Proline concentration, Δ1-pyrroline-5-carboxylate synthetase (P5CS) activity, ornithine δ-aminotransferase (OAT) activity and soluble protein (SP) concentration in the new buds germinated during recovery from −1.0 MPa.

Note: Control, normal mature leaves; 1 new buds without proline application in recovery solution; 2 new buds with 10 mM proline in recovery solution; different letters in the same column indicate significant difference at P注：对照组为正常成熟叶片；组1：复苏液中未添加脯氨酸(proline)的新生芽；组2：复苏液中添加10 mM脯氨酸的新生芽；同一列内的不同字母代表在P水平下存在显著差异。