School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.
Plant Signal Behav. 2010 Aug;5(8):1031-3. doi: 10.4161/psb.5.8.12297. Epub 2010 Aug 1.
We recently reported that H 2S could significantly promote the germination of wheat grains subjected to aluminum (Al(3+)) stress.1 In these experiments seeds were pretreated with the H 2S donor NaHS for 12 h prior to Al(3+) stress. During this pre-incubation period we observed that H2S increased the activity of grain amylase in the absence of Al(3+). Using embryoless half grains of wheat we now show that H2S preferentially affects the activity of endosperm β-amylase and that α-amylase synthesis and activity is unaffected by this treatment.
我们最近报道，H 2 S 可以显著促进受到铝（Al(3+)）胁迫的小麦种子的萌发。1 在这些实验中，种子在用 H 2 S 供体 NaHS 预处理 12 小时后再施加 Al(3+)胁迫。在这段预孵育期间，我们观察到 H 2 S 在没有 Al(3+)的情况下增加了谷物淀粉酶的活性。现在，我们使用无胚半粒小麦表明，H 2 S 优先影响胚乳β-淀粉酶的活性，而这种处理对α-淀粉酶的合成和活性没有影响。
