幼生、幼虫
- 関
- larva、larval、maggot、tadpole
WordNet
- relating to or typical of a larva; "the larval eye"
- immature of its kind; especially being or characteristic of immature insects in the newly hatched wormlike feeding stage; "larval societies"; "larval crayfishes"; "the larval stage"
- the larva of the housefly and blowfly commonly found in decaying organic matter
- a larval frog or toad (同)polliwog, pollywog
- the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose
PrepTutorEJDIC
- 幼虫の
- ウジ(ハエなどの幼虫)
- オタマジャクシ
- (昆虫の)幼虫(青虫など) / (動物の)幼生(オタマジャクシなど)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/09/07 11:51:50」(JST)
[Wiki en表示]
For other uses, see Larva (disambiguation).
|
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (February 2015) |
Larva of
Papilio xuthus, butterfly
A larva (plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
The larva's appearance is generally very different from the adult form (e.g. caterpillars and butterflies). A larva often has unique structures and organs that do not occur in the adult form, while their diet might be considerably different.
Larvae are frequently adapted to environments separate from adults. For example, some larvae such as tadpoles live almost exclusively in aquatic environments, but can live outside water as adult frogs. By living in a distinct environment, larvae may be given shelter from predators and reduce competition for resources with the adult population.
Animals in the larval stage will consume food to fuel their transition into the adult form. In some species like barnacles, adults are immobile but their larvae are mobile, and use their mobile larval form to distribute themselves.
Some larvae are dependent on adults to feed them. In many eusocial Hymenoptera species, the larvae are fed by female workers. In R. marginata the males are also capable of feeding larvae but they are much less efficient, spending more time and getting less food to the larvae.[1]
The larvae of some species (for example, some newts) can become pubescent and do not develop further into the adult form. This is a type of neoteny.
Eurosta solidaginis Goldenrod Gall Fly larva
It is a misunderstanding that the larval form always reflects the group's evolutionary history. This could be the case, but often the larval stage has evolved secondarily, as in insects. In these cases the larval form may differ more than the adult form from the group's common origin.[citation needed]
Contents
- 1 Selected types of larvae
- 2 See also
- 3 References
- 4 External links
- 5 Bibliography
Selected types of larvae
Animal |
Name of larva |
Cnidarians |
planula, actinula |
Crustacea: Decapoda |
zoea |
Insecta: Lepidoptera (butterflies and moths) |
caterpillar |
Insecta: Beetles |
grub |
Insecta: Flies, Bees, Wasps |
maggot |
Insecta: Mosquitoes |
wriggler |
Certain molluscs, annelids, nemerteans and sipunculids |
trochophore |
Certain molluscs |
veliger |
Mollusca: freshwater Bivalvia (mussels) |
glochidium |
Petromyzontiformes (lamprey) |
ammocoete |
Fish (generally) |
larva |
Fish: Anguilliformes (eels) |
leptocephalus |
Amphibians |
tadpole, polliwog |
Phoronids |
actinotroch |
Porifera (sponges) |
coeloblastula larvae (= blastula larvae), parenchymula (= parenchymella), amphiblastula |
Cycliophora |
pandora, chordoid larva |
Nemertea |
pilidium, Iwata larva, Desor larva |
Hemichordata |
tornaria |
Acanthocephala |
acanthor |
Ctenophora |
cydippid larvae |
Deuterostomes |
dipleurula (hypothetical larva) |
Arthropoda: Xiphosura |
euproöps larva ("trilobite larva") |
Platyhelminthes |
Götte’s larva, Müller's larva, miracidium, oncomiracidium, coracidium |
Locifera |
Higgins larva |
Dicyemida |
infusoriform larva |
Brachiopoda |
lobate larva |
Priapula |
loricate larva |
Crustaceans |
nauplius, metanauplius, protozoea, antizoea, pseudozoea, zoea, postlarva, cypris, primary larva, mysis |
Arthropoda: †Trilobita |
protaspis (unjointed), meraspis (increasing number of joints, but 1 less than the holaspis), holaspis (=adult)[2] |
Arthropoda: Pycnogonida |
protonymphon |
Urochordata |
tadpole (does not feed, technically a "swimming embryo") |
Echinodermata |
bipinnaria, vitellaria, brachiollaria, pluteus, ophiopluteus, echinopluteus, auricularia |
Nematomorpha |
nematomorphan larva |
Sipuncula |
pelagosphera larva |
Annelida |
nectochaeta, polytroch |
Ectoprocta |
cyphonautes, vesiculariform larvae |
Heterocyemida |
Wagener's larva |
Nematoda |
Dauer larva |
See also
- Crustacean larvae
- Ichthyoplankton
- Spawn (biology)
- Ecdysis
- Instar, intermediate between each ecdysis
- Other non-larval juveniles (immature forms):
- Paralarva, young cephalopods
- Nymphs and naiads, immature forms in hemimetabolous insects
- Subimago, a juvenile that resembles the adult in Ephemeroptera
- Pupa and chrysalis, intermediate between larva and imago
- Imago, final stage
- Marine larval ecology
References
- ^ Sen, R; Gadagkar, R (2006). "Males of the social wasp Ropalidia marginata can feed larvae, given an opportunity". Animal Behavior 71: 345–350. doi:10.1016/j.anbehav.2005.04.022.
- ^ Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. O121, O122, O125. ISBN 0-8137-3015-5.
External links
- Media related to Larva at Wikimedia Commons
- The dictionary definition of larva at Wiktionary
- Arenas-Mena, C. (2010) Indirect development, transdifferentiation and the macroregulatory evolution of metazoans. Philosophical Transactions of the Royal Society B: Biological Sciences. Feb 27, 2010 Vol.365 no.1540 653-669
Bibliography
- Brusca, R. C., & Brusca, G. J. (2003). Invertebrates (2nd ed.). Sunderland, Mass. : Sinauer Associates.
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
- 1. 皮膚幼虫移行症(皮膚爬行症) cutaneous larva migrans creeping eruption
- 2. 帰国者の皮膚病変 skin lesions in the returning traveler
- 3. 肺好酸球増多症の原因 causes of pulmonary eosinophilia
- 4. 鉤虫感染 hookworm infection
- 5. 旋毛虫症 trichinellosis
English Journal
- Nanotoxicology using the sea anemone Nematostella vectensis: from developmental toxicity to genotoxicology.
- Ambrosone A, Marchesano V, Mazzarella V, Tortiglione C.Author information Istituto di Cibernetica "E.Caianiello", Consiglio Nazionale delle Ricerche , Pozzuoli , Italy.AbstractAbstract Concomitant with the fast-growing advances in the synthesis and engineering of colloidal nanocrystals, an urgent evaluation of their toxicity on human beings and environment is strongly encouraged by public health organisations. Despite the in vitro approaches employed for toxicological screening of hazardous compounds, the use of simple and cost-effective living organisms may enormously contribute to solve unanswered questions related to embryotoxic and teratogenic effects of nanomaterials. Here, the sea anemone Nematostella vectensis (Cnidaria, Anthozoa) is presented as a novel model organism to profile bio/non-bio interactions and to show a comprehensive toxicological analysis performed on embryos, larvae and adults treated with fluorescent cadmium-based nanocrystals. Spanning from in vivo biodistribution to molecular investigations, different behaviours and effects depending on the composition and surface coatings are showed. Rod-shaped cadmium selenide/cadmium sulfide (CdSe/CdS) nanocrystals resulted in excellent imaging probes to track N. vectensis development with negligible adverse effects, while spherical CdTe nanocrystals severely impaired embryogenesis, resulting in aberrant phenotypes and deregulation of developmental genes, which raise severe worries for a safe use of this type of nanoparticles for human purposes and environmental contamination.
- Nanotoxicology.Nanotoxicology.2014 Aug;8:508-20. doi: 10.3109/17435390.2013.802386. Epub 2013 Jun 3.
- Abstract Concomitant with the fast-growing advances in the synthesis and engineering of colloidal nanocrystals, an urgent evaluation of their toxicity on human beings and environment is strongly encouraged by public health organisations. Despite the in vitro approaches employed for toxicological scr
- PMID 23641943
- Expression of antimicrobial peptides in coelomocytes and embryos of the green sea urchin (Strongylocentrotus droebachiensis).
- Li C1, Blencke HM2, Haug T2, Jørgensen O3, Stensvåg K4.Author information 1Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, University of Tromsø, Breivika, N-9037 Tromsø, Norway; Centre for Research-based Innovation on Marine Bioactives and Drug Discovery (MabCent-SFI), University of Tromsø, N-9037 Tromsø, Norway. Electronic address: Chun.Li@uit.no.2Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, University of Tromsø, Breivika, N-9037 Tromsø, Norway; Centre for Research-based Innovation on Marine Bioactives and Drug Discovery (MabCent-SFI), University of Tromsø, N-9037 Tromsø, Norway.3Troms Kråkebolle AS, Limonbukt, 9022 Krokelvdalen, Norway.4Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, University of Tromsø, Breivika, N-9037 Tromsø, Norway; Centre for Research-based Innovation on Marine Bioactives and Drug Discovery (MabCent-SFI), University of Tromsø, N-9037 Tromsø, Norway. Electronic address: Klara.Stensvag@uit.no.AbstractAntimicrobial peptides (AMPs) play a crucial role in innate immunity. We have previously reported the isolation and characterization of the AMPs, strongylocins 1 and 2, and centrocin 1, from coelomocyte extracts of Strongylocentrotus droebachiensis. Here we show that these AMPs were expressed in phagocytes. In addition, transcripts of strongylocin 1 were detected in vibratile cells and/or colorless spherule cells, while transcripts of strongylocin 2 were found in red spherule cells. Results from immunoblotting and immunocytochemistry studies showed that centrocin 1 was produced by phagocytes and stored in granular vesicles. Co-localization of centrocin 1 and phagocytosed bacteria suggests that the granular vesicles containing centrocin 1 may be involved in the formation of phagolysosomes. We also analyzed the temporal and spatial expression of AMPs throughout larval development. Strongylocins were expressed in the early pluteus stage, while centrocin 1 was expressed in the mid pluteus stage. The spatial expression pattern showed that centrocin 1 was mainly located in blastocoelar cells (BCs) around the stomach and the esophagus. In addition, a few patrolling BCs were detected in some larval arms. Together, these results suggest that AMPs are expressed in different types of coelomocytes and that centrocin 1 is involved in response against bacteria. Furthermore, the expression of AMPs in larval pluteus stage, especially in BCs, indicates that AMPs and BCs are engaged in the larval immune system.
- Developmental and comparative immunology.Dev Comp Immunol.2014 Mar;43(1):106-13. doi: 10.1016/j.dci.2013.10.013. Epub 2013 Nov 12.
- Antimicrobial peptides (AMPs) play a crucial role in innate immunity. We have previously reported the isolation and characterization of the AMPs, strongylocins 1 and 2, and centrocin 1, from coelomocyte extracts of Strongylocentrotus droebachiensis. Here we show that these AMPs were expressed in pha
- PMID 24239709
- Extreme thermal noxious stimuli induce pain responses in zebrafish larvae.
- Malafoglia V, Colasanti M, Raffaeli W, Balciunas D, Giordano A, Bellipanni G.Author information Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, Pennsylvania; ISAL-Foundation, Institute for Research on Pain, Torre Pedrera (RN), Italy.AbstractExposing tissues to extreme high or low temperature leads to burns. Burned animals sustain several types of damage, from the disruption of the tissue to degeneration of axons projecting through muscle and skin. Such damage causes pain due to both inflammation and axonal degeneration (neuropathic-like pain). Thus, the approach to cure and alleviate the symptoms of burns must be twofold: rebuilding the tissue that has been destroyed and alleviating the pain derived from the burns. While tissue regeneration techniques have been developed, less is known on the treatment of the induced pain. Thus, appropriate animal models are necessary for the development of the best treatment for pain induced in burned tissues. We have developed a methodology in the zebrafish aimed to produce a new animal model for the study of pain induced by burns. Here, we show that two events linked to the onset of burn-induced inflammation and neuropathic-like pain in mammals, degeneration of axons innervating the affected tissues and over-expression of specific genes in sensory tissues, are conserved from zebrafish to mammals. J. Cell. Physiol. 229: 300-308, 2014. © 2013 Wiley Periodicals, Inc.
- Journal of cellular physiology.J Cell Physiol.2014 Mar;229(3):300-8. doi: 10.1002/jcp.24447.
- Exposing tissues to extreme high or low temperature leads to burns. Burned animals sustain several types of damage, from the disruption of the tissue to degeneration of axons projecting through muscle and skin. Such damage causes pain due to both inflammation and axonal degeneration (neuropathic-lik
- PMID 23929528
Japanese Journal
- Identification of larvae of two Gymnocanthus (Cottidae) species based on melanophore patterns
- Yamazaki Aya,Munehara Hiroyuki
- Ichthyological research : an official journal of the Ichthyological Society of Japan 62(2), 240-243, 2015-02-26
- NAID 40020340750
- Genetic corroboration of Engraulis mordax larvae in the upper Gulf of California, a previously undescribed spawning habitat
- Diaz-Viloria Noe,Sanchez-Velasco Laura,Lavin Miguel F. [他]
- Ichthyological research : an official journal of the Ichthyological Society of Japan 62(2), 230-235, 2015-02-26
- NAID 40020340727
- Influence of temperature on the growth and survivability of sichel larvae Pelecus cultratus reared under controlled conditions
- Kujawa Roman,Furgala-Selezniow Grazyna,Mamcarz Andrzej [他]
- Ichthyological research : an official journal of the Ichthyological Society of Japan 62(2), 163-170, 2015-02-26
- NAID 40020340674
Related Links
- A larva (plural larvae pron.: /ˈlɑrviː/) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life ...
- Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form. Each of the stages is separated by a moult, in which the hard exoskeleton is shed to allow the animal to ...
Related Pictures
★リンクテーブル★
[★]
- 英
- larva、larvae、larval
- 関
- オタマジャクシ、幼虫、ウジ
[★]
オタマジャクシ
- 関
- larva、larvae、maggot
[★]
- 関
- larva、larvae、tadpole
[★]
- 関
- larva、larvae
[★]
- 英
- larva、larvae、larval
- 関
- 幼生
[★]
プルテウス幼生
- 関
- pluteus larva
[★]
プラヌラ幼生
- 関
- planula larva
[★]
プリズム幼生
- 関
- prism larva
[★]
幼生、幼虫
- 関
- larvae、larval、maggot、tadpole