Comparative morphology of floral initiation and development in three different flower types of tulip3

( Max 2000 Items )
URI http://shark.lib.kagawa-u.ac.jp/kuir/metadata/275
Title
Comparative morphology of floral initiation and development in three different flower types of tulip3
Title Alternative
3つの異なる花型をもつチューリップの花芽分化と発達の形態的比較
File
Description

The morphologicl changes in the shoot apex during floral initiation and development in three different flower types, single flower, double flower and branching type, are compared by using a scanning electron microscope. The shoot apex of Ballerina (single flower type) started swelling, and rounded. Three primordia each of the outer perianth, inner perianth, stamen primordia in the first whorl and stamen primordia in the second whorl appeared in succession. The center of the apex then became triangular in shape and caved in. The triangular structure developed into a pistil. The shoot apex of 'Angelique'(double flower type) produced six perianthes first. Then the apex continued to produce many protuberant primodia. Most primordia became broad in shape and developed into perianthes. Some inner primodia developed into stamen-like structures. In 'Orange bouquet'(branching type) some axillary buds initiated floral organs after the main flower bud developed fully. The axillary bud produced a leaf primordium first, then initiated floral organs acropetally in a spiral order.

一重咲きタイプのバレリーナ, 八重咲きタイプのアンジェリケ, 枝咲きタイプのオレンジブーケの3品種のチューリップの花芽分化を走査型電子顕微鏡で観察した.バレリーナの場合, 3枚の普通葉を分化した後茎頂が肥大し, その外花被, 内花被, 雄ずい第1環, 第2環の順で3つずつの原基が分化した.その後茎頂の中央部は三角形になり, その頂部がへこみ始め雌ずいへと分化した.雄ずいが伸長し雌ずいを囲みその後花被が伸長して全体を覆った.八重咲きのアンジェリケでは, 花被の分化に引き続き多数の突起状の原基が分子し, そのうち外側の多くは花被化し内側のいくつかは雄ずい化した.枝咲きのオレンジブーケでは中心の花芽の分化完成後, 腋芽の茎頂は1枚の普通葉を分化した後花芽を分化した。

Author
著者 Fukai Seiichi
著者(ヨミ) フカイ セイイチ
著者(別表記) 深井 誠一
著者 Goi Masanori
著者(ヨミ) ゴイ マサノリ
著者(別表記) 五井 正憲
Publication Title
香川大学農学部学術報告
Volume
53
Start Page
25
End Page
29
Publisher
香川大学農学部
Published Date
20010330
ISSN
0368-5128
NCID
AN00038339
Resource Type
Departmental Bulletin Paper
Language
eng
Text Version
publisher
Set
香川大学
Copyright (C) 2009 Kagawa University All rights reserved.