<論文>遠心過重力下で成長したホウライシダ原糸体の透過型電子顕微鏡による観察

概要

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When the spore of Adiantum capillus-veneris was germinated under 20 Xg hypergravity condition, growing protonema was branched, as observed in Adiantum protonema grown under 1,300 Xg hypergravity condition (Mineyuki and Furuya, 1980). In the latter case, branching of the protonema occurred in the site of the nucleus, which was displaced basipetally from the center of the protonema cell by 1,300 Xg hypergravity, although the nucleus was recovered to the center of the cell after removing hypergravity force from the protonema. To confirm whether or not the nucleus of the protonema is displaced by low hypergravity (20 Xg), as is the case of high hypergravity (1,300 Xg), the site of the nucleus in the protonema cell was observed by electron microscopy using serial sections. No displacement of the nucleus was observed in the protonema grown under low hypergravity condition, suggesting that branching of the protonema by low hypergravity force occurs by a mechanism different from that by high hypergravity force.
北海道東海大学の論文
1995-03-25