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タイトル: Seed coat sculpturing in Halophila
著者: Japar Sidik, Bujang
Muta Harah, Zakaria
Suzalina Akma, Awing
Nojima, Satoshi
Ogawa, Hisao
キーワード: seagrasses
surface morphology
seeds
Halophila
Malaysia
発行日: 2006年4月28日
出版者: International Coastal Research Center, Ocean Research Institute, the University of Tokyo
掲載誌情報: Coastal marine science. Vol.30No.1, 2006.4, pp. 240-242
抄録: This study furnishes information on external morphology of the seed coats of selected Halophila. Fruiting plants of Halophila beccarii, H. ovalis, H. decipiens, Halophila sp. were collected from various locations around Malaysia and including Halophila stipulacea from Mauritus. Seeds extracted from mature fruits were fixed in 2.5% glutaradehyde. Fixed seeds were washed in 0.1M Sodium cacodylate buffer at 4℃ for 10 minutes. The washing procedure was repeated three times. The seeds were dehydrated in graded acetone series of 35%, 50%, 75%, 95% and 100% followed by in acetone and, dried in a Baltec 030 critical point dryer. After sputter-coating with gold, specimens were examined with a JEOL 6400 scanning electron microscope. Halophila seeds are sub-spherical and bluntly beaked at both ends. The Halophila seeds from different species showed diverse seed coats morphology with different sculpturing. Seeds of H. beccarii, Halophila ovalis, H. decipiens have reticulate coats with variations in microsculpturing within the reticulations. Seed coat of Halophila sp. is characteristically verrucose in appearance produced by warts or short peg-like projections. Seeds of Halophila stipulacea have reticulate seed coats and the boundaries of the reticulations are joined by peculiar sutures. These diverse seed coats morphology are illustrated by the electron micrographs taken from JEOL 6400 scanning electron microscope.
URI: http://hdl.handle.net/2261/5640
ISSN: 13493000
出現カテゴリ:Coastal Marine Science
Coastal Marine Science

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