不同光强对棱角山矾幼苗生长及光合特性的影响

doi:10.7525/j.issn.1673-5102.2017.04.011

摘要/Abstract

摘要： 通过比较不同遮阴处理下棱角山矾幼苗生长及光合特性的差异，以探讨不同光强对棱角山矾生长及光合作用的影响及其适应机制。结果表明：棱角山矾幼苗的生物量分配对光强的反应敏感，在强光处理下，比叶面积减小，总叶面积变小；弱光处理下通过增大叶生物量比、叶面积比，支持结构生物量比，提高捕光能力。但L100、L30、L10处理下总生物量的积累显著小于L50处理，L30、L50、L100光强处理下总叶面积显著高于L10光强处理。并且10%和100%光强下棱角山矾叶片的最大净光合速率（P_max）、光饱和点（LSP）、表观量子效率（AQY）均显著低于30%和50%光强处理；而光补偿点（LCP）则随光强的增大而升高；总叶绿素和类胡萝卜素含量在10%~100%随着光强增大而显著降低（P<0.05）。说明棱角山矾幼苗在不同光环境下具有一定适应性，但过强或过弱的光环境均会对棱角山矾的生长产生负面影响，其中50%光强是棱角山矾幼苗生长的最佳光强；棱角山矾为中性树种，苗木适宜生长在荫蔽的环境下。

关键词: 棱角山矾, 光照强度, 生长动态, 生物量分配, 光合特性

Abstract: By measuring the effects of different shading on seedling morphology of Symplocos tetragona, we studied the response and adaptation mechanism of the growth and photosynthetic characteristics of S.tetragona to changes of light intensity in growth environment. The biomass of S.tetragona seedlings was sensitive to light intensity distribution, under light processing, the ratio of leaf area decreased, the total leaf area decreased. Under weak light treatment by increasing the leaf biomass ratio and leaf area ratio, the biomass ratio was support, and the light harvesting capacity was improved. However, total biomass accumulation under L100, L30, and L10 treatments was significantly less than that under L50 treatment, and total leaf area under L30, L50, L100 light intensity treatments was significantly higher than that under L10. The growth intensity significantly affected photosynthetic physiological parameters and photosynthetic pigment content of S.tetragona. At 10% and 100% light intensity, leaf maximum net photosynthetic rate(P_max), apparent quantum efficiency(AQY) and light saturation point(LSP) of S.tetragona were significantly lower than the condition of 30% and 50% light intensity, and the light compensation point(LCP) increased with the increase of light intensity. The total chlorophyll and carotenoid in 10% 100% were decreased significantly with the increase of light intensity(P<0.05). Too strong or too weak light environment has a negative impact on the growth of S.tetragona, of which 50% is the best light intensity for seedling growth of S.tetragona. S.tetragona is a neutral species, whose seedlings is suitable for slightly hidden conditions.

Key words: Symplocos tetragona, light intensity, growth dynamic, biomass allocation, photosynthetic characteristics

中图分类号:

Q949.775.4

舒文将, 柴胜丰, 黎兆海, 范进顺, 唐键民, 朱淑芳, 何志红. 不同光强对棱角山矾幼苗生长及光合特性的影响[J]. 植物研究, 2017, 37(4): 556-562.

SHU Wen-Jiang, CHAI Sheng-Feng, LI Zhao-Hai, FAN Jin-Shun, TANG Jian-Min, ZHU Shu-Fang, HE Zhi-Hong. Effects of Different Light Intensities on the Growth and Photosynthesis of Symplocos tetragona Seedlings[J]. Bulletin of Botanical Research, 2017, 37(4): 556-562.

参考文献

1. Buchanan B,Gruissen W,Jones R L. Biochemistry & molecular biology of plants[M]. Rockville:The American Society of Plant Physiologist,2000:2-50,260-310,568-628.
2. 柴胜丰,韦霄,史艳财,等. 强光胁迫对濒危植物金花茶(Camellia nitidissima)幼苗生长和叶绿素荧光参数的影响[J]. 植物研究,2012,32(2):159-164.Chai S F,Wei X,Shi Y C,et al. Effect of strong light stress on the growth,biomass and chlorophyll fluorescence farameters in feedlings of Camellia nitidissima[J]. Bulletin of Botanical Reasearch,2012,32(2):159-164.
3. 潘瑞炽. 植物生理学:7版[M]. 北京:高等教育出版社,2012.Pan R C. Plant physiology:7 ed[M]. Beijing:Higher Education Press,2012.
4. 李志真,刘东焕,赵世伟,等. 环境强光诱导玉簪叶片光抑制的机制[J]. 植物生态学报,2014,38(7):720-728.Li Z Z,Liu D H,Zhao S W,et al. Mechanisms of photoinhibition induced by high light in Hosta grown outdoors[J]. Chinese Journal of Plant Ecology,2014,38(7):720-728.
5. 敖金成,苏文华,张光飞,等. 对马耳蕨光合作用对生境光强增加的响应[J]. 西北植物学报,2010,30(11):2265-2271.Ao J C,Su W H,Zhang G F,et al. Photosynthetic Responses of an Sciophillic Fren Polystichum tsus-simense to Light Intensity Increasing[J]. Acta Bot Boreal-Occident Sin,2010,30(11):2265-2271.
6. 王瑞,丁爱萍,杜林峰,等. 遮荫对12种阴生园林植物光合特性的影响[J]. 华中农业大学学报,2010,29(3):369-374.Wang R,Ding A P,Lin L F,et al. Effects of shading on Photosynthetic Characteristics of 12 shade garden plants[J]. Journal of Huazhong Agricultural University,2010,29(3):369-374.
7. 陈秀华. 探究阴生植物对遮光环境的适应机制[J]. 生物学通报,2007,42(5):42-43.Chen X H. Study on the adaptation mechanism of shade plants to shading environment[J]. Journal of biology,2007,42(42-43).
8. 贺安娜,袁雅威,梁云浩,等. 自然强光对阴生植物虎耳草光合特性的影响[J]. 安徽农业科学,2010,38(27):14940-14941.He A N,Yuan Y W,Liang Y H,et al. Effects of Natural Light on Photosynthetic Characteristics of Saxifraga stolonifera[J]. Journal of Anhui Agricultural Sciences,2010,38(27):14940-14941.
9. 中国科学院中国植物志编辑委员会. 中国植物志:第60卷第2分册[M]. 北京:科学出版社,2004.Editorial Committee of flora of China,Chinese Academy of Sciences. Chinese Journal of flora:sixtieth volume[M]. Beijing:Science Press,2004.
10. Guan F,Peng H H,Zhang H B,et al. The function of greening Symplocos tetragona of ornamental characteristics and Transplanting Techniques[J]. Xiandai Horticulture,2010(12):6-7.
11. 朱碧华,黄宝祥,黄文超,等. 棱角山矾抗SO₂大气污染的机[J]. 林业技术开发,2009,23(5):57-59.Zhu B H,Huang B X,Huang W C,et al. Preliminary Studieson the Resistance Mechanism of Symplocos tetragona to SO₂ Pollutant[J]. Journal of Forestry Engineering,2009,23(5):57-59.
12. 刘曼. 棱角山矾扦插繁殖技术及其生根机理研究[D]. 南京:南京林业大学,2010.Liu M. Studies on the cutting propagating technology and rooting mechanism of Symplocos tetragona[D]. NanJing:Graduate school of NanJing Forestry University,2010.
13. 邱凤英,肖复明,戴小英,等. 棱角山矾扦插繁育试验技术研究[J]. 林业实用技术,2012(9):26-28.Qiu F Y,Xiao F M,Dai X Y,et al. Cuttage breeding research on test technology of Symplocos tetragona[J]. Practical forestry technology,2012(9):26-28.
14. 王满莲,蒋运生,韦霄,等. 槐树(Sophora japonica)幼苗对光强的形态和生理适应[J]. 东北林业大学学报,2012,40(5):13-15,21.Wang M L,Jiang Y S,Wei X,et al. Sophora japonica seedling morphological and physiological adaptation to light [J]. Journal of Northeast Forestry University,2012,40(5):13-15,21
15. Bassman J H,Zwier J C. Gas exchange characteristics of Populus trichocarpa,Populus deltoides and Populus trichocarpa×P. deltoides clones[J]. Tree Physiology,1991,8(2):145-159.
16. Cown D J. Wood density of Pinus caribaea var. hondurensis grown in Fiji[J]. New Zealand Journal of Forestry Science,1981,11(3):244-253.
17. Dere S,Günes T,Sivaci R. Spectrophotometric determination of chlorophyll-A,B and total carotenoid contents of some algae species using different solvents[J]. Turkish Journal of Botany,1998,22:13-17.
18. 蔡永萍. 植物生理学实验指导[M]. 北京:中国农业大学出版社,2014.Cai Y P. Experimental guide of plant physiology [M]. Beijing:China Agricultural University press,2014.
19. 周忆堂. 不同光强对长春花(Catharanthus roseus)光合作用及次生代谢的影响研究[D]. 重庆:西南大学,2008.Zhou Y T. Different light intensity on the Catharanthus roseus effects on photosynthesis and secondary metabolism[D]. Chongqing:Southwestern University,2008.
20. 张进忠,林桂珠,林植芳,等. 几种南亚热带木本植物光合作用对生长光强的响应[J]. 热带亚热带植物学报,2005,13(5):413-418.Zhang J Z,Lin G Z,Lin Z F. Response of photosynthesis to growth light intensity in some south subtropical woody plants[J]. Journal of Tropical and Subtropical Botany,2005,13(5):413-418.
21. 陈圣宾,宋爱琴,李振基. 森林幼苗更新对光环境异质性的响应研究进展[J]. 应用生态学报,2005,16(2):365-370.Chen S B,Song A Q,Li Z J. Advances in the response of forest seedling regeneration to the heterogeneity of light environment [J]. Chinese Journal of Applied Ecology,2005,16(2):365-370.
22. Poorter L. Growth responses of 15 rain-forest tree species to a light gradient:the relative importance of morphological and physiological traits[J]. Functional Ecology,1999,13(3):396-410.
23. 陶建平,钟章成. 光照对苦瓜(Momordica charantia)形态可塑性及生物量配置的影响[J]. 应用生态学报,2003,14(3):336-340.Tao J P,Zhong Z C. Effects of light on morphological plasticity and biomass allocation of Momordica charantia[J]. Journal of Applied Ecology,2003,14(3):336-40.
24. 张教林,曹坤芳. 光照对两种热带雨林树种幼苗光合能力、热耗散和抗氧化系统的影响[J]. 植物生态学报,2002,26(6):639-646.Zhang J L,Cao K F. The effect of irradiance on photosynthetic capacity,heatdissipation and antioxidants of seedlings of two tropical rain forest tree species[J]. Acta Phytoecologica Sinica,2002,26(5):639-646.
25. 米海莉,许兴,李树华,等. 水分胁迫对牛心朴子(Cynanchum hancockianum)、甘草(Glycyrrhiza uralensis)叶片色素、可溶性糖、淀粉含量及碳氮比的影响[J]. 西北植物学报,2004,24(10):1816-1821.Mi H L,Xu X,Li S H,et al. Effects of soil water stress on contents of chlorophyll,solublesugar,starch,C/N of two desert plants(Cynanchum komarovii and Glycyrrhiza uralensis)[J]. Acta Bot Boreal-Occident Sin,2004,24(10):1816-1821.
26. 张旺锋,樊大勇,谢宗强,等. 濒危植物银杉(Cathaya argyrophylla)幼树对生长光强的季节性光合响应[J]. 生物多样性,2005,13(5):387-397.Zhang W F,Fan D Y,Xie Z Q,et al. The seasonal photosynthetic responses of seedlings of the endangered plant Cathaya argyrophylla to different growth light environments[J]. Biodiversity Science,2005,13(5):387-397.
27. 齐欣,曹坤芳,冯玉龙. 热带雨林蒲桃属3个树种的幼苗光合作用对生长光强的适应[J]. 植物生态学报,2004,28(1):31-38.Qi X,Cao K F,Feng Y L. Photosynthetic acclimation to different growth light environments in seedlings of three tropical rainforest Syzygium species[J]. Acta Phytoecologica Sinica,2004,28(1):31-38.
28. Cai Z Q,Cao K F,Feng Y L,et al. Acclimation of foliar photosynthetic apparatus of three tropical woody species to growth irradiance[J]. Chinese Journal of Applied Ecology,2003,14(4):493-496.
29. 黄俊,郭世荣,吴震,等. 6个不结球白菜(Brassica rapa pekinensis)品种光合作用特性的研究[J]. 西北植物学报,2006,26(6):1183-1189.Huang J,Guo S R,Wu Z,et al. Photosynthetic characteristics of 6 heading Brassica rapa pekinensis[J]. Northwest Journal of Botany,2006,26(6):1183-1189.
30. Larcher W. Physiological plant Ecology:2nd ed[M]. Berlin:Spriger,1980.

[1]	令狐克念, 王姝. 不同生长阶段苘麻生物量分配对种群密度和土壤水分的响应[J]. 植物研究, 2023, 43(2): 272-280.
[2]	魏春燕, 李月灵, 金则新, 罗光宇, 陈超, 单方权. 遮荫对七子花幼苗光合特性和非结构性碳水化合物含量的影响[J]. 植物研究, 2022, 42(6): 1096-1105.
[3]	赵弘益, 管珏镧, 张雪媛, 梁清, 张健, 胡红玲. 土壤镉胁迫对檫木光合特性的影响[J]. 植物研究, 2021, 41(4): 506-513.
[4]	商侃侃, 张希金, 宋坤. 上海辰山植物园不同生活型木本植物枝叶大小关系的比较[J]. 植物研究, 2020, 40(5): 641-647.
[5]	吴建慧, 范卫芳, 牛喆, 张静, 高鹏飞, 李文. 外源茉莉酸甲酯对干旱胁迫下狭叶黄芩光合和生理特性的影响[J]. 植物研究, 2020, 40(3): 360-367.
[6]	乔滨杰, 王德秋, 高海燕, 李召珉, 葛丽丽, 丁文雅, 赵曦阳. 干旱胁迫下杨树无性系苗期光合与气孔形态变异研究[J]. 植物研究, 2020, 40(2): 177-188.
[7]	胡举伟, 代欣, 宋涛, 孙广玉. 不同光质对桑树幼苗生长和光合特性的影响[J]. 植物研究, 2019, 39(4): 481-489.
[8]	万雪冰, 王庆贵, 闫国永, 邢亚娟. 天然次生林植物叶片生态化学计量特征及光合特性对长期N沉降的响应[J]. 植物研究, 2019, 39(3): 407-420.
[9]	马菡泽, 汪成忠, 李鼎, 范国祯, 胡永红, 宋志平. 生长环境与株龄对凤丹当年生果枝的生物量分配的影响[J]. 植物研究, 2018, 38(2): 201-211.
[10]	殷东生, 沈海龙, 魏晓慧. 遮荫对风箱果幼苗光合能力和碳水化合物积累的影响[J]. 植物研究, 2017, 37(6): 841-847.
[11]	郭海霞, 徐波, 石福孙, 吴彦. 遮光和施氮对暗紫贝母生长和C-N平衡的影响[J]. 植物研究, 2017, 37(5): 738-743.
[12]	李芯妍, 滕志远, 徐启江, 张会慧, 郑宝江. 遮荫对黑茶藨子叶片形态结构和光合特性的影响[J]. 植物研究, 2017, 37(4): 521-528.
[13]	赵晶, 汪溪远. 古尔班通古特沙漠南缘3种生活型草本植物生物量分配及相关生长关系[J]. 植物研究, 2017, 37(2): 304-311.
[14]	闫小红, 周兵, 胡文海, 王宁, 尹增芳. 干旱胁迫对入侵种大狼把草及本地伴生种山莴苣叶片光合特性的影响[J]. 植物研究, 2016, 36(6): 931-941.
[15]	李雯；张程；王庆成；郝龙飞；刘爽. 指数施肥对白桦裸根苗生长动态、生物量分配及光合作用的影响[J]. 植物研究, 2015, 35(3): 391-396.