Beneficial role of Coronatine on the morphological and physiological responses of Cress Plants (Lepidium sativum) exposed to Silver Nanoparticle.

IF 3.4 3区 生物学 Q1 Agricultural and Biological Sciences
Shahla Hashemi Shahraki, Fereshteh Mohamadhasani Javar, Babak Jamali, Fatemeh Sargazi
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Abstract

Background: Silver nanoparticles are widely used in various fields such as industry, medicine, biotechnology, and agriculture. However, the inevitable release of these nanoparticles into the environment poses potential risks to ecosystems and may affect plant productivity. Coronatine is one of the newly identified compounds known for its beneficial influence on enhancing plant resilience against various stress factors. To evaluate the effectiveness of coronatine pretreatment in mitigating the stress induced by silver nanoparticles on cress plants, the present study was carried out.

Results: Our findings indicated a decrease in multiple growth parameters, proline content, chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids in cress plants exposed to silver nanoparticle treatment. This decline could be attributed to the oxidative stress induced by the presence of silver nanoparticles in the plants. Conversely, when coronatine treatment was applied, it effectively mitigated the reduction in growth parameters and pigments induced by the silver nanoparticles. Furthermore, we observed an increase in silver content in both the roots and shoot portions, along with elevated levels of malondialdehyde (MDA) content, hydrogen peroxide (H2O2), anthocyanins, glutathione (GSH), and antioxidant enzyme activities in plants exposed to silver nanoparticles. Concurrently, there was a decrease in total phenolic compounds, ascorbate, anthocyanins, and proline content. Pre-treatment of cress seeds with coronatine resulted in increased levels of GSH, total phenolic compounds, and proline content while reducing the silver content in both the root and shoot parts of the plant.

Conclusions: Coronatine pre-treatment appeared to enhance both enzymatic and non-enzymatic antioxidant activities, thereby alleviating oxidative stress and improving the response to stress induced by silver nanoparticles.

冠突散囊菌素对暴露于纳米银粒子的芹菜植物(Lepidium sativum)的形态和生理反应的有益作用。
背景:银纳米粒子被广泛应用于工业、医药、生物技术和农业等各个领域。然而,这些纳米颗粒不可避免地会释放到环境中,给生态系统带来潜在风险,并可能影响植物的生产力。冕宁碱是新发现的化合物之一,它对增强植物抵御各种胁迫因素的能力具有有益的影响。为了评估冕宁碱预处理在减轻银纳米粒子对芹菜植物造成的压力方面的效果,本研究进行了研究:结果:我们的研究结果表明,经纳米银颗粒处理的芹菜植物的多个生长参数、脯氨酸含量、叶绿素 a、叶绿素 b、总叶绿素和类胡萝卜素均有所下降。这种下降可归因于植物中存在的纳米银粒子诱发的氧化应激。相反,当使用冕宁处理时,它能有效缓解纳米银粒子引起的生长参数和色素的减少。此外,我们还观察到暴露于纳米银粒子的植物的根部和芽部的银含量都有所增加,同时丙二醛(MDA)含量、过氧化氢(H2O2)、花青素、谷胱甘肽(GSH)和抗氧化酶活性的水平也有所提高。同时,总酚类化合物、抗坏血酸、花青素和脯氨酸含量也有所下降。用冕宁对芹菜种子进行预处理后,GSH、总酚类化合物和脯氨酸含量增加,同时植物根部和芽部的银含量降低:冕宁碱预处理似乎能提高酶和非酶抗氧化活性,从而减轻氧化应激,改善对纳米银颗粒诱导的应激反应。
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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来源期刊
Botanical Studies
Botanical Studies 生物-植物科学
CiteScore
5.50
自引率
2.90%
发文量
32
审稿时长
2.4 months
期刊介绍: Botanical Studies is an open access journal that encompasses all aspects of botany, including but not limited to taxonomy, morphology, development, genetics, evolution, reproduction, systematics, and biodiversity of all plant groups, algae, and fungi. The journal is affiliated with the Institute of Plant and Microbial Biology, Academia Sinica, Taiwan.
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