The Effects of Water Temperature on Growth and/or Maturation of Gametophytes and Juvenile Sporophytes of Ecklonia cava and E. kurome (Laminariales, Phaeophyta) growing in the Coasts of Wakayama Prefecture
The Effects of Water Temperature on Growth and/or Maturation of Gametophytes and Juvenile Sporophytes of Ecklonia cava and E. kurome (Laminariales, Phaeophyta) growing in the Coasts of Wakayama Prefecture
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水温对和歌山县海岸生长的 Ecklonia cava 和 E. kurome（海带目、褐藻门）配子体和幼孢子体生长和/或成熟的影响
DOI：
10.11233/aquaculturesci.56.343
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
M. Notoya
中科院分区：
文献类型：
--
作者：
Toshimitsu Tanaka;N. Yotsukura;H. Kimura;M. Notoya
将在和歌山县的6个地点采集的来自Ecklonia cava和E.kurome的孢子体的配子体在14、18、20、22、25和28℃的水温条件下培养30天。在14～25℃范围内，两个物种的配子体生长均随温度升高而增加，但在28℃时生长异常。不同地点的个体配子体成熟和孢子体早期发育的最佳水温是不同的。此外，不同水温下培养的个体幼孢子体的形状也表现出相当大的差异。 14℃培养时呈圆形，18℃以上培养时呈细长形。这些结果表明，配子体和孢子体对水温的响应并不能反映 E. cava 和 E. kurome 之间的差异。
The gametophytes of derived from sporophytes of Ecklonia cava and E. kurome collected at six sites in Wakayama Prefecture were cultivated for 30 days under 14, 18, 20, 22, 25 and 28°C water temperature conditions. The growth of all gametophytes of both species increased with increasing temperature between 14 to 25°C, but they grew in abnormal at 28°C. The optimal water temperatures for maturation of the gametophytes and for early development of sporophytes were dif ferent among individuals from different sites. In addition, the shape of the juvenile sporophytes showed considerable differences among individuals cultured under different water temperatures. They took on round shape under 14°C culture, whereas did slender under above 18°C culture. These results suggested that response of gametophytes and sporophytes to water temperature didn’t reflect the difference between E. cava and E. kurome.