Hydrolysis of terminal non-reducing beta-D-fructofuranoside residues in beta-D-fructofuranosides. Associated to the cell wall. A number of isoforms are produced. According to EST sequences. Expressed in flowers, and seeds. By aeroponic growth condition, darkness, sucrose, glucose and mannitol. Belongs to the glycosyl hydrolase 32 family. Extended C-terminus.