榉树叶色变化类型和原因探析  

Study on types and reasons of variation in leaf color of Zelkova schneideriana Hand-Mazz

作　　者：罗雪梅[1] 金晓玲[1] 刘雪梅[1] 

机构地区：[1]中南林业科技大学环境艺术设计学院,湖南长沙410004

出　　处：《广东农业科学》2011年第23期54-56,共3页Guangdong Agricultural Sciences

基　　金：长沙市科技局项目(k09050158-21);国家林业公益性行业科研专项(200904011);国家林业局948项目(2009-4-03)

摘　　要：榉树既是重要的秋色叶植物,也是重要的园林观赏植物。了解榉树叶色变化特点、掌握其变化规律,可以为榉树新品种选育提供借鉴和依据。对国内外榉树叶色变化研究的最新进展进行了综述,结果发现,榉树叶色季相变化丰富,一般春季新叶为红色,秋季叶色有深红色、棕红色、米黄色和秋季叶色基本保持绿色等4种类型;榉树秋季叶色变化与变色期叶片中花青素含量有关,变色类型还与叶片中叶绿体降解速度有关;榉树叶色变化还存在显著的个体差异。Zelkova schneideriana Hand-Mazz is not only an important autumn color tree, but also an important ornamental plant. Understanding the characteristics and the law of Z. schneideriana Hand-Mazz＇s leaf color variation can provide a reference and basis for breeding new varieties. We reviewed the latest research at home and abroad on Z. schneideriana Hand-Mazz＇s leaf color variation. The results showed that it has a rich seasonal changes in leaf color. Its young leaves are red in spring and its autumn leaves have four kinds of color of dark red, brown, beige and green which remained in autumn. The leaf color variation of beech tree in autum bears relation to the content of anthocyanin in leaves. The types of variation are related to the speed of the chloroplast＇s degradation. In addition, there are significant individual differences in leaf color variation of Z. schneideriema Hand-Mazz.

关 键 词：榉树 叶色变化 花青素 研究进展 

分 类 号：S687[农业科学—观赏园艺]