Ablation of Papillar Cell Function in Brassica Flowers Results in the Loss of Stigma Receptivity to Pollination.
MK Kandasamy, MK Thorsness, SJ Rundle, ML Goldberg, JB Nasrallah, and ME Nasrallah
Plant Cell. 1993 March; 5(3): 263–275. PMCID: PMC160268