Wojciechowska N., Smugarzewska I., Marzec-Schmidt K., Zarzyńska-Nowak A., Bagniewska-Zadworna A. 2019. Occurrence of autophagy during pioneer root and stem development in Populus trichocarpa. Planta. 250(6): 1789-801. doi:10.1007/s00425-019-03265-5