Can narrow-bandwidth light from UV-A to green alter secondary plant metabolism and increase Brassica plant defenses against aphids?
Can narrow-bandwidth light from UV-A to green alter secondary plant metabolism and increase Brassica plant defenses against aphids?
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DOI：
10.1371/journal.pone.0188522
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Poehling HM
中科院分区：
文献类型：
--
作者：
Rechner O;Neugart S;Schreiner M;Wu S;Poehling HM
不同波长的光对植物的生长发育是必不可少的。短波长辐射，如紫外线，可以改变黄酮类、硫代葡萄糖苷和其他植物代谢物的组成，这些代谢物负责增强对某些食草性昆虫的防御。光诱导的基于代谢产物的抗性的强度是植物和昆虫物种特有的，取决于食草动物的摄食行会和专门化。在受保护环境下的园艺植物生产系统中，越来越多地使用发光二极管(LED)，这使得为改进植物栽培和诱导对食草性昆虫的防御而创造出量身定做的光照场景。本研究以西兰花(Brassica oleracea var.)意大利)植物在气候室中生长在广谱光合有效辐射(PAR)下，并用LED产生的窄带光：UV-A(365 Nm)、紫色(420 Nm)、蓝色(470 Nm)或绿色(515 Nm)进行处理。我们测定了窄带光对青花菜植株生长、植物次生代谢(黄酮苷和硫代葡萄糖苷)的影响，以及植物介导的光对甘蓝专化型菜蚜的表现和行为的影响。绿光比UV-A、紫光或蓝光LED处理更能增加植株高度。在黄酮苷中，在紫光照射下，特异的槲皮素和山奈酚糖苷含量增加。UV-A处理提高了植物体内3-吲哚甲基硫代葡萄糖苷的含量。甘蓝型油菜表现不受不同光质的影响，但在寄主选择试验中，甘蓝型油菜对以前的蓝光植物(而不是UV-A、紫罗兰光或绿光植物)的偏好高于对照植物。
Light of different wavelengths is essential for plant growth and development. Short-wavelength radiation such as UV can shift the composition of flavonoids, glucosinolates, and other plant metabolites responsible for enhanced defense against certain herbivorous insects. The intensity of light-induced, metabolite-based resistance is plant- and insect species-specific and depends on herbivore feeding guild and specialization. The increasing use of light-emitting diodes (LEDs) in horticultural plant production systems in protected environments enables the creation of tailor-made light scenarios for improved plant cultivation and induced defense against herbivorous insects. In this study, broccoli (Brassica oleracea var. italica) plants were grown in a climate chamber under broad spectra photosynthetic active radiation (PAR) and were additionally treated with the following narrow-bandwidth light generated with LEDs: UV-A (365 nm), violet (420 nm), blue (470 nm), or green (515 nm). We determined the influence of narrow-bandwidth light on broccoli plant growth, secondary plant metabolism (flavonol glycosides and glucosinolates), and plant-mediated light effects on the performance and behavior of the specialized cabbage aphid Brevicoryne brassicae. Green light increased plant height more than UV-A, violet, or blue LED treatments. Among flavonol glycosides, specific quercetin and kaempferol glycosides were increased under violet light. The concentration of 3-indolylmethyl glucosinolate in plants was increased by UV-A treatment. B. brassicae performance was not influenced by the different light qualities, but in host-choice tests, B. brassicae preferred previously blue-illuminated plants (but not UV-A-, violet-, or green-illuminated plants) over control plants.
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影响因子：
3.7
作者：
Dhakal R;Park E;Lee SW;Baek KH
通讯作者：
Baek KH
DOI：
10.1016/j.jphotobiol.2014.06.009
发表时间：
2014-09-05
影响因子：
5.4
作者：
Dader, Beatriz;Gwynn-Jones, Dylan;Fereres, Alberto
通讯作者：
Fereres, Alberto
DOI：
10.1016/j.jphotobiol.2015.11.015
发表时间：
2016-01-01
影响因子：
5.4
作者：
Ahmad, Naveed;Rab, Abdur;Ahmad, Nisar
通讯作者：
Ahmad, Nisar
影响因子：
6.9
作者：
Kuhlmann, Franziska;Mueller, Caroline
通讯作者：
Mueller, Caroline
影响因子：
5.7
作者：
Johkan, M.;Shoji, K.;Yoshihara, T.
通讯作者：
Yoshihara, T.