LIFE-HISTORY AND PHOTOPERIODIC RESPONSES IN CHONDRUS-GIGANTEUS FORMA FLABELLATUS (GIGARTINACEAE, RHODOPHYTA) FROM JAPAN

被引:3
作者
BRODIE, J
MASUDA, M
GUIRY, MD
机构
[1] NATL UNIV IRELAND UNIV COLL GALWAY,MARTIN RYAN MARINE SCI INST,GALWAY,IRELAND
[2] NATL UNIV IRELAND UNIV COLL GALWAY,DEPT BOT,GALWAY,IRELAND
[3] HOKKAIDO UNIV,GRAD SCH SCI,DIV BIOL SCI,SAPPORO,HOKKAIDO 060,JAPAN
关键词
CARRAGEENOPHYTE; CHONDRUS-GIGANTEUS; F-FLABELLATUS; LIFE HISTORY; PHOTOPERIODISM; SHORT-DAY RESPONSE;
D O I
10.1080/09670269400650601
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The life history and photoperiodic responses of the carrageenophyte Chondrus giganteus forma flabellatus (Rhodophyta) from Japan were investigated in culture. This entity has a Polysiphonia-type life history and the formation of both tetrasporangia and cystocarps is controlled by daylength. A night-break of a 16 h in the middle of a 16 h night was effective in inhibiting reproduction, confirming the classical photoperiodic nature of the response. Tetrasporangia formed at daylengths of 12 h or less, whereas cystocarps only developed at daylengths of 10 h or less. The formation of spermatangia required daylengths of 12 h or less, but production was not inhibited by a night-break of 1 h in the middle of a 16 h night.
引用
收藏
页码:159 / 164
页数:6
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