00250nam a2200097Ia 4500008004100000082001900041100002000060245002900080260003500109300000800144140113s9999    xx            000 0 und d  a581.14   L1.6A  a"Steward, F.C."  aPlant Physiology Vol. VA  a1971bAcademic PresscNew York  a541