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Inductive effects of exogenous calcium on the defense of kidney bean plants against Frankliniella occidentalis (Thysanoptera: Thripidae)
Arthropod-Plant Interactions ( IF 1.6 ) Pub Date : 2020-04-01 , DOI: 10.1007/s11829-020-09753-w Guang Zeng , Junrui Zhi , Mao Ye , Wenbo Yue , Jia Song
Arthropod-Plant Interactions ( IF 1.6 ) Pub Date : 2020-04-01 , DOI: 10.1007/s11829-020-09753-w Guang Zeng , Junrui Zhi , Mao Ye , Wenbo Yue , Jia Song
Calcium (Ca) is an essential macronutrient for plant growth. It can confer plants with resistance to abiotic stresses. However, little is understood about its role on biotic stresses. Frankliniella occidentalis (Thysanoptera: Thripidae) is one of the world’s most important invasive pests and poses a great threat to crops; meanwhile, it is hard to control due to its polyphagia and rapid reproduction. In order to clarify the effects of Ca on the induced defense of kidney bean plants against F. occidentalis by different application methods, we treated plants with different concentrations of CaCl2 solution using three methods, including spraying on leaf, root-irrigation, and seed soaking. The activities of defensive enzymes in leaves of kidney bean plants in response to F. occidentalis feeding as well as the developmental time of F. occidentalis were examined. The results showed that all the three treatment methods with different concentrations of CaCl2 solution could obviously induce activities of lipoxygenase (LOX), phenylalanine ammonia lyase (PAL), and β-1, 3-glucanase in leaves of kidney bean plants against F. occidentalis, while inductive effects of spraying the 10 mM CaCl2 on leaves were the best among all the treatments. Furthermore, we found that the developmental time of the whole immature stage of F. occidentalis feeding on plants sprayed with 10 mM CaCl2 was longer than those on control plants. Overall, our results indicated that the exogenous CaCl2 could enhance enzymatic activities in plants by thrips-induced effects, and spraying 10 mM CaCl2 on leaves of kidney bean plants showed the highest resistance against F. occidentalis.
中文翻译:
外源钙对芸豆对西方富兰克氏菌(Thysanoptera:Thripidae)的防御作用的诱导作用。
钙(Ca)是植物生长必不可少的大量营养素。它可以赋予植物抗非生物胁迫的能力。然而,对其在生物胁迫中的作用了解甚少。西方富兰克氏菌(Thysanoptera:Thripidae)是世界上最重要的入侵性害虫之一,对农作物构成极大威胁。同时,由于其多相性和快速繁殖,很难控制。为了阐明Ca通过不同的施用方法对菜豆诱导的防御西花蓟马的防御作用,我们用不同浓度的CaCl 2处理了植物。使用三种方法(包括在叶上喷洒,根系灌溉和种子浸泡)制成溶液。在菜豆植物叶片防御酶的响应活动的西花蓟马饲养以及的发育时间西花蓟马进行了检查。结果表明,三种不同浓度CaCl 2溶液处理方法均能明显诱导豆科植物叶片中脂氧合酶(LOX),苯丙氨酸氨裂合酶(PAL)和β-1、3-葡聚糖酶的活性。西方的,同时喷洒10 mM CaCl 2的诱导作用在所有处理中,叶子上最好的。此外,我们发现,以10 mM CaCl 2喷雾的西洋参饲料的整个未成熟阶段的发育时间比对照植物更长。总体而言,我们的结果表明,外源CaCl 2可以通过蓟马诱导的作用增强植物的酶活性,在芸豆植物的叶片上喷洒10 mM CaCl 2表现出对西洋蓟马的最高抗性。
更新日期:2020-04-01
中文翻译:
外源钙对芸豆对西方富兰克氏菌(Thysanoptera:Thripidae)的防御作用的诱导作用。
钙(Ca)是植物生长必不可少的大量营养素。它可以赋予植物抗非生物胁迫的能力。然而,对其在生物胁迫中的作用了解甚少。西方富兰克氏菌(Thysanoptera:Thripidae)是世界上最重要的入侵性害虫之一,对农作物构成极大威胁。同时,由于其多相性和快速繁殖,很难控制。为了阐明Ca通过不同的施用方法对菜豆诱导的防御西花蓟马的防御作用,我们用不同浓度的CaCl 2处理了植物。使用三种方法(包括在叶上喷洒,根系灌溉和种子浸泡)制成溶液。在菜豆植物叶片防御酶的响应活动的西花蓟马饲养以及的发育时间西花蓟马进行了检查。结果表明,三种不同浓度CaCl 2溶液处理方法均能明显诱导豆科植物叶片中脂氧合酶(LOX),苯丙氨酸氨裂合酶(PAL)和β-1、3-葡聚糖酶的活性。西方的,同时喷洒10 mM CaCl 2的诱导作用在所有处理中,叶子上最好的。此外,我们发现,以10 mM CaCl 2喷雾的西洋参饲料的整个未成熟阶段的发育时间比对照植物更长。总体而言,我们的结果表明,外源CaCl 2可以通过蓟马诱导的作用增强植物的酶活性,在芸豆植物的叶片上喷洒10 mM CaCl 2表现出对西洋蓟马的最高抗性。