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首页> 外文期刊>Chinese science bulletin >Study on the photosynthetic performances of Enteromorpha prolifera collected from the surface and bottom of the sea of Qingdao sea area
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Study on the photosynthetic performances of Enteromorpha prolifera collected from the surface and bottom of the sea of Qingdao sea area

机译：青岛海域海表和海底采集的of肠光合特性的研究

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摘要

In this work, the photosynthetic performances of Enteromorpha prolifera thalli collected from the surface and bottom of the sea of Qingdao sea area were studied with chlorophyll fluorescence and oxygraph technology. The samples with the highest photosynthetic activity among their kinds, the floating thalli from the sea surface of the south of the Qingdao Olympic Sailing Center and the sedimentary thalli from the mud surface of the bottom Tuandao bay, were chosen as representatives of surface thalli and bottom thalli, respectively. The results showed that the maximal PSII quantum yield of the floating thalli was significantly lower than the normal level although their photosynthetic activities were relatively high; the photosynthetic potential of the thalli form the mud surface was extremely low. Thus, it is indicated that the floating thalli are seriously stressed by their environment and the thalli from the mud surface are already dead or are dying. On the other hand, the results of the laboratory cultivation showed that the sedimentary thalli cannot regain normal photosynthetic activity even under normal illumination conditions. Thus, the thalli from the mud surface cannot become reproductive source of the alga even if they can reach sea surface again. Therefore, a preliminary conclusion can be reached that, up to mid-July 2008, the environmental conditions of the Qingdao sea area are not suitable for the growth of the alga E. prolifera and for this reason the biomass of E. prolifera, in the area, could be declining.
机译：本研究利用叶绿素荧光和氧谱技术研究了从青岛海域海表和海底采集到的Enter虫的光合性能。选择了青岛奥帆中心以南海面的漂浮沙眼和团岛湾底部泥质表面的沉积沙眼中光合活性最高的样品作为其表面和底部的代表。塔利分别。结果表明，尽管漂浮拟南芥的光合活性较高，但其最大PSII量子产率却明显低于正常水平。泥质表面的塔利的光合作用潜力极低。因此，表明漂浮的塔利岩受到其环境的严重压力，并且来自泥浆表面的塔利岩已经死亡或正在死亡。另一方面，实验室培养的结果表明，即使在正常的光照条件下，沉积thalli也无法恢复正常的光合作用。因此，即使它们可以再次到达海面，来自泥面的海水也不能成为藻类的繁殖源。因此，可以得出的初步结论是，截至2008年7月中旬，青岛海域的环境条件不适合藻类增生性大肠杆菌的生长，因此，该物种在该区域的生物量不大。面积，可能会下降。

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