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首页> 外文期刊>Australian Journal of Crop Science >Beneficial repercussion of silicon (Si) application on photosynthetic pigments in maize plants
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Beneficial repercussion of silicon (Si) application on photosynthetic pigments in maize plants

机译：硅在玉米植物光合色素上的有益影响

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Silicon (Si) is a beneficial element to higher plants. Its effects frequently linked to physiological, morphological, nutritional, and molecular aspects in plants. This study aimed to measure the compounds linked to oxidative stress and cell damages, besides to evaluate the consequences of exogenous Si application on photosynthetic pigments in maize plants (hybrid 30F53YH Pioneer?). The experiment employed an entirely randomized design with two silicon treatments (0 and 2 mM Si). The experiment was assembled with five replicates for a total of 10 experimental units, with one plant in each unit. Parameters measured were hydrogen peroxide, glutathione, electrolyte leakage and malondialdehyde, besides chlorophylls and carotenoids. The silicon application did not cause significant changes in hydrogen peroxide, glutathione, electrolyte leakage and malondialdehyde in leaf and root tissues of plant. On the other hand, the exogenous Si induced significant increases in CHL a, CHL b and total CHL. This study proved that silicon promotes beneficial effects on photosynthetic pigments and stability of the cell membrane due to maintenance in oxidant compounds in young Zea mays plants. Therefore, the application of 2 mM Si can be recommended to maximize the chlorophylls in maize crop, which needs further studies on economic reliability.
机译：硅（Si）是高等植物的有益元素。它的作用通常与植物的生理，形态，营养和分子方面有关。这项研究旨在评估与氧化应激和细胞损伤有关的化合物，并评估外源施硅对玉米植物光合色素的影响（杂种30F53YH Pioneer？）。实验采用了完全随机的设计，并进行了两种硅处理（0和2 mM Si）。该实验以五个重复进行组装，总共10个实验单元，每个单元中有一个植物。除叶绿素和类胡萝卜素外，测得的参数还有过氧化氢，谷胱甘肽，电解质泄漏和丙二醛。硅的施用不会引起植物的叶和根组织中的过氧化氢，谷胱甘肽，电解质泄漏和丙二醛的显着变化。另一方面，外源Si诱导CHL a，CHL b和总CHL显着增加。这项研究证明，硅可以促进光合色素和细胞膜稳定性的有益作用，这归因于玉米幼体中氧化剂化合物的维持。因此，可以建议使用2 mM Si来最大化玉米作物中的叶绿素，这需要对经济可靠性进行进一步研究。

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