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首页> 外文期刊>Pakistan journal of botany >DEFENSIVE RESPONSES OF POPLUS DELTOIDES 895 SEEDLINGS AGAINST EXOGENOUS METHYL JASMONATE
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DEFENSIVE RESPONSES OF POPLUS DELTOIDES 895 SEEDLINGS AGAINST EXOGENOUS METHYL JASMONATE

机译：Poplus Deltoides 895幼苗对外源性甲酸的防守响应

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摘要

Methyl jasmonate (MeJA) is a chemical elicitor that induces a series of defensive responses in plants and has been widelyused to simulate pathogens and herbivore attacks for several decades. This study aimed to determine the effect of exogenousMeJA on one-year-old Populus deltoids 895 seedlings. MeJA solution (10μM) was sprayed on the leaves, and the activities ofsugar, free amino acid, four defensive enzymes, tannin, flavone, phenolic acid and volatile compounds were examined atdifferent time periods. Sugar, free amino acid, and protein contents decreased to some extent regardless of the type of treatment(direct MeJA-treated leaves or indirect contralateral non-MeJA-treated leaves), whereas tannin, flavone, and phenolic acidincreased. PPO, LOX, TI, and CI were activated by the treatment. MeJA also affected emissions of the leaf volatiles. Theseresults indicate that MeJA could generate or trigger defensive responses by P. deltoids seedlings. This study provided basicinformation as reference for further studies on defoliators performance after feeding on MeJA-treated poplar leaves.
机译：茉莉酸甲酯（MEJA）是一种化学引发器，它诱导植物中一系列防御反应，并广泛用于模拟几十年的病原体和食草动物攻击。本研究旨在确定外素宫ja对一岁的杨树三角形895幼苗的影响。在叶片上喷洒Meja溶液（10μm），以及劳动力，游泻，游离氨基酸，四种防御酶，单宁，黄酮，酚醛酸和挥发性化合物的活动。无论治疗类型（直接Meja治疗的叶子或间接对侧非Meja治疗的叶子），糖，游离氨基酸和蛋白质含量在一定程度上降低，而单宁，黄酮和酚醛酸。通过治疗激活PPO，LOX，TI和CI。 Meja也影响了叶子挥发物的排放。结果表明Meja可以通过P. Deltoids幼苗产生或触发防御响应。本研究提供了碱性信息作为进一步研究喂养Meja治疗的杨树叶后脱抗器性能的研究。

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