© 1988 Heron Publishing—Victoria, Canada
Inhibition of protein synthesis in loblolly pine hypocotyls by mannitol-induced water stress
C. Hulbert (1), E. A. Funkhouser (2), E. J. Soltes (1) and R. J. Newton (1)
1. Department of Forest Science, Texas Agricultural Experiment Station, Texas A&M University System, College Station, TX 77843,
USA / 2. Department of Biochemistry and Biophysics, Texas Agricultural Experiment Station, Texas A&M University System, College Station,
TX 77843, USA / Received June 6, 1987
Summary
The relationship between mannitol-induced water stress and protein synthesis was investigated in hypocotyl slices of loblolly
pine (Pinus taeda L.). Mannitol-induced water stress inhibited the incorporation of L-[35S]methionine into protein. As the water potential decreased, incorporation of label into protein decreased in both the soluble-
and membrane-protein fractions. There were no significant differences in response to water stress among seed sources from
four different geographical regions.
