Persistent Supercooling of Reproductive Shoots Is Enabled by Structural Ice Barriers Being Active Despite an Intact Xylem Connection Kuprian, Edith ; Tuong, Tan D. ; Pfaller, Kristian ; Wagner, Johanna ; Livingston, David P. ; Neuner, Gilbert Abstract Publication: PLoS ONE Pub Date: September 2016 DOI: 10.1371/journal.pone.0163160 Bibcode: 2016PLoSO..1163160K