太空飞行条件下多组分水生系统中小球藻培养的超微结构和生长指标

Ultrastructural and growth indices of Chlorella culture in multicomponent aquatic systems under space flight conditions.

作者信息

Popova A F, Sytnik K M, Kordyum E L, Meleshko G I, Sychev V N, Levinskykh M A

机构信息

N.G. Kholodny Institute of Botany, Ukrainian Academy of Sciences, Kiev, USSR.

出版信息

Adv Space Res. 1989;9(11):79-82. doi: 10.1016/0273-1177(89)90059-8.

DOI:10.1016/0273-1177(89)90059-8

PMID:11537353

Abstract

Submicroscopic organization of Chlorella cells cultivated under space flight conditions in three-component aquatic system has been studied. Comparison of the experimental cells with that of the controls revealed certain rearrangements of cell organelles particularly, a reduction in the amount of reserve polysaccharides in chloroplasts, increase of cell vacuolization and mitochondrion volume, complication configuration of plasmalemma evaginations and invaginations, and also disturbances in the process of cytokinesis. More over an increase in the number of Chlorella cells infected by bacteria was shown in the experimental variant. No considerable differences were established in the growth characteristics of the experimental and control populations. A comparative cytological analysis revealed general regularities of organelles in Chlorella cells cultivated under space flight condition in the uni- and multicomponent systems.

摘要

对在太空飞行条件下于三组分水生系统中培养的小球藻细胞的亚微观结构进行了研究。将实验细胞与对照细胞进行比较，发现细胞器有一定的重新排列，特别是叶绿体中储备多糖数量减少、细胞空泡化增加以及线粒体体积增大、质膜内陷和外突的构型复杂化，还有胞质分裂过程受到干扰。此外，实验变体中显示受细菌感染的小球藻细胞数量增加。实验群体和对照群体的生长特性未发现显著差异。比较细胞学分析揭示了在单组分和多组分系统中于太空飞行条件下培养的小球藻细胞中细胞器的一般规律。