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CO2浓度升高对宁夏枸杞不同器官中生物活性物质含量的影响
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引用本文:马 冲,马亚平,冯学瑞,曹 兵,朱金忠,亢彦东.CO2浓度升高对宁夏枸杞不同器官中生物活性物质含量的影响[J].西北农业学报,2024,(3):521~531
DOI:10.7606/j.issn.1004-1389.2024.03.014
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作者单位
马 冲,马亚平,冯学瑞,曹 兵,朱金忠,亢彦东 (1.宁夏大学 农学院银川 7500212.南京林业大学 林学院南京 2100373.宁夏中宁县杞鑫枸杞苗木专业合作社宁夏中宁 755100) 
基金项目:宁夏中宁县枸杞产业专项基金(20211201);国家自然科学基金(32160393,31660199)。
中文摘要:以两年生‘宁杞1号’‘宁杞7号’‘宁杞10号’扦插苗木为试验材料,探究大气CO2浓度升高对宁夏枸杞根、茎、叶、果中生物活性成分的影响,为气候变化背景下经济林品质形成及适应性栽培提供理论依据。结果表明:(1)大气CO2浓度升高处理下,‘宁杞1号’各器官总糖含量显著降低,枸杞多糖含量显著增加,秋果中总糖同比下降11.58%为229.75 mg·g-1,根中枸杞多糖较对照提高46.8 mg·g-1。(2)‘宁杞7号’与‘宁杞10号’根中各糖组分均显著下降,秋果中还原糖与总糖均显著升高,二者秋果中总糖分别升高 43.72%、39.36%,达到260.76、297.65 mg·g-1。(3)‘宁杞7号’茎和叶中类胡萝卜素含量显著下降,秋果中枸杞多糖含量显著上升24.66%,为28.72 mg·g-1;‘宁杞10号’叶中枸杞多糖和类胡萝卜素含量显著降低18.88%、15.72%,根和秋果中与之相反,根系中分别提高48.81%和34.12%,秋果中分别显著增加 8.00%、14.80%。研究发现,大气CO2浓度升高对不同宁夏枸杞品种不同器官中生物活性成分的影响不同,大气CO2浓度升高抑制‘宁杞1号’糖分的积累,促进其枸杞多糖的合成,也促进‘宁杞7号’秋果中生物活性物质的积累,提高‘宁杞10号’秋果的糖含量,‘宁杞10号’受大气CO2浓度升高的负面影响较小,‘宁杞7号’次之,在气候变化背景下可根据收获利用的目标器官筛选不同宁夏枸杞品种,进行定向培育与生产,从而促进枸杞产品开发及产业发展。
中文关键词:宁夏枸杞  CO2浓度倍增  生物活性物质含量
 
Effect of Increasing CO2 Concentration on Content of Bioactive Substances in Different Organs of Lycium barbarum L.
Abstract:In this study,two-year-old wolfberry cutting seedlings of ‘Ningqi 1’‘Ningqi 7’ and ‘Ningqi 10’ were used as experimental materials to investigate the effect of increasing atmospheric CO2 concentration on levels of bioactive components in roots,stems,leaves and fruits of Lycium barbarum.The objective was to establish a theoretical foundation for optimizing quality formation and adaptive cultivation of economic forest products in response to climate change.The results showed that with the increase of atmospheric CO2 concentration,the content of total sugar in all organs of ‘Ningqi 1’ decreased significantly,while the content of Lycium barbarum polysaccharides increased significantly.The total sugar in autumn fruit of ‘Ningqi 1’ decreased by 11.58% to 229.75 mg·g-1,and the content of Lycium barbarum polysaccharides in roots of ‘Ningqi 1’ increased by 46.8 mg·g-1 compared with the control.The sugar components in the roots of ‘Ningqi 7’ and ‘Ningqi 10’ decreased significantly,while the reducing sugar and total sugar in autumn fruit increased significantly,and the total sugar in autumn fruit of ‘Ningqi 7’ and ‘Ningqi 10’ increased by 43.72% and 39.36%,reaching 260.76 mg·g-1 and 297.65 mg·g-1,respectively;the content of carotenoids in stems and leaves of ‘Ningqi 7’ decreased significantly,while the Lycium barbarum polysaccharides content in autumn fruits of ‘Ningqi 7’ increased significantly by 24.66%,reaching 28.72 mg·g-1.In contrast,the contents of Lycium barbarum polysaccharides and carotenoids in leaves of ‘Ningqi 10’ decreased significantly by 18.88% and 15.72%,increased by 48.81%,34.12% in their roots ,and increased by 8.00% and 14.80% in autumn fruits,respectively.It was found that the increase of atmospheric CO2 concentration had different effects on bioactive components in different organs of different Lycium barbarum.The increase of atmospheric CO2 concentration inhibited the sugar accumulation of ‘Ningqi 1’,promoted the synthesis of its Lycium barbarum polysaccharides and the accumulation of bioactive substances in the autumn fruit of ‘Ningqi 7’,and increased the sugar content in the autumn fruit of ‘Ningqi 10’.Under the background of climate change,‘Ningqi 10’ exhibited the least negative effect from the rising atmospheric CO2 concentration,followd by ‘Ningqi 7’ .This suggests that different varieties of Lycium barbarum can be selectively cultivated to optimize production based on the target organs for harvest and utilization,thereby advancing the development of Lycium barbarum products and the industry.
keywords:Lycium barbarum  CO2 concentration doubling  Content of bioactive components
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