[1]王国霞,耿晓东,张娜,等. 秋冬季节泡桐顶芽形态及显微结构变化分析[J].西北林学院学报,2017,32(1):165-171.[doi:10.3969/j.issn.1001-7461.2017.01.26]
　WANG Guo-xia,GENG Xiao-dong,ZHANG Na,et al. Morphology and Microstructure Changes of Terminal Buds of Paulownia in Autumn and Winter[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(1):165-171.[doi:10.3969/j.issn.1001-7461.2017.01.26]
点击复制

 秋冬季节泡桐顶芽形态及显微结构变化分析()
分享到：

《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第1期
页码:
165-171
栏目:
出版日期:
2017-01-31

文章信息/Info

Title:
 Morphology and Microstructure Changes of Terminal Buds of Paulownia in Autumn and Winter
文章编号:
1001-7461(2017)01-0165-07
作者:
 王国霞1; 耿晓东2; 张娜3; 刘震2*; 关欣2; 刘瑞霞1; 田云芳1; 雒红宇1
 （1.郑州师范学院 生命科学学院，河南 郑州 450044；2.河南农业大学 林学院，河南 郑州 450002；3.天津市农业科学院，天津 300192）
Author(s):
 WANG Guo-xia1; GENG Xiao-dong2; ZHANG Na3; LIU Zhen2*; GUAN Xin2; LIU Rui-xia1; TIAN Yun-fang1; LUO Hong-yu1
 （1.School of Life Science,Zhengzhou Normal University,Zhengzhou,Henan 450044,China; 2.Forestry College,Henan Agricultural University,Zhengzhou,Henan 450002,China；3.Tianjin Academy of Agricultural Sciences,Tianjin 300192,China）
关键词:
 ; 泡桐; 顶芽; 石蜡切片; 形态; 显微结构
Keywords:
 ; Paulownia;  terminal bud;  paraffin section;  morphology;  microstructure
分类号:
S792.43
DOI:
10.3969/j.issn.1001-7461.2017.01.26
文献标志码:
A
摘要:
 为研究泡桐停止生长及顶芽死亡过程中顶芽形态结构的变化。以生长在郑州地区的1年生毛白33泡桐埋根苗为研究材料，8-12月份每隔10 d对泡桐顶芽的外部形态变化进行观察，同时制备顶芽石蜡切片进行显微结构分析。综合毛白33泡桐埋根苗顶芽外形变化和显微结构变化特征，可将该过程划分为4个阶段：1）顶芽分化生长期：9月上旬之前，顶芽细胞分化能力强，能不断分生出新叶。2）顶芽生长分化停止期：9月中旬至9月末，泡桐顶芽细胞壁稍厚，成熟区的维管形成层出现导管,顶芽已不再萌发新叶，顶芽颜色由浅绿色变为绿褐色。3）顶芽死亡发生期：10月上旬到11月上旬，顶芽分生区细胞间开始出现层状裂隙，伸长区的形成层已有导管，芽的木质化程度加深,顶芽颜色褐化程度加深，并有干瘪的趋势。4）顶芽死亡后期：11月中旬到12月中旬，细胞之间裂隙普遍，形成层中导管众多，大多数顶芽细胞已基本死亡。泡桐生长停止前后，泡桐顶芽并未形成芽鳞，之后顶芽细胞间开始出现层状间隙，细胞开始老化死亡，并随着时间推移而程度加深。从芽的形态结构变化分析来看，泡桐顶芽芽鳞的缺失是泡桐顶芽死亡的主要原因。
Abstract:
 In order to understand the changes of morphological structures of Paulownia terminal buds in the process of growth cessation and terminal bud’s death,the buried root seedlings of Paulownia tomentosa×Paulownia fortunei 33 which grew well in Zhengzhou area were used as research materials,the morphology of terminal buds were observed every 10 days from August to December,and the microstructures of terminal buds were analyzed by preparation of paraffin section of terminal bud at the same time.The process could be divided into four stages based on the changes of morphology and microstructures of terminal buds: 1) the period of growth and differentiation of terminal bud: until early September,the terminal buds had strong differentiation ability and could gradually put out fresh leaves.2) The period of stop growth and differentiation of terminal bud: from mid September to the end of September,the cell walls of terminal buds were slightly thick,vessels were formed in the vascular cambium of the mature region,the terminal buds could not sprout fresh leaves and its color changed from light green to greenish brown.3) The period of death occurrence of terminal bud: from early October to early November,lamellar gap began to appear among cells in meristematic zone,vessels were formed in the cambium of the elongation zone,the lignification degree of buds was deepened,the terminal buds didt enlarge and became shriveled with the browning level increasing.4) The late period of death of terminal bud: from mid November to mid December,most cell walls of meristematic zone ruptured and cytoplasm exosmosis,the nucleus of a few cells were visible and resided in the side of the cell,lamellar gap existed among cells widely,there were many vessels in the cambium of the elongation zone,most cells of terminal bud were basically dead.The terminal buds of Paulownia did not form bud scale before and after stop growing,then lamellar gap began to appear among cells of terminal buds,cells began to aging and dying,and the level of aging and death became more serious with the course of time.Lack of bud scales was the major cause of the terminal bud’s death based on the analysis the morphological changes of buds.

相似文献/References:

[1]杨俊秀,张刚龙,樊军锋,等.泡桐丛枝病与泡桐生长量的关系[J].西北林学院学报,2007,22(02):109.
　YANG Jun-xiu,ZHANG Gang-long,FAN Jun-feng,et al.Relationship between the Witches Broom and the Growth of Paulownia[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(1):109.
[2]胡伟华,常德龙,黄文豪,等.稀碱液对泡桐木防变色作用的研究[J].西北林学院学报,1999,14(02):0.
　Hu Weihua,Chang Delong,Huang Wenhao,et al.Effects of Alkaline Solution on Prevention Discoloration of Paulownia Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,1999,14(1):0.
[3]张刚龙,王培新,李有忠,等.泡桐辐射诱变抗病性选择[J].西北林学院学报,2006,21(06):130.
　ZHANG Ganglong,WANG Peixin,LI Youzhong,et al.Disease Resistance Selection through Radiomutagenesis to the Paulownia[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2006,21(1):130.
[4]李亚藏,梁彦兰,王庆成. 铅对山梨和山荆子光合作用和叶绿素荧光特性的影响[J].西北林学院学报,2012,27(05):21.
　LI Ya-cang,LIANG Yan-lan,WANG Qing-cheng. Influence of Pb on Photosynthesis and Chlorophyll Fluorescence Characteristics in Pyrus ussuriensis and Malus baccata [J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(1):21.
[5]张小咏,李佳,杨艳昭,等. 基于SWAT模型的长江源区径流模拟[J].西北林学院学报,2012,27(05):38.
　ZHANG Xiao-yong,LI Jia,YANG Yan-zhao,et al. Runoff Simulation of the Catchment of the Headwaters of the Yangtze River Based on SWAT Model[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(1):38.
[6]杨红旗,陈广辉,王金林. PVAc改性酚醛树脂制备铝木复合材料研究[J].西北林学院学报,2013,28(01):170.[doi:10.3969/j.issn.1001-7461.2013.01.34]
　YANG Hong-qi,CHEN Guang-hui,WANG Jin-lin. PF Adhesive Modified by PVAc for Manufacturing Technology of Decorative Fiberboard with Aluminum Foils[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(1):170.[doi:10.3969/j.issn.1001-7461.2013.01.34]
[7]江涛,李秀荣,谢延军,等. 微波预处理对巨尾桉木材渗透性的影响[J].西北林学院学报,2013,28(01):174.[doi:10.3969/j.issn.1001-7461.2013.01.35]
　JIANG Tao,LI Xiu-rong,XIE Yan-jun,et al. Effects of Microwave Pretreatment on the Permeability of Eucalyptus grandis×Eucalyptus urophylla[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(1):174.[doi:10.3969/j.issn.1001-7461.2013.01.35]
[8]牛晓霆,王逢瑚,曹新民. 明清家具匠师原木下料的工艺原则及措施[J].西北林学院学报,2013,28(01):178.[doi:10.3969/j.issn.1001-7461.2013.01.36]
　NIU Xiao-ting,WANG Feng-hu,CAO Xin-min. Techniques and Principles of Log Cuttings of Furniture Makers in Ming and Qing Dynasties[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(1):178.[doi:10.3969/j.issn.1001-7461.2013.01.36]
[9]吕金阳,覃卓凯,舒辉,等. 银杉木材构造美学价值[J].西北林学院学报,2013,28(01):183.[doi:10.3969/j.issn.1001-7461.2013.01.37]
　LV Jin-yang,QIN Zhuo-kai,SHU Hui,et al. Esthetical Values in Wood Structure of Cathaya argyrophylla[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(1):183.[doi:10.3969/j.issn.1001-7461.2013.01.37]
[10]杨艳红,张海敏,孙景荣. 基于传统文化视角的现代家具设计探析[J].西北林学院学报,2013,28(01):188.[doi:10.3969/j.issn.1001-7461.2013.01.38]
　YANG Yan-hong,ZHANG Hai-min,SUN Jing-rong. Study of Modern Furniture Design Based on Traditional Culture[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(1):188.[doi:10.3969/j.issn.1001-7461.2013.01.38]

备注/Memo

备注/Memo:
 收稿日期：2016-05-06修回日期：2016-06-29
基金项目：教育部博士点基金项目(200804660002)；河南省杰出青年基金项目(002)；河南省高等学校青年骨干教师资助项目(2014GGJS-147)。
作者简介：王国霞，女，博士，副教授，研究方向：森林培育。E-mail：wgxia1919@sina.com
*通信作者：刘震，男，教授，博士生导师，研究方向：森林培育与林木生理生态机理研究。E-mail：liuzh20@163.com
更新日期/Last Update: