Anatomy of adventitious root formation in Opuntia ficus-indica cladodes

被引:8
|
作者
Fabbri, A
Cicala, A
Tamburino, A
机构
[1] Istituto di Coltivazioni Arboree, Università di Catania, 95123, Catania
来源
JOURNAL OF HORTICULTURAL SCIENCE | 1996年 / 71卷 / 02期
关键词
D O I
10.1080/14620316.1996.11515401
中图分类号
S6 [园艺];
学科分类号
0902 ;
摘要
Adventitious root formation in one year old cladodes of prickly pear (Opuntia ficus-indica Mill.) was studied over two weeks after excision in March. The root initials are formed in several tissues, but most primordia originate from phloem cells, located near to, or below, the areoles, while the cambium remains dormant. The stimulus to cell dedifferentiation and multiplication may occur very early, even within the first 48 h; primordia emergence may take as little as two weeks. The primordia never penetrate the areole, but rather turn around it and then run parallel to the areolar cavity, to emerge through the cladode tissues, adjacent to the areolar cavity. Several primordia can be produced by each areolar complex.
引用
收藏
页码:235 / 242
页数:8
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