Zipatso angiosperms anapangidwa kuchokera n'kuwasanganiza pistil

tomato yowutsa mudyo, onunkhira peyala, Kanthanga youma ndi carambola zosowa - izi zonse angatchedwe mawu amodzi - ". chipatso cha angiosperms ndi" Anapangidwa kuchokera duwa, ndipo chimagwiritsidwa ntchito mwa munthu moyo wake. Kodi mapangidwe a thupi la zomera, kukambirana mwatsatanetsatane m'nkhani ino.

Kodi zomera ndi angiosperms

Angiosperms panopa kugwira udindo lalikulu pa dziko. izi ufumu Division mbewu kuli mitundu zoposa 250 zikwi. Chotero msinkhu kutambasuka akwaniritsa chifukwa cha zinthu pang'onopang'ono kwa dongosolo lake. Iwo yodziwika ndi kukhalapo kwa ziwalo zobereka la kubalana - duwa, pawiri umuna. Chulukitsani zomera vegetative osati kokha, komanso kudzera mwa mbewu. Zipatso angiosperms anapangidwa wa maluwa.

Features awiri umuna zomera maluwa

Waukulu zinchito mbali ya duwa ndi stamen amene akutukuka maselo nyongolosi mwamuna ndi pistil. Mu gawo ili ndi gamete wamkazi ndi pakati nyongolosi selo. The ndondomeko ya umuna mu zomera maluwa ndi yoyamba kubereketsa zomera. Amakhala mu kulanda mungu kuchokera anther kuti manyazi a stamens pistil. Zimenezi zikachitika ndi mphepo, madzi, tizilombo kapena anthu.

Zipatso angiosperms anapangidwa kuchokera m'munsi gawo kukodzedwa a pistil lotchedwa n'kuwasanganiza. umuna awiri amene amasamalira umuna. Kamodzi pa manyazi, iwo sanayende payekhapayekha mu n'kuwasanganiza a pistil lapansi. Izi zachitika ndi machubu nyongolosi. Pang'onopang'ono limakula pansi - kuchokera manyazi mwa ndime mu n'kuwasanganiza lapansi. Ndipo iwo ukupita pansi ndi awiri gametes wamwamuna. Kapangidwe ka duwa angayerekezedwe ndi Nyamulani nyumba multistory.

Akufika n'kuwasanganiza wina spermatozoon zikugwirizana ndi dzira kupanga Ndisanaumbidwe mbewu. M'menemo muli mbali zonse za tsogolo la mbewu. Izi embryonic mizu, phesi, tsamba ndi gemmule. A umuna chachiwiri mafyuzi ndi chapakati nyongolosi selo. Chifukwa chaubale aumbike endosperm, amene akutumikira monga malo zatu. M'kupita kwa nthawi, anapanga mkati mwa mbeu ya zipatso. Amakhala wosabadwayo, ndi endosperm wosanjikiza peel ndi. Mbewu ziwalo zobereka zomera maluwa.

Chipatso angiosperms

Chimodzi mwa zinthu zotsogola zomera maluwa ndi mbewu zawo ndiotetezedwa. Popeza zipatso angiosperms anapanga ku munsi n'kuwasanganiza kuteteza makoma ake mkati mbewu osauka mavuto onse chokhwima zachilengedwe. Izi ziwalo zobereka zomera tichipeza mbewu ndi pericarp, amene nawonso, wapangidwa ndi zigawo zitatu: lakunja, pakati komanso mkati. Malinga kukonza kusiyanitsa youma ndi yowutsa mudyo zipatso. Mwachitsanzo, chitumbuwa ndi maula drupe ali membranous akunja, minofu sing'anga ndi zigawo ossified lamkati.

Chifukwa kupanga angiosperms zipatso

Mu ambiri a milandu, ndi mwana wosabadwayo mu angiosperms akukula khoma n'kuwasanganiza a pistil lapansi. Pankhaniyi, umatchedwa lino. Zitsanzo za nyumba amenewa ndi drupe, mabulosi, nyemba, bokosi, achene. Koma ngati mu mapangidwe chipatso amatanganidwa ndi zina ziwalo za maluwa, ndi wabodza. Izi akhoza proliferating cholandirira, calyx. zipatso chonyenga ndi yowutsa mudyo polyspermic apulo, ndilo khalidwe osati kwa eponymous nthumwi Rosaceae banja, komanso quince, phiri phulusa, chilombo ananyamuka, hawthorn, irgi. Onse bwino wakuda ndi wofiira currant, elderberry, jamu, kiranberi, dogwood ndi dongosolo ofanana.

Kapangidwe ndi gulu la zipatso

Chifukwa chipatso angiosperms ikusintha mbali ya duwa, kapangidwe ka inakula awo. N'zosavuta kutsimikizira. Mwachitsanzo, ngati munsi maluwa, izo aumbike mwa nambalayi a zipatso yosavuta. Ngati kumene n'kuwasanganiza angapo zinaphatikizidwa limodzi, kupanga zovuta zobereka limba. Izi zimachitika raspberries lapansi. Izi zipatso - zotsatira za maphatikizidwe wa ambiri drupes. Ndipo strawberries ndi sitiroberi mtedza yaing'ono amizidwa zobiriwira ndi mafupa okhaokhayo mwaikamo mnofu m'munsi cholandirira.

Zipatso anali ophatikizana m'magulu zifukwa zingapo. Woyamba ndi nambala ya mbeu. Lachiwiri - makamaka kapangidwe ka pericarp lapansi. Malinga ndi mbali choyamba amasiyanitsa one- (drupe, achene) ndi polyspermous zipatso (zipatso, kapisozi). Malinga ndi mbali yachiwiri - yowutsa mudyo (owawa lalanje, dzungu), ndi youma (nyemba, mtedza).

Kutanthauza zipatso mu chikhalidwe

zipatso ndi zofunika kwambiri kufalitsa mbewu komanso zomera kufalitsa. Ndi yowutsa mudyo ndipo chokoma chipolopolo zoteteza, iwo ankakonda azichitira nyama zambiri. Kudya zipatso, herbivores imodzi kugawira mbewu, amayenda malo. zigawo pericarp ndi chitetezo chodalirika mbewu kusintha zinthu zachilengedwe, kutentha mosiyanasiyana, kupanda chinyezi ndi kutentha. Man kale ntchito chipatso chakudya, chongopeka ayipanga mitundu yambiri ya zipatso, zipatso, mavwende ndi gourds ndi mbewu chakudya. Chaka chilichonse, obereketsa, asayansi popanga mitundu yatsopano ya zomera ndi zokolola.

makoma zipatso kotero angiosperm anapangidwa kuchokera pistil mbali n'kuwasanganiza ndi zina maluwa: a cholandirira kapena carpels. Mulimonsemo, chipatso chifukwa cha chitukuko cha duwa, awiri umuna , ndi kumachita ngati chomera kafalitsidwe.