人工倾斜杨树应拉木内源激素分布规律的初步研究  

Preliminary study on distribution of endogenous hormones of the tension wood in artificially inclined Poplar

作　　者：余敏[1] 刘盛全[2] 檀华蓉[3] 

机构地区：[1]安徽农业大学生命科学学院,合肥230036 [2]安徽农业大学林学与园林学院,合肥230036 [3]安徽农业大学生物技术中心,合肥230036

出　　处：《安徽农业大学学报》2011年第6期877-881,共5页Journal of Anhui Agricultural University

基　　金：国家自然科学基金(30871972)资助;教育部新世纪优秀人才基金资助(NCET-07-0004)共同资助

摘　　要：采用高效毛细管电泳法(HPCE)来测定不同月份人工倾斜杨树树干形成层区域的5种内源激素即吲哚-3-乙酸(IAA)、赤霉素(GA3)、吲哚-3-丁酸(IBA)、脱落酸(ABA)、玉米素(Z)含量的变化,研究倾斜杨树树干应拉区与对应区内源激素分布规律。结果表明,IAA在6月份时含量是最高的,在不同倾斜角度下,应拉区和对应区的IAA含量分布规律相同,倾斜30°时IAA含量最高而45°时含量最低,除30°外其他角度对应区含量都高于应拉区。GA3在4月份时含量最高,在一个生长周期即一年内对应区含量高于应拉区,倾斜15°和30°时对应区含量高于应拉区。IBA在不同生长季节、不同倾斜角度下呈现出对应区含量高于应拉区的分布规律。ABA(12月除外)和Z(12月和15°除外)也都呈现出与IBA相同的分布规律。In order to investigate the distribution of endogenous hormones between the regions of tension wood and opposition in inclined stem of poplar,five endogenous hormones i.e.indole-3-acetic acid（IAA）,gibber-ellic acid（GA3）,indole-3-butyric acid（IBA）,abscisic acid（ABA） and zeatin（Z） in cambium of inclined poplar stem were determined by high-performance capillary electricity（HPCE） in different months.The results showed that the maximum value of IAA content was reached in June;the regulation of distribution of IAA in tension re-gion and opposite region in different inclined angles was the same;the maximum value of IAA content was reached in inclined angle of 30°,while the minimum value was reached at 45°;the content of IAA in opposite re-gion was higher than it in the tension region in different inclined angles except the angle of 30°;the maximum value of GA3 content was reached in April,the content of GA3 in opposite region was higher than it in tension region within a year;the content of GA3 in opposite region was higher than it in tension region in inclined angles of 15°and 30°;the content of IBA in opposite region was higher than it in tension region within different seasons and in different inclined angles;the distribution of content of ABA（except December） and Z（except December and inclined angle of 15°） was the same as the content of IBA.

关 键 词：人工倾斜 应拉木 内源激素 分布规律 

分 类 号：S781[农业科学—木材科学与技术]