低硼及高硼胁迫对棉花幼苗生长与脯氨酸代谢的影响

曾紫君, 曾钰, 闫磊, 程锦, 姜存仓

Effects of boron deficiency/toxicity on the growth and proline metabolism of cotton seedlings

ZENG Zi-Jun, ZENG Yu, YAN Lei, CHENG Jin, JIANG Cun-Cang

图3 低硼和高硼胁迫下棉花幼苗叶片和根的脯氨酸合成及代谢途径 Glutamate: 谷氨酸; Ornithine: 鸟氨酸; GSA: 谷氨酰半醛; P5C: 吡咯啉-5-羧酸; Proline: 脯氨酸; P5CS: Δ1-吡咯啉-5-羧酸合成酶; P5CR: Δ1-吡咯啉-5-羧酸还原酶; OAT: 鸟氨酸转氨酶; ProDH: 脯氨酸脱氢酶; P5CDH: 吡咯啉-5-羧酸脱氢酶。

Fig. 3 Proline synthesis and metabolism pathway in leaves and roots of cotton seedlings under low and high boron stress GSA: γ-glutamate-semialdehyde; P5C: pyrroline-5-carboxylate; P5CS: Δ1-pyrroline-5-carboxylate synthetase; P5CR: Δ1-pyrroline-5-carboxylate reductase; OAT: ornithine-δ-aminotransferase; ProDH: proline dehydrogenase; P5CDH: pyrroline-5-carboxylate dehydrogenase.