Log in

Relevant bibliographies by topics / Transport des gametes / Journal articles

To see the other types of publications on this topic, follow the link: Transport des gametes.

Journal articles on the topic 'Transport des gametes'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Transport des gametes.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Pan, Junmin, and William J. Snell. "Kinesin-II Is Required for Flagellar Sensory Transduction during Fertilization in Chlamydomonas." Molecular Biology of the Cell 13, no. 4 (2002): 1417–26. http://dx.doi.org/10.1091/mbc.01-11-0531.

Full text

Abstract:

The assembly and maintenance of eucaryotic flagella and cilia depend on the microtubule motor, kinesin-II. This plus end-directed motor carries intraflagellar transport particles from the base to the tip of the organelle, where structural components of the axoneme are assembled. Here we test the idea that kinesin-II also is essential for signal transduction. When mating-type plus (mt+) and mating-type minus (mt−) gametes of the unicellular green algaChlamydomonas are mixed together, binding interactions between mt+ and mt− flagellar adhesion molecules, the agglutinins, initiate a signaling pat

APA, Harvard, Vancouver, ISO, and other styles

2

Russell, Scott D. "Attraction and transport of male gametes for fertilization." Sexual Plant Reproduction 9, no. 6 (1996): 337–42. http://dx.doi.org/10.1007/bf02441952.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Russell, Scott D. "Attraction and transport of male gametes for fertilization." Sexual Plant Reproduction 9, no. 6 (1996): 337–42. http://dx.doi.org/10.1007/s004970050052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Tomson, A. M., R. Demets, E. A. van Spronsen, G. J. Brakenhoff, D. Stegwee, and H. van den Ende. "Turnover and transport of agglutinins in conjugatingChlamydomonas gametes." Protoplasma 155, no. 1-3 (1990): 200–209. http://dx.doi.org/10.1007/bf01322629.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

de Paula, Wilson B. M., Cathy H. Lucas, Ahmed-Noor A. Agip, Gema Vizcay-Barrena, and John F. Allen. "Energy, ageing, fidelity and sex: oocyte mitochondrial DNA as a protected genetic template." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1622 (2013): 20120263. http://dx.doi.org/10.1098/rstb.2012.0263.

Full text

Abstract:

Oxidative phosphorylation couples ATP synthesis to respiratory electron transport. In eukaryotes, this coupling occurs in mitochondria, which carry DNA. Respiratory electron transport in the presence of molecular oxygen generates free radicals, reactive oxygen species (ROS), which are mutagenic. In animals, mutational damage to mitochondrial DNA therefore accumulates within the lifespan of the individual. Fertilization generally requires motility of one gamete, and motility requires ATP. It has been proposed that oxidative phosphorylation is nevertheless absent in the special case of quiescent

APA, Harvard, Vancouver, ISO, and other styles

6

Ezzati, Mohammad, Ovrang Djahanbakhch, Sara Arian, and Bruce R. Carr. "Tubal transport of gametes and embryos: a review of physiology and pathophysiology." Journal of Assisted Reproduction and Genetics 31, no. 10 (2014): 1337–47. http://dx.doi.org/10.1007/s10815-014-0309-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Rinehart, Lisa A. "Storage, transport, and disposition of gametes and embryos: legal issues and practical considerations." Fertility and Sterility 115, no. 2 (2021): 274–81. http://dx.doi.org/10.1016/j.fertnstert.2020.11.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Yoshimoto, Yuka, Yoshihiko Kobayashi, Izabela Woclawek-Potocka, et al. "Local effect of lysophosphatidic acid on prostaglandin production in the bovine oviduct." Reproduction, Fertility and Development 29, no. 5 (2017): 1021. http://dx.doi.org/10.1071/rd15409.

Full text

Abstract:

The mammalian oviduct plays an important role in the fertilisation and transport of gametes and embryo. Prostaglandins (PGs) are local mediators of oviductal functions and are involved in fertilisation and the transport of gametes and embryo. Lysophosphatidic acid (LPA), a kind of phospholipid, is involved in various physiological actions. We hypothesised that LPA regulates PG production in the bovine oviduct. To test this hypothesis, we examined the mRNA expression of LPA receptors (LPAR1–6) and LPA-producing enzymes (ATX, PLA1α, PLA1β) in ampullary and isthmic tissues and in cultured epithel

APA, Harvard, Vancouver, ISO, and other styles

9

Coy, P., F. A. García-Vázquez, P. E. Visconti, and M. Avilés. "Roles of the oviduct in mammalian fertilization." REPRODUCTION 144, no. 6 (2012): 649–60. http://dx.doi.org/10.1530/rep-12-0279.

Full text

Abstract:

The oviduct or Fallopian tube is the anatomical region where every new life begins in mammalian species. After a long journey, the spermatozoa meet the oocyte in the specific site of the oviduct named ampulla and fertilization takes place. The successful fertilization depends on several biological processes that occur in the oviduct some hours before this rendezvous and affect both gametes. Estrogen and progesterone, released from the ovary, orchestrate a series of changes by genomic and nongenomic pathways in the oviductal epithelium affecting gene expression, proteome, and secretion of its c

APA, Harvard, Vancouver, ISO, and other styles

10

Bettinazzi, Stefano, Liliana Milani, Pierre U. Blier, and Sophie Breton. "Bioenergetic consequences of sex-specific mitochondrial DNA evolution." Proceedings of the Royal Society B: Biological Sciences 288, no. 1957 (2021): 20211585. http://dx.doi.org/10.1098/rspb.2021.1585.

Full text

Abstract:

Doubly uniparental inheritance (DUI) represents a notable exception to the general rule of strict maternal inheritance (SMI) of mitochondria in metazoans. This system entails the coexistence of two mitochondrial lineages (F- and M-type) transmitted separately through oocytes and sperm, thence providing an unprecedented opportunity for the mitochondrial genome to evolve adaptively for male functions. In this study, we explored the impact of a sex-specific mitochondrial evolution upon gamete bioenergetics of DUI and SMI bivalve species, comparing the activity of key enzymes of glycolysis, fermen

APA, Harvard, Vancouver, ISO, and other styles

11

Gualtieri, Roberto, Guruprasad Kalthur, Vincenza Barbato, Maddalena Di Nardo, Satish Kumar Adiga, and Riccardo Talevi. "Mitochondrial Dysfunction and Oxidative Stress Caused by Cryopreservation in Reproductive Cells." Antioxidants 10, no. 3 (2021): 337. http://dx.doi.org/10.3390/antiox10030337.

Full text

Abstract:

Mitochondria, fundamental organelles in cell metabolism, and ATP synthesis are responsible for generating reactive oxygen species (ROS), calcium homeostasis, and cell death. Mitochondria produce most ROS, and when levels exceed the antioxidant defenses, oxidative stress (OS) is generated. These changes may eventually impair the electron transport chain, resulting in decreased ATP synthesis, increased ROS production, altered mitochondrial membrane permeability, and disruption of calcium homeostasis. Mitochondria play a key role in the gamete competence to facilitate normal embryo development. H

APA, Harvard, Vancouver, ISO, and other styles

12

Yuan, Shuiqiao, Zhuqing Wang, Hongying Peng, et al. "Oviductal motile cilia are essential for oocyte pickup but dispensable for sperm and embryo transport." Proceedings of the National Academy of Sciences 118, no. 22 (2021): e2102940118. http://dx.doi.org/10.1073/pnas.2102940118.

Full text

Abstract:

Mammalian oviducts play an essential role in female fertility by picking up ovulated oocytes and transporting and nurturing gametes (sperm/oocytes) and early embryos. However, the relative contributions to these functions from various cell types within the oviduct remain controversial. The oviduct in mice deficient in two microRNA (miRNA) clusters (miR-34b/c and miR-449) lacks cilia, thus allowing us to define the physiological role of oviductal motile cilia. Here, we report that the infundibulum without functional motile cilia failed to pick up the ovulated oocytes. In the absence of function

APA, Harvard, Vancouver, ISO, and other styles

13

Almiñana and Bauersachs. "Extracellular Vesicles in the Oviduct: Progress, Challenges and Implications for the Reproductive Success." Bioengineering 6, no. 2 (2019): 32. http://dx.doi.org/10.3390/bioengineering6020032.

Full text

Abstract:

The oviduct is the anatomical part of the female reproductive tract where the early reproductive events take place, from gamete transport, fertilization and early embryo development to the delivery of a competent embryo to the uterus, which can implant and develop to term. The success of all these events rely upon a two-way dialogue between the oviduct (lining epithelium and secretions) and the gametes/embryo(s). Recently, extracellular vesicles (EVs) have been identified as major components of oviductal secretions and pointed to as mediators of the gamete/embryo-maternal interactions. EVs, co

APA, Harvard, Vancouver, ISO, and other styles

14

Simintiras, C., F. L. Courts, and R. G. Sturmey. "123 GENISTEIN TRANSPORT ACROSS THE BOVINE OVIDUCT EPITHELIUM." Reproduction, Fertility and Development 25, no. 1 (2013): 208. http://dx.doi.org/10.1071/rdv25n1ab123.

Full text

Abstract:

The oviduct plays a vital role in regulating the environment surrounding the gametes and early mammalian embryo. However, the permeability of the oviduct to circulating dietary-derived compounds remains relatively unknown. The present study has investigated the barrier properties of the oviduct epithelium in vitro to the movement of genistein, a soya isoflavone and analogue of 17β-estradiol that naturally occurs in the diet and has been reported to exert teratogenic effects. Bovine oviduct epithelial cells (BOECs) were isolated from abattoir-derived reproductive tracts at the mid-luetal phase.

APA, Harvard, Vancouver, ISO, and other styles

15

Scully, D., D. Campion, F. McCartney, S. Reese, and S. Kölle. "5 Transport and cholinergic innervation in the bovine oviduct are dysregulated in cystic ovary disease." Reproduction, Fertility and Development 32, no. 2 (2020): 127. http://dx.doi.org/10.1071/rdv32n2ab5.

Full text

Abstract:

Cystic ovary disease (COD) is one of the most common causes of bovine infertility and affects 7-14% of cows in European herds. The morphological and molecular causes of this disease are largely unknown. Because the oviduct is pivotal to gamete transport, fertilization, and early embryonic development, the aim of this study was to analyse the effects of COD on the function of the oviduct. Oviducts were excised from cows affected by COD (n=29) as well as from healthy cows in mid diestrus (n=20) immediately after slaughter. A unique digital live cell imaging system established in our laboratory w

APA, Harvard, Vancouver, ISO, and other styles

16

Thomas, Florence I. M. "Transport and mixing of gametes in three free-spawning polychaete annelids, Phragmatopoma californica (Fewkes), Sabellaria cementarium (Moore), and Schizobranchia insignis (Bush)." Journal of Experimental Marine Biology and Ecology 179, no. 1 (1994): 11–27. http://dx.doi.org/10.1016/0022-0981(94)90014-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Czarny, N. A., M. S. Harris, and J. C. Rodger. "Dissociation and preservation of preantral follicles and immature oocytes from female dasyurid marsupials." Reproduction, Fertility and Development 21, no. 5 (2009): 640. http://dx.doi.org/10.1071/rd08303.

Full text

Abstract:

The mammalian ovary contains numerous immature preantral follicles that are not dependent on endocrine support, unlike the more mature hormone-dependant antral follicles. Preantral follicles can be enzymatically dissociated to yield immature oocytes that survive sub-zero preservation better as they lack a temperature-sensitive meiotic spindle. These techniques are highly applicable to gamete banking, which is an urgent requirement for Australian carnivorous marsupials as several species have rapidly declining populations and risk extinction. The present study developed protocols for the transp

APA, Harvard, Vancouver, ISO, and other styles

18

Ringleb, J., R. Waurich, G. Wibbelt, W. J. Streich, and K. Jewgenow. "Prolonged storage of epididymal spermatozoa does not affect their capacity to fertilise in vitro-matured domestic cat (Felis catus) oocytes when using ICSI." Reproduction, Fertility and Development 23, no. 6 (2011): 818. http://dx.doi.org/10.1071/rd10192.

Full text

Abstract:

The impact of different storage conditions of epididymal spermatozoa (including prolonged storage, cryopreservation and freeze-drying) on their fertilisation capacity was tested using intracytoplasmic sperm injection (ICSI). This kind of information is urgently needed when applying assisted reproductive technology to endangered felids in zoos. In particular, the utilisation of epididymal spermatozoa of castrated or deceased felids often requires time-consuming transportation and is therefore susceptible to loss of gamete quality. Sperm cells were stored at 4°C for up to 72 h followed by cryopr

APA, Harvard, Vancouver, ISO, and other styles

19

Stefańska, Katarzyna, Ievgenia Kocherova, Sandra Knap, Magdalena Kulus, Piotr Celichowski, and Michal Jeseta. "The genes regulating maintenance of cellular protein location are differentially expressed in porcine epithelial oviductal cells during longterm in vitro cultivation." Medical Journal of Cell Biology 7, no. 2 (2019): 77–85. http://dx.doi.org/10.2478/acb-2019-0010.

Full text

Abstract:

AbstractThe oviduct is a part of female reproductive tract that is essential for successful fertilization and early embryo development. It is lined with epithelium consisting of two types of cells: ciliated and secretory. The primary function of ciliated oviductal epithelial cells (OECs) is to support the transport of gametes and embryos through the ovary, whereas secretory OECs produce components of the oviductal fluid. Undoubtedly, the oviductal epithelium plays a major part in the early aspects of pregnancy development, from providing an optimal environment for gametes and embryos to suppor

APA, Harvard, Vancouver, ISO, and other styles

20

Jimenez, Tamara, Gladis Sánchez, Eva Wertheimer та Gustavo Blanco. "Activity of the Na,K-ATPase α4 isoform is important for membrane potential, intracellular Ca2+, and pH to maintain motility in rat spermatozoa". REPRODUCTION 139, № 5 (2010): 835–45. http://dx.doi.org/10.1530/rep-09-0495.

Full text

Abstract:

While the function of the ubiquitous Na,K-ATPase α1 subunit has been well documented, the role of the sperm-specific α4 isoform of this ion transporter is less known. We have explored the importance of α4 in rat sperm physiology by taking advantage of the high sensitivity of this isoform for the inhibitor ouabain. Using concentrations that selectively block α4 activity, we found ouabain to reduce not only sperm total motility, but also multiple parameters of sperm movement, including progressive motility, straight line, curvilinear, and average path velocities, lateral head displacement, beat

APA, Harvard, Vancouver, ISO, and other styles

21

Pastén-Hidalgo, Karina, Rosaura Hernández-Rivas, Ana Lilia Roa-Espitia, et al. "Presence, processing, and localization of mouse ADAM15 during sperm maturation and the role of its disintegrin domain during sperm–egg binding." REPRODUCTION 136, no. 1 (2008): 41–51. http://dx.doi.org/10.1530/rep-07-0300.

Full text

Abstract:

Successful fertilization requires gametes to complete several stages, beginning with maturation and transport along the male and female reproductive tracts and ending with the interaction between the sperm and the egg. This last step involves sperm–egg adhesion and membrane fusion. ADAMs (disintegrin and metalloprotease domain proteins) are a family of membrane-anchored glycoproteins that are thought to play diverse roles in cell–cell adhesion through their interaction with integrins. This study analyzes the presence, location, processing, and possible role of ADAM15 in mouse sperm. The presen

APA, Harvard, Vancouver, ISO, and other styles

22

Liu, Songshan, Chenxing Zhang, Weicong Yang, et al. "Hybrid Triploid Induced by Megaspore Chromosome Doubling in Jujube (Ziziphus jujuba Mill.) ‘Maya’ and Its Characteristics." Forests 12, no. 2 (2021): 112. http://dx.doi.org/10.3390/f12020112.

Full text

Abstract:

Polyploid breeding is an important strategy for tree improvement because polyploid individuals typically show superior traits, such as improved growth, stress resistance, and superior fruit quality. Artificial induction of chromosome doubling of female gametes is an effective approach to obtain triploid progeny. However, no triploid fruit tree cultivars have been developed using this approach. The objective of this study was to explore the utility of chromosome doubling in female gametes of ‘Maya’ jujube to produce triploid individuals. The temporal relationship between flower bud morphology a

APA, Harvard, Vancouver, ISO, and other styles

23

Chumduri, Cindrilla, and Margherita Y. Turco. "Organoids of the female reproductive tract." Journal of Molecular Medicine 99, no. 4 (2021): 531–53. http://dx.doi.org/10.1007/s00109-020-02028-0.

Full text

Abstract:

AbstractHealthy functioning of the female reproductive tract (FRT) depends on balanced and dynamic regulation by hormones during the menstrual cycle, pregnancy and childbirth. The mucosal epithelial lining of different regions of the FRT—ovaries, fallopian tubes, uterus, cervix and vagina—facilitates the selective transport of gametes and successful transfer of the zygote to the uterus where it implants and pregnancy takes place. It also prevents pathogen entry. Recent developments in three-dimensional (3D) organoid systems from the FRT now provide crucial experimental models that recapitulate

APA, Harvard, Vancouver, ISO, and other styles

24

Hogarth, C. A., D. A. Jans, and K. L. Loveland. "210.Regulated expression of mRNAs encoding nuclear transport proteins during spermatogenesis." Reproduction, Fertility and Development 16, no. 9 (2004): 210. http://dx.doi.org/10.1071/srb04abs210.

Full text

Abstract:

During spermatogenesis, the germ line stem cells undergo a complex series of cellular transitions to form mature male gametes. These transitions require regulated nucleocytoplasmic shuttling of transcription factors and cell cycle regulators, mediated in part by proteins known as importins. The importins bind to specific cargo proteins in the cytoplasm and transport them into the nucleus via interactions with components of the nuclear pore. There are two families of importins, termed the αs and the βs, with five different importin α members identified in the mouse genome. In this study, we exa

APA, Harvard, Vancouver, ISO, and other styles

25

Bedford, J. Michael. "Singular features of fertilization and their impact on the male reproductive system in eutherian mammals." REPRODUCTION 147, no. 2 (2014): R43—R52. http://dx.doi.org/10.1530/rep-13-0436.

Full text

Abstract:

Therian (marsupial and eutherian) mammals have evolved a suite of novel reproductive features – seen variously in their gametes, the steps of fertilization and the male reproductive tract – whose adaptive significance remains unclear. Present evidence for the better-understood eutherian mammals suggests that the ‘prime mover’ in their evolution has been the character of the egg coat, with other such features being adaptations to the consequences of this. Its elastic thickness allows the zona pellucida to stretch to a variable degree and yet remain around the blastocyst during much or all of it

APA, Harvard, Vancouver, ISO, and other styles

26

Goudet, Ghylène. "Fertilisation in the horse and paracrine signalling in the oviduct." Reproduction, Fertility and Development 23, no. 8 (2011): 941. http://dx.doi.org/10.1071/rd10285.

Full text

Abstract:

The mammalian oviduct plays a crucial role in the preparation of gametes for fertilisation (transport and final maturation) and fertilisation itself. An increasing number of studies offers a comprehensive overview of the functions of the oviduct and its secretions, but this topic has had limited investigation in the horse. Limited data are available on the final oocyte maturation in the equine oviduct. However, in vitro and in vivo systems have been established to analyse the influence of equine oviduct epithelial cells (OEC) during maturation on the potential of oocytes for fertilisation and

APA, Harvard, Vancouver, ISO, and other styles

27

Bongso, Ariff. "Oviductal cells and early conception." Reproductive Medicine Review 4, no. 1 (1995): 31–41. http://dx.doi.org/10.1017/s0962279900001046.

Full text

Abstract:

The ability to bypass the oviduct by fertilizing human oocytes in vitro and then transferring the ensuing embryos into the uterine environment to produce pregnancies that can be carried to term (assisted reproductive technology, ART) has made the real functional significance of the fallopian tube come under debate. The question has been raised as to whether the oviduct is a simple conduit, providing for the transport of gametes and embryos, or whether it has any functional relevance to early conception. In the field of ART, some reports claim that transfer of embryos either to the uterus or to

APA, Harvard, Vancouver, ISO, and other styles

28

Miller, David, Martin Brinkworth, and David Iles. "Paternal DNA packaging in spermatozoa: more than the sum of its parts? DNA, histones, protamines and epigenetics." REPRODUCTION 139, no. 2 (2010): 287–301. http://dx.doi.org/10.1530/rep-09-0281.

Full text

Abstract:

Haploid male germ cells package their DNA into a volume that is typically 10% or less that of a somatic cell nucleus. To achieve this remarkable level of compaction, spermatozoa replace most of their histones with smaller, highly basic arginine and (in eutherians) cysteine rich protamines. One reason for such a high level of compaction is that it may help optimise nuclear shape and hence support the gametes' swimming ability for the long journey across the female reproductive tract to the oocyte. Super-compaction of the genome may confer additional protection from the effects of genotoxic fact

APA, Harvard, Vancouver, ISO, and other styles

29

Isachenko, Evgenia, Gohar Rahimi, Peter Mallmann, Raul Sanchez, and Vladimir Isachenko. "Novel Approaches to the Cryopreservation of Human Spermatozoa: History and Development of the Spermatozoa Vitrification Technology." Journal of Reproductive and Stem Cell Biotechnology 2, no. 2 (2011): 128–45. http://dx.doi.org/10.1177/205891581100200207.

Full text

Abstract:

Cryobiology is very intensively applied in reproductive and veterinary medicine for preservation of gametes, embryos and reproductive tissues. Sub-zero temperatures combined with appropriate cryoprotective agents preserve the physiological and reproductive functions of the cells making long-term storage possible without loss of viability. With the use of cryoprotective agents it has become possible to develop cryopreservation techniques, such as the slow conventional freezing and vitrification that are in use in the present times. In slow controlled-rate conventional freezing extracellular ice

APA, Harvard, Vancouver, ISO, and other styles

30

Kooijman, R., P. de Wildt, S. Beumer, et al. "Wheat germ agglutinin induces mating reactions in Chlamydomonas eugametos by cross-linking agglutinin-associated glycoproteins in the flagellar membrane." Journal of Cell Biology 109, no. 4 (1989): 1677–87. http://dx.doi.org/10.1083/jcb.109.4.1677.

Full text

Abstract:

Species-specific binding between the flagellar surfaces of mating types plus and minus (mt+ and mt-) gametes of Chlamydomonas eugametos is mediated by mating type-specific agglutinins. Their interaction triggers several mating responses that are necessary for cell fusion, such as flagellar twitching, flagellar tip activation, redistribution of agglutinin molecules to the flagellar tip (tipping), and mating structure activation. Earlier, we reported that a monoclonal antibody (mAb 66.3) can induce mating reactions by cross-linking the agglutinins (Homan, W. L., A. Musgrave, H. de Nobel, R. Wagt

APA, Harvard, Vancouver, ISO, and other styles

31

Kobayashi, Yoshihiko, Yuka Yoshimoto, Yuki Yamamoto, Koji Kimura, and Kiyoshi Okuda. "Roles of EDNs in regulating oviductal NO synthesis and smooth muscle motility in cows." Reproduction 151, no. 6 (2016): 615–22. http://dx.doi.org/10.1530/rep-15-0586.

Full text

Abstract:

AbstractEndothelins (EDNs) participate in various physiological events including smooth muscle contraction, nitric oxide (NO) synthesis, and embryonic development. In this study, we investigated the regional roles of EDNs produced by bovine oviductal epithelial cells in NO synthesis and smooth muscle motility. Quantification of mRNA expressions indicated that expression of EDN receptor B (EDNRB) in the ampullary region was higher after ovulation than before ovulation, whereas expression ofEDNRAin the isthmic region was higher after ovulation than before ovulation. Immunohistochemistry revealed

APA, Harvard, Vancouver, ISO, and other styles

32

Lee, Chin Hong, Nathaniel P. Hawker, Jonathan R. Peters, et al. "DEFECTIVE EMBRYO AND MERISTEMS genes are required for cell division and gamete viability in Arabidopsis." PLOS Genetics 17, no. 5 (2021): e1009561. http://dx.doi.org/10.1371/journal.pgen.1009561.

Full text

Abstract:

The DEFECTIVE EMBRYO AND MERISTEMS 1 (DEM1) gene encodes a protein of unknown biochemical function required for meristem formation and seedling development in tomato, but it was unclear whether DEM1’s primary role was in cell division or alternatively, in defining the identity of meristematic cells. Genome sequence analysis indicates that flowering plants possess at least two DEM genes. Arabidopsis has two DEM genes, DEM1 and DEM2, which we show are expressed in developing embryos and meristems in a punctate pattern that is typical of genes involved in cell division. Homozygous dem1 dem2 doubl

APA, Harvard, Vancouver, ISO, and other styles

33

Pleuger, Christiane, Mari S. Lehti, Jessica EM Dunleavy, Daniela Fietz, and Moira K. O’Bryan. "Haploid male germ cells—the Grand Central Station of protein transport." Human Reproduction Update 26, no. 4 (2020): 474–500. http://dx.doi.org/10.1093/humupd/dmaa004.

Full text

Abstract:

Abstract BACKGROUND The precise movement of proteins and vesicles is an essential ability for all eukaryotic cells. Nowhere is this more evident than during the remarkable transformation that occurs in spermiogenesis—the transformation of haploid round spermatids into sperm. These transformations are critically dependent upon both the microtubule and the actin cytoskeleton, and defects in these processes are thought to underpin a significant percentage of human male infertility. OBJECTIVE AND RATIONALE This review is aimed at summarising and synthesising the current state of knowledge around p

APA, Harvard, Vancouver, ISO, and other styles

34

Courret, Cécile, Ching-Ho Chang, Kevin H. C. Wei, Catherine Montchamp-Moreau, and Amanda M. Larracuente. "Meiotic drive mechanisms: lessons from Drosophila." Proceedings of the Royal Society B: Biological Sciences 286, no. 1913 (2019): 20191430. http://dx.doi.org/10.1098/rspb.2019.1430.

Full text

Abstract:

Meiotic drivers are selfish genetic elements that bias their transmission into gametes, often to the detriment of the rest of the genome. The resulting intragenomic conflicts triggered by meiotic drive create evolutionary arms races and shape genome evolution. The phenomenon of meiotic drive is widespread across taxa but is particularly prominent in the Drosophila genus. Recent studies in Drosophila have provided insights into the genetic origins of drivers and their molecular mechanisms. Here, we review the current literature on mechanisms of drive with an emphasis on sperm killers in Drosoph

APA, Harvard, Vancouver, ISO, and other styles

35

Yamamoto, Yuki, Misa Kohka, Yoshihiko Kobayashi, Izabela Woclawek-Potocka, and Kiyoshi Okuda. "Endothelin as a local regulating factor in the bovine oviduct." Reproduction, Fertility and Development 28, no. 6 (2016): 673. http://dx.doi.org/10.1071/rd14076.

Full text

Abstract:

Endothelin (EDN) is a possible regulating factor of oviductal motility, which is important for the transport of gametes and embryo. To clarify the factors that control the secretion of EDN in the bovine oviduct, the expression of EDNs, EDN-converting enzymes (ECEs) and EDN receptors (EDNRs) were investigated. All isoforms of EDN (EDN1–3), ECE (ECE1 and ECE2) and EDNR (EDNRA and EDNRB) were immunolocalised in the epithelial cells of the ampulla and the isthmus. EDNRs were also immunolocalised in smooth-muscle cells. The mRNA expression of EDN2 and ECE2 was higher in cultured ampullary oviductal

APA, Harvard, Vancouver, ISO, and other styles

36

Hafidh, Said, and David Honys. "Reproduction Multitasking: The Male Gametophyte." Annual Review of Plant Biology 72, no. 1 (2021): 581–614. http://dx.doi.org/10.1146/annurev-arplant-080620-021907.

Full text

Abstract:

The gametophyte represents the sexual phase in the alternation of generations in plants; the other, nonsexual phase is the sporophyte. Here, we review the evolutionary origins of the male gametophyte among land plants and, in particular, its ontogenesis in flowering plants. The highly reduced male gametophyte of angiosperm plants is a two- or three-celled pollen grain. Its task is the production of two male gametes and their transport to the female gametophyte, the embryo sac, where double fertilization takes place. We describe two phases of pollen ontogenesis—a developmental phase leading to

APA, Harvard, Vancouver, ISO, and other styles

37

Fontes, P. K., A. C. S. Castilho, R. F. P. Pinto, et al. "205 SITE OF OVULATION ALTERS GENE PROFILE IN THE OVIDUCT FROM NELORE (BOS TAURUS INDICUS) AND ANGUS HEIFERS (BOS TAURUS TAURUS)." Reproduction, Fertility and Development 27, no. 1 (2015): 193. http://dx.doi.org/10.1071/rdv27n1ab205.

Full text

Abstract:

The oviduct plays a key role promoting a favourable microenvironment to gametes transport, fertilization and early embryo development. Numerous differences in reproductive physiology are known among animals of Zebu and European breeds. Reports indicate that female Zebu cattle have a higher number of follicles per wave than female European cattle and individual distinctions in the number of follicles recruited are present in both breeds, namely animals with high follicular count (HFC) and low follicular count (LFC). Furthermore, the follicular count is related to animal fertility and is greatly

APA, Harvard, Vancouver, ISO, and other styles

38

Kocherova, Ievgeniia, Magdalena Kulus, Claudia Dompe, et al. "Biochemical properties of cofactor and coenzyme metabolism in porcine oviductal epithelial cells – a microarray study." Medical Journal of Cell Biology 7, no. 3 (2019): 125–33. http://dx.doi.org/10.2478/acb-2019-0017.

Full text

Abstract:

AbstractThe oviduct is a key organ responsible for ultimate oocytes maturation, transport of gametes, sperm capacitation, fertilization, as well as early embryo development. Its innermost layer, oviductal epithelium, represents a highly dynamic structure which undergoes changes in response to different physiological and pathological processes. Previously, the expression profile of genes involved in several important processes in porcine oviductal epithelial cells (OECs) during long-term primary in vitro culture. The present study further characterizes the porcine OECs model using Affymetrix mi

APA, Harvard, Vancouver, ISO, and other styles

39

Yoshimoto, Y., Y. Yamamoto, Y. Kobayashi, I. Woclawek-Potocka, E. Sinderewicz, and K. Okuda. "105 EFFECT OF LYSOPHOSPHATIDIC ACID ON PROSTAGLANDIN PRODUCTION IN THE BOVINE OVIDUCT." Reproduction, Fertility and Development 27, no. 1 (2015): 145. http://dx.doi.org/10.1071/rdv27n1ab105.

Full text

Abstract:

The oviduct is an essential organ for successful pregnancy in mammals. The transport of gametes and early embryos is mainly induced by contraction and relaxation of smooth muscle. The contraction and relaxation of bovine oviductal smooth muscle are induced by prostaglandin (PG) F2α and PGE2, respectively. Lysophosphatidic acid (LPA), a type of phospholipid, is involved in various physiological actions such as promoting inflammation and cellular proliferation in various organs. LPA acts through at least 6 G protein-coupled receptors. Both LPA and LPA receptors are expressed in endometrium and,

APA, Harvard, Vancouver, ISO, and other styles

40

Wijayagunawardane, MP, A. Miyamoto, Y. Taquahashi, et al. "In vitro regulation of local secretion and contraction of the bovine oviduct: stimulation by luteinizing hormone, endothelin-1 and prostaglandins, and inhibition by oxytocin." Journal of Endocrinology 168, no. 1 (2001): 117–30. http://dx.doi.org/10.1677/joe.0.1680117.

Full text

Abstract:

The precise regulatory mechanisms of cyclic oviductal contraction in the cow are unclear. The purpose of this study was to evaluate the effect of luteinizing hormone (LH), steroids, prostaglandins (PGs) and peptides on the oviductal contraction and secretion of PGs and endothelin (ET-1). In addition, the cyclic expression of mRNA for ET-1 and its receptors (ET-R) was evaluated by reverse transcription-polymerase chain reaction (RT-PCR). In the in vitro microdialysis study, an infusion of LH alone or in combination with progesterone (P(4)), estradiol-17beta (E(2)) and/or ET-1 stimulated pronoun

APA, Harvard, Vancouver, ISO, and other styles

41

Sánchez, K., D. Dipaz, M. Rodriguez, and E. Mellisho. "18 Histomorphometric comparison of right and left oviduct structure from alpaca (Vicugna pacos)." Reproduction, Fertility and Development 33, no. 2 (2021): 116. http://dx.doi.org/10.1071/rdv33n2ab18.

Full text

Abstract:

One of the phenomena that occurs during pregnancy in camelids is that nearly all fetuses occupy the left uterine horn, even though both ovaries ovulate with equal frequency. However, there are no reports on morphometric differences between the alpaca left and right oviducts, which could indicate an effect on gamete transport. The present study was carried out to measure and compare inner and outer measurements of the left and right oviduct regions from alpaca. One hundred twenty transverse sections (5µm) of oviducts were studied from 5 adult females, all with dominant ovarian follicle collecte

APA, Harvard, Vancouver, ISO, and other styles

42

Sánchez, K., D. Dipaz, M. Rodriguez, and E. Mellisho. "18 Histomorphometric comparison of right and left oviduct structure from alpaca (Vicugna pacos)." Reproduction, Fertility and Development 33, no. 2 (2021): 116. http://dx.doi.org/10.1071/rdv33n2ab18.

Full text

Abstract:

One of the phenomena that occurs during pregnancy in camelids is that nearly all fetuses occupy the left uterine horn, even though both ovaries ovulate with equal frequency. However, there are no reports on morphometric differences between the alpaca left and right oviducts, which could indicate an effect on gamete transport. The present study was carried out to measure and compare inner and outer measurements of the left and right oviduct regions from alpaca. One hundred twenty transverse sections (5µm) of oviducts were studied from 5 adult females, all with dominant ovarian follicle collecte

APA, Harvard, Vancouver, ISO, and other styles

43

Melzner, F., M. A. Gutowska, M. Langenbuch, et al. "Physiological basis for high CO<sub>2</sub> tolerance in marine ectothermic animals: pre-adaptation through lifestyle and ontogeny?" Biogeosciences Discussions 6, no. 3 (2009): 4693–738. http://dx.doi.org/10.5194/bgd-6-4693-2009.

Full text

Abstract:

Abstract. Future ocean acidification has the potential to adversely affect many marine organisms. A growing body of evidence suggests that many species could suffer from reduced fertilization success, decreases in larval- and adult growth rates, reduced calcification rates, metabolic depression and even mortality when being exposed to near-future levels (year 2100 scenarios) of ocean acidification. Little research focus is currently placed on those organisms/taxa that might be less vulnerable to the anticipated changes in ocean chemistry; this is unfortunate, as the comparison of more vulnerab

APA, Harvard, Vancouver, ISO, and other styles

44

Ibragimova, E. E. "PALINOMORPHOLOGICAL AND PALINOTOXICAL ASSESSMENT OF AEROTECHNOGENIC POLLUTION IN URBOEKOSISTEMS." Samara Journal of Science 4, no. 2 (2015): 83–86. http://dx.doi.org/10.17816/snv20152124.

Full text

Abstract:

The men's generative system of populations of Salix babylonica growing along roads with various level of pollution was investigated. It is established that emissions of motor transport make the adverse effect on generative bodies of Salix babylonica that is shown in the raised production of sterile pollen and its poor quality that is confirmed by exis - tence of reliable differences between the populations growing in zones with various level of aero technogenic pollution. At plants of an inspection zone quite high rate of sterility - 18% of a man's gametophyte was revealed, however production

APA, Harvard, Vancouver, ISO, and other styles

45

Rátky, József, István Egerszegi, Tamás Páble, et al. "Invited review: reproductive physiology in commercial and premium pig breeds – history of 30-year-long cooperation." Archives Animal Breeding 60, no. 3 (2017): 253–57. http://dx.doi.org/10.5194/aab-60-253-2017.

Full text

Abstract:

Abstract. Cooperation of the Hungarian Research Institute for Animal Breeding and Nutrition (ATK) with the German Leibniz Institute for Farm Animal Biology (FBN) goes back many decades. In 1988 the two departments of reproductive biology began a joint project concerning on ovulation investigation in Landrace pigs. This joint project laid the foundation for further joint projects and has existed for almost 30 years. Over the years, the main focus has always been on the events of the female reproductive tract in pigs, i.e., follicular growth, ovulation, transport of gametes in the oviduct, ferti

APA, Harvard, Vancouver, ISO, and other styles

46

Hawk, H. W. "Gamete transport in the superovulated cow." Theriogenology 29, no. 1 (1988): 125–42. http://dx.doi.org/10.1016/0093-691x(88)90036-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Lapointe, Jérome, Monica Roy, Isabelle St-Pierre, et al. "Hormonal and Spatial Regulation of Nitric Oxide Synthases (NOS) (Neuronal NOS, Inducible NOS, and Endothelial NOS) in the Oviducts." Endocrinology 147, no. 12 (2006): 5600–5610. http://dx.doi.org/10.1210/en.2005-1548.

Full text

Abstract:

Nitric oxide (NO) is a free radical produced by the action of NO synthases (NOS) and is known to be involved in the regulation of many reproductive events that occur in the oviducts. The oviducts are highly specialized organs that play crucial roles in reproduction by providing an optimal environment for the final maturation of gametes, fertilization, and early embryo development. In this study, we analyzed the expression, hormonal regulation, and cellular distribution of neuronal, inducible, and endothelial NOS in different bovine oviduct segments to better understand the roles played by thes

APA, Harvard, Vancouver, ISO, and other styles

48

Hunter, R. H. F. "Sperm head binding to epithelium of the oviduct isthmus is not an essential preliminary to mammalian fertilization - review." Zygote 19, no. 3 (2010): 265–69. http://dx.doi.org/10.1017/s0967199410000341.

Full text

Abstract:

SummaryIn endeavouring to understand the nature of sperm–oviduct interactions in mammals, attention was focused on experimental models in which fertilization can occur without a preliminary phase of sperm head binding to the isthmus epithelium. The ovarian endocrine milieu imposed on the oviduct tissues plays an important role in the binding phenomenon, although less so after the time of ovulation. Nonetheless, a sperm suspension introduced into the peritoneal cavity or surgical insemination directly into the oviduct ampulla before ovulation can result in fertilization, as can a surgical model

APA, Harvard, Vancouver, ISO, and other styles

49

Lim, Megan, Hannah M. Brown, Karen L. Kind, Jeremy G. Thompson, and Kylie R. Dunning. "Hemoglobin: potential roles in the oocyte and early embryo†." Biology of Reproduction 101, no. 2 (2019): 262–70. http://dx.doi.org/10.1093/biolre/ioz078.

Full text

Abstract:

Abstract Hemoglobin (Hb) is commonly known for its capacity to bind and transport oxygen and carbon dioxide in erythroid cells. However, it plays additional roles in cellular function and health due to its capacity to bind other gases including nitric oxide. Further, Hb acts as a potent antioxidant, quenching reactive oxygen species. Despite its potential roles in cellular function, the preponderance of Hb research remains focused on its role in oxygen regulation. There is increasing evidence that Hb expression is more ubiquitous than previously thought, with Hb and its variants found in a myr

APA, Harvard, Vancouver, ISO, and other styles

50

Rahmati Ishka, Maryam, Elizabeth Brown, Alexa Rosenberg, et al. "Arabidopsis Ca2+-ATPases 1, 2, and 7 in the endoplasmic reticulum contribute to growth and pollen fitness." Plant Physiology 185, no. 4 (2021): 1966–85. http://dx.doi.org/10.1093/plphys/kiab021.

Full text

Abstract:

Abstract Generating cellular Ca2+ signals requires coordinated transport activities from both Ca2+ influx and efflux pathways. In Arabidopsis (Arabidopsis thaliana), multiple efflux pathways exist, some of which involve Ca2+-pumps belonging to the Autoinhibited Ca2+-ATPase (ACA) family. Here, we show that ACA1, 2, and 7 localize to the endoplasmic reticulum (ER) and are important for plant growth and pollen fertility. While phenotypes for plants harboring single-gene knockouts (KOs) were weak or undetected, a triple KO of aca1/2/7 displayed a 2.6-fold decrease in pollen transmission efficiency

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!