Otu ndị ọkà mmụta sayensị emepụtala ihe ọhụrụ kemịkalụ nke na-egbochi photosynthesis na akwụkwọ osisi: ọ na-egbochi ọrụ nke mgbagwoju protein nke na-eme otu n'ime mmeghachi omume dị mkpa nke usoro ahụ - decomposition nke mmiri na oxygen. Ihe a nwere ike ịghọ ihe atụ nke herbicides na-alụ ọgụ ata, ebe ọ na-adịghị njọ nye mmadụ na anụmanụ. A na-ebipụta nsonaazụ nke ọmụmụ ahụ, nke nkwado sitere n'aka Russian Science Foundation (RSF), na magazin Cells, na-akọ. "Gazeta.ru".
Photosynthesis bụ usoro ihe ọkụkụ na-esi na-emepụta ogige ndị sitere na carbon dioxide na mmiri na ìhè. A na-eme ya site n'enyemaka nke nnukwu protein protein abụọ - photosystems 1 na 2 (PS1 na PS2), nke ọ bụla n'ime ha nwere ebe mmeghachi omume, protein na pigmenti gbara ya gburugburu. N'okpuru mmetụta nke ìhè anyanwụ, chlorophyll na mmeghachi omume center na-abanye n'ọnọdụ obi ụtọ ma na-ebufe electrons ya na ụmụ irighiri ihe ndị ọzọ dị na photosystem. Mgbanwe eletrọn na-esote na-esonyere ya na nchịkọta nke ụmụ irighiri ike dị elu, dị ka ATP, na-etinye aka na njikọ nke ogige organic. Enweghị electrons furu efu site na chlorophyll na-akwụ ụgwọ site na mwepu nke mkpụrụ ndụ mmiri - ọ bụ n'oge usoro a ka a na-ewepụta ikuku oxygen dị ka ngwaahịa.
Ndị ọkà mmụta sayensị si Institute of Fundamental Biological Problems of the Russian Academy of Sciences (Pushchino) na ndị ọrụ ibe si Gazi University (Turkey) synthesized ọhụrụ compound dabeere na ọla kọpa na organic iberi nke na-egbochi photosynthesis na epupụta. Iji chọpụta mmetụta nke ihe ahụ, ndị odee wepụrụ membranes thylakoid nwere PS2 - ihe dị n'ime chloroplasts - site na akwụkwọ wee tinye ihe ngwọta nke ogige ọhụrụ ahụ na nkwusioru nke kpatara ya. A na-enyocha mmetụta mgbochi ahụ site na ole ntọhapụ oxygen na-eme ka ìhè belata - ya mere, ọnụ ọgụgụ ya belatara site na 69%. Na mgbakwunye, a na-enyocha mmetụta nke ihe ahụ site na ọtụtụ mmeghachi omume ndị ọzọ na-akọwa ọrụ PS2: dịka ọmụmaatụ, mgbakwunye nke inhibitor belatara ọkụ chlorophyll n'oge photosynthesis. N'otu oge ahụ, ịdị irè nke ọgwụ ahụ agbanweghị ka oge na-aga, ma dabere naanị na ntinye ya.
Mbelata mmepụta oxygen na-egosi na photosystem anaghị arụ ọrụ nke ọma. A na-eche na isi ihe mgbaru ọsọ nke ahịhịa ahịhịa ọhụrụ bụ ebe mmeghachi omume nke mgbagwoju protein: ihe ahụ na-ejikọta na isi PS2 ma gbanwee nhazi ya. N'ihi nke a, ndị ọkà mmụta sayensị kwenyere na usoro nnyefe ụgwọ n'etiti ihe ndị dị na eriri ụgbọ njem eletrik kwụsịrị.
Enwere ike iji onye na-emepụta ihe na-emepụta ihe na-emepụta ihe ọkụkụ ọhụrụ, nke a ga-eji, dịka ọmụmaatụ, n'ọgụ megide ahịhịa na-eto ngwa ngwa nke na-apụta tupu ihe ọkụkụ amalite. Ebe ọ bụ na mmeghachi omume nbibi nke mmiri na-eme naanị n'ime mkpụrụ ndụ ihe ọkụkụ, ọ ga-abụ na ihe ọkụkụ ahụ ga-adị mma maka mmadụ na anụmanụ.
"Anyị emepụtala ihe nke ga-ekpochapụ ụdị osisi ndị a na-achọghị nke ọma, si otú ahụ na-amụba ihe ọkụkụ nke ọma. Ihe ndekọ ndị a nwere ike ịghọ ntọala bụ isi maka ịmepụta ihe ndị na-arụ ọrụ nke ọma na nchịkọta kachasị dị ala," ka onye edemede mbụ nke ọrụ ahụ, Sergei Zharmukhamedov, Candidate of Biological Sciences, na-eduzi nchọpụta na Institute of Fundamental Biological Problems of Russian na-ekwu. Ụlọ akwụkwọ sayensị.
Ndị ọkà mmụta sayensị sitere na Institute of Molecular Biology and Biotechnology of the National Academy of Sciences of Azerbaijan (Baku), Institute of Plant Physiology nke aha ya bụ K.A. Timiryazev (Moscow), Mahadum King Saud (Saudi Arabia) na Moscow State University aha ya bụ M.V. Lomonosov (Moscow).