Effects of Daphnia-associated infochemicals on the morphology, polysaccharides content and PSII-Efficiency in Scenedesmus obliquus

Effects of Daphnia-associated infochemicals on the morphology, polysaccharides content and PSII-Efficiency in Scenedesmus obliquus
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水蚤相关信息化学物质对斜生栅藻形态、多糖含量和 PSII 效率的影响

DOI:
10.1002/iroh.200710963
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发表时间:
2007-12
影响因子:
1.9
通讯作者:
Zhang, Min
Zhang, Min
中科院分区:
生物学4区
文献类型:
--
作者:
Xing, Peng;Shi, Xiaoli;Kong, Fanxiang;Yang, Zhou;Zhang, Min

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我们研究了来自 Carinata 的信息化学品对栅藻形态、多糖产量和 PSII 效率的影响。 D. carinata 释放的信息化学物质诱导 S. obliquus 菌落形成。诱导的斜生水蚤集落中可溶性胞外多糖、结合型胞外多糖和每个细胞的总多糖含量相对于单细胞显着增加,这表明水蚤相关信息化学物质也可以刺激斜生水蚤增加胞外多糖的合成。增加的胞外多糖可能在将斜生葡萄球菌细胞粘合在一起形成集落方面发挥重要作用。此外,单细胞和诱导集落群体之间的生长、PSII光化学最大效率(Fv/Fm)和PSII有效量子产率(ΦPSII)没有检测到显着差异,这表明诱导集落形成的成本并未反映在这些指标上。 (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA,魏因海姆)
We investigated the effects of infochemicals from Daphnia carinata on the morphology, polysaccharides yield and PSII-efficiency in Scenedesmus obliquus. Infochemicals released from D. carinata induced colony formation in S. obliquus. The contents of soluble extracellular polysaccharides, bounded extracellular polysaccharides, and the total polysaccharides per cell in the induced colonies of S. obliquus increased significantly relative to those of the unicells, which indicated that Daphnia -associated infochemicals could also stimulate S. obliquus to increase the synthesis of extracellular polysaccharides. The increased extracellular polysaccharides may play an important role in cementing S. obliquus cells together to form colonies. In addition, no significant differences in growth, the maximal efficiency of PSII photochemistry (Fv/Fm), and the effective quantum yields of PSII (ΦPSII) were detected between unicellular and induced colonial populations, which showed that the cost of induced colony formation was not reflected on these indices. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
DOI: 10.1111/j.1529-8817.1982.tb03184.x
发表时间: 1982-06
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