To study the effect of jasmonates (JAs) on the resistance of economic forest plants to insects, Rosa rugosa ‘Plena’ leaves were treated with 1 mmol/L jasmonic acid (JA), methyl jasmonate (MeJA) and Z-jasmone, then the content of tannin and total phenol in leaves and the feeding area of Monolepta hieroglyphica adults on leaves were measured. Changes in the activities of detoxification enzymes in adult M. hieroglyphica that had fed on leaves treated with JAs were also studied. Tannin and total phenol levels in leaves increased significantly after treatment with JAs, and tannin level was 1.36–1.55-fold higher than in the control after treatment with 1 mmol/L MeJA. The total content of phenol in leaves treated with 1.0 mmol/L Z-jasmone increased by 1.33–2.20-fold compared with those of the control. The activities of detoxification enzymes in adults were inhibited to differing degrees: activity of alkaline phosphatase (AKP) first increased, then decreased; the activities of acid phosphatase (ACP), glutathione S-transferases (GSTs) and carboxylesterase (CarE) following treatment with 1 mmol/L MeJA were significantly reduced and were 22%–31%, 11%–26%, and 11%–31% lower than those of the control, respectively. Moreover, the feeding area of adult M. hieroglyphica on the leaves treated with JAs was significantly reduced (P < 0.05). The feeding area of economic forest R. rugosa ‘Plena’ leaves treated with 1 mmol/L MeJA decreased by 17%–43% compared with that of the control. Moreover, the decrease in the adult M. hieroglyphica feeding area was highly positively correlated with the content of tannin and positively correlated with the contents of total phenol of economic forest R. rugosa ‘Plena’ leaves. The reduced feeding area of adult M. hieroglyphica was highly negatively correlated with the activities of AKP and ACP and negatively correlated with those of the GSTs. In conclusion, the use of 1 mmol/L MeJA can noticeably decrease the deleterious effects of adult M. hieroglyphica.

为了研究茉莉酸酯（JAs ）对经济林植物对昆虫的抗性的作用，用1 mmol / L茉莉酸（JA），茉莉酸甲酯（MeJA）和Z-茉莉酮处理蔷薇叶（Rosa rugosa'Plena '）叶片，然后测定了叶片中单宁和总酚的含量，以及象形文字成虫在叶片上的摄食面积。还研究了以JAs为食的成年象形文字的解毒酶活性的变化。用JAs处理后，叶片中的单宁和总酚水平显着增加，而用1 mmol / L MeJA处理后，单宁水平比对照高1.36-1.55倍。1.0 mmol / L处理的叶片中苯酚的总含量与对照组相比，Z-茉莉酮增加了1.33–2.20倍。成年人的排毒酶活性受到不同程度的抑制：碱性磷酸酶（AKP）的活性先增加，然后降低；其次是碱性磷酸酶。用1 mmol / L MeJA处理后，酸性磷酸酶（ACP），谷胱甘肽S-转移酶（GSTs）和羧酸酯酶（CarE）的活性显着降低，分别为22％–31％，11％–26％和11％–分别比对照组低31％。此外，JAs处理后的成年象形文字的摄食面积明显减少（P  <0.05）。经济林R. rugosa的取食区与对照相比，用1 mmol / L MeJA处理的'斑丽'叶片减少了17％–43％。此外，成年象形文字的摄食面积的减少与单宁含量呈正相关，与经济林皱叶芸香'Plena'叶片总酚含量呈正相关。成年象形虫的摄食面积减少与AKP和ACP的活性高度负相关，与GST的活性负相关。总之，使用1 mmol / L MeJA可以显着降低成年M.象形文字的有害作用。