R-Smads comprising: 

An N-terminal MH1 domain

A central proline-rich linker 

A C-terminal MH2 domain

TLS Online TPP Program

#Id: 9285

#XL - R Botany

O2‐sensitive hemoprotein kinase FixL controls a regulatory cascade that activates transcription of nitrogen fixation genes

TLS Online TPP Program

#Id: 9290

#XL - R Botany

Ammonium uptake from the soil is carried by AMT/Rh family transporters

TLS Online TPP Program

#Id: 9291

#XL - R Botany

Two types of symporters (NRT1 and NRT2) and one antiporter (CLC) are involved in nitrate transport in plants.

TLS Online TPP Program

#Id: 9292

#XL - R Botany

TLS Online TPP Program

#Id: 9293

#XL - R Botany

Ammonium assimilation in roots

TLS Online TPP Program

#Id: 9294

#XL - R Botany

Nitrate reductase

Homodimers, two identical subunits

Each subunit with 100kD

Each subunit contains 3 prosthetic groups:

FAD, heme, and molybdenum complexed to pterin (an organic molecule).