ISSN:
1615-6102
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Summary Ultrastructural changes of organelles, especially those of mitochondria in rice seedlings germinated under strictly anaerobic conditions were investigated. The embryos of dry seeds had slightly modified mitochondria, characterized by an electron transparent matrix with few cristae and electron opaque patches. These mitochondria developed normally for 48 hours irrespective of whether oxygen was present or not. However, after 72 hours' germination under anaerobic conditions vesiculation of the cristae developed and progressed greatly for the subsequent 24 hours and most of the spaces in the mitochondrion became occupied with vacuolated cristae. Vesiculation seemed to be the effect of cessation of energy supply from the mitochondria themselves. Ultrastructural changes of other organelles such as the plastids and endoplasmic reticulum were also observed after 96 hours under anaerobic conditions.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01275595
Permalink
