分类
- 订单
- 颤藻目
- 家庭
- 念珠藻
- 属
- Limnoraphis
的例子 Limnoraphis
400X total magnification; 20 μm scale bar.
形态
Straight to slightly flexuous filaments; mostly solitary; rarely in small and irregular aggregations; up to 20 μm wide, 宽度一般大于6 μm. Sheaths usually present; firm, colorless, fairly thin, with one trichome per sheath. Trichomes cylindrical; unconstricted to slightly constricted at crosswalls; not narrowed at the ends. Cells always shorter than wide; short and discoid (flattened, coin-like shape). Apical cells widely rounded, sometimes with a slightly thickened outer wall; without a calyptra. 有空中楼阁, but develop irregularly in segments along the length of the trichome; Komárek et al (2013) describe these aerotope-filled portions as looking like darker-colored segments scattered along the length of the trichome. 由于细胞中类胡萝卜素的浓度相对较高，花朵呈黄褐色.
这个属是最近才从 螺旋藻; the presence of aerotopes and planktic nature of Limnoraphis distinguish it from 螺旋藻 (Komárek et al . 2013).
生态
浮游或形而上于湖泊、水库. 在美国，据报道来自北部湖泊. Limnoraphis罗布斯塔 在美洲西海岸(从加利福尼亚到秘鲁)附近的湖泊中形成水华。.
参考文献
- 约翰森,J. R., & Komarek J. (2015). 丝状蓝藻. 在J. D. Wehr R. G. 护套, & J. P. Kociolek (Eds.), 北美淡水藻类:生态学和分类 (第二版., pp. 162-177). 马萨诸塞州沃尔瑟姆:爱思唯尔.
- Komarek J.扎波米洛娃，E.斯玛达，J.科佩基，J.雷曼科娃，E.伍德豪斯，J.Neilan, B.A., & Komarkova J. (2013). 多相评价 Limnoraphis罗布斯塔来自危地马拉Atitlán湖的一种水华形成的蓝藻，描述了 Limnoraphis 创. 11月. Fottea,奥, 13(1): 39-52.