. Biologisches Zentralblatt. Biology. 134 Eisen, The Chromoplasts and the Cbromioles. I have foimd the chromioles and the chromoplasts in all eells capable of mitosis which 1 have investigated, and I have eome to the conclusion that they are constant Clements in all cells. The leucocyte is of almost identical structiire with the polymorphous spermatogonium. We find in it the scatteied chromioles, and among- them a varying number of chromoplasts, the latter of larger size and more intense staining quality. The lininoplast, or true nucleolns, is, according to my conclusions, principally a storag
. Biologisches Zentralblatt. Biology. 134 Eisen, The Chromoplasts and the Cbromioles. I have foimd the chromioles and the chromoplasts in all eells capable of mitosis which 1 have investigated, and I have eome to the conclusion that they are constant Clements in all cells. The leucocyte is of almost identical structiire with the polymorphous spermatogonium. We find in it the scatteied chromioles, and among- them a varying number of chromoplasts, the latter of larger size and more intense staining quality. The lininoplast, or true nucleolns, is, according to my conclusions, principally a storage reservoir of linin granules, and has somewhat the same relative influence on the linin gramiles as the chromoplasts have on the chromioles. 2. chromioles supported by linin chromoplasts lininoplasts. Ducleus eaders 2. Polymorphous spermatogouimn. Two chromoplasts connected with 12 Icaders or incipient chromosomes. Each leader with chromomeres containing 3 chro- mioles each. Three lininoplasts. Agaiu, regarding the chromioles: These minute bodies are the only constant parts of the chromo- somes. The formation of the chromosomes is due to an independent process, so to say, presided over by the chromoplast, and in every respect independent of the centrosomes. The mitosis as a whole is the result of two parallel but independent processes, which ruu parallel for a time, but touch at certain points and aid each other in accom- plishing their mutual ultimate purpose. In other words, the chromo- plasts prepare and form the chromosomes, the centrosomes accomplish their proper mitosis. The number of the chromioles is constant in every species. In Batrachoseps the perfect chromosome contains six chromomeres, three in each limb of the chromosome. Each chromomere contains six chro- mioles, which makes for each chromosome 3G chromioles, and for the whole nucleus 432 Please note that these images are extracted from scanned page images that may have been digitally enhanced for r
Size: 1713px × 1458px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorro, bookcentury1800, bookdecade1890, booksubjectbiology
