夏蜡梅叶片结构对不同光强生境的响应
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- 英文论文题名：Response of Leaf Structure of Sinocalycanthus chinensis to Ecological Environments with Different Light Irradiations
- 论文作者：张超 ; 付建新 ; 周莉花 ; 赵宏波
- 英文论文作者：ZHANG Chao ; FU Jian-xin ; ZHOU Li-hua ; ZHAO Hong-bo ; School of Landscape Architecture ; Zhejiang A & F University
- 年：2016
- 作者机构：浙江农林大学风景园林与建筑学院;
- 论文关键词：夏蜡梅 ; 叶片 ; 光强 ; 适应性 ; 解剖结构
- 英文论文关键词：Sinocalycanthus chinensis ; Leaf ; Light irradiation ; Adaptation ; Anatomical structure
- 会议召开时间：2016-07-19
- 会议录名称：中国观赏园艺研究进展2016
- 语种：中文
- 分类号：S685.99
- 学会代码：EGYP
- 会议名称：2016年中国观赏园艺学术研讨会
- 会议地点：中国湖南长沙
- 主办单位：中国园艺学会观赏园艺专业委员会、国家花卉工程技术研究中心
- 学会名称：中国园艺学会
- 页数：4
- 文件大小：754k
- 原文格式：O
- 会议级别：全国
摘要
为明确夏蜡梅Sinocalycanthus chinensis(Cheng et S.Y.Chang)Cheng et S.Y.Chang对光照的适应性,筛选合适的生长光照条件,本研究选择4个不同光照生境样地中的夏蜡梅为试验材料,对其叶片解剖结构进行观察和分析。结果表明,光照最强的样地中叶片厚度最大,而光照较弱的样地中叶片厚度较小,夏蜡梅叶片厚度与光照强度正相关;叶片厚度的变化主要表现为栅栏组织厚度的变化,上、下表皮厚度与海绵组织厚度不变。此外,维管组织厚度在强光下变大,而弱光下变小。从夏蜡梅叶片结构对光照的响应可以看出,在一定的光照强度范围内其具有调节叶片结构提高光合利用率的能力;因此,在今后夏蜡梅的种群保护中,应加以一定的人工干预,营造适生生境。
In order to understand the adaptation of Sinocalycanthus chinensis to different light irradiations and select the suitable light condition for growth,in this study,plants of Sinocalycanthus chinensis in four sampling plots with different light conditions were chosen as materials to observe and analyze their leaf anatomical structures.Results showed that leaf thickness was the highest in the sampling plot with the greatest light irradiation,and that was lower in the sampling plot with lower light irradiation,which suggests that the positive correlation was between leaf thickness and light irradiation.The change of leaf thickness mainly depended on the change of the thickness of palisade parenchyma layer,but the thickness of upper epidermis,lower epidermis and spongy parenchyma layer stayed the same in four light irradiations.What' s more,the thickness of vascular bundle of midrib increased in the high light condition,but decreased in the lower light condition.Based on the response of leaf structure of S.chinensis to different light irradiations,it is revealed that S.chinensis possess ability to regulate leaf structure to improve photosynthetic efficiency under a certain range of light irradiation.Therefore,from now on,in the population protection of S.chinensis,certain human interventions should be employed to build suitable habitats for living.
In order to understand the adaptation of Sinocalycanthus chinensis to different light irradiations and select the suitable light condition for growth,in this study,plants of Sinocalycanthus chinensis in four sampling plots with different light conditions were chosen as materials to observe and analyze their leaf anatomical structures.Results showed that leaf thickness was the highest in the sampling plot with the greatest light irradiation,and that was lower in the sampling plot with lower light irradiation,which suggests that the positive correlation was between leaf thickness and light irradiation.The change of leaf thickness mainly depended on the change of the thickness of palisade parenchyma layer,but the thickness of upper epidermis,lower epidermis and spongy parenchyma layer stayed the same in four light irradiations.What' s more,the thickness of vascular bundle of midrib increased in the high light condition,but decreased in the lower light condition.Based on the response of leaf structure of S.chinensis to different light irradiations,it is revealed that S.chinensis possess ability to regulate leaf structure to improve photosynthetic efficiency under a certain range of light irradiation.Therefore,from now on,in the population protection of S.chinensis,certain human interventions should be employed to build suitable habitats for living.
引文
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2.Bailey S,Walters R G,Jansson S,Horton P.Acclimation of Arabidopsis thaliana to the light environment;the existence of separate low light and high light responses[J].Planta,2001,213(5):794-801.
3.Ball M C,Critchley C.Photosynthetic responses to irradiance by the grey mangrove,Avicennia marina,grown under different light regimes[J].Plant Physiology,1982,70(4):1101-1106.
4.Chabot B F,Chabot J F.Effects of light and temperature on leaf anatomy and photosynthesis in Fragaria vesca[J].Oecologia,1977,26(4):363-377.
5.陈模舜,柯世省.生长环境光强对夏蜡梅子叶显微形态结构和光合参数的影响[J].广西植物,2009,29(3):366-371.
6.Gregoriou K,Pontikis K,Vemmos S.Effects of reduced irradiance on leaf morphology,photosynthetic capacity,and fruit yield in olive(Olea europaea L.)[J].Photosynthetica,2007,45(2):172-181.
7.He C X,UJY,Zhou P,Guo M,Zheng Q S.Changes of leaf morphological,anatomical structure and carbon isotope ratio with the height of the Wangtian Tree(Parashorea chinensis)in Xishuangbanna,China[J].Journal of Integrative Plant Biology,2008,50(2):168-173.
8.Huang D,Wu L,Chen J R,Dong L Morphological plasticity,photosynthesis and chlorophyll fluorescence of Athyrium pachyphlebium at different shade levels[J].Photosynthetica,2011,49(4):611-618.
9.Kim S J,Yu D J,Kim T C,Lee H J.Growth and photosynthetic characteristics of blueberry(Vaccinium corymbosum cv.Bluecrop)under various shade levels[J].Scientia Horticulturae,2011,129(3):486-492.
10.李芳兰,包维楷.植物叶片形态解剖结构对环境变化的响应与适应[J].植物学报,2005,22(s1):118-127.
11.李正理.植物制片技术[M].北京:科学出版社,1998.
12.刘华红,周莉花,黄耀辉,等.群落演替对夏蜡梅种群分布和数量的影响[J].生态学报,2016,36(3):620-628.
13.王勋陵,王静.植物形态结构与环境[M].兰州:兰州大学出版社,1989.
14.徐耀良,张若蕙,周骋.夏蜡梅的群落学研究[J].浙江林学院学报,1997,14(4):355-362.
15.Yang S J,Sun M,Zhang Y J,Cochard H,Cao K F.Strong leaf morphological,anatomical,and physiological responses of a subtropical woody bamboo(Sinarundinaria nitida)to contrasting light environments[J].Plant Ecology,2014,215(1):97-109.
16.张若蕙,刘洪谔.世界蜡梅[M].北京:中国科学技术出版社,1998.
17.章绍尧,毛宗国.夏腊梅.见:傅立国,金鉴明(主编),中国保护植物红皮书[M].北京:科学出版社,1992.
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