Standard guide for conducting static , axenic , 14 - day phytotoxicity tests in test tubes with the submersed aquatic macrophyte , myriophyllum sibiricum komarov 在装有浸入式水生大型植物狐尾藻属sibiricum蜀试验管里进行静态无菌和14日植物毒性试验的标准指南
Comparison with two species of ruppia in the age of miocene from europe indicates the existence of three fossil species from miocene to pliocene and from europe to east asia stratigraphically and geographically 榆社川蔓藻将川蔓藻属的第三纪地理分布范围从欧洲延伸到了东亚，并且填补了它在上新世地层的空缺。
Cladophorales an order of chlorophyta ( green algae ) , generally called siphonaceous algae . they are multicellular saclike forms or branched filaments with branching rhizoidike holdfasts , e . g . cladophora 刚毛藻目：绿藻门中的一目，称为虹吸管状的藻类。它们是多细胞囊泡状的或分枝的丝状体，用分枝状的假根固着。例如刚毛藻属。
Thirty - five genuses of periphytic algae were observed , which seneara , stauroneis and mougeotia were dominant populations . sixty species of protozoan were observed , which amoeba proteus , actinophrys so , litonotus fasciola were dominant populations . 2 优势种群为针杆藻属、辐节藻属、转板藻属；周丛原生动物60种，优势种群为大变形虫、放射太阳虫、砂壳虫、片状漫游虫。
The blastn results show that gyn - 15 is closely related to a symbiont of anemones , s . californium , and the free - living strain , gymnodinium varians . sequence comparison show that the similarities among each part of the sequences from these three strains are all above 99 % . phylogenetic reconstruction with neighbor - joining ( nj ) method using sequences of variable regions ( v1 + v2 + v3 ) of ssu rdna indicated that gyn - 15 , s . californium and g . varians form a new clade with 100 % bootstrap support 以ssurdna序列中的三个可变区( vz + vz + v3 )和邻接法困eighbor一joiningmethod ， nj法)构建共生甲藻属的系统进化树表明， gyn一巧与5 . cal扣rnium和g . varian :在共生甲藻属内构成一个独立的、自检支持百分率为100 %的子类群( clade ) ，根据这些结果可将gyn一巧初步鉴定为属于共生甲藻属。
The algae removing rate of four algaecides increased with dose increasing , and the sequence of four algaecides " removing rate on algae from high to low were potassium permanganate , sodium hypochlorite or copper sulfate and hydrogen peroxide . the suitable contact time of four algaecides was also given . the paper compared with the rate of algae removal by any one of three algaecides for two source water 结果表明，实验期间，引黄水中藻类绝大多数为硅藻，优势藻属为硅藻门的直链藻属，占藻类总数的78 94 ；四种杀藻剂的藻类去除率随杀藻剂投加量的增加而提高，实验条件下，四种杀藻剂的藻类去除率由大到小依次为：高锰酸钾次氯酸钠或硫酸铜过氧化氢。
During this time both the monthly average algae density and lasting time increased year after year . the main algae forming algae bloom was cyanophyta and the dominant generas were microcystis . the accumulation of nutrients ( such as total nitrogen and total phosphorus ) with high concentration , high temperature of water and strong sunshine caused the algae bloom 结果表明，水温较高的夏秋季(一般为7 9月)是天津市城市供水水源的藻类高发期；近几年，高藻期含藻量呈逐年增加趋势，持续时间呈逐年延长趋势；高藻期水源水以蓝藻为主，所占藻类总数最高和最低比例分别为91和70 ，其中的优势属为微囊藻属；水源水中高含量的氮、磷等营养盐是藻类高发的内在因素，水温、光照等是外在诱发因素。
Although wild types of dunaliella screened from different environments presents distinct salt stress tolerance and optimal salt concentration , all of them are capable of living in the environment of a wide range of nacl . dunaliella . salina , has the greatest tolerance to salt stress , and can live in saturated salt solution 杜氏藻属的野生生活环境最明显的特点是富含na ~ +和cl ~ - ，尽管从各地分离到的野生型株系对nacl的承受范围和最适生长浓度有所不同，但还是可以看出它们对nacl有很大的适应浓度范围。
Dunaliella salina ( d . salina ) belongs to chlorophyta , chlorophyceae , volvocales and its shape and structure are very similar to chlamydomonas reinhardtii ( c . reinhardtii ) except for lacking of cell wall . it is a kind of ellipse or pear - shaped unicellular tolerant alga with the length of six to fifteen um 杜氏盐藻属绿藻门绿藻纲团藻目，除缺乏细胞壁外，其形态和结构特征与衣藻十分相似，是一种原生质裸露的嗜盐性浮游单细胞藻，长约6 - 15 m ，呈椭圆形或梨形，有双鞭毛，能在水中游动。
Among them , denticula ( with 2 species ) , epithemia ( with 6 species and 8 varieties ) , and rhopalodia ( with 5 species and 4 varieties ) belong to the family epithemiaceae ; the family nitzschiaceae include 3 genera , bacillaria ( with 1 species ) , hantzschia ( with 3 species 4 varieties and 1 form ) and nitzschia ( with 28 species and 7 varieties ) ; and the other genera cymatopleura ( with 3 species and 3 varieties ) , surirella ( with 13 species and 4 varieties ) , stenopterobia ( with 1 species ) and campylodiscus ( with 1 species ) belong to the family surirellaceae 其中窗纹藻科有3属，有细齿藻属2种，窗纹藻属6种8变种，棒杆藻属5种4变种；菱形藻科3属，有杆状藻属1种，菱板藻属3种4变种1变型，菱形藻属28种7变种；双菱藻科4属，有波缘藻属3种3变种，双菱藻属13种4变种，长羽藻属、马鞍藻属各1种。
