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[Reproductive strategy of the alien fishhook waterflea Cercopagis pengoi (Ostroumov, 1891) in the Baltic Sea (by example of the Vistula Lagoon)]. [波罗的海(以维斯瓦泻湖为例)外来鱼钩水蚤的繁殖策略(Ostroumov, 1891)]。
Ontogenez Pub Date : 2014-09-01
Iu Iu Polunina
{"title":"[Reproductive strategy of the alien fishhook waterflea Cercopagis pengoi (Ostroumov, 1891) in the Baltic Sea (by example of the Vistula Lagoon)].","authors":"Iu Iu Polunina","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Early and prolonged bisexual reproduction has been registered in the population of Cercopagis pengoi within the Vistula Lagoon relative to its original habitat. Decrease in the role of parthenogenesis and increase in the frequency of gamogenesis have been registered in the population under study. It has been accompanied by reduction in the average number of parthenogenetic eggs per female and increase in the production ofgamogenetic eggs relative to the Caspian Sea.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 5","pages":"341-8"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33113868","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
[Sponge cell reaggregation: mechanisms and dynamics of the process]. [海绵细胞再聚集:过程的机制和动力学]。
Ontogenez Pub Date : 2014-07-01
A I Lavrov, I A Kosevich
{"title":"[Sponge cell reaggregation: mechanisms and dynamics of the process].","authors":"A I Lavrov,&nbsp;I A Kosevich","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sponges (Porifera) are lower metazoans whose organization is characterized by a high plasticity of anatomical and cellular structures. One of the manifestations of this plasticity is the ability of sponge cells to reaggregate after dissociation of tissues. This review brings together the available data on the reaggregation of sponge cells that have been obtained to date since the beginning of the 20th century. It considers the behavior of dissociated cells in suspension, the mechanisms and factors involved in reaggregation, and the rate and stages of this process in different representatives of this phylum. In addition, this review provides information about the histological structure of multicellular aggregates formed during reaggregation of cells and the regenerative morphogenetic processes leading to the formation of normal sponges from these multicellular aggregates.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 4","pages":"250-71"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33424018","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
[The role of genetic control and self-assembly in gametophyte sporoderm ontogeny: hypotheses and experiment]. 遗传控制和自组装在配子体孢子层个体发育中的作用:假设和实验。
Ontogenez Pub Date : 2014-07-01
N I Gabaraeva
{"title":"[The role of genetic control and self-assembly in gametophyte sporoderm ontogeny: hypotheses and experiment].","authors":"N I Gabaraeva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A review of our own and literature data on mechanisms of sporoderm development (of the wall of pollen grains and spores) is represented here in the light of colloidal relationships-so-called micellar hypothesis (Gabarayeva and Hemsley, 2006; Hemsley and Gabarayeva, 2007) which suggests the participation of self-assembly in development. The development of the exines (ofsporopollenin-containing part of the sporo- derm) in 5 species from remote taxa has been traced in detail and interpreted as a micellar sequence. The experimental modelling of exine-like structures, carried out in vitro where physico-chemical regularities of colloidal systems (hydrophobic relationships) were the driving motive, is a strong evidence of the relevance of the micellar hypothesis and emphasizes a promising character of these studies. The correlation between ge- nomic control and self-assembly in arrangement of complex biological walls is discussed.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 4","pages":"219-39"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33424016","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
[Ontogenetic diversity of colonies and intercellular cytoplasmic bridges in the algae of the genuis Volvox]. [藻属藻类中菌落和胞质间桥的个体发生多样性]。
Ontogenez Pub Date : 2014-07-01
A G Desnitskiĭ
{"title":"[Ontogenetic diversity of colonies and intercellular cytoplasmic bridges in the algae of the genuis Volvox].","authors":"A G Desnitskiĭ","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In all representatives of the genus Volvox, cells of cleaving embryos are connected by cytoplasmic bridges, which play an important role in the process of young colony inversion. However, during subsequent development, the intercellular bridges are retained not in all species of Volvox; the occurrence of the bridges in an adult colony correlates withthe small size of mature gonidia (asexual reproductive cells) and with the presence of cell growth in the intervals between divisions. This complex of ontogenetic features is derived and arises independently in three evolutionary lineages of colonial volvocine algae. A putative role of the syncytial state of adult colonies for the evolution of developmental cycles in Volvox is discussed.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 4","pages":"280-4"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33428611","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
[Low expression of activin A in mouse and human embryonic teratocarcinoma cells]. 激活素A在小鼠和人胚胎畸胎癌细胞中的低表达。
Ontogenez Pub Date : 2014-07-01
O F Gordeeva
{"title":"[Low expression of activin A in mouse and human embryonic teratocarcinoma cells].","authors":"O F Gordeeva","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>TGFP3 family factors play an important role in regulating the balance of self-renewal and differentiation of mouse and human pluripotent stem and embryonic teratocarcinoma cells. The expression patterns of TGFbeta family signaling ligands and functional roles of these signaling pathways differ significantly in mouse and human embryonic stem cells, but the activity and functional role of these factors in mouse and human embryonic teratocarcinoma cells were not sufficiently investigated. Comparative quantitative real-time PCR analysis of the expression of TGF@[beta] family factors in mouse embryonic stem, embryonic germ, and embryonic teratocarcinoma cells showed that embryonic teratocarcinoma cells express lower ActivinA than pluripotent stem cells but similar levels of factors Nodal, Lefty 1, TGFbeta1, BMP4, and GDF3. In human nullipotent embryonic teratocarcinoma PA-1 cells, most factors of the TGFbeta family (ACTIVINA, NODAL, LEFTY 1, BMP4, and GDF3) are expressed at lower levels than in human embryonic stem cells: Thus, in mouse and human nullipotent teratocarcinoma cells, theexpression of ActivinA is significantly reduced com- pared ivith embryonic stem cells. Presumably, these differences may be associated with changes in the functional activity of the respective signaling pathways and deregulation of proliferative and antiproliferative mechanisms in embryonic teratocarcinoma cells.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 4","pages":"272-9"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33428610","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
[Neurulation continues: the parade commander is...apical constriction]. [神经继续:阅兵指挥员是……顶端收缩)。
Ontogenez Pub Date : 2014-07-01
V Korzh
{"title":"[Neurulation continues: the parade commander is...apical constriction].","authors":"V Korzh","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Neurulation is traditionally defined as the process of closure of the neural tube. New data have shown that the major driving forces ofneurulation continue to operate with the closure of the neural tube, at least until the central canal of the neural tube has formed. Owing to this, the paper proposes to distinguish two periods of neurulation. According to these notions, early neurulation corresponds to the period of closure of the neural tube, and late neurulation corresponds to the period of formation of the central canal. Examples of neural tube defects that affect late neurulation are discussed.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 4","pages":"240-9"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33424017","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
[Homeostatic mechanisms of biological systems: development homeostasis]. 生物系统的内稳态机制:发育内稳态。
Ontogenez Pub Date : 2014-05-01
V M Zakharov, I E Trofimov
{"title":"[Homeostatic mechanisms of biological systems: development homeostasis].","authors":"V M Zakharov,&nbsp;I E Trofimov","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Homeostasis as an ability to maintain structural-functional parameters of the system at the required level is a basic characteristic for providing the stability of any biological system (from biosphere and separate ecosystems to communities, populations, and individuals). The study of homeostatic-mechanisms that provide the stability ofbiological systems is the main task for solving many theoretical and practical questions. The search for criteria of homeostasis estimation and study of homeostatic mechanism ratio at different levels are principally important in this direction. Estimation of the role of homeostatic mechanisms of the organism and population for providing the stability of biological systems of different levels when using the approach based on estimation of the population state from ontogenetic positions (population developmental biology) seems promising.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 3","pages":"138-50"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33087121","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
[Homeostatic mechanisms of biological systems: formulation of the problem]. [生物系统的内稳态机制:问题的表述]。
Ontogenez Pub Date : 2014-05-01
V M Zakharov
{"title":"[Homeostatic mechanisms of biological systems: formulation of the problem].","authors":"V M Zakharov","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 3","pages":"137"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33087118","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
[Scale invariance of biosystems: from embryo to community]. [生物系统尺度不变性:从胚胎到群落]。
Ontogenez Pub Date : 2014-05-01
V N Iakimov, L A Solntsev, G S rozenberg, D I Iudin, D B Gelashvili
{"title":"[Scale invariance of biosystems: from embryo to community].","authors":"V N Iakimov,&nbsp;L A Solntsev,&nbsp;G S rozenberg,&nbsp;D I Iudin,&nbsp;D B Gelashvili","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Abstract-Phenomena having the property of a scale invariance (that is, maintaining invariable structure in certain range of scales) are typical for biosystems of different levels. In this review, main manifestations of the scale-invariant phenomena at different levels of biological organization (including ontogenetic aspects) are stated, and the reasons of such wide distribution of fractal structures in biology are discussed. Almost all biological systems can be described in terms of synergetics as open nonequilibrium systems that exist due to substance and energy flow passing through them. The phenomenon of self-organization is typical for such dissipative systems; maintenance of energy flow requires the existence of complex structures that emerge spontaneously in the presence of the appropriate gradient. Critical systems, which form as a results of their activity scale-invariant structures (that are a kind of distribution channels), are optimal relative to the efficiency of substance and energy distribution. Thus, scale invariance of biological phenomena is a natural consequence of their dissipative nature.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 3","pages":"207-16"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33086551","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
[Morphological diversity in the postnatal skull development in representatives of two families of rodents (Spalacidae, Castoridae, Rodentia)]. [两科啮齿类(裂齿科，啮齿科，啮齿目)的代表动物出生后颅骨发育的形态学多样性]。
Ontogenez Pub Date : 2014-05-01
A Iu Puzachenko, N P Korablev
{"title":"[Morphological diversity in the postnatal skull development in representatives of two families of rodents (Spalacidae, Castoridae, Rodentia)].","authors":"A Iu Puzachenko,&nbsp;N P Korablev","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This is the first study to describe the results of measurement of three information parameters of morphological diversity (entropy, the measure of organization, and the Kullback-Leibler divergence) in the course of postnatal development of the skull in the populations of two rodent species (greater mole rat (Spalax microphthalmus Guld.) and Eurasian beaver (Castor fiber (L.)). The terms \"morphosystem\" and \"morphological space\" and its structure are introduced. Within the framework of the developed approach, \"morphological diversity\" is considered as a variable associated with the morphological space structure. Testing the hypothesis of the dominance of self-organization processes and an increase in the organization of the morphological diversity of the skull in the course ofontogeny showed its inconsistency. The morphosystem of the skull of the studied species undergoes transitions between more organized and less organized states, periodically approaching and departing from the \"steady state.\" Such dynamics characterizes the morphosystem of the skull as a dynamic and nonlinear system.</p>","PeriodicalId":19673,"journal":{"name":"Ontogenez","volume":"45 3","pages":"187-200"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33087125","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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