Outflow movement during gamete discharge in Bryopsis plumosa (Caulerpales, Chlorophyta)

Outflow movement during gamete discharge in Bryopsis plumosa (Caulerpales, Chlorophyta)
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羽藻(Caulerpales,绿藻门)配子排出过程中的流出运动

DOI:
10.1111/j.1440-1835.2010.00601.x
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发表时间:
2011
期刊:
影响因子:
1.6
通讯作者:
Okuda K
Okuda K
中科院分区:
生物学3区
文献类型:
--
作者:
Mine I;Yoshimatsu K;Kobanba A;Sekida S;Okuda K

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用高渗溶液进行短暂处理可诱导同核绿藻 Bryopsis planta (Hudson) C. Agardh 配子体排出配子。众所周知,这种藻类的配子排出是由从黑暗到光明的变化触发的。然而,在这项研究中,成熟的配子体在添加了 0.4-0.6M 氯化钠的人工海水 (ASW) 中孵育 30-120 秒,然后转移到纯 ASW 中,在黑暗中排出配子。处理不影响配子的运动性。在 ASW 中添加蔗糖 (1.0–1.2 M) 也会诱导黑暗中配子排出。通过向 ASW 中添加 KCl (0.4 M) 或甘露醇 (1.2 M) 获得类似的结果。在这种高渗溶液中连续培养配子体也诱导配子排出,但导致配子排出速率的延迟和降低,以及配子运动性的丧失。在用高渗溶液处理的配子体中以及在暴露于光的配子体中,在配子排出之前观察到配子体长度缩短。
Brief treatment with hypertonic solutions induced gamete discharge from gametangia in the coenocytic green algaBryopsis plumosa(Hudson) C. Agardh. It is known that gamete discharge in this alga is triggered by a change from darkness to light. However, in this study mature gametangia, incubated for 30–120 s in artificial seawater (ASW) with an additional 0.4–0.6 M NaCl and then transferred into pure ASW, discharged gametes in darkness. The treatment did not affect the motility of the gametes. Addition of sucrose (1.0–1.2 M) to ASW also induced gamete discharge in darkness. Similar results were obtained by adding KCl (0.4 M) or mannitol (1.2 M) to ASW. Continuous incubation of gametangia in such hypertonic solutions also induced gamete discharge but led to a delay and a reduction in the rate of gamete discharge, and a loss of gamete motility. In gametangia treated with the hypertonic solutions, as well as in those exposed to light, shortening of the gametangial length was observed before gamete discharge.
DOI: 10.1007/bf01275744
发表时间: 1976
期刊: Protoplasma
影响因子: 2.9
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DOI: 10.1111/j.1529-8817.1974.tb02723.x
发表时间: 1974
影响因子: 2.9
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发表时间: 1968
影响因子: 2.9
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