The primary nitrate response TGA1 and TGA4 transcription factors are negative regulators of sulfate uptake and metabolism
It is shown that provision of nitrate rapidly induces sulfate uptake and assimilation through a yet undefined mechanism, followed by a delayed repression of SULTR1;2 mediated by clade I TGA transcription factors, which negatively regulate sulfur metabolism not only under nitrate provision, but also under sulfate starva...