Tipu Teitei: spore me te purapura

tipu teitei - he momo e kua hanga ū me kua urutau ki to ratou noho hou enei. He neke atu i te 300,000 ngā momo. E kitea tipu Higher e whekau vegetative, pērā i pakiaka, me te kopere, ka whai i te taua photosynthetic uhi: chlorophylls me carotenoids.

tipu Higher mo te wahi tino whai taea te matū pūnaha ikiiki matatini whakahaere te whakaetonga o te wai mā te rau. teitei pūtau tipu hanga kiko. vai Sporophyte i roto i te huringa ora (anake bryophytes).

heke gametophyte Postpenno te ki te pūtau torutoru. Tinana o moepuku, me te whakaputa uri tōtahi o kaiao multicellular. Kikiritanga ki momo pōauautanga mutu ki te whakawhirinaki i runga i te wai. homai kākano ara ki te kukune multicellular.

Higher tipu whenua hanga te nuinga o koiora o te whenua - e pā ana ki 90%.

Systematics o ngā tipu teitei

Hoki tipu teitei He teitei me teitei otaota uri spore.

spore Teitei: rinieobraznye (parawae anake) psilotoobraznye (tiaki e pā ana ki te 20 ngā momo), bryophytes (23-27 mano momo), plaunoobraznye (e pā ana ki 1300 ngā momo), hvoscheobraznye (e pā ana ki te 30 ngā momo), kaponga (e pā ana ki 12,000 ngā momo).

tipu teitei i ngā pua momo Botany te ingoa noa - spore teitei. Ēnei ngā e rua momo ngā wā me te ngaro. Kei te wehea teitei tinana spore ki runga ake-whenua me nga wahi raro, kua whakawhanakehia whekau vegetative. Ko te huringa ora ngā o te whakarerekētanga o whakatupuranga: te sporophyte me gametophyte. Kei te pai te whakawhanakehia Sporophyte, noho hoki te wa roa (anake bryophytes). whakawhanake te reira i sporangia multicellular, i muri i pūira o nei i hanga te pua haploid aueue ore. Ko ratou pūtau-tahi, rahi iti, horahia e te nuinga i te hau, me te whakarau i roto i te gametophyte.

puta kikiritanga spore teitei anake i roto i te aroaro o te wai. E ai ki te whakaritenga o whēkau o uri wehewehe tipu taera rua (e whai e rua tane me ngā pūtau wahine), me te takatāpui (ranei he pūtau tane wahine ranei).

kia rerekē, me te rahi taua tautohetohe. Higher tipu spore e whai te taua tautohetohe, ka karanga ravnosporovyh me te hunga ki te kupu tautohetohe rerekē - heterosporous. Tei runga i te rahi wehewehe microspores (rahi iti) me megaspory (nui).

Kei te whakapono te reira e tupu tika nga otaota uri i spore, ngā rarauhe.

otaota uri Teitei: pinofity (gymnosperms) - e pā ana ki 800 ngā momo magnoliofity (angiosperms) - 300 mano momo.

tae Higher otaota uri ona tihi i roto i te wā Mesozoic, ka ka ake maroke me te matao te āhuarangi, i reira ko tetahi huringa o taima. I tēnei wā, ko te momo tino noa o angiosperms.

tipu purapura i te maha o ngā painga mo spore teitei. ngā ratou o te taua whekau: pakiaka, mawhiti, uri. Ko tino kaha atu i taua o te spore te kātua, rite tupu te reira ngā pūtau rakau. Ki te ko te wahi matua o nga pūtau rakau tenei - mate.

He anake heterosporous tipu uri. Gametophyte ki sporophyte whakawhanake me whangai i tona utu.

Whakatö e wahi i te tikanga o purapura e kua hanga e embryos multicellular, e ngā supply o ngā matūkai. Kikiritanga uri teitei mua ruinga hae - te whakawhitinga o pata hae i roto i te haamataraa huero o te hua manu. whakamana ruingahae e hau, te wai, kararehe, me ngā ngārara. mutu kikiritanga ki te whakawhirinaki anake i runga i te wai rite i roto i te spore teitei. Ko reira e tika ana ki te vegetative pūtau o te hae i tīnaku i te ngongo hae.