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*  Purpose and background information
Figure 11. Pythium oogonium (female sexual structure) has two antheridia (male sexual structures) attached at the side ( ... The sexual spores of oomycetes are thick-walled oospores produced from the union of the antheridia and oogonia (male and female ... Figure 12. Phytophthora cambivora has oogonia with an ornate wall and two-celled antheridia encircling the base of the oogonia ... Figure 13. Some Phytophthora species have smooth oogonia, as in Phytophthora cinnamomi shown here. Click image to see a larger ...
  http://www.apsnet.org/EDCENTER/K-12/TEACHERSGUIDE/WATERMOLD/Pages/background.aspx
*  View source for Oogonium - Biology-Online Dictionary
Definition''' ''noun, plural: oogonia'' (''zoology'') The [[diploid]] female [[gametogonium]] that gives rise to [[primary ... When the oogonia start [[meiosis]] they are now referred to as [[primary oocyte]]s. ''See also:'' [[secondary oocyte]] ... the oogonia are actually [[primordial germ cell]]s that have migrated from the[[ yolk sac]] to the [[genital ridge]] during the ... oocyte]] through [[oocytogenesis]]. (''botany'') The female [[reproductive structure]] in [[thallophyte]]s (e.g. [[algae]]) ...
  http://www.biology-online.org/bodict/index.php?title=Oogonium&action=edit
*  Ovarian adult stem cells: hope or pitfall? | Journal of Ovarian Research | Full Text
... have imposed delaying childbearing in women of reproductive age, affecting these women by age-related infertility. Even more so ... Through mitotic divisions, the number of oogonia increases until the fifth month of intrauterine life, when the first meiotic ... The female gonad is organized as a parenchymatous organ, with an outer, cortical region and an inner medullar one (Figure 1). ... Tilly JL, Sinclair DA: Germline energetics, aging, and female infertility. Cell Metab 2013, 17: 838-850.PubMed CentralView ...
  https://ovarianresearch.biomedcentral.com/articles/10.1186/1757-2215-7-71
*  Small Things Considered: Five Questions About Oomycetes
It means 'egg fungus,' a term coined because of the large round structures containing the female gametes, the oogonia. The ... The cell carrying the female gamete (oogonium) is spherical, whereas the one with the male gamete (antheridium) looks pretty ... round, spherical cell is the female oogonium, the swollen hypha, the male antheridium. Source ... The two mate via a fertilization tube extending from the male to the female gamete, which gives rise to the zygote, the oocyte ...
  https://schaechter.asmblog.org/schaechter/2009/11/fiv-1.html
*  Conceptacle - Wikipedia
The diploid plants produce male (antheridia) and female (oogonia) gametangia by meiosis. The gametes are released into the ... Sexual (male / female) conceptacles. These lack a columella. L. incrustans has distinct male and female plants; the two ... For example, Lithophyllum incrustans bears asexual, male, female and cystocarpic (strictly, a type of female) conceptacles, ... Being mature female conceptacles, these too lack a columella. In most coralline algae, a cluster of reproductive cells forms in ...
  https://en.wikipedia.org/wiki/Conceptacle
*  Chapter 7: RNA, The Genetic Code, Mitosis/Meiosis, and Mendelian Genetics Flashcards - MCAT Biochemistry | Brainscape
Oogonium = cell where meiosis occurs in females to make a haploid egg *Stages: *Oogonium (diploid) *present at birth ... Female product = 1 ovum and 3 polar bodies that are waste products ...
  https://www.brainscape.com/flashcards/chapter-7-rna-the-genetic-code-mitosis-me-5268458/packs/6138324
*  When do Human Beings Begin? "Scientific" Myths and Scientific Facts
"Oogenesis is the production and maturation of oocytes, i.e.; the female gametes derived from oogonia. Oogonia (derived from ... Oogenesis begins in the female during fetal life. The total number of primary oocytes-about 7 million-is produced in the female ... and in the female (definitive oocytes). The timing of gametogenesis is different in males and in females. The later stages of ... The number of oogonia increases to nearly seven million by the middle of prenatal life, after which it diminishes to about two ...
  http://www.consciencelaws.org/background/science/science001.aspx
*  Phytophthora capsici - Wikipedia
Phytophthora capsici produces both a male and a female type gametangia called an antheridium (male) and an oogonium (female). ... that the antheridium may remain in this male form of the gametangia or develop into the female gametangia which is an oogonium ...
  https://en.wikipedia.org/wiki/Phytophthora_capsici
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Conversely, stereological analysis revealed that triploid females were sterile and oogonia were the prevalent cell type in the ... In A. australis and C. ursinus, skulls of females mature at about 6 years of age, and those of males at about 8 years. Otaria ... Data come from female participants (n=327, age 24.4-30.2 years) in a longitudinal study located in Metropolitan Cebu, ... Diploid females and males presented normal oogenesis and spermatogenesis through all the experimental period. ...
  https://www.cambridge.org/core/search?filters%5Bkeywords%5D=growth
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Conversely, stereological analysis revealed that triploid females were sterile and oogonia were the prevalent cell type in the ... Undergraduate students (Study I: n 215, 135 women; Study II: n 98, 52 women). ... Diploid females and males presented normal oogenesis and spermatogenesis through all the experimental period. ... However, chlorantraniliprole and its combination with surfactant reduced the head capsule width of the female progeny. This ...
  https://www.cambridge.org/core/search?filters%5BauthorTerms%5D=Jos%C3%A9%20Pereira&eventCode=SE-AU
*  Glossary of phytopathology - Wikipedia
intumescence) oligogenic resistance oogonium (pl. oogonia) An oogonium is a female gametogonium. oomycetes (adj. oomycetous) ...
  https://en.wikipedia.org/wiki/Glossary_of_phytopathology
*  Phytophthora sojae - Wikipedia
Oospores are made after the male gamete, antheridium, and female gamete, oogonium, undergo fertilization and then sexual ...
  https://en.wikipedia.org/wiki/Phytophthora_sojae
*  Macrocystis - Wikipedia
Females release their eggs (oogonia) along with a pheromone, the lamoxirene. This compound triggers sperm release by males. The ... Juvenile giant kelp grow directly on the parent female gametophyte, extending one or two primary blades, and beginning a ... These blades bear various sori containing sporangia, which release haploid spores, which will grow into microscopic female and ... Macrocystis sperm consists of biflagellate non-synthetic antherozoids, which find their way to the oogonia following the ...
  https://en.wikipedia.org/wiki/Macrocystis
*  Pythium aphanidermatum - Wikipedia
2)There can also be sexual reproduction when two different mating hyphal types meet, creating an oogonium (female structure), ... Sexually, they reproduce with structures called antheridia, oogonia, and oospores. Pythium aphanidermatum has a wide host range ...
  https://en.wikipedia.org/wiki/Pythium_aphanidermatum
*  91. Female Repro 1 Flashcards - Cram.com
Female Repro 1 at Cram.com. Quickly memorize the terms, phrases and much more. Cram.com makes it easy to get the grade you want ... Production of oogonia! This is when they begin to increase significantly in number. ... Female Repro 1","payreferer_url":"\/flashcards\/copy\/91-female-repro-1-470423","isGuest":true,"ga_id":"UA-272909-1","facebook ... What is the first hormone that increases when GnRH pulses begin to increase in a 10yr old female? ...
  http://www.cram.com/flashcards/91-female-repro-1-470423
*  Pioneers Archives - Biology Blog & Dictionary Online
Oogenesis (i.e. gametogenesis in females) takes place in the ovaries to produce ova or egg cells. In brevity, the oogonium (the ... The researchers transformed human blood cells into oogonia (plural of oogonium). They did so by incubating them for four months ... The oogonia, indeed precursors to egg cells, are, at this point, still young, and thereby, unfit for fertilization. The ... the female sex cell is referred to as the ovum (also called egg cell) whereas the male sex cell, the sperm cell. The somatic ...
  https://www.biology-online.org/category/pioneers/
*  Germ Cell, Stem Cell, and Genomic Modification in Birds | OMICS International
After PGCs enter the bilateral gonads, the cells begin to differentiate into oogonia in females at embryonic day (E) 8.0, and ... After PGC differentiation, DNMT3B was detected in female germ cells until adulthood was attained [46]. Apart from the genes and ... 2013) Conservation and Expression of piRNA Pathway Genes in Male and Female Adult Gonads of Amniotes. BiolReprod 89(6):136.[ ... prospermatogonia in males at E13.0 [35,48]. Oogonia engage in further mitosis to increase cell numbers, finally becoming ...
  https://www.omicsonline.org/open-access/germ-cell-stem-cell-and-genomic-modification-in-birds-2157-7633.1000201.php?aid=25765
*  Oomycete - Wikipedia
"Oomycota" means "egg fungi", referring to the large round oogonia, structures containing the female gametes, that are ...
  https://en.wikipedia.org/wiki/Oomycete
*  Laminaria - Wikipedia
The female egg matures in the oogonium until the male sperm fertilizes it. Life-Cycle: The most apparent form of Laminaria is ... At meiosis the male and female zoospores are produced separate then germinate into male and female gametophytes. ...
  https://en.wikipedia.org/wiki/Laminaria
*  Sciara (gnat) - Wikipedia
Hence female germ line (oogonia) cells have 3 pairs of autosomes, 1 maternal X chromosomes and a few limited chromosomes. 2) ... ii) FEMALES During the 5th and 6th divisions of the embryo all the limited chromosomes are eliminated. In the next stage of ... Hence female soma line cells have 3 pairs of autosomes and one maternal and one paternal X chromosome.. ... ii) FEMALES In the formation ova the 1st ovarian division is monocentric mitosis, the maternal and paternal homologous ...
  https://en.wikipedia.org/wiki/Sciara_(gnat)
*  Oedogonium - Wikipedia
The small male filaments are likely to be attached to a female filament, near an oogonium. Guiry, M.D.; Guiry, G.M. (2008). " ... Antheridia which produce sperm, and oogonia which produce an egg, release the sperm and egg. The egg and sperm then fuse and ... The male filament, which are much smaller than the female filament, is called a dwarf male or nannandrium. Nannandrous species ... This group is further subdivided into: Macrandous Monoecious - In these species, antheridia and oogonia are found on the same ...
  https://en.wikipedia.org/wiki/Oedogonium
*  The American Journal of Tropical Medicine and Hygiene | Volume 26, Issue 4
In the females the organisms were also present in the oogonia, oocytes, developing eggs and microfilariae. The organisms, found ... The number of eggs of both species present in the tissues and passed in the excreta was related to the number of female worms ( ... The number of eggs per female worm found in the feces was lower than that noted in Brazil. S. haematobium infections were much ... In one case, a gravid worm migrated via the female genital tract to the peritoneal cavity. In two other cases, male worms were ...
  http://www.ajtmh.org/content/journals/14761645/26/4
*  MeSH Semantic Type: Cell [T025]
Oogonia [M0015309]. Euploid female germ cells of an early stage of OOGENESIS, derived from primordial germ cells during ovarian ... Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are ... Oogonia undergo MEIOSIS and give rise to haploid OOCYTES * Osteoblasts [M0015514]. Bone-forming cells which secrete an ... Supporting cells for the developing female gamete in the OVARY. They are derived from the coelomic epithelial cells of the ...
  http://www.slicksurface.com/medical-thesaurus/semantic-type/cell.htm
*  Biological Foundations 112, Lecture 24
a) Oogonia formation i) Oogonium is the female gametangium ii) Cross wall separates the oogonium from the hypha as a side ... oogonium through its cell wall iii) Each fertilization tube grows until it contacts the eggs in the oogonium iv) Nucleus from ... iv) From 1 to 20 eggs form within the oogonium v) Each egg has one nucleus and is 3 to 4 times the diameter of the hypha (b) ... i) Antheridium grows partially around the oogonium ii) Fertilization tubes grow from the side of the antheridium into the ...
  http://www2.puc.edu/Faculty/Gilbert_Muth/botlec24.htm