SHU Yu,GAO Tianhong.Study on Physiological Indicators Related to Leaf Color Changes of Acer tataricum subsp.ginnala in Autumn[J].HEILONGJIANG AGRICULTURAL SCIENCES,2025,(04):68-72.[doi:10.11942/j.issn1002-2767.2025.04.0068]
茶条槭秋季叶色变化相关生理性指标的研究
- Title:
- Study on Physiological Indicators Related to Leaf Color Changes of Acer tataricum subsp.ginnala in Autumn
- 文章编号:
- 11
- 文献标志码:
- A
- 摘要:
- 为了探究茶条槭秋季叶色变化的机理，对茶条槭在不同叶色时期的多项生理指标进行了系统研究，包括色素种类与含量、可溶性糖含量、可溶性蛋白含量、过氧化物酶（POD）活性、超氧化物歧化酶（SOD）活性、过氧化氢酶（CAT）活性、游离脯氨酸(Pro)含量及丙二醛(MDA)含量。结果表明，茶条槭叶色变化主要由花青素的大量积累引发，总花青素含量在叶色变化过程中显著增加，红色叶片的花青素含量是绿色叶片的4.31倍。随着叶色由绿转红，可溶性糖含量从2.54%增加至8.96%，可溶性蛋白含量从0.25 mg·g-1增加至0.35 mg·g-1。绿色叶片时期的POD、SOD和CAT活性分别为45.52，1 985.21和153.28 U·g-1；半红色叶片时期，这些酶活性显著提高，分别达到228.51，7 854.58和254.47 U·g-1；而在红色叶片时期，酶活性又有所下降，分别为105.86，514.25 和78.52 U·g-1。因此，建议在茶条槭的推广应用中，注重通过调控环境因素如光照、温度和土壤养分等，优化其生长条件，适当调节糖等营养元素的供应，增强茶条槭的叶色表现和抗逆性。
- Abstract:
- In order to investigate the mechanism behind the autumn leaf color change in Acer tataricum subsp. ginnala, this study systematically examined various physiological indices at different leaf color stages, including pigment types and contents, soluble sugar content, soluble protein content, peroxidase (POD) activity, superoxide dismutase (SOD) activity, catalase (CAT) activity, free proline content(Pro), and malondialdehyde (MDA) content. The results indicated that the leaf color change in Acer ginnala was primarily driven by the significant accumulation of anthocyanins, with the total anthocyanin content increasing substantially during the color change process. The anthocyanin content in red leaves was 4.31 times higher than in green leaves. As the leaf color changed from green to red, the soluble sugar content increased from 2.54% to 8.96%, and the soluble protein content rose from 0.25 mg·g-1 to 0.35 mg·g-1. During the green leaf stage, the activities of POD, SOD, and CAT were 45.52, 1 985.21, and 153.28 U·g-1, respectively. In the semi-red leaf stage, these enzyme activities increased significantly to 228.51, 7 854.58, and 254.47 U·g-1, respectively. However, in the red leaf stage, enzyme activities decreased to 105.86, 514.25, and 78.52 U·g-1, respectively. This change is considered a response strategy of the plant to external stress, likely related to temperature variations.Therefore, it is recommended that in the promotion and application of A. tataricum subsp.ginnala, emphasis should be placed on optimizing its growth conditions by regulating environmental factors such as light, temperature, and soil nutrients, while appropriately adjusting the supply of nutrients like sugars, to enhance the leaf color performance and stress resistance of A. tataricum subsp. ginnala.
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备注/Memo
收稿日期：2024-08-01