褪黑素处理减少番石榴采后冷害的研究

Q3 Agricultural and Biological Sciences
A. Mirshekari, B. Madani
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引用次数: 1

摘要

番石榴是一种热带水果,因此对冷害很敏感。在本研究中,评估了褪黑激素(已知可保护膜完整性并有助于应对非生物和生物胁迫)在减少采后冷害方面的作用。将番石榴果实分别浸泡在10、100和1000μmol L-1褪黑素溶液中,然后冷藏(10±1°C和90%相对湿度)21天。处理后测定了冷害、丙二醛含量、电解质渗漏、总酚类化合物增加、抗氧化活性、磷脂酶D和脂氧合酶活性等参数。在储存期间每7天进行一次测量。结果表明,与对照组相比,褪黑素降低了冷害、丙二醛含量、电解质渗漏,并增加了总酚类化合物和抗氧化活性。此外,研究结果表明,褪黑素通过提高膜的完整性、降低磷脂酶D和脂氧合酶活性来降低番石榴果实的冷害。因此,褪黑激素可以作为一种有效的治疗方法来减少番石榴果实采后的低温障碍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Decreasing postharvest chilling injury of guava fruit by using melatonin treatment
Guava fruit is a tropical fruit thus sensitive to the chilling injury. In this study the effects of melatonin (known to protect membrane integrity and to help to face abiotic and biotic stress) is evaluated for reduction of chilling injury during postharvest. Guava fruits were dipped into 10, 100 and 1000 μmol L-1 melatonin solutions, then kept at cold storage (10±1°C and 90% relative humidity) for 21 days. Several parameters including chilling injury, malondialdehyde content, electrolyte leakage and increased total phenolic compounds and antioxidant activity, phospholipase D and lipoxygenase activity were measured after treatment. Measurements were made every 7 days during the storage. Results showed that melatonin decreased chilling injury, malondialdehyde content, electrolyte leakage and increased total phenolic compounds and antioxidant activity compared to the control. Also, results indicated that chilling injury of guava fruit by using melatonin decreased through increasing integrity of membrane and reducing phospholipase D and lipoxygenase activity. Thus, melatonin can be a useful treatment for decreasing postharvest chilling disorder of guava fruit.
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来源期刊
Advances in horticultural science
Advances in horticultural science Agricultural and Biological Sciences-Horticulture
CiteScore
1.20
自引率
0.00%
发文量
15
审稿时长
12 weeks
期刊介绍: Advances in Horticultural Science aims to provide a forum for original investigations in horticulture, viticulture and oliviculture. The journal publishes fully refereed papers which cover applied and theoretical approaches to the most recent studies of all areas of horticulture - fruit growing, vegetable growing, viticulture, floriculture, medicinal plants, ornamental gardening, garden and landscape architecture, in temperate, subtropical and tropical regions. Papers on horticultural aspects of agronomic, breeding, biotechnology, entomology, irrigation and plant stress physiology, plant nutrition, plant protection, plant pathology, and pre and post harvest physiology, are also welcomed. The journal scope is the promotion of a sustainable increase of the quantity and quality of horticultural products and the transfer of the new knowledge in the field. Papers should report original research, should be methodologically sound and of relevance to the international scientific community. AHS publishes three types of manuscripts: Full-length - short note - review papers. Papers are published in English.
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