黑莓“宝森”及其芽变品种“宁植1号”皮刺的比较鉴定  

Comparative Observation of Prickle Between Blackberry cv.'Boysenberry' and Its Bud Mutation cv.'Ningzhi 1'

作　　者：张春红[1] 吴文龙[1] 王小敏[1] 胡淑英[1] 闾连飞[1] 李维林[1] 

机构地区：[1]江苏省中国科学院植物研究所,江苏南京210014

出　　处：《北方园艺》2013年第8期26-29,共4页Northern Horticulture

基　　金：江苏省自然科学基金资助项目(BK2011686);2010年江苏省"博士集聚计划"资金资助项目

摘　　要：对黑莓"宝森"品种及其皮刺芽变品种"宁植1号"的茎表皮皮刺形态结构进行了比较鉴定。结果表明:"宝森"皮刺密度大(9.63个/cm)且粗壮坚硬,大多数皮刺自基部至顶端表面均有褶皱,"宁植1号"皮刺密度小(1.42个/cm)且纤细柔软,几乎所有皮刺仅基部表面有皱褶。显微结构观察发现,2个品种的皮刺均由茎表皮特化而来,"宝森"皮刺组成细胞数目多且排列致密,在与枝条连接处的皮刺组成细胞与茎表皮细胞形状大小相似,随着皮刺的伸展皮刺组成细胞逐渐变得狭长;"宁植1号"皮刺组成细胞数目较"宝森"少,皮刺基部至顶端细胞和茎表皮细胞形状大小均相似。2个品种皮刺分布和形态结构特征的比较为进一步揭示黑莓皮刺形成机理及"宁植1号"芽变机理提供了参考依据。The morphologic feature and structure of stem prickle of blackberry cv. ‘Boysenberry＇ and its bud mutation cv. ‘Ningzhi 1＇ were observed and compared. The results showed that the stem prickles of ‘Boysenberry＇ were strong and hard,and had the density of 9. 63 per cm,and that on ‘Ningzhi 1＇ was only 1. 42 per cmand the prickles were relatively slender and tender. Scanning electron microscopy revealed that on ‘Boysenberry＇ stem surface most prickles had fold from top to base, while on ‘Ningzhi 1＇ the fold only occurred in the base portion of almost all prickles. Comparison of anatomical structure showed that prickles on both cultivars were originated from stem epidermis. The cells of ‘Boysenberry＇ prickles had large numbers and dense arrangement and they had similar size and shape with stem epidermis cells at the stem epidermis junction,with the elongation of the prickle, the constituent cells became narrow. For ‘ Ningzhi 1 ’ the prickle formation cells had a relatively small number and from base to top had similar size and shape as stem epidermis cells. The comparative observation of two cultivars in prickle distribution and morphologic features provided analysis thought for further revealing the prickle formation mechanism of blackberry and bud mutation mechanism of ‘ Ningzhi 1＇.

关 键 词：黑莓 皮刺 显微结构 超微结构 

分 类 号：S663.2[农业科学—果树学]