Al浓度对枝管藻中性游孢子附着及生长发育的影响  

Effects of Aluminum on the Attachment and Development of Plurispore of Cladosiphon Okamuranus

作　　者：朱清华[1] 

机构地区：[1]德州学院生物系,山东德州253023

出　　处：《北方园艺》2009年第8期123-125,共3页Northern Horticulture

基　　金：农业部引进国际先进农业科学技术计划(948计划)资助项目(2003-Z104);德州学院人才引进资助项目(06rc011)

摘　　要：研究了Al浓度对枝管藻中性游孢子附着以及生长发育的影响。孢子附着量用盘状体的数目表示,盘状体生长速度、生长状况及直立藻丝出现与否用以衡量盘状体的生长发育状况。结果表明:在不同Al浓度0、0.51、、24、mg/L中,最适宜孢子附着及生长发育的浓度为0.5mg/L,其次为01、2、mg/L;在5 mg/L条件下,孢子附着量少,盘状体发育不正常,附着不牢固,不能发育为直立藻丝;高于4 mg/L,无孢子附着。另外,在低Al浓度条件下0、0.5、12、mg/L,中性游孢子可最终发育成直立藻丝。Cladosiphon okamuranus （Chordariaceae, Phaeophyta） is an important marine medicinal plant in Japan. The effects of alumium on attachment and development of plurispore from sporophyte of Cladosiphon okamuranus were studied. The average number of discoids, which were developed from plurispores, in each slide under same alumium concentration, was measured. At the .same time, 15 discoids with equal initial diameter were randomly sampled from each treatment and traced to record the diameters and development states. The results were as follows.The optimum Al concerntration for plurispore to attach and develop was 0. 5 mg/L, followed by 0,1 and 2 mg/L. Under the concerntration of 4 mg/L, few plurispores attached, discoid developed abnormal and no erect gerrnlings were seen. Above 4 mg/L, no plurispore attached. Erect germling of sporophytes occured at the concentration of 0, 0. 5, 1, 2 mg/L.

关 键 词：冈村枝管藻 AL 盘状体 中性游孢子 孢子体 

分 类 号：Q178.53[生物学—水生生物学]