MSU/AEC Plant Research Laboratory, Michigan State University, East Lansing, Michigan, USA.
Planta. 1972 Mar;107(1):69-80. doi: 10.1007/BF00398015.
Heterocysts of Anabaena cylindrica, isolated rapidly in the cold, were found-in contrast to earlier reports-to contain all of the same lipids and lipophilic pigments, and in about the same proportions, as vegetative cells. In broken filaments and in heterocysts damaged during isolation, the membrane lipids and certain pigments (myxoxanthophyll and an unidentified red pigment) break down rapidly. The glycolipids specific to heterocyst-forming blue-green algae are localized in the laminated layer of the heterocyst envelope. A possible role of the laminated layer is discussed.
与早期的报告相反,在冷环境中快速分离得到的鱼腥藻异形胞中,发现其含有与营养细胞相同的所有脂类和疏水性色素,且比例相当。在破碎的藻丝和分离过程中受损的异形胞中,膜脂类和某些色素(甲藻黄素和一种未鉴定的红色色素)迅速降解。专属于异形胞形成蓝藻的糖脂类物质定位于异形胞包被的层状层中。讨论了层状层的可能作用。