1. Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, Bet Dagan 50250, Israel (H.F., S.M., I.R., S.P.-H.)
2. The Kennedy-Leigh Centre for Horticultural Research, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76100, Israel (A.H.H.)
3. Department of Biology, The University of Michigan, Ann Arbor, Michigan 48109–1048 (P.B.K.)