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首页> 外文期刊>African Journal of Biotechnology >Screening of drought oxidative stress tolerance in Serbian melliferous plant species
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Screening of drought oxidative stress tolerance in Serbian melliferous plant species

机译：塞尔维亚有叶植物抗旱性氧化胁迫的筛选

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This study was designed to examine and compare antioxidant and free-radical scavenging activities of leaves of six different melliferous plant species?(Populus alba, Robinia pseudoacacia, Sophora japonica,?Euodia hupehensis,?Tilia?sp.,Fraxinus?sp.)?from Serbia in order to evaluate their drought oxidative stress tolerance.?Experiment was conducted during June, July and August. In this study, we reported the results concerning proline accumulation, soluble protein content, quantities of malonyldialdehyde, total antioxidant capacity determined by FRAP method and scavenger activity determined by DPPH method. According to our results, all melliferous plant species were subjected to drought oxidative stress during July when soil humidity decreased. During July, proline content and MDA quantity increased and soluble proteins decreased in all investigated species. High and permanent antioxidant activity during the whole investigated period was observed in?P. alba, but insufficient to protect its leaves from oxidative injury during the period of drought in July. The highest ability to accumulate proline and highest protein content under severe drought stress in July was observed in?Fraxinus sp. Other investigated antioxidant parameters (total antioxidant and DPPH radical scavenger capacities) were high and accumulation of MDA was low which indicate high drought oxidative stress tolerance. Therefore, highest ability to adapt under severe drought stress and highest drought oxidative stress tolerance were observed in?Fraxinus?sp.
机译：这项研究旨在检查和比较六种不同的有叶植物的叶子的抗氧化和清除自由基的活性？（白杨，刺槐，槐花，平邑甜茶，T树属，水曲柳属）。为了评估其对干旱氧化胁迫的耐受性，来自塞尔维亚。实验于六月，七月和八月进行。在这项研究中，我们报告了有关脯氨酸积累，可溶性蛋白含量，丙二醛二醛的量，通过FRAP方法测定的总抗氧化能力和通过DPPH方法测定的清除剂活性的结果。根据我们的研究结果，当土壤湿度降低时，所有有叶植物都在7月遭受了干旱氧化胁迫。在7月期间，所有调查物种的脯氨酸含量和MDA量均增加，可溶性蛋白质减少。在ΔP中观察到整个研究期间的高和永久性抗氧化剂活性。 ，但不足以保护其叶子在7月的干旱期间免受氧化伤害。在7月的水曲柳中，脯氨酸的积累能力最高，蛋白质含量最高。其他研究的抗氧化剂参数（总抗氧化剂和DPPH自由基清除剂容量）较高，而MDA的积累较低，这表明较高的干旱氧化胁迫耐受性。因此，在Fraxinus？sp中观察到了在严重干旱胁迫下的最高适应能力和最高的干旱氧化胁迫耐受性。

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