30 Bacillaria paxillifera 派格棍形藻 Phylum: Heterokontophyta 门：不等鞭毛门 Class: Bacillariophyceae 纲：羽紋硅藻纲 Order: Bacillariales 目：硅藻目 Family: Bacillariaceae 科：硅藻科 Morphology Cells are elongated with flat ends and are distributed in parallel to form a bamboo raftlike stacked colony. Adjacent cells could slide forward and back along each other, adhering one to another only by their ends, to perform a gliding movement and form a dynamically extending or aggregating chain. General shape of colony is very variable, rectangular to filamentous consequently. Chloroplasts are small, granular, and numerous. 形態 細胞細長，末端平截，相鄰細胞平行分佈形成竹排狀堆積群體。相鄰細胞可以前後 滑動，形成一個動態延長或聚集的鏈，只通過細胞末端相連。群體外觀也因此從矩 形到束狀不斷變形。色素體呈小顆粒狀，數量多。 Ecology and distribution Bacillaria paxillifera is a widely distributed marine planktonic and benthic species. 生態與分佈 派格棍形藻是廣泛分佈的浮游和底棲物種。 Size Length (apical axis): 70-100 μm (Hendey, 1964); 68-190 μm (Chin et al., 1965); 70-115
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