Kmen: Porifera, Cnidaria - Masaryk University

Kmen: Porifera, Cnidaria - Masaryk University

Systm a evoluce bezobratlch 3. cvien J. Schenkov Metazoa bazln mnohobunn Porifera 2 - 4 vvojov linie spojen do 1 kmene vtinou mot, pisedl ostie, kanlky, spongocel, osculum pinakocyty (pinakoderm), choanocyty (choanoderm), mezoglea (mezohyl) askon, sykon, leukon Hexactinellida Choanoflagellata + Ministeriida Demospongia Calcispongia Ctenophora

Placozoa Eumetazoa Cnidaria Bilateralia (+ Myxozoa) askon sykon leukon Systm a evoluce bezobratlch 3. cvien J. Schenkov Kmen: Porifera pohlavn rozmnoovn - (larva: PARENCHYMULA, AMFIBLASTULA), gonochorist sladkovodn hermafrodit (mot) nepohlavn - vnitn puen - gemulace (mikrosklry

amfidisky), tak vnj puen Systm a evoluce bezobratlch 3. cvien J. Schenkov tda: Hexactinellida - kemit Mosk druhy, estietn jehlice z SiO2, stmelen sponginem Euplectella aspergillum - houba pleten Venuin ko, hlubinn, Tich ocen Systm a evoluce bezobratlch 3. cvien J. Schenkov tda: Demospongia - rohovit mosk i sladkovodn druhy, jen leucon, kemiit jedno nebo 4-os megasklry rzn mikrosklry, vtinou tak sponginov kostra skupina: Sclerospongia Druhy podmoskch jeskyn, maj

kostru z kemiitch jehlic a sponginu na masivnm vpenitm podstavci Systm a evoluce bezobratlch 3. cvien J. Schenkov d: Monaxonida - jednoos Sladkovodn, kostru tvo sponginov vlkna a kemiit jednoos jehlice Ephydatia fluviatilis - houba n - povlaky na kamenech a vodnch rostlinch, amfidisky Spongilla lacustris - houba rybnin stojat vody, mikrosklry Poterion neptuni - houba pohrov, Cliona viridis - houba asov, rozpout Ca, vytvo si komrku Systm a evoluce bezobratlch 3. cvien J. Schenkov d: Keratosa Mot, jen sponginov kostra Euspongia officinalis - houba myc, Stedozemn moe, sovit spongin

Verongia aerophoba houba komnov, Stedozemn moe, srov lut sloupky Systm a evoluce bezobratlch 3. cvien J. Schenkov tda: Calcispongia - vpenat Druhy mlkch mo, jen zde vpenit jehlice z CaCO3, nkdy voln nebo masivn kostra, vechny 3 typy stavby Sycon raphanus - houba votinat -trojos jehlice, -oblast Stedozemnho moe -tln stavba sykon -vnec jehlic kolem oscula Leucosolenia askonov typ Systm a evoluce bezobratlch 3. cvien J. Schenkov Eumetazoa Kmen: CTENOPHORA ebernatky

mot, asi 80 druh solitrn, pelagicky, benticky bez ahavch bunk biradiln symetrie 8 podlnch ad kmitajcch lupnk d: Tentaculifera - tykadlovky Cestus veneris - psovnice venuina d: Nuda - ebrovky Beroe cucumis - ebrovka vejit Hexactinellida Choanoflagellata + Ministeriida Demospongia Calcispongia Ctenophora Placozoa Eumetazoa

Cnidaria Bilateralia (+ Myxozoa) Hexactinellida Systm a evoluce bezobratlch 3. cvien J. Schenkov Choanoflagellata + Ministeriida Kmen: CNIDARIA ahavci mot, nkter Hydrozoa brakick a sladk vody ahav buky - cnidocyty schopnost regenerace, symbiza s asami

ektoderm, entoderm, mezoglea metageneze (krom Anthozoa) polyp - medza larva planula polyp difzn NS, medza sloitj - na obvodu zvonu oi, statocysty, rhopalia Demospongia Calcispongia Ctenophora Placozoa paragastrln dutina ektoderm ektoderm Cnidaria Bilateralia (+ Myxozoa)

Systm a evoluce bezobratlch 3. cvien J. Schenkov 1. tda: Anthozoa - korlnatci mot pisedl, kolonie i solitrn, vytv korlov tesy Anthozoa pouze polyp, vytv gamety, Anthozoa Staurozoa bilaterln symetrick vnitn stavba Staurozoa

Cnidaria Cubozoa Cnidaria v lce ebrovit pepky - septa Cubozoa Scyphozoa exoskelet z CaCO3 Scyphozoa Hydrozoa theca - pohrkovit tvar Hydrozoa na bzi polypa sklerosepta (soust exoskeletu) endoskelet z rohovitho koralnu a vpenitch tlsek dlouh blanit sarkosepta pohlavn rozmnoovn - planula zklad lky nepohlavn - puen Systm a evoluce bezobratlch 3. cvien J. Schenkov podtda: Octocorallia - osmietn 8 sarkosept, 8 (nebo nsobek) zpeench chapadel Tubipora musica - varhanitka - kolonie koovit lalonat bez skeletu, erven kostra, zelen

polyp Corallium rubrum - vtvikovit i keovit kolonie, osn skelet erven korl ze Stedozemnho moe Pennatula rubra - provnk - ploch, prun kolonie, tvar ptaho pera osn polyp kotv v substrtu, dceinn vyrstaj na postrannch vtvikch Systm a evoluce bezobratlch 3. cvien J. Schenkov podtda: Hexacorallia - estietn 6 sarkosept, 6 (nebo nsobek) sklerosept, chapadel vce, exoskelet z CaCO3, Actiniaria - sasanky Solitrn bez exoskeletu, siln mezoglea vyztuen jehlikami z kolagennch fibril, non ter - posun po podkladu, akoncie ahav vlkna Anemonia sulcata - sasanka hnd Scleractinia - vtevnci Vnj kostra ve tvaru pohrku se sklerosepty, velk kolonie, vpenit

skelet, tropick oblasti, tvorba tes, Zooxanthella v entodermu Diploria cerebriformis (vtevnk mozkov) Systm a evoluce bezobratlch 3. cvien J. Schenkov 2. tda: Staurozoa - kalichovky Pisedl scyphomedza hbetn stranou k podkladu Lucernaria tethis kalichovka v chladnch moch cirkumpolrn Lucernaria quadricornis Anthozoa Anthozoa c Staurozoa Staurozoa Cnidaria Cnidaria

3. tda: Cubozoa - tyhranky c Cubozoa Cubozoa Scyphozoa Scyphozoa Hydrozoa Hydrozoa Tlo medz vysok, vyklenut, na bzi 4 chapadel pedlia Chironex fleckeri (tyhranka Fleckerova) Carybdea marsupialis (tyhranka stedomosk) Systm a evoluce bezobratlch 3. cvien J. Schenkov 4. tda: Scyphozoa - medzovci

ivotn cyklus: planula polyp strobilace ephyra scyphomedza vt, sloitj stavba smyslov orgny v roplich Anthozoa Anthozoa Staurozoa Staurozoa Cnidaria Cnidaria Cubozoa Cubozoa c Scyphozoa Scyphozoa Hydrozoa Hydrozoa

Nejastj scyphomedzy, chobotovit manubrium se 4 cpy (lov potravy) Pelagia nocticula - talovka svtiv Aurelia aurita - talovka uat Rhizostoma pulmo - koenostka plicnat, mikrofg, chapadla redukovna, funkn nahrazena sloitou stavbou manubria Systm a evoluce bezobratlch 3. cvien J. Schenkov 5. tda: Hydrozoa - polypovci Cnidaria Cnidaria Anthozoa Anthozoa Staurozoa Staurozoa

Cubozoa Cubozoa pevld stdium polypa - hydropolyp Scyphozoa Scyphozoa lka bez sept Hydrozoa c Hydrozoa laterln vznik polypoidnch nebo medzoidnch zoid 1/3 m stdium voln medzy hydromedza m na okraji zvoncovitho tla charakteristick blanit lem - velum - plachetka d: Hydroida podd: Leptomedusae Mot i sladkovodn, stdium pelagick medzy chyb, medzov stdium je redukovno na pisedl gonofory Aglaophenia pluma Systm a evoluce bezobratlch 3. cvien J. Schenkov podd: Limnomedusae

Sladkovodn nebo brakick vody, polyp tvo frustruly k vegetativnmu rozmnoovn. Craspedacusta sowerbyi medzka sladkovodn, zavleena z Ameriky, sklenky i voln proda. Jedin sladkovon druh s metagenez a pelagickou medzou. podd: Hydrina - nezmai Sladkovodn bez stdia medzy, vegetativn r. - puen, nepznv podmnky pohlavn buky, vajko v ootce. Hydra vulgaris, Hydra oligactis, Hydra viridissima - 3 typy bunk - cnidocyty volvent, glutinant, penetrant Systm a evoluce bezobratlch 3. cvien J. Schenkov d: Trachylina - hydromedzy Stdium polypa redukovan nebo zmizelo Liriope bez stdia polypa Systm a evoluce bezobratlch 3. cvien J. Schenkov

d: Siphonophora - trubi Mot koloniln, plavou na hladin, vznej se, polypoidn a medzoidn polypi na kolmm stvolu, spolen orgny, bez medzy pneumatofory daktylozoidi gastrozoidi gonozoidi nektofory Physalia physalis - mchovka portugalsk pneumatofor modr, nkolik m dlouh chapadla Physophora hydrostatica - mchovka vzniv erven kolonie

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