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[1]梁俊林,张晓蓉,唐实玉,等.光照强度对鸡爪槭叶色变化生理的影响[J].应用与环境生物学报,2020,26(03):597-602.[doi:10.19675/j.cnki.1006-687x.2019.08004]
 LIANG Junlin,ZHANG Xiaorong,TANG Shiyu,et al.Physiological effects of light intensity on leaf color change of Acer palmatum Thunb.[J].Chinese Journal of Applied & Environmental Biology,2020,26(03):597-602.[doi:10.19675/j.cnki.1006-687x.2019.08004]
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光照强度对鸡爪槭叶色变化生理的影响
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
26卷
期数:
2020年03期
页码:
597-602
栏目:
研究论文
出版日期:
2020-06-25

文章信息/Info

Title:
Physiological effects of light intensity on leaf color change of Acer palmatum Thunb.
作者:
梁俊林张晓蓉唐实玉张健徐振锋谭波刘洋
1长江上游林业生态工程四川省重点实验室,四川农业大学林学院生态林业研究所 成都 611130 2四川省阿坝藏族羌族自治州川西林业局 理县 623102
Author(s):
LIANG Junlin1 ZHANG Xiaorong2 TANG Shiyu1 ZHANG Jian1 XU Zhenfeng1 TAN Bo1 & LIU Yang1?
1 Key Laboratory of Ecological Forestry Engineering of Sichuan Province, Institute of Ecology & Forestry, Sichuan Agricultural University, Chengdu 611130, China 2 Sichuan West Forestry Bureau of Aba Tibetan and Qiang Autonomous Prefecture in Sichuan Province, Lixian 623102, China
关键词:
鸡爪槭色素内含物质光照强度
Keywords:
Acer palmatum Thunb. pigment enzyme inclusion light intensity
DOI:
10.19675/j.cnki.1006-687x.2019.08004
摘要:
光照强度会影响到植物叶片中色素合成、酶活性和内含物含量,光照强度的改变是否会影响鸡爪槭(Acer palmatum Thunb.)叶片颜色变化期的生理特征?探讨不同光照强度对鸡爪槭秋季叶片呈色效果的影响,可为彩叶树种引种栽培提供一定的理论依据. 采用不同遮荫的梯度处理,光照强度为自然光照100%(对照)、80%自然光照、50%自然光照,分析鸡爪槭叶片颜色转变过程中叶片色素、叶绿素酶(chlase)等酶活性和内含物质等生理指标. 结果显示,鸡爪槭叶片颜色转变过程中,叶绿素含量显著降低(P < 0.05),花色素苷(anthocyanin)含量显著增加,叶绿素酶活性显著增强,100%和50%的光照下苯丙氨酸解氨酶(PAL)活性显著降低,超氧化物歧化酶(SOD)先增强后降低. 80%、50%的光照强度下花色素苷的合成、丙二醛(MDA)的积累、叶绿素b(Chlb)和类胡萝卜素(Caro)含量显著低于对照,叶绿素a(Chla)、可溶性糖(SS)和脯氨酸(Pro)含量没有显著影响;光照强度处理对9月的叶绿素酶和PAL活性影响显著,对11月SOD和过氧化物酶(POD)活性影响显著,光照强度越弱,活性越强. 因此光照强度减弱延迟了鸡爪槭叶片变色,同时也缩短了彩叶期,影响了观赏效果,光照强度越弱影响越大. (图1 表2 参36)
Abstract:
Light intensity affects pigment synthesis, enzyme activity, and inclusion content of plant leaves. Thus, we determined whether the change in light intensity affects the physiological characteristics of Acer palmatum Thunb. leaves during their color change period. We studied the effect of different light intensities on the autumn leaf coloration of A. palmatum, which provided us with a theoretical basis for the introduction and cultivation of colored leaf trees. We used different light intensity gradients for treatments: natural light 100% (control), 80% natural light, and 50% natural light. The leaf pigment chlase and other enzymes and inclusion substances were analyzed during the color transition of A. palmatum Thunb. The chlorophyll content significantly decreased (P < 0.05) during the color transition of A. palmatum, and the anthocyanin content significantly increased, with no significant changes observed in soluble sugar (SS), proline (Pro), and malondialdehyde (MDA) contents. There was no significant change in soluble protein content and peroxidase (POD) activity (P > 0.05); however, the activity of chlase increased significantly. The activity of phenylalanine ammonialyase (PAL) decreased significantly under 100% and 50% illumination, and the superoxide dismutase (SOD) level first increased and then decreased. The synthesis of anthocyanins, the accumulation of MDA, and the contents of Chlb and Caro in A. palmatum subjected to 80% and 50% light intensity were significantly lower than those in control plants, and the contents of Chla, SS, and Pro did not significantly differ between treated plants and control plants. Treatment with lights had significant effects on chlorophyllase and PAL activity in September. Moreover, treatment had significant effects on the activity of SOD and POD in November, and the weaker the light intensity, the stronger the activity. The weakening of light intensity delayed the discoloration of the leaves of A. palmatum Thunb. and shortened the color leaf stage, which affected its ornamental effect.

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更新日期/Last Update: 2020-06-25