Effects of Different Light Intensities on the Growth and Photosynthesis of Symplocos tetragona Seedlings

doi:10.7525/j.issn.1673-5102.2017.04.011

Abstract

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

CLC Number:

Q949.775.4

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.

References

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]	Kenian LINGHU, Shu WANG. Responses of Biomass Allocation to Population Density and Soil Water in Abutilon theophrasti at Different Growth Stages [J]. Bulletin of Botanical Research, 2023, 43(2): 272-280.
[2]	Chunyan WEI, Yueling LI, Zexin JIN, Guangyu LUO, Chao CHEN, Fangquan SHAN. Effects of Shading on Photosynthetic Characteristics and Non-structural Carbohydrate Content of Heptacodium miconioides Seedlings [J]. Bulletin of Botanical Research, 2022, 42(6): 1096-1105.
[3]	Shanshan ZHANG, Chunming YUAN. Effects of Soil Moisture and Light Intensity on Growth and Photosynthetic Characteristics of Pterospermum kingtungense Seedlings [J]. Bulletin of Botanical Research, 2022, 42(3): 502-511.
[4]	Hong-Yi ZHAO, Jue-Lan GUAN, Xue-Yuan ZHANG, Qing LIANG, Jian ZHANG, Hong-Ling HU. Photosynthetic Characteristics of Sassafras tzumu under Cadmium Stress in Soil [J]. Bulletin of Botanical Research, 2021, 41(4): 506-513.
[5]	SHANG Kan-Kan, ZHANG Xi-Jin, SONG Kun. Variation of Stem-leaf Size Relationship of Woody Plants among Different LifeForms in Shanghai Chenshan Botanical Garden [J]. Bulletin of Botanical Research, 2020, 40(5): 641-647.
[6]	WU Jian-Hui, FAN Wei-Fang, NIU Zhe, ZHANG Jing, GAO Peng-Fei, LI Wen. Effects of Exogenous Methyl Jasmonate on Photosynthesis and Physiological Characteristics of Scutellaria regeliana under Drought Stress [J]. Bulletin of Botanical Research, 2020, 40(3): 360-367.
[7]	QIAO Bin-Jie, WANG De-Qiu, GAO Hai-Yan, LI Zhao-Min, GE Li-Li, DING Wen-Ya, ZHAO Xi-Yang. Photosynthetic and Stomatal Morphological Variation of Poplar Clones in Seedling Stage under Drought Stress [J]. Bulletin of Botanical Research, 2020, 40(2): 177-188.
[8]	HU Ju-Wei, DAI Xin, SONG Tao, SUN Guang-Yu. Effects of Different Light Qualities on Growth and Photosynthetic Characteristics of Mulberry Seedlings [J]. Bulletin of Botanical Research, 2019, 39(4): 481-489.
[9]	WAN Xue-Bing, WANG Qing-Gui, YAN Guo-Yong, XING Ya-Juan. Response of Ecological Stoichiometric Characteristics and Photosynthetic Characteristics of Plant Leaves to Long-term N Deposition in Natural Secondary Forest [J]. Bulletin of Botanical Research, 2019, 39(3): 407-420.
[10]	XU Hai-Jun, CHENG Xin-Yu, WANG Xiao-Fei, GUAN Xiang-Jun. Effects of Different Nitrogen Level on Growths of Moringa oleifera Seedling under Northern Facilities of China [J]. Bulletin of Botanical Research, 2019, 39(1): 54-60.
[11]	LI Na, MU Xiao-Qian, LEI Qiong. Preliminary Study on the Influence of environmental Conditions on Distribution characteristics and Morphogenesis of Purple Idioblasts in Datura stramonium L. var.tatula Torrey [J]. Bulletin of Botanical Research, 2018, 38(4): 575-582.
[12]	MA Han-Ze, WANG Cheng-Zhong, LI Ding, FAN Guo-Zhen, HU Yong-Hong, SONG Zhi-Ping. Effects of Growth Environment and Tree Age on Biomass Allocation within Fruit Twigs of Fengdan(Paeonia ostii) [J]. Bulletin of Botanical Research, 2018, 38(2): 201-211.
[13]	YIN Dong-Sheng, SHEN Hai-Long, WEI Xiao-Hui. Effects of Shading on Physocarpus amurensis Seedlings Photosynthetic Ability and Carbohydrate Accumulation [J]. Bulletin of Botanical Research, 2017, 37(6): 841-847.
[14]	GUO Hai-Xia, XU Bo, SHI Fu-Sun, WU Yan. Effects of Shading and Nitrogen Addition on the Growth and C-N Balance of Fritillaria unibracteata [J]. Bulletin of Botanical Research, 2017, 37(5): 738-743.
[15]	LI Xin-Yan, TENG Zhi-Yuan, XU Qi-Jiang, ZHANG Hui-Hui, ZHENG Bao-Jiang. Effects of Shading on Anatomical Structure and Photosynthetic Characteristics of Ribes nigrum L. Leaves [J]. Bulletin of Botanical Research, 2017, 37(4): 521-528.