福建丽藻属二新种

本文报导了丽藻属的二新种。分别定名为异分枝丽藻(Nitella heterofurcata和穗枝丽藻(Nitella spicata),前者采自福建邵武下沙乡,后者采自福建尤溪双鲤乡。     

改变生态条件除藻方法的研究

根据食物链中Ｅｌｔｏｎｉａｎ金字塔的形态和Ｋａｌｋｗｉｔｚ提出的河流污染沿程变化分带的概念，提出了改变生态条件培养高一层次生物吃掉藻类的除藻方法，并在工艺上应用浮动生物滤清器解决了这一问题，取得了较好的除藻效果。     

大连水云科藻类的研究

大连地区水云科藻类有9属19种,其中前人报道过的2种,本地区新记录17种。在这17种中,有11种是我国首次记录。本文对新记录种的形态、生态与分布作简要描述。     

Discovery of the budding phosphatized globular fossils from the Neoproterozoic Doushantuo Formation at Weng’an, Guizhou Province, China

There is much debate on biological affinities of the phosphatized globular fossils from the Neoproterozoic Doushantuo phosphorites at Weng’an, Guizhou Province. Here we report for the first time the budding structures of some of these globular fossils, which have previously been interpreted as the resting eggs and early cleavage embryos of metazoans. The budding structures are similar to the germinating tubes of the spore and zygote of living algae, suggesting that some globular fossils from the Doushantuo phosphorites bear affinity with algae. The present new information indicated various biological affinity of the phosphatized globular fossils from the Doushantuo phosphorites.     

贵州云台山蓝藻植物的生态分布

云台山自然保护区是国家级风景区──阳河风景区四大景区之一。保护区内岩溶地貌十分发育，植被类型主要是常绿阔叶林。蓝藻植物有３纲６目１１科５３属２２８种（含变种），有丰富的适钙蓝藻及岩溶蓝藻，蓝藻群落主要以石生群落为主，气生、亚气生种类居优，水生种类贫乏。     

管藻目绿藻叶绿素蛋白复合物PAGE分离方法的优化

以高等植物菠菜为对照，对管藻目绿藻刺松藻和假根羽藻叶绿素蛋白复合物的ＰＡＧＥ分离方法进行了优化。选择ＳＤＳ，ＤＯＣ，ＤＭＧ和ＴｒｉｔｏｎＸ－１００４种去污剂在不同的浓度、比例及增溶时间条件下，对色素蛋白复合物的分离效果进行了比较，并对电泳分离条件做了部分改进，提高了分辨率。     

珠江口盆地晚始新世浮游有孔虫的发现及其地质意义

根据首次在南海珠江口盆地最南端的ＢＹ７－１－１井中发现的晚始新世和早，中浙新世浮游有孔虫石化石组合，认为恩平组的地质时代为晚始新世－早渐新世，最低海相层位至少可以亿溯到晚始新世。     

Heavy metal accumulation by bacteria and other microorganisms

Summary Bacteria, and other microorganisms, exhibit a number of metabolism-dependent and-independent processes or the uptake and accumulation of heavy metals and radionuclides. The removal of such harmful substances from effluents and waste waters by microbe-based technologies may provide an alternative or additional means of metal/radionuclide recovery for economic reasons and/or environmental protection. Both living and dead cells as well as products derived from or produced by microorganisms can be effective metal accumulators and there is evidence that some biomass-based clean-up processes are economically viable. However, many aspects of metal-microbe interactions remain unexploited in biotechnology and further development and application is necessary, particularly to the problem of radionuclide release into the environment.     

夏季南极长城湾沿岸海域浮游硅藻群落定量分析

对南极硅藻进行定量研究较有必要,以客观准确地了解它的组成和分布特征。在南极长城湾沿岸海域共设置6个采样点,每个采样点定量采集3个浮游硅藻样本。结果显示:长城湾海域共发现浮游硅藻31种。浮游硅藻群落的优势种为Cocconesi fasciolata(18.5%)、Amphora holsatica(13.6%)。次优势种为Cocconeis costata(7.1%)、Cocconeis imperatrix(6.8%)、Thalassiosira antarctica(6.4%)、Rhoicosphenia genuflexa(6.1%)、Licmophora antarctica(5.1%)。各样点浮游硅藻细胞密度总平均值为1.92×10~5ind·L~(-1),变幅为1.44×10~5~2.56×10~5ind·L~(-1)。浮游硅藻的分布从湾心到湾口呈现出一定趋势:浮游硅藻的物种丰度,湾心处共15种,湾口处共25种;浮游硅藻的细胞密度,湾心处平均为2.51×10~5ind·L-1,湾口处平均为1.48×10~5ind·L~(-1)。通过相关性分析结果可知,浮游硅藻由湾心到湾口,物种丰度和硅藻细胞密度呈负相关。