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Electric stimulation promotes growth, mineral uptake, and antioxidant accumulation in kale (Brassica oleracea var. acephala).

电刺激促进羽衣甘蓝的生长、矿物质吸收和抗氧化剂积累。

  • 影响因子:4.37
  • DOI:10.1016/j.bioelechem.2020.107727
  • 作者列表:"Lee S","Oh MM
  • 发表时间:2021-04-01
Abstract

:Several studies have demonstrated that electric treatment has a positive effect, respectively, on germination, root growth and post-harvest quality. Nevertheless, there is still a lack of research on the effect of electric treatment on growth characteristics and quality of whole plants. Here, we explored the effect of electric fields on two cultivars of kale (Brassica oleracea var. acephala). Three levels of electric current (10, 50, and 100 mA) were applied to the nutrient solution of hydroponically grown plants for three weeks. Kale plants subjected to the electric fields, particularly 50 mA, had higher fresh and dry weights than the control. The absence of an electric field in a Faraday cage caused a significant decrease in shoot and root growth compared with the natural electric field (control). Electrostimulation enhanced nutrient uptake by activating root hair formation and active ion transport. Plants grown under 50 mA contained 72% more calcium, 57% more total phenolic compounds, and had a 70% greater antioxidant capacity than the control. This work provides foundational information regarding the effects of electrical stimulus on plants, which could enable the development of innovative culture technologies to improve crop yields and quality.

摘要

: 几项研究表明,电处理分别对发芽、根系生长和收获后质量有积极影响。然而,电处理对全株生长特性和品质的影响仍缺乏研究。在这里,我们探讨了电场对两个羽衣甘蓝品种的影响。将三个水平的电流 (10、50和100 mA) 施加到水培植物的营养液中,持续三周。经受电场 (特别是50 mA) 的羽衣甘蓝植物具有比对照更高的鲜重和干重。与自然电场 (对照) 相比,法拉第笼中没有电场导致芽和根生长的显著降低。电刺激通过激活根毛形成和活性离子转运增强营养吸收。生长在50 mA以下的植物含有72% 以上的钙,57% 以上的总酚类化合物,并且具有比对照高70% 的抗氧化能力。这项工作提供了关于电刺激对植物影响的基础信息,这可以促进创新培养技术的发展,以提高作物产量和质量。

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