GUS activity in cross to pistil wild type with pollen from heterozygous PNIP4; 1 :: GUS (I-M) and PNIP4; 2 :: GUS (N-R) homozygous transgenic plants.

Pollen-specific aquapornis NIP4;! and NIP$:2 are required for pollen development ab pollination in arabidopsis thaliana.
Perez Di Giorgio J, Bienert GP, Ayub N, Yanneff A, Barberini ML, Mecchia MA, Amodeo G, Soto G, Muschietti JP.

Plant Cell 2016 Apr. 19. pii:TPC: 00776.2015
[epub ahead of print]