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The Soviet journal of developmental biology最新文献

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Connection between the mitochondria and endoplasmic reticulum in oocytes of loach (Misgurnus fossilis L.) 泥鳅卵母细胞线粒体与内质网的关系
The Soviet journal of developmental biology Pub Date : 1975-07-01
N D Ozernyuk, L R Pal'mbakh
{"title":"Connection between the mitochondria and endoplasmic reticulum in oocytes of loach (Misgurnus fossilis L.)","authors":"N D Ozernyuk,&nbsp;L R Pal'mbakh","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A considerable number of mitochondria (10-20 percent) are closely connected with the granular endoplasmic reticulum at the early stages of oogenesis in loach. The number of ribosomes on sections of the endoplasmic reticulum turned toward the mitochondria is considerably greater than on other sectors of the membranes. The work discusses the role played by contacts between the mitochondria and the granular endoplasmic reticulum in the biogenesis of oocyte mitochondria at the early stages of oogenesis.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 4","pages":"356-9"},"PeriodicalIF":0.0,"publicationDate":"1975-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12309380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Number of cells in diapausing silkworm embryos with different ploidies. 不同倍性家蚕滞育胚的细胞数目。
The Soviet journal of developmental biology Pub Date : 1975-07-01
V V Klimenko
{"title":"Number of cells in diapausing silkworm embryos with different ploidies.","authors":"V V Klimenko","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The number of cells in diapausing silkworm embryos of different ploidies was determined. Thermal activation was shown to lead to a decrease in the number of cells in parthenogenetic embryos in comparison with normal, zygotic development. The number of cells in the embryo is a direct function of egg volume and a reciprocal function of embryo ploidy and is affected by the maternal genotype.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 4","pages":"315-9"},"PeriodicalIF":0.0,"publicationDate":"1975-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12346962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glycogen content in the adrenals and liver of rat embryos depending on the level of adrenocorticotropic functions. 大鼠胚胎肾上腺和肝脏中糖原含量与促肾上腺皮质功能水平的关系。
The Soviet journal of developmental biology Pub Date : 1975-07-01
O N Rumyantseva, M S Mitskevich
{"title":"Glycogen content in the adrenals and liver of rat embryos depending on the level of adrenocorticotropic functions.","authors":"O N Rumyantseva,&nbsp;M S Mitskevich","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The functional state of the adrenals of rats during prenatal development was studied. The accumulation of glycogen in the adrenals and liver in 15.5-21.5-day old embryos was used as the index. The maximum glycogen concentration in the adrenals and the minimum in the liver were detected in 15.5-16.5-day embryos, i.e., before the adrenals had begun to produce glucocorticoids. A sharp decrease in glycogen in the adrenals was observed in 17.5-day embryos, and an appreciable accumulation in the liver in 18.5-day embryos, which coincides with the beginning of the glucocorticoid function. Decapitation and encephalectomy performed at an age of 17.5-19.5 days of development of the embryos, were invariably accompanied by a significant increase in the glycogen content in the adrenals and a decrease in its level in the liver in the case of investigation after two days. This indicates an active participation of the hypothalamo-pituitary system in the regulation of the adrenocortical function in the late days of embryonic development.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 4","pages":"327-35"},"PeriodicalIF":0.0,"publicationDate":"1975-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11383599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adenosine triphosphatase in the embryonic development of the loach. 泥鳅胚胎发育中的腺苷三磷酸酶。
The Soviet journal of developmental biology Pub Date : 1975-07-01
D R Beritashvili, T V Kutateladze, D O Margiani, K A Kafiani
{"title":"Adenosine triphosphatase in the embryonic development of the loach.","authors":"D R Beritashvili,&nbsp;T V Kutateladze,&nbsp;D O Margiani,&nbsp;K A Kafiani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The ATPase (ATP-phosphohydrolase) activity of homogenates of eggs of the loach Misgurnus fossilis L. was investigated at various stages of development. Mg-2+- and Ca2- minus 2+-stimulated ATPases are the predominant forms of ATPase activity in the egg, and their level is almost constant during development. The loach egg also contains (Na-+--K-+)-dependent ATPase, which is maximally active at pH 6.85 and at a ratio Na-+:K-+ Equals 5:1. This activity is negligible or absent in homogenates of unfertilized eggs, increases during cleavage, but disappears at the end of the period of cleavage. After this, the (Na-+--K-+)-ATPase activity increases all the way up to the end of the period studied (the gastrula stage)mthe results are discussed in connection with the literature data on changes in ionic homeostasis and other characteristics during early embryogenesis.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 4","pages":"320-6"},"PeriodicalIF":0.0,"publicationDate":"1975-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11450794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid changes in shape and cell architecture of isolated fragments of amphibian embryonic tissues as an experimental model of morphogenesis. 两栖动物胚胎组织分离片段的形状和细胞结构的快速变化作为形态发生的实验模型。
The Soviet journal of developmental biology Pub Date : 1975-07-01
L V Belousov, Y G Dorfman, V G Cherdantsev
{"title":"Rapid changes in shape and cell architecture of isolated fragments of amphibian embryonic tissues as an experimental model of morphogenesis.","authors":"L V Belousov,&nbsp;Y G Dorfman,&nbsp;V G Cherdantsev","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Changes in the shape and cell architecture of pieces of epithelial and neural ectoderm, mesoderm, neural tube, and combined ectomesodermal fragments from embryos of Rana temporaria 0-60 min after isolation were studied. The fragments were capable of changing their shape quickly (actually during separation) or after a latent period of several minutes. Rapid deformations were not prevented by cooling or by moderate doses of cyanide; as a rule they were connected with contraction of the surface area of the cells of the fragment and they can be regarded as relaxation to forms with lower mechanical energy. The direction of the deformation usually coincides with the subsequent normal morphogenesis of the particular anlage. Deformations with a latent period are suppressed by cooling and by the addition of cyanide, which lead to an increase in the surface area of individual cells, but they reduce the total surface area of the fragment. The shape of the fragments becomes more complex: they become irregularly twisted, they form folds, and they separate into spherical regions with stretched surfaces (\"drops\"). These processes are connected with the performance of positive mechanical work by the intracellular contractile systems. The reasons why the fragments become more complex in shape are discussed.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 4","pages":"286-93"},"PeriodicalIF":0.0,"publicationDate":"1975-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12259092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of the ectomesenchyme and optic vesicle in mice. 小鼠外切间充质与视神经囊泡的相互作用。
The Soviet journal of developmental biology Pub Date : 1975-07-01
V V Osipov, M P Vakhrusheva
{"title":"Interaction of the ectomesenchyme and optic vesicle in mice.","authors":"V V Osipov,&nbsp;M P Vakhrusheva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We investigated eye development in embryos at the 17, 24, and 31 somite-pair stages homozygous for the two genes white (Mi-wh) and fidget (fi) (Mi-wh/Mi-whfi/fi), single homozygotes (fi/fi and Mi-wh/Mi-wh), and normal mice (the inbred C57 BL/Mib strain). The fi gene retards optic-vesicle growth, while the Mi-wh gene inhibits ectomesenchyme migration. It was shown that the mitotic index of the optic-vesicle wall and the retinal rudiment was considerably higher in Mi-wh/Mi-whfi/fi embryos than in fi/fi embryos and lower than in Mi-wh/Mi-wh and +/+ embryos. Ectomesenchyme affected by the white gene stimulated optic-vesicle growth, to some extent suppressing the effect of the fidget gene. The stimulation of optic-vesicle growth in the double homozygotes led to intensified induction of the lens placode. This indicates that the ectomesenchyme affects the optic rudiment at the optic-vesicle stage.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 4","pages":"353-5"},"PeriodicalIF":0.0,"publicationDate":"1975-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11993475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cell cycles in the early development of axolotl. 蝾螈发育早期的细胞周期。
The Soviet journal of developmental biology Pub Date : 1975-05-01
A G Desnitskii
{"title":"Cell cycles in the early development of axolotl.","authors":"A G Desnitskii","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In axolotl embryos, during the course of development, the generation time increases, chiefly on account of a lengthening of the phase of DNA synthesis, the longest in the cell cycle. At the stages of the middle blastula and early gastrula, the G1 phase is shorter than in the G2 phase, while at the neurula stage, the G1 phase is far longer than the G2 phase. Cells of the chordamesoderm pass through the cycle nonuniformly during gastrulation: a period with a very low index of labeled nuclei and slow entry of cells into the S phase gives way to a period of their intensive entry into the S-phase.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 3","pages":"248-50"},"PeriodicalIF":0.0,"publicationDate":"1975-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Somatic hybridization and oncogenesis; (Mechanism of formation of malignant tumors and metastases by the action of antilymphocytic serum). 体细胞杂交与肿瘤发生;(抗淋巴细胞血清作用下恶性肿瘤形成及转移的机制)。
The Soviet journal of developmental biology Pub Date : 1975-05-01
L B Mekler, S I Artamonova, D A Bodyagin, O B Drize, D M Mkheidze, I V Osechinskii, V N Solenov
{"title":"Somatic hybridization and oncogenesis; (Mechanism of formation of malignant tumors and metastases by the action of antilymphocytic serum).","authors":"L B Mekler,&nbsp;S I Artamonova,&nbsp;D A Bodyagin,&nbsp;O B Drize,&nbsp;D M Mkheidze,&nbsp;I V Osechinskii,&nbsp;V N Solenov","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The results of experiments carried out to test some of the consequences of the earlier general theory of oncogenesis, according to which the malignant tumor cell can arise as a result of somatic hybridization of cells of different organ- and tissue-specificity, are described. In the first series a tumor induced by cellophane film, was grafted into syngeneic and allogeneic mice, and antilymphocytic serum (ALS) was then injected. Metastases occurred only in allogeneic recipients receiving ALS. It was thus shown that the ability of cells of this particular tumor to metastasize is not a property inherent in its cells but is acquired by them as a result of interaction with the recipient organism. In the second series it was shown by two immunological methods that the cells of metastases arising under these conditions contain tissue compatibility antigens of donor and recipient origin, i. e., that they are somatic hybridsmin the third series skin from individuals of another strain was grafted on to mice and ALS was injected; hepatomas developed in 74% of these mice. The theory is used to explain several phenomena of carcinogenesis not explicable by other theories: the phenotypic nature of cell transformation, the causes and nature of the duration of the latent period of tumor development, the mechanism responsible for the ability of tumors to overcome the system of immunological defense, the mechanism of activation of endogeneous oncogenic viruses, etc. Finally an answer is given to the question: what is a tumor?</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 3","pages":"201-19"},"PeriodicalIF":0.0,"publicationDate":"1975-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11382704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A modified Robertson's equation of animal growth. 修正的罗伯逊动物生长方程。
The Soviet journal of developmental biology Pub Date : 1975-05-01
B Y Ginis, N S Shagimardanov, A I Zotin
{"title":"A modified Robertson's equation of animal growth.","authors":"B Y Ginis,&nbsp;N S Shagimardanov,&nbsp;A I Zotin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A growth equation is presented, differing from Robertson's equation only in its constnats. It is shown that this equation satisfactorily describes the growth of birds and mammals.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 3","pages":"245-7"},"PeriodicalIF":0.0,"publicationDate":"1975-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transplantation of nuclei from growing oocytes into fully grown enucleated sturgeon oocytes. 将生长中的卵母细胞的细胞核移植到完全发育的去核鲟鱼卵母细胞中。
The Soviet journal of developmental biology Pub Date : 1975-05-01
L A Nikitina
{"title":"Transplantation of nuclei from growing oocytes into fully grown enucleated sturgeon oocytes.","authors":"L A Nikitina","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Experiments involving enucleation of oocytes and transplantation of germinal vesicles showed that, at the start of the period of greatest growth, the oocyte caryoplasm already contains the substances necessary to make the cytoplasm capable of cytotomy.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 3","pages":"251-4"},"PeriodicalIF":0.0,"publicationDate":"1975-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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