Histology of in vitro organogenesis and somatic embryogenesis in callus cultures of Rosa

被引：0

作者：

Rout, GR ^{[1
]}

Samantaray, S ^{[1
]}

Mottley, J ^{[1
]}

Yokoya, K ^{[1
]}

Mandegaran, Z ^{[1
]}

Sarasan, V ^{[1
]}

Kandasamy, K ^{[1
]}

Roberts, AV ^{[1
]}

Das, P ^{[1
]}

机构：

[1] Reg Plant Resource Ctr, Plant Tissue Culture Lab, Bhubaneswar 751015, Orissa, India

来源：

BIOLOGIA | 1998年 / 53卷 / 01期

关键词：

histology; in vitro; organogenesis; somatic embryo;

D O I：

暂无

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Histological studies of callus proliferation, organogenesis and somatic embryogenesis in leaf-and stem-derived calluses of Rosa hybrida cv. Landora were made by light microscope. During organogenesis, rapid periclinal divisions of superficial cells formed nodules, many of which developed vascular strands, promeristems and adventitious leaves. Additional promeristems with small, densely staining cells and a distinct tunica layer also originated in the organogenic region by cell division in the epidermal and subepidermal cell layers. During embryogenesis, some cells on the periphery of the callus underwent internal segmenting divisions and either directly formed somatic embryos or continued to proliferate and produce an, embryogenic callus. The vascular system of the somatic embryos was separated without connection to the callus. Secondary embryos occasionally formed at the base of primary embryos. The details of the histological development during organogenesis and somatic embryogenesis of rose plants may help to identify the cause of developmental failures in recalcitrant genotypes.

引用

页码：121 / 126

页数：6

共 24 条

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