\u30a2\u30f3\u30dc\u30ec\u30e9\u76ee\u3068\u30b9\u30a4\u30ec\u30f3\u76ee\u306f\u9053\u7ba1\u8981\u7d20\u3092\u5f62\u6210\u305b\u305a\u3001\u4eee\u5c0e\u7ba1\u306e\u307f\u3092\u6301\u3064\uff08Carlquist 2012)\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u3089\u306e\u76ee\u3067\u306f\u3001\u4eee\u5c0e\u7ba1\u5f62\u614b\u304c\u9053\u7ba1\u5f62\u614b\u306b\u4f3c\u3066\u3044\u308b\u90e8\u5206\u3082\u3042\u308b\u3002\u4f8b\u3048\u3070\u3001\u30a2\u30f3\u30dc\u30ec\u30e9\u306f\u4e8c\u6b21\u4eee\u5c0e\u7ba1\u3067\u306f\u7a7f\u5b54\u677f\u304c\u8cab\u901a\u3057\u3066\u9053\u7ba1\u8981\u7d20\u306e\u3088\u3046\u306b\u306a\u308b\u50be\u5411\u304c\u3042\u308b\uff08Feild et al. 2000\uff09\u3002\u30b9\u30a4\u30ec\u30f3\u76ee\u3067\u306f\u58c1\u786c\u819c\u306b\u5927\u304d\u306a\u7a74\u304c\u958b\u3044\u3066\u3044\u308b\uff08Schneider and Carlquist 1995a, 1995b\uff09\u3002\u30b9\u30a4\u30ec\u30f3\u76ee\u306b\u4f3c\u305f\u4eee\u5c0e\u7ba1\u306f\u30b7\u30e7\u30a6\u30d6\u76ee\u306b\u3082\u898b\u3089\u308c\u308b\uff08Carlquist and Schneider 1997)\u3002\u4eee\u5c0e\u7ba1\u3068\u9053\u7ba1\u304c\u3069\u306e\u3088\u3046\u306a\u5206\u5b50\u6a5f\u69cb\u306e\u9055\u3044\u306b\u3088\u3063\u3066\u3067\u304d\u308b\u306e\u304b\u304c\u308f\u304b\u3063\u3066\u304f\u308b\u3068\u3001\u88ab\u5b50\u690d\u7269\u306b\u304a\u3051\u308b\u6c34\u901a\u5c0e\u7d44\u7e54\u306e\u8d77\u6e90\u3068\u9032\u5316\u306b\u3064\u3044\u3066\u3088\u308a\u660e\u78ba\u306a\u63a8\u6e2c\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3060\u308d\u3046\u3002<\/p>\n
Amborellales and Nymphaeales only have tracheids and do not have vessel elements as some angiosperms including Acorus<\/em> and Winteraceae (Carlquist 2012). However, tracheids morphology partly becomes similar to vessel elements. For example, end walls of secondary tracheary elements of Amborella<\/em> tend to be pitted in Amborella<\/em> (Field et al. 2000). Pit membranes of Nymphalea have large pores (Schneider and Carlquist 1995a, 1995b). This tendency is also observed in Acorus<\/em> (Carlquist and Schneider 1997). Understanding of the molecular mechanisms to from vessel and tracheary elements will give insight on the origin and evolution of water conducting tissues.<\/p>\n Carlquist, S. 2012. How wood evolves: A new synthesis. Botany 90: 901-940.<\/p>\n Carlquist, S. and Schneider, E.L. 1997. Origins and nature of vessles in monocotypledons. I. Acorus. Int. J. Plant Sci. 158: 51-56.<\/p>\n Feild, T.S., Zweiniecki, M.A., Brodribb, T., Jaffr\u00e9, T., Donoghue, M.J., and Holbrook, N. M. 2000. Structure and function of tracheary elements in Amborella trichopoda. Internat. J. Plant Sci. 161: 705-712.<\/p>\n Schneider, E.L. and Carlquist, S. 1995a. Vessels in the roots of Barclaya roundifilia (Nymphaeaceae). Amer. J. Bot. 82: 1343-1349.<\/p>\n Schneider, E.L. and Carlquist, S. 1995b. Vessel origins in Nymphaeaceae: Euryale and Victoria. Bot. J. Linn. Soc. 119: 195-193.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" \u30a2\u30f3\u30dc\u30ec\u30e9\u76ee\u3068\u30b9\u30a4\u30ec\u30f3\u76ee\u306f\u9053\u7ba1\u8981\u7d20\u3092\u5f62\u6210\u305b\u305a\u3001\u4eee\u5c0e\u7ba1\u306e\u307f\u3092\u6301\u3064\uff08Carlquis … \u7d9a\u304d\u3092\u8aad\u3080