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为了研究茉莉酸甲酯(MeJA)对锁阳茎切口愈合及抗氧化酶活性的影响,测定了锁阳茎3个部位的切口愈合能力(抗失水力)、多酚含量、褐变度以及苯丙氨酸解氨酶(PAL)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)及抗坏血酸过氧化物酶(APX)活性随切口愈合时间的变化。结果表明,外源MeJA处理明显提高了锁阳茎3个部位的抗失水力和多酚含量,增强了PAL活性及抗氧化酶活性,降低了其褐变度。从而加速了锁阳茎切口愈合,减少失水也提高了其抗氧化能力,进而增强锁阳茎抵抗机械损伤的能力。
In order to study the effect of methyl jasmonate (MeJA) on the incision healing and antioxidant enzyme activity in the stem of Cynomolgus, we measured the incision healing ability (resistance to water loss), polyphenol content, browning degree, The changes of PAL, SOD, CAT and APX activities with the incision healing time were analyzed. The results showed that the exogenous MeJA treatment significantly increased the resistance to water loss and polyphenol content in three parts of the stem, increased PAL activity and antioxidant enzyme activity, and decreased the degree of browning. Thus accelerating the healing of the incisal stem incision, reducing dehydration also increased its antioxidant capacity, thus enhancing the ability of the lock stem to resist mechanical damage.