The Soviet journal of developmental biology最新文献

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The effect of analogs of juvenile hormone on the morphogenesis of the flight apparatus of the house cricket. 幼体激素类似物对蟋蟀飞行器官形态发生的影响。
O M Bocharova-Messner, I V Chudakova, V Y Novak
{"title":"The effect of analogs of juvenile hormone on the morphogenesis of the flight apparatus of the house cricket.","authors":"O M Bocharova-Messner,&nbsp;I V Chudakova,&nbsp;V Y Novak","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The morphogenetic action of juvenile hormone (JH) on the development of the flight apparatus was studied on the house cricket (Acheta domestica L.). Simulation of an excess of JH, created by treatment of nymphs of the last instar with analogs of JH, led to the formation of adultoids with various degrees of expression of the imaginal characteristics in the structure of the elytrons and wings. An analysis of the state of the wings, wing base, and wing muscles in the adultoids shows that the flight apparatus develops as an integral functioning system, and not as a result of independent imagination of its individual constituents. The great importance of inversion of the wings was demonstrated: imaginal characteristics absent before inversion were expressed to one degree or another in all parts of the flight apparatus after inversions. The imaginization of the wing musculature is associated primarily with the degree of formation of the wing base, determining the degree of mobility of the wings. It was proposed that the morphogenetic action of JH and its analogs be evaluated on the basis not so much of the length of the wings as the degree of formation of the flight apparatus, which is most simply judged according to the mobility of the wings. It was proposed that the morphogenetic action of JH and its analogs be evaluated on the basis not so much of the length of the wings as the degree of formation of the flight apparatus, which is most simply judged according to the mobility of the wings and their position at rest.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"115-21"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303393","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
Diurnal rhythms of cell reproduction and of some morphometric indices in the thyroid gland of young rats. 幼龄大鼠甲状腺细胞繁殖的日节律及一些形态计量指标。
Y A Romanov, L I Stepanova
{"title":"Diurnal rhythms of cell reproduction and of some morphometric indices in the thyroid gland of young rats.","authors":"Y A Romanov,&nbsp;L I Stepanova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Monophasic diurnal rhythms of mitosis and DNA synthesis are characteristic of the thyroid gland epithelium of young rats (unlike adults). It is postulated that the diurnal rhythm of mitotic activity is under the influence of a mechanism synchronizing the cell population before mitosis. With an increase in thyrocyte differentiation the number of mitoses and of DNA-synthesizing cells falls. Diurnal changes in the duration of mitosis affect the dynamics of the diurnal rhythm of mitotic activity. Changes in the height of the follicular cells during the 24-hour period are evidence of a diurnal rhythm of thyroid function in young rats.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"127-33"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12345567","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
Study of the specificity of the action of adhesive factors isolated from the liver and lungs of adult mice and rats. 从成年小鼠和大鼠肝和肺中分离的粘附因子作用特异性的研究。
E A Modyanova
{"title":"Study of the specificity of the action of adhesive factors isolated from the liver and lungs of adult mice and rats.","authors":"E A Modyanova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Adhesive factors (AF), enhancing the cohesion of cells in liver and lung tissues, were isolated from the liquid obtained in the incubation of pieces of liver and lung of adult mice and rats in calcium-free salt solution. The action of AF was evaluated according to their influence on the strength of cohesion of the cells in the lung and liver, measured with a micromanipulator, and according to the number of cells isolated from the liver by dispersion. The presence of tissue specificity and the absence of species specificity of the action of AF on the tissues of adult animals was demonstrated.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"172-5"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303223","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 mathematical model of phytochrome - the receptor of photomorphogenetic processes in plants. 植物光形态发生过程受体光敏色素的数学模型。
A Y Gammerman, L Y Fukshanskii
{"title":"A mathematical model of phytochrome - the receptor of photomorphogenetic processes in plants.","authors":"A Y Gammerman,&nbsp;L Y Fukshanskii","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A mathematical model of the phytochrome pigment system is considered, the parameters of which are determined by solving the problem of identification on the basis of the dynamic characteristics of the photoreceptor obtained experimentally. The model is based on two photochemical and four dark reactions occurring in the phytochrome system. A study of the model permitted establishing the dynamics of processes in the photoreceptor and determining the relation between the behavior of the active form of phytochrome and the intensity and spectral distribution of light. The results of the investigation allows explaining of the high-energy reaction of photomorphogenesis as a consequence of the dynamics of phytochrome processes.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"108-14"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303392","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
Some peculiarities of the expression of exterases in larvae and adult individuals of Drosophila virilis. 果蝇幼虫和成虫外生酶表达的一些特点。
L I Korochkin, N M Matveeva
{"title":"Some peculiarities of the expression of exterases in larvae and adult individuals of Drosophila virilis.","authors":"L I Korochkin,&nbsp;N M Matveeva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>It was discovered that certain isoenzymes of esterases in Drosophila virilis are represented by fast and slow subfractions. In various inbred lines, pecularities are observed in the distribution of activity between these subfractions, so that in adult individuals of some lines, the fast subfraction is the most active, and in others the slow subfraction. During the process of ontogenesis, a redistribution of activity between the two subfractions is observed.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"176-8"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303224","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
Investigation of the ultrastructure of DNA-synthesizing cells of a focus of aseptic inflammation. 无菌性炎症灶dna合成细胞超微结构的研究。
G P Satdykova
{"title":"Investigation of the ultrastructure of DNA-synthesizing cells of a focus of aseptic inflammation.","authors":"G P Satdykova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The ultrastructure of cells of a focus of aseptic inflammation, synthesizing DNA (incorporating H3-thymidine) was studied with the aid of a combination of methods of light autoradiography and plane-parallel embedding. It was shown that these cells have the ultrastructure specific for collagen-synthesizing cells (fibroblasts): a well-developed granular endoplasmic reticulum with a large number of polyribosomes, an extensive Golgi complex, a characteristic structure of the mitochondria, and a large number of cytoplasmic microfibers. Collagen fibers are detected on the surface of the cells.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"163-5"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12303398","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
Adaptive changes in degree of eye reduction in eyeless mutants of Drosophila melanogaster after thermal shock during the critical periods of faceted eye development. 在多面眼发育的关键时期,黑腹果蝇无眼突变体在热休克后眼睛缩小程度的适应性变化。
P G Svetlov, G F Korsakova
{"title":"Adaptive changes in degree of eye reduction in eyeless mutants of Drosophila melanogaster after thermal shock during the critical periods of faceted eye development.","authors":"P G Svetlov,&nbsp;G F Korsakova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Brief heating of the oocytes and larvae of eyeless mutants during the critical periods of faceted-eye development caused an increase in the thermal sensitivity of the eye rudiments, which led to an increase in the number of one-eyed individuals among the flies that hatched. These changes eye development were transmitted through a number of successive generations without exposure to additional thermal shock, by maternal inheritance. It was established that repeated heating of oocytes and larvae of eyeless mutants whose ancestors had been subjected to similar heating during the same stages of development caused a decrease rather than the expected increase in thermal sensitivity, i.e., there was an adaptive increase in the thermostability of the eye rudiments. Thus, the effect of reheating was the opposite of that of the original heating.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 2","pages":"160-2"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11991935","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
Cultivation of the notochord of a Balanoglossus species in diffusion chambers. 扩散室中舌藻脊索的培养。
T P Evgen'eva
{"title":"Cultivation of the notochord of a Balanoglossus species in diffusion chambers.","authors":"T P Evgen'eva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Minute fragments of the notochord of Balanoglossus sp. were cultivated in diffusion chambers implanted into the arm cavities of starfish, Asterias rubens. The surface properties of the cells migrating from these fragments and the intercellular contacts between them were examined in a scanning electron microscope type \"Stereoscan.\" The two types of cell constituting the initial notochordal transplantate migrated already on the 2nd day of cultivation; these were rather large (10-12 mu) round cells with characteristic outgrowths, which grouped into colonies already on the 3rd-5th day of growth in culture, and small cells (5-7 mu) of elongated shape that at early cultivation stages were found scattered in a disorderly manner over the filter. At later cultivation stages (days 10-12), the small cells migrated toward the colonies of round notochordal cells and penetrated inside them. As a result, large colonies (counting 100 or more cells) developed in the cultures, their arrangement resembling that of the donor animal's notochord.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 1","pages":"66-9"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12293471","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
Proliferation of cells of pigmentary epithelium of retina in adult newts at late regeneration stages after retinectomy. 视网膜切除术后再生晚期成年蝾螈视网膜色素上皮细胞的增殖。
V I Mitashov
{"title":"Proliferation of cells of pigmentary epithelium of retina in adult newts at late regeneration stages after retinectomy.","authors":"V I Mitashov","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The proliferation of pigmentary-epithelium cells after they have given rise to cells of the regenerating retina is associated with the growth of the pigmentary epithelium and not with additions to the regenerating retina. The proliferative activity of pigmentary-epithelium cells during this period takes place against a background of simultaneous synthesis of specific proteins.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 1","pages":"70-3"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12293472","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
Immunohistochemical study of alpha-fetoprotein and serum albumin in the early postnatal period in mice. 小鼠产后早期甲胎蛋白和血清白蛋白的免疫组织化学研究。
L Y Shipova, A I Gusev, N V Engel'gardt
{"title":"Immunohistochemical study of alpha-fetoprotein and serum albumin in the early postnatal period in mice.","authors":"L Y Shipova,&nbsp;A I Gusev,&nbsp;N V Engel'gardt","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The localization of the embryo-specific protein alpha-fetoprotein (alpha-FP) and serum albumin in the organs of mice in the first three weeks of life was studied. Using a reaction of immunofluorescence, alpha-FP was detected in the cytoplasm of the hepatocytes. During the first three days of life it was contained in the overwhelming majority of the hepatocytes, but in different concentrations. Then the fluorescence intensity and number of cells containing alpha-FP decreased sharply, and by the seventh to 12th day such cells remained chiefly close to the central veins. In a simultaneous determination of alpha-FP and albumin in the liver, cells containing only alpha-FP, alpha-FP and albumin, and only albumin were detected. With increasing age of the animals, the number of the latter cells increased. On slices of other organs, alpha-FP, albumin, and transferrin were present in the same structures of gamma-globulin.</p>","PeriodicalId":76730,"journal":{"name":"The Soviet journal of developmental biology","volume":"5 1","pages":"45-51"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11269249","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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