Hydrogen peroxide (H2O2) is a signal molecule that plays a crucial role in plant secondary metabolism. In order to explore the signaling mechanism of endophytic fungal elicitors (Penicillium commune 2J1) for promoting 1,8-eucalyptus accumulation in C. longepaniculatum, changes in the contents of H2O2 and 1,8-eucalyptus were investigated after the addition of elicitors to the C. longepaniculatum cultures. The experimental results showed that the 1,8-eucalyptus contents in C. longepaniculatum cells were increased upon addition of the endophytic fungal elicitors into the culture. It’s maybe through Hydrogen peroxide (H2O2) signal molecule. When different concentrations of elicitors were added to C. longepaniculatum suspension cells, the changes in the content of H2O2 and 1,8-eucalyptus showed the same trend, and both reached the highest value at 40 mg/L of elicitor concentration, indicating that the endogenous fungal elicitors affect the accumulation of 1,8-eucalyptus through H2O2 signaling molecular pathway. When CAT was added, the 1,8-eucalyptus decreased but was not completely inhibited, indicating that the elicitors also have other signaling pathways.,
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机译：过氧化氢（H2O2）是一种信号分子，在植物的次生代谢中起着至关重要的作用。为了探索内生真菌激发子（Penicillium commune 2J1）促进长脊孢菌中1,8-桉树积累的信号传导机制，在将激发子添加到C. longepaniculatum中后，研究了H2O2和1,8-桉树的含量变化。 C. longepaniculatum培养物。实验结果表明，在培养物中加入内生真菌激发子后，长链念珠菌细胞中1,8-桉树的含量增加。可能是通过过氧化氢（H2O2）信号分子。当将不同浓度的激发子添加到长链念珠菌悬浮细胞中时，H2O2和1,8-桉树油的含量变化呈现出相同的趋势，并且在40 mg / L激发子浓度下均达到最高值，表明内源性真菌激发子通过H2O2信号分子途径影响1,8-桉树的积累。当添加CAT时，1,8-桉树减少但未被完全抑制，表明引发子也具有其他信号通路。
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