs are limited and are widely dispersed in the literature. In this review, we summarize the nitrate and amino acid regulation of shoot branching, flowering, and panicle development, as well as the N regulation of cell division and expansion in shaping plant architecture, mainly in cereal crops. The basic regulatory steps involving the control of plant architecture by the N supply are auxin-, cytokinin-, and strigolactone-controlled cell division in shoot apical meristem and gibberellin-controlled inverse regulation of shoot height and tillering. In addition, transport of amino acids has been shown to be involved in the control of shoot branching. The N supply may alter the timing and duration of the transition from the vegetative to the reproductive growth phase, which in turn may affect cereal crop architecture, particularly the structure of panicles for grain yield. Thus, proper manipulation of N-regulated architecture can increase crop yield and N use efficiency. AMINO ACIDS AMMONIUM ARCHITECTURE FLOWERING TIME NITRATE PANICLE STRUCTURE PHYTOHORMONES SHOOT BRANCHING TILLERING TRANSCRIPTION FACTOR TRANSPORTER Luo, L. Zhang, Y. Xu, G. https://drive.google.com/file/d/1V5cvwAiGeeGcwC177RTYF1F8523JvdEZ/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 28371 28371 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-18280 2025-06-25 16:02:26 2025-06-25 REF1