补充褪黑素可通过改善光合作用、根系形态特征和抗氧化防御系统来缓解桃(Prunus persica)幼苗的干旱胁迫

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Shahid Iqbal, Faisal Hayat, Mujahid Hussain, Naveed Mushtaq, Muneer Rehman, Alaiha Asif, Ummara Khan, Muhammad Adnan Shahid
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引用次数: 0

摘要

植物产量和生产率正受到全球气候变化的严重影响。由于缺水是农业未来的主要风险之一,因此开发能够承受水胁迫的植物至关重要。桃子是研究植物如何应对干旱胁迫的重要水果作物,干旱胁迫会造成产量和质量损失,从而降低作物的产量。褪黑激素是一种多用途、有益的压力缓解激素,可用于改变植物应对环境压力的方式。目前的调查研究了褪黑激素如何提高早期桃苗对干旱胁迫的抵抗力。我们的研究结果表明,在干旱胁迫下,植物生物量和光合作用活性显著下降,氧化损伤增加。施用褪黑素可提高光合作用活性和叶绿素含量,从而促进植物生长并减少氧化损伤。褪黑激素还能增加可溶性糖和脯氨酸含量。此外,桃幼苗中的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)和抗坏血酸过氧化物酶(APX)的活性也有所提高。根据我们的研究结果,褪黑素浓度为 100 µM 时,对提高干旱胁迫下植物的存活率效果最好,有助于开发一种实用的方法,用于干旱胁迫条件下的桃子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Melatonin supplementation alleviates drought stress in peach (Prunus persica) seedlings by improving photosynthesis, root morphological traits, and antioxidant defense system

Melatonin supplementation alleviates drought stress in peach (Prunus persica) seedlings by improving photosynthesis, root morphological traits, and antioxidant defense system

Plant yield and productivity are being impacted significantly by global climate change. Since water scarcity is one of the main risks to agriculture's future, developing plants that can withstand water stress is crucial. The peach is an essential fruit crop for examining how plants respond to drought stress, which lowers crop performance through yield and quality losses. Melatonin, a versatile, beneficial stress-relieving hormone, can be used to alter how plants respond to environmental stresses. The current investigation examined how melatonin may improve early peach seedlings' resistance to drought stress. Our findings revealed a significant decrease in plant biomass and photosynthetic activity and increased oxidative damage under drought stress. Melatonin application promotes plant development and reduces oxidative damage by increasing photosynthetic activity and chlorophyll contents. Melatonin also increases soluble sugars and proline contents. Furthermore, an increase in the activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and ascorbate peroxidase (APX) was also recorded in peach seedlings. According to the results of our investigation, melatonin applied at a concentration of 100 µM had the highest effect on increasing plant survival under drought stress and contributed to the development of a practical approach for peaches under drought stress conditions.

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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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