异形胞由丝状蓝藻等的细胞列中的普通的营养细胞在一定的条件下分化而成。
关键词异形胞,固氮,丝状蓝藻1异形胞的结构和功能异形胞(Heterocyst)是蓝藻中某些丝状体种类所特有的一种能固氮的细胞,它们是由藻丝细胞中的一些营养细胞转化而来的。
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异形胞子 anisospore
分枝异形胞群 Branching heterocystous
异形细胞 [植] heterocyst ; idioblast ; boundary cell
不分枝、异形胞群 Nonbranching heterocystous
异形红细胞 [临床] poikilocyte
异形红细胞症 [医] poikilocytosis ; poikilocythemia ; pecilocythemia
异形淋巴细胞 abnormal lymphocyte ; atypical lymphocyte ; heteromorphous lymphocyte
异常红细胞形态检查 examination of abnormal RBC morphology
异形囊胞 [植] heterocyst
The determination of 2-ketoglutarate showed that the accumulation of 2 - ketoglutaric acid was corresponding increased to the number of heterocyst cells.
测定碳氮中间代谢产物2-酮戊二酸在细胞中的积累发现,2-酮戊二酸的含量与异形胞的发生频率有一定对应关系,在异形胞发生频率较高的培养液中,2-酮戊二酸的含量相应增高。
参考来源 - 水华束丝藻碳氮代谢特征及相互作用·2,447,543篇论文数据,部分数据来源于NoteExpress
藻丝的营养细胞是扁平的,具异形胞。
The filament possesses oblate cell for nutrition and heterocyst.
异形胞可溶部分的蛋白酶活比营养细胞可溶的蛋白酶活高4—5倍。
The activity of the soluble protease of heterocyst was 4-5 times higher than that of the vegetative cell.
结果显示,有一个突变株不能分化异形胞; 三个突变株可以形成异形胞,但在缺氮的条件下仍不能维持生长;
The result showed that one mutant was unable to differentiate heterocyst, three formed heterocysts but still could not maintain normal growth, four growed slowly with heterocyst differentiation.
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