Triacontanol igenga kwihanganira imyumbati guhangayikishwa n'umunyu ihindura imiterere ya physiologique na biohimiki ya selile y'ibimera.

Hafi ya 7.0% yubutaka bwisi yose yibasiwe nubunyu1, bivuze ko hegitari zirenga miriyoni 900 zubutaka ku isi bwibasiwe nubunyu ndetse nubunyu bwa sodi2, bingana na 20% byubutaka bwahinzwe na 10% byubutaka bwuhira. ifata igice cyakarere kandi ifite umunyu mwinshi3. Ubutaka bwumunyu nikibazo gikomeye cyugarije ubuhinzi bwa Pakisitani4,5. Muri ibyo, hegitari zigera kuri miliyoni 6.3 cyangwa 14% byubutaka bwuhira ubu bwibasiwe nubunyu6.
Guhangayikishwa na Abiotic birashobora guhindukaimisemburo ikuraigisubizo, bigatuma kugabanuka kw'ibihingwa n'umusaruro wanyuma7. Iyo ibimera bihuye nihungabana ryumunyu, uburinganire hagati yubwoko bwa ogisijeni ikora (ROS) ningaruka zo kuzimya imisemburo ya antioxydeant burahungabana, bikavamo ibimera bifite ibibazo bya okiside8. Ibimera bifite imisemburo myinshi ya antioxydants (byombi kandi ntibishoboka) bifite imbaraga zo kurwanya ibyangiza okiside, nka superoxide dismutase (SOD), guaiacol peroxidase (POD), peroxidase-catalase (CAT), asorbate peroxidase (APOX), na glutathione reductase. (GR) irashobora kongera umunyu kwihanganira umunyu mukibazo cyumunyu9. Byongeye kandi, bivugwa ko phytohormone igira uruhare runini mu mikurire y’ibihingwa n’iterambere, gupfa ingirabuzimafatizo, no kubaho mu bihe by’ibidukikije10. Triacontanol ni inzoga zibanze zuzuye zigize ibishashara by’ibimera kandi bifite imikurire yo gukura kw’ibimera11,12 kimwe n’imiterere iteza imbere imikurire mike 13. Gukoresha amababi birashobora kunoza cyane imiterere ya pigment ya fotosintetike, gukusanya ibintu, gukura, no kubyara biomass mubihingwa14,15. Gukoresha amababi ya triacontanol birashobora kongera imbaraga zo kwihanganira ibimera16 muguhuza ibikorwa byimisemburo myinshi ya antioxydeant17, byongera osmoprotectant yibibabi byamababi yibihingwa 11,18,19 no kunoza uburyo bwo gufata imyunyu ngugu K + na Ca2 +, ariko ntabwo ari Na +. 14 Byongeye kandi, triacontanol itanga byinshi bigabanya isukari, proteyine zishonga, hamwe na aside amine mu bihe bigoye 20,21,22.
Imboga zikungahaye kuri phytochemicals nintungamubiri kandi ni ngombwa muburyo bwinshi bwo guhinduranya umubiri wumuntu23. Umusaruro w'imboga wugarijwe no kongera imyunyu y’ubutaka, cyane cyane mu butaka bw’ubuhinzi bwuhira, butanga 40.0% by’ibiribwa ku isi24. Ibihingwa byimboga nkigitunguru, imyumbati, ingemwe, urusenda ninyanya byumva umunyu25, kandi imyumbati nimboga zingenzi mumirire yabantu kwisi yose26. Guhangayikishwa n'umunyu bigira ingaruka zikomeye kumikurire yimbuto, nyamara, umunyu uri hejuru ya mM 25 bituma umusaruro ugabanuka kugera kuri 13% 27,28. Ingaruka mbi zumunyu kuri cucumber zituma imikurire yikimera igabanuka kandi umusaruro 5,29,30. Kubwibyo rero, intego yubu bushakashatsi kwari ugusuzuma uruhare rwa triacontanol mukugabanya imihangayiko yumunyu muri genotypes yimbuto no gusuzuma ubushobozi bwa triacontanol kugirango iteze imbere ibihingwa n’umusaruro. Aya makuru kandi ni ingenzi mugutegura ingamba zibereye kubutaka bwumunyu. Twongeyeho, twahisemo impinduka muri ion homeostasis muri genotypes ya cucumber munsi ya stress ya NaCl.
Ingaruka za triacontanol ku mikorere ya osmotic idasanzwe mu mababi ya genotypes enye za cucumber munsi yumuvuduko usanzwe numunyu.
Iyo genotypes yimbuto yabibwe mugihe cyumunyu mwinshi, umubare wimbuto zose hamwe nuburemere bwimbuto zagabanutse cyane (Ishusho 4). Uku kugabanuka kwagaragaye cyane muri Green Green na 20252 genotypes, mugihe Marketmore na Green Long bagumanye imbuto nyinshi nuburemere nyuma yikibazo cyumunyu. Gukoresha amababi ya triacontanol byagabanije ingaruka mbi ziterwa numunyu no kongera umubare wimbuto nuburemere muri genotypes zose zapimwe. Nyamara, isoko ya triacontanol ivurwa na Marketmore yatanze umusaruro mwinshi wimbuto zifite uburemere buringaniye mubihe bigoye kandi bigenzurwa ugereranije nibihingwa bitavuwe. Icyi Icyatsi na 20252 byari bifite ibishishwa byinshi cyane mu mbuto za combre kandi bititwaye neza ugereranije na Marketmore na Green Long genotypes, yari ifite ingufu nkeya cyane.
Ingaruka za triacontanol ku musaruro wa genotypes enye za cucumber mubihe bisanzwe kandi byumunyu.
Ubwinshi bwa triacontanol bwari 0.8 mg / l, ibyo bikaba byaragabanije kugabanya ingaruka zica za genotypes zakozwe mugihe cyumunyu ndetse no mubihe bidahangayikishije. Nyamara, ingaruka za triacontanol kuri Green-Long na Marketmore zagaragaye cyane. Urebye ubushobozi bwo kwihanganira umunyu wiyi genotypes hamwe ningaruka za triacontanol mukugabanya ingaruka ziterwa numunyu, birashoboka ko wakwifuza gukura iyi genotypes kubutaka bwumunyu hamwe na foliar itera triacontanol.