Leucoplasts ntchito. leucoplasts Avilable

Imodzi mwa zizindikilo za oimira ufumu mbewu ndi kukhalapo mu maselo awo a nyumba wapadera - plastids. Zikuphatikizapo chloroplasts, chromoplasts ndi leucoplasts, kapangidwe ndi ntchito za tikambirana nkhani.

ndi plastids Kodi

Organelles otchedwa plastids la zomera maselo, bowa ndi zina zamoyo. mwana wa ng'ombe uyu anamaliza akalumikidzidwa kuti ndi dongosolo theka-yoyenda yokha. Iwo amatha interconvert wina ndi mzake. Mwachitsanzo, leucoplasts, kapangidwe ndi ntchito za m'mene zinthu zidzasinthire mchikakamizo cha dzuwa mtima mu chloroplasts. Anthu ambiri aona kuti mbatata tubers zeleneeyut. Ichi ndi chifukwa cha wotereyo kusandulika kodabwitsa. Koma ntchito mankhwala ngati chakudya sikuthandiza. Pamodzi ndi chloroplasts mu tubers kusungidwa poizoni - ndi alkaloid solanine. Zingayambitse aakulu poizoni chakudya ndipo ndi owopsa kwa ana.

Pa yakucha zipatso ndi ndiwo zamasamba likugwiritsidwanso interconversion wa plastids. Only mu nkhani iyi anapanga kuchokera leucoplasts chromoplasts kudziwa mtundu wa mbali zosiyanasiyana za mbewu: wachikasu, wofiira, pinki, wofiirira, ndi zina zotero ..

mitundu ya plastids

Leucoplasts plastids chromoplasts, chloroplasts amasiyana onse kapangidwe ndi ntchito anachita. Koma iwo onse mbali yofunika ndipo irreplaceable. luso lophunzitsa mtundu mbali zosiyanasiyana za mbewu chifukwa chakuti chromoplasts muli inki zosiyanasiyana - colorants.

Corolla yowala pamakhala zomera kwambiri - lililonse Umboni wa zimenezi. Chotero mtundu ndi maluwa fungo amakopeka tizilombo kuti kubereketsa zomera ndiponso umuna omwe poyambirira pa mapangidwe zipatso.

Green plastids muli pigment wotchedwa chlorophyll, amene amasankha mtundu. Pamaso pa nkhaniyi (pamodzi ndi carbon dioxide, madzi ndi dzuwa) ndi chofunika otaya za ndondomeko dzuwa. Patapita ake zomera kupanga chakudya oxygen. Loyamba ndilochokera pa iwo gwero la zakudya, kukula ndi chitukuko. A mpweya mpweya anthu onse moyo, ku mabakiteriya anthu, ntchito kupuma.

kapangidwe leucoplasts

Leucoplasts ndi colorless organelles. Ali ndi mawonekedwe ozungulira. dongosolo Kakhungu mu anayamba m'malo ofooka. mawonekedwe a siyana pa zolakwika akakhala cytoplasm awo anayamba kupanga mokwanira lalikulu wowuma mbewu. Leucoplasts plastids ali kuwonjezera apo waukulu chomera minofu. Ndipamene maziko zosintha kuwombera - tubers, mababu, rhizomes. leucoplasts ntchito ndi chimafotokozera ziwalo dongosolo lawo. Mu organelles izi M'mimbamo zingaunjikane zakudya zambiri zamtengo wapatali. Leucoplasts monga plastids onse organelles dvuhmembrannymi. Komabe, chipolopolo mkati si kupanga protrusions osiyana mkati kapangidwe.

Leucoplasts - maselo eukaryotic. Izi zikutanthauza kuti mamolekyulu awo cytoplasm DNA kuti timanyamula mauthenga majini ali pakati chokongoletsedwa.

leucoplasts ntchito

plastids Awa apadera. Malinga mtundu, amatha kudziunjikira ndipo lithe mitundu yosiyanasiyana ya zinthu organic. Mwachitsanzo, zimam'patsa wowuma muli amyloplasts. chuma ndi zina zomera zonse, monga anapangidwa kuchokera shuga, akamagwira photosynthesis. Oleoplasty zokolola ndi sitolo mafuta. Madzi mafuta zimapezekanso maselo ena zomera ndi amatchedwa mafuta. Proteinoplast muli mapulotini. Amachititsa ntchito ngati ndi kapangidwe leucoplasts. Komanso M'mimbamo wofunikila katundu ndi kusunga zinthu zosiyanasiyana zili michere. Izi catalysts kwachilengedwenso amatha imathandizira zosiyanasiyana zachilengedwe mankhwala, koma ndi mbali ya malonda awo. Mothandizidwa Mwachitsanzo, losavuta zimam'patsa shuga polysaccharide wowuma aumbike. Pamene zinthu uka amene ali akumane chifukwa otaya photosynthesis, Iye lamamatira kwa monomers ndi ntchito njira zomera.

Kodi leucoplasts

Popeza Ntchito yaikulu leucoplasts - ndi kudzikundikira zinthu, organelles izi zili mu unakhuthala ndi minofu mbali ya zomera. Makamaka wolemera mu tubers mbatata. Wophunzira aliyense akhoza kuchita Mkhalidwe anachita wowuma kuti ali leucoplasts ake. Kuti tichite zimenezi, basi ayenera kuvala kagawo atsopano a madontho ochepa a ayodini yothetsera. Imawalamulira plastids izi colorless kukhala wolemera wofiirira mtundu. Iwo akhoza chooneka ndi maso ngakhale pa magnification otsika.

The babu wa mbewu nawonso leucoplasts ambiri. Chifukwa yobweretsa madzi ambiri ndi chakudya mizu imeneyi amatha amasamukira nthawi mobisa akumane chilala, chisanu ndi kutentha. Pa nthawi yomweyo kukwezeka mbali yaing'ono zomera akamwalira ndi kupulumuka kusinthidwa amakhalabe yotheka. Mwachitsanzo, tulips mu masabata nthawi kukula ndi ottsvesti. Ndiyeno mu babu awo kudziunjikira chakudya kupangidwa pa dzuwa mbali wobiriwira zomera masika.

Iwo nazonso ndi rhizomes. Aliyense akudziwa kuti n'zovuta kuchotsa namsongole. Iwo sali ngakhale mantha chilala, masamba ndi reappear pamwamba pansi. Chinthu kuti mbewu yokha akufotokozera pansi mu mawonekedwe a unakhuthala kusinthidwa kuthawa ndi internodes elongated. Lili chidwi kuchuluka leucoplasts, motero kundipatsako kwa zinthu.

The endosperm mbewu, mafangasi spores, umakakumana ndi zomera apamwamba ntchito zake ndi chifukwa kukhalapo deta plastids.

Origin leucoplasts

kukhalapo leucoplasts akadali minofu embryonic zomera zamoyo inconclusive. Ndipo iwo anapanga otchedwa proplastids. nyumba izi ndi zofunika organelles onsewa. Poyamba, zili meristem wa - la maphunziro nsalu zomera. Proplastids corpuscles ali tosaoneka kukula kwa 1 micron. Ndi unyolo wonse wa interconversion maselo amenewa organel chomera limayamba ndi iwo.

Choncho, ntchito chachikulu ndi leucoplasts kaphatikizidwe, kudzikundikira ndi kusunga osiyanasiyana zinthu organic koyenera kuti kuli zamoyo.