The origin of eukaryotes: the difference between prokaryotic and eukaryotic cells Eukaryotes have long been thought to have arisen by evolving a nucleus, endomembrane, and cytoskeleton. In contrast, it was recently proposed that the firs... T Vellai,G Vida - 《Proceedings of the Royal Society B...
The PHBs, also referred to as carbonosomes, belong to a large group of similar structures called polyhydroxyalkanoates (PHA), which are supposedly formed in all the major prokaryotic classes organisms to store carbon and energy (Anderson and Dawes, 1990;Steinbüchel and Valentin, 1995;Sudesh ...
Cells that were stained with PI were also stained with YOPRO-1 (Fig. 2b), whereas live cells were not stained (compare Fig. 2a with Fig. 2b). However, when the samples were processed for microscopy in a more rapid manner (within seconds instead of minutes), the dying cells in the ...
once the dying MI cells disintegrated6, while live cells grew out to form non-septated multinucleated hyphae (Fig. 2d). This indicates that the regular pattern of YOPRO-1/PI staining observed in the MI hyphae is attributable to the nature of this mycelium, which differs from that...
This contrasts with the normal case in prokaryotic cells such as E. coli where DNA does not condense during cell division. It suggests that either the nucleoid remains condensed during division or is recondensed after a strand unfolding if that occurs during division. It may be most likely ...
The ability of cells to take up metal and to bioconcentrate them in different inclusions/organelles including their capsule, cell wall, cytoplasm, and polyphosphate bodies was tested. Nine prokaryotic species and two eukaryotic species were used. Among the prokaryotic type of species were ...
Abstract At the turn of the twenty-first century, fundamental changes took place in the understanding of the structure and function of proteins and then in the appreciation of the intracellular space organization. A rather mechanistic model of the organization of living matter, where the function of...