Ngaba i-Gibberellic Acid GA3 iyingozi kumzimba womntu?
I-Gibberellic Acid GA3 yihomoni yesityalo.
Xa kuziwa kumahomoni, abantu abaninzi bacinga ukuba kuya kuba yingozi kumzimba womntu. Enyanisweni, i-Gibberellic Acid GA3, njenge-hormone yesityalo, ayinabungozi kumzimba womntu.
Ngenxa yokuba akukho receptor ebophezelayo emzimbeni womntu, iya kuxutywa kuphela, kwaye i-hormone yesityalo ngokwayo iveliswa sisityalo ngokwaso. Uxinzelelo olusezantsi lwe-Gibberellic Acid GA3 lukhuthaza ukukhula, ngelixa ugxininiso oluphezulu luthintela ukukhula. Izitho ezahlukeneyo zezityalo zineemfuno ezahlukeneyo zoxinzelelo oluphezulu lwe-auxin.
Olona gxininiso lwengcambu lumalunga ne-10^(-10) mol/L, ugxininiso olulolona luphezulu lwe-buds lumalunga ne-10^(-8) mol/L, kwaye ukuxinana kweziqu kumalunga ne-10^(- 4) mol/L. Le dosi ayiyi kuqokelela kwi-dose eya kuvelisa umphumo emzimbeni womntu, ngoko akukho mfuneko yokukhathazeka konke.
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Xa kuziwa kumahomoni, abantu abaninzi bacinga ukuba kuya kuba yingozi kumzimba womntu. Enyanisweni, i-Gibberellic Acid GA3, njenge-hormone yesityalo, ayinabungozi kumzimba womntu.
Ngenxa yokuba akukho receptor ebophezelayo emzimbeni womntu, iya kuxutywa kuphela, kwaye i-hormone yesityalo ngokwayo iveliswa sisityalo ngokwaso. Uxinzelelo olusezantsi lwe-Gibberellic Acid GA3 lukhuthaza ukukhula, ngelixa ugxininiso oluphezulu luthintela ukukhula. Izitho ezahlukeneyo zezityalo zineemfuno ezahlukeneyo zoxinzelelo oluphezulu lwe-auxin.
Olona gxininiso lwengcambu lumalunga ne-10^(-10) mol/L, ugxininiso olulolona luphezulu lwe-buds lumalunga ne-10^(-8) mol/L, kwaye ukuxinana kweziqu kumalunga ne-10^(- 4) mol/L. Le dosi ayiyi kuqokelela kwi-dose eya kuvelisa umphumo emzimbeni womntu, ngoko akukho mfuneko yokukhathazeka konke.
