Zonke izityalo zichitha amandla amakhulu ngexesha lokuvelisa iintyatyambo zazo. Ngoba? Kuba iya kuxhomekeka, kungekuphela kwesinye isizukulwana esinokubakho, kodwa kwanokusinda kohlobo ngalunye lohlobo oluhlala emhlabeni. Ezinye zilula kunezinye, kodwa uninzi lwazo lunesakhiwo esaziwa njenge ukuqina.
Le yinxalenye yamalungu eentyatyambo angamadoda, kwaye yeyona nto inoxanduva (kunye nomoya) ukuba kwindalo esingqongileyo, ngakumbi ngexesha lentwasahlobo, kukho ubuninzi bepollen.
Yintoni intambo kwaye zithini iinxalenye zayo?
Amandla Luhlobo lomsonto omde ophuma embindini wentyatyambo othwala isipava somungu apho kuveliswa iinkozo zomungu.. Iseti ye stamens ibizwa ngokuba yi androecium, kwaye iyinxalenye yenkqubo yamadoda yokuzala yezityalo, zombini imithambo (Zizo ezingayikhuseliyo imbewu yazo, ezinje ngeeconifers okanye iiferns) ezinje nge Iinkqubo (Zezabo ziyayikhusela imbewu, kwaye zihlala zineentyatyambo ezibukhali kakhulu, ezinjenge-bulbous okanye uninzi lwemithi).
Iindawo zayo zezi zilandelayo:
- Intambo: sisiqu esincinci esixhasa i-anther. Isenokuba laminar okanye yahlulwe, kuxhomekeke kusapho lwesityalo.
- Teak: teak ziziqingatha ezibini ezahlulwe anther. Ngokwesiqhelo nganye ineengxowa ezimbini apho umungu uveliswa khona.
- Ukunxibelelana: yinxalenye yethishu engenazintsholongwane ebambe iti kunye kwaye yenze umzimba kunye nayo.
- Ingxowa yomungu: ikwabizwa ngokuba yi-sporangium, sisakhiwo apho umungu uveliswa khona.
Yahluke njani i-angiosperms ye-angiosperms kuleyo ye-gymnosperms?
I-morphology yayo iyatshintsha kancinci kuxhomekeke kuhlobo lwesityalo:
IiAngiosperms
I-stamen inokuba yinto ebandakanyiweyo ephepheni, okanye inokudityaniswa kwisamkeli ngentambo. Kwimeko yokugqibela, inxenye yethishu eqinisa imilebe yayo emibini, iyibambe kunye, yaziwa njengesihlanganisi, esingaphuhliswanga kakuhle kwizityalo ezithile zangaphambili, itiak ibonakala kakhulu.
IiGymnosperms
Umfanekiso - iklasi2005
Ezi zityalo une-stamens ezinje ngesikali, apho sifumana iingxowa zomungu.
Zeziphi iintlobo zomsonto ezikhoyo?
Zimbini iintlobo:
Ukuqhawulwa kwamalungu
Zizo ezo zidityaniswe ngokujikeleza okufanayo:
- Iidadifs: Zidityaniswe zangamaqela amabini e-androic, kodwa hayi ngokupheleleyo.
- IiMondelphs: Zidityanisiwe zaba sisakhiwo esinye esidityanisiweyo.
- Iipolyadifoni: zidityanisiwe kwizakhiwo ezahlukeneyo ze-androic.
- i-synantheria: zezona zidibanise ezinye.
Ukwandisa stamens
Ezi stamen zezona zimanyene ngaphezulu komoya omnye:
- I-Didynamos: zimbini izibini ze stamens zobude obahlukeneyo.
- Iziqendu: vuka kwi-corolla.
- Ukuhambisa: zezi zidlula ikhola
- Ifakangokungafaniyo neyangaphambili, ezi azidluli kwi-corolla.
- Ukuqhuma: zizona zide kakhulu, ezandisiweyo ngaphaya kwekorola.
- Iitetradynamos: Vuka njengeqela lesithandathu, apho ezimbini zimfutshane kunabanye.
Yintoni umsebenzi womsonto?
Ngaphandle kwe-stamens, zizityalo kuphela ezinokuphindaphindwa ngokusikwa, iisucker okanye izitokhwe ziya kubakho Ngamanye amagama, umhlaba ubuya kwahluka kakhulu kule siyaziyo. Kodwa nguwuphi umsebenzi okanye imisebenzi abayifezekisayo ngokuchanekileyo?
Ukutsala i-pollinators
Ngamaxesha athile, isitayile siba sisakhiwo esisebenza ukutsala umdla wezinto ezinokuthi zenze impova, njengamagqabi. Kodwa kunzima ukuyichaza, kuba ayiphawulwa; sinokufumanisa ukuba ineengxowa zomungu kwisiseko sayo.
Ivelisa umungu
Umungu yingqolowa eveliswe kwi-stamen equlathe ulwazi lwemfuza lwesityalo esidala esityebileyo. Nje ukuba ifike kwintyatyambo yabasetyhini, ichumisa i-ovary kwaye imbewu iqala ukukhula, eya kuthi ikhule ingakhuselekanga kwimeko yejimnosperms, okanye nge-'gobolondo 'elingaphezulu nangaphantsi okanye elincinci' kwimeko ye-angiosperms.
Ivelisa incindi
Xa oku kusenzeka, endaweni yokuba kubizwe ngokuba yistamen, kubizwa ngokuba zii-staminal nectaries. Kodwa yintoni incindi? Yisisombululo esingamanzi esityebileyo kwiswekile, iiamino acid, ii-ioni zezimbiwa kunye nezinto eziyinika ivumba elithile.. Izilwanyana ezininzi ziyayithanda, into ethi izityalo ziyisebenzise ukuze zizindwendwele ezi ntyatyambo zize zenze umungu kuzo.
Nangona ewe, akufuneki sidideke: ngaphambi kokuvela kwezilwanyana, sele bevelise incindi. Ngapha koko, kuyaziwa ukuba xa amagqabi ekhula ngokukhawuleza, afuna incindi engaphezulu kunaleyo ikhula ngayo. Ngesi sizathu, baninzi abanamadlala avelisa incindi kwiindawo ezingezizo ezokuzala, ezinjengamagqabi.
Njengoko sele sibonile, i-stamen sisakhiwo esibonakala silula, kodwa ngaphandle kwaso impova ayinakwenzeka. Kungenxa yoko le nto ibaluleke kangaka.
Siyathemba ukuba okufundileyo ngaye kuluncedo kuwe. Ukuba ubufuna ukwazi okungakumbi, oku kunokuba ngumdla kuwe:
