- 関
- -blast、blast、blast cell
WordNet
- the physically discrete element that Darwin proposed as responsible for heredity
- shatter as if by explosion (同)knock down
- shrivel or wither or mature imperfectly
- make with or as if with an explosion; "blast a tunnel through the Alps"
- a very long fly ball
- an explosion (as of dynamite)
- make a strident sound; "She tended to blast when speaking into a microphone" (同)blare
- create by using explosives; "blast a passage through the mountain" (同)shell
- use explosives on; "The enemy has been shelling us all day" (同)shell
- fire a shot; "the gunman blasted away" (同)shoot
- apply a draft or strong wind to to; "the air conditioning was blasting cold air at us"
PrepTutorEJDIC
- 〈C〉(風の)『一吹き』,一陣の風;突風,疾風《+『of』+『名』》 / 〈C〉(穴から吹き出す空気の)一吹き / 〈C〉(笛・らっぱなどの)突然の大きな[不快な]音《+『of』+『名』》 / 〈C〉〈U〉爆破(explosion)《+『of』+『名』》 / 〈C〉(1回分の)発破,爆薬 / 〈C〉〈U〉爆風 / …'を'『爆破する』;…'を'爆破して作る(開く) / 《文》…'を'孫なう,台なしにする;〈霜などが〉…'を'枯 / 〈らっぱなど〉'を'急に大きく鳴らす / …'を'酷評する;(…について)〈人〉'を'こっぴどく叱る《+『名』+『about』+『名』(do『ing』)》 / …'を'のろう(damn)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/08/31 00:51:22」(JST)
[Wiki en表示]
This article is about the internal buds of freshwater sponges. For the proposed mechanism of heredity, see Gemmule (pangenesis).
Gemmules are internal buds found in sponges that are the result of asexual reproduction, and are a response to a hostile environment.They are resistant to desiccation (drying out), freezing, and anoxia (lack of oxygen) and can lie around for long periods of time. These are similar to a bacterium's endospore. Gemmules are made up of amoebocytes surrounded by a layer of spicules and can survive conditions that would kill adult sponges. When the environment becomes less hostile, the gemmule resumes growing.
References[edit source | edit]
- Feldkamp, Susan (2002). Modern Biology. United States: Holt, Rinehart, and Winston. p. 695. Accessed on May 23, 2006.
English Journal
- Efficacy of local aspiration in the conservative treatment of live interstitial pregnancy coexisting with live intrauterine pregnancy after in vitro fertilization and embryo transfer.
- Wang Y, Ma CH, Qiao J, Chen XN, Liu P.SourceCenter for Reproductive Medicine, Peking University Third Hospital, Beijing, China.
- Chinese medical journal.Chin Med J (Engl).2012 Apr;125(7):1345-8.
- BACKGROUND: Heterotopic pregnancy (HP) is defined as a pregnancy in which one or more embryos is viably implanted in the uterus while the other is implanted elsewhere as an ectopic pregnancy. The occurrence of HP rises dramatically with the increased use of assisted reproductive technology. HP of in
- PMID 22613613
- Diapause and estivation in sponges.
- Loomis SH.SourceDepartment of Biology, Connecticut College, New London, CT 06320, USA. shloo@conncoll.edu
- Progress in molecular and subcellular biology.Prog Mol Subcell Biol.2010;49:231-43. doi: 10.1007/978-3-642-02421-4_11.
- Sponges can be found in fresh or saltwater habitats. As part of their life cycle, many sponges produce gemmules as a means of surviving environmental challenge. In most sponges, the gemmules contain cells that are initially in a state of metabolic arrest that is controlled by endogenous factors. Thi
- PMID 20069412
- The stem cell concept in sponges (Porifera): Metazoan traits.
- Müller WE.SourceInstitut für Physiologische Chemie, Abteilung Angewandte Molekularbiologie, Universität, Duesbergweg 6, D-55099 Mainz, Germany. wmueller@uni-mainz.de
- Seminars in cell & developmental biology.Semin Cell Dev Biol.2006 Aug;17(4):481-91. Epub 2006 May 27.
- Sponges are considered the oldest living animal group and provide important insights into the earliest evolutionary processes in the Metazoa. This paper reviews the evidence that sponge stem cells have essential roles in cellular specialization, embryogenesis and Bauplan formation. Data indicate tha
- PMID 16807004
Japanese Journal
- 益田 芳樹
- タクサ : 日本動物分類学会誌 (20), 15-22, 2006-02-20
- … Other important key characters for identification are size, form and structure of gemmules, the gemmule coat, and micropyle. … In Japan, the timing of gemmule production varies among species. …
- NAID 110006838976
- Role of Symbiotic Algae on Gemmule Germination of a Freshwater Sponge, Radiospongilla cerebellata
- OkudaNaomi,YamamotoAtsuko,SatohYuriko,FujimotoYoshihiro,上島孝久
- Chugokugakuen journal 1, 7-12, 2002
- … Although illumination is necessary for the gemmule hatching, the intensity of the light is very low and the illuminating period to induce the hatching is very short. … To understand role of air components and photosynthesis on the gemmule hatch, we examined gaseous elements of the air and found that oxygen and carbon dioxide were responsible for the gemmule hatch. …
- NAID 110004706319
- PHOTOSYNTHETIC EFFECTS OF ENDOSYMBIOTIC ALGAE ON GEMMULE GERMINATION OF A FRESHWATER SPONGE(Behavior Biology and Ecology)(Proceedings of the Sixty-Ninth Annual Meeting of the Zoological Society of Japan)
- Satoh Y.,Fujimoto Y.,Kamishima Y.
- Zoological science 15(Supplement), 54, 1998-12-15
- NAID 110003369882
Related Links
- gem·mule / ˈdʒɛm yul / Show Spelled [jem-yool] Show IPA noun 1. Botany, gemma. 2. Zoology. an asexually produced mass of cells that is capable of developing into an animal, as a freshwater sponge. 3. Evolution. one of the ...
- "gemmule" definition: the physically discrete element that Darwin proposed as responsible for heredity. Type of: hypothesis. +Audio pronunciation... ... Definition: the physically discrete element that Darwin proposed as responsible ...
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- 関
- -blast、blast cell、blastic、gemmule
[★]
- 関
- -blast、blast、blastic、gemmule