Cacti ndi zomera zapadera komanso zochititsa chidwi zomwe zasintha kuti zikhale ndi moyo m'malo ovuta komanso ouma kwambiri padziko lapansi.Zomera za prickly izi zimatha kupirira chilala chambiri, kuzipangitsa kukhala zokongola komanso zosiririka.M'nkhaniyi, tifufuza za dziko la cacti ndikuwona chifukwa chake samafa ndi ludzu.
Chimodzi mwazinthu zodziwika bwino za cacti ndi masamba awo okoma.Mosiyana ndi zomera zambiri zomwe zimadalira masamba awo kuti apange photosynthesis, cacti yasintha kuti isunge madzi mu tsinde lakuda ndi minofu.Zoyambira izi zimakhala ngati nkhokwe, zomwe zimalola cacti kusunga madzi ochulukirapo nthawi yamvula kapena chinyezi chambiri.Njira yosungiramo madzi yomangidwirayi imathandiza kuti cacti apulumuke kwa nthawi yaitali ya chilala, chifukwa amatha kulowa m'malo osungiramo madzi pamene madzi akusowa.
Kuphatikiza apo, cacti asintha masamba awo kuti achepetse kutaya madzi.Mosiyana ndi zozama komanso zamasamba zomwe zimapezeka muzomera zambiri, cacti apanga masamba osinthidwa otchedwa spines.Mitsukoyi imagwira ntchito zingapo, chimodzi mwazo ndikuchepetsa kutayika kwa madzi kudzera pakutuluka.Pokhala ndi malo ocheperako komanso ang'onoang'ono omwe amawonekera mumlengalenga, cacti imatha kusunga madzi ochepa omwe ali nawo.
Kuphatikiza pa kuthekera kwawo kodabwitsa kosungira madzi, cacti apanganso mawonekedwe apadera a thupi ndi ma anatomical kuti apulumuke m'malo owuma.Mwachitsanzo, cacti ali ndi minyewa yapadera yotchedwa CAM (Crassulacean Acid Metabolism) yomwe imawalola kupanga photosynthesis usiku, kutentha kukakhala kozizira komanso chiwopsezo cha kutaya madzi kudzera mu nthunzi chimakhala chochepa.photosynthesis yausiku imeneyi imathandiza cacti kusunga madzi masana, pamene dzuŵa lotentha limatha kuwononga madzi awo mwamsanga.
Kuphatikiza apo, cacti ali ndi mizu yozama komanso yofalikira yomwe imawathandizira kuti azitha kuyamwa mwachangu chinyezi chilichonse chomwe chili m'nthaka.Mizu yozama imeneyi imafalikira mopingasa m'malo mozama kwambiri, zomwe zimathandiza kuti zomera zitenge madzi kuchokera kumtunda waukulu.Kusintha kumeneku kumapangitsa kuti cacti agwiritse ntchito bwino ngakhale mvula yaying'ono kwambiri kapena mame, kukulitsa momwe amamwa madzi.
Chosangalatsa ndichakuti cacti ndi akatswirinso ochepetsa kutaya kwawo konse kwamadzi kudzera munjira yotchedwa crassulacean acid metabolism.Zomera za CAM, monga cacti, zimatsegula stomata usiku kuti zigwire carbon dioxide, kuchepetsa kutaya kwa madzi panthawi yotentha kwambiri masana.
Pomaliza, cacti asintha zinthu zambiri zomwe zimawathandiza kuti aziyenda bwino m'malo owuma ndikupewa kufa ndi ludzu.Masamba awo okoma amasunga nkhokwe zamadzi, masamba awo osinthidwa amachepetsa kutayika kwa madzi, photosynthesis yawo ya CAM imalola kugwidwa kwa carbon dioxide usiku, ndipo mizu yawo yosazama imakulitsa kuyamwa kwamadzi.Zosintha zochititsa chidwizi zikuwonetsa kulimba mtima komanso kupulumuka kwa cacti, zomwe zimawapangitsa kukhala akatswiri opirira chilala.Nthawi ina mukadzakumana ndi cactus m'chipululu, tengani kamphindi kuti muyamikire kusintha kodabwitsa komwe kumamupangitsa kupirira ndikukula bwino m'malo owoneka ngati ovuta.
Nthawi yotumiza: Aug-31-2023