缺水条件下叶面喷施辅助素对葡萄树(Vitis vinifera)某些生长、生化和解剖指标的影响。

IF 2.6 4区 生物学 Q2 PLANT SCIENCES Functional Plant Biology Pub Date : 2024-10-01 DOI:10.1071/FP24059
Yaser Khandani, Hassan Sarikhani, Mansour Gholami, Abdolkarim Chehregani Rad, Siamak Shirani Bidabadi
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引用次数: 0

摘要

干旱引起的胁迫是影响葡萄树(Vitis vinifera)生长发育、产量和果实特性的最具经济损失的自然现象之一。此外,辅助素也是最重要的植物生长调节剂之一,可以减轻胁迫对植物造成的伤害。本研究调查了外源喷洒的辅助素(0、50 和 200mgL-1 )对缺水条件下两个葡萄品种("Rashe "和 "Fakhri")的生长、生化和解剖参数的影响。根据我们的研究结果,缺水导致生长、蛋白质含量和解剖参数明显下降,但电解质渗漏却显著增加。在缺水条件下,葡萄的总酚类化合物和抗氧化活性大幅增加。施用 50mgL-1 的萘乙酸(NAA)可减少电解质渗漏('Rashe'为 15%,'Fakhri'为 20%),增加蛋白质含量('Rashe'为 22%,'Fakhri'为 32%)、总酚化合物含量('Rashe'为 33%,'Fakhri'为 40%)和抗氧化能力('Rashe'为 11%,'Fakhri'为 39%);反常参数也有所改善。然而,施用 200mgL-1 NAA 会对葡萄树的生长和生化性状产生不利影响,与其他 NAA 浓度相比,对根系生长和解剖参数的影响更为明显。总之,施用 50mgL-1 NAA 能促进葡萄树的生长,使其在缺水条件下更好地茁壮成长。
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Alteration in certain growth, biochemical, and anatomical indices of grapevine (Vitis vinifera) in response to the foliar application of auxin under water deficit.

Drought-induced stress represents one of the most economically detrimental natural phenomena impacting grapevine (Vitis vinifera ) development, yield, and fruit characteristics. Also, auxin is one of the most important plant growth regulators that can reduce damage caused by stress in plants. In this study, the impact of exogenously sprayed auxin (0, 50, and 200mgL-1 ) on growth, biochemical, and anatomical parameters was investigated in two grapevine varieties (cvs. 'Rashe' and 'Fakhri') under water deficit. According to our findings, water deficit led to a notable decrease in growth, protein content, and anatomical parameters; but significantly enhanced electrolyte leakage. Grapevines exposed to water deficit exhibited substantial increases in total phenolic compounds and antioxidant activity. Applying 50mgL-1 napthalene acetic acid (NAA) reduced the effects of water deficit in both grapevine cultivars by decreasing electrolyte leakage (15% in 'Rashe' and 20% in 'Fakhri'), and accumulating protein content (22% 'Rashe' and 32% 'Fakhri'), total phenolic compounds (33%'Rashe' and 40% 'Fakhri'), and antioxidant capacity (11% 'Rashe' and 39% 'Fakhri'); anantomical parameters were also improved. However, application of 200mgL-1 NAA had adverse effects on growth and biochemical traits of grapevines, with a more pronounced impact on root growth and anatomical parameters compared to other NAA concentrations. In conclusion, the application of 50mgL-1 NAA enhanced grapevine growth, enabling them to better thrive under water deficit.

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来源期刊
Functional Plant Biology
Functional Plant Biology 生物-植物科学
CiteScore
5.50
自引率
3.30%
发文量
156
审稿时长
1 months
期刊介绍: Functional Plant Biology (formerly known as Australian Journal of Plant Physiology) publishes papers of a broad interest that advance our knowledge on mechanisms by which plants operate and interact with environment. Of specific interest are mechanisms and signal transduction pathways by which plants adapt to extreme environmental conditions such as high and low temperatures, drought, flooding, salinity, pathogens, and other major abiotic and biotic stress factors. FPB also encourages papers on emerging concepts and new tools in plant biology, and studies on the following functional areas encompassing work from the molecular through whole plant to community scale. FPB does not publish merely phenomenological observations or findings of merely applied significance. Functional Plant Biology is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science. Functional Plant Biology is published in affiliation with the Federation of European Societies of Plant Biology and in Australia, is associated with the Australian Society of Plant Scientists and the New Zealand Society of Plant Biologists.
期刊最新文献
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