Electrical stimulation boosts seed germination, seedling growth, and thermotolerance improvement in maize (Zea mays L.).

IF 3.6 Plant signaling & behavior Pub Date : 2019-01-01 Epub Date: 2019-10-25 DOI:10.1080/15592324.2019.1681101

Zhong-Guang Li, Hua-Qiong Gou, Rong-Qing Li

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引用次数: 4

Abstract

Electrical signaling, similar to chemical signalings such as calcium (Ca²⁺), reactive oxygen species (ROS, mainly hydrogen peroxide: H₂O₂), nitric oxide (NO), and hydrogen sulfide (H₂S), regulates many physiological processes. However, the effect of electrical stimulation on seed germination, seedling growth, and thermotolerance improvement in maize was little known. In this study, using maize as materials, the effect of electrical stimulation on seed germination, seedling growth, and thermotolerance improvement in maize was explored. The results suggested that electrical stimulation with optimal intensity boosted germination rate and seedling growth (as indicated in the increase in the length of shoots and roots, as well as fresh weight) under normal germination conditions. In addition, electrical stimulation augmented the survival rate of maize seedlings, mitigated the decrease in the tissue vitality, and reduced the peroxidation of membrane lipids under heat stress. These data suggested that electrical stimulation could boost seed germination, seedling growth, and thermotolerance improvement in maize.

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电刺激促进玉米种子发芽、幼苗生长和耐热性的提高。

电信号类似于化学信号，如钙（Ca2+）、活性氧（ROS，主要是过氧化氢：H2O2）、一氧化氮（NO）和硫化氢（H2S），调节许多生理过程。然而，电刺激对玉米种子发芽、幼苗生长和耐热性提高的影响尚不清楚。本研究以玉米为材料，探讨了电刺激对玉米种子发芽、幼苗生长和耐热性提高的影响。结果表明，在正常发芽条件下，最佳强度的电刺激提高了发芽率和幼苗生长（表现为芽和根的长度以及鲜重的增加）。此外，电刺激提高了玉米幼苗的存活率，缓解了组织活力的下降，并减少了热胁迫下膜脂的过氧化。这些数据表明，电刺激可以促进玉米种子发芽、幼苗生长和耐热性的提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Plant signaling & behavior

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