Gabatarwa da ayyukan Plant auxin
Auxin shine indole-3-acetic acid, tare da tsarin kwayoyin C10H9NO2. Shine farkon hormone da aka gano don haɓaka haɓakar shuka. Kalmar Ingilishi ta fito daga kalmar Helenanci auxein (don girma).
Samfurin tsantsa na indole-3-acetic acid farin crystal ne kuma baya narkewa cikin ruwa. Sauƙi mai narkewa a cikin abubuwan kaushi na halitta kamar ethanol da ether. Yana da sauƙi oxidized kuma ya juya ya zama jajayen fure a ƙarƙashin haske, kuma aikin ilimin halittar jiki yana raguwa. Indole-3-acetic acid a cikin tsire-tsire na iya kasancewa a cikin 'yanci ko a cikin yanayin ɗaure (daure). Na ƙarshe yawanci ester ko peptide complexes ne.
Abubuwan da ke cikin indole-3-acetic acid kyauta a cikin tsire-tsire ya ragu sosai, kusan 1-100 micrograms a kowace kilogiram na sabon nauyi. Ya bambanta dangane da wuri da nau'in nama. Abun ciki a cikin kyallen takarda ko gabobin da ke girma da ƙarfi kamar wuraren girma da pollen ba su da ɗanɗano kaɗan.
Yawancin Shuka auxins kuma suna taka rawa wajen rarraba tantanin halitta da bambance bambancen, haɓakar 'ya'yan itace, samuwar tushen lokacin shan yanka da defoliation. Mafi mahimmancin auxin na halitta shine β-indole-3-acetic acid. Masu sarrafa ci gaban shuka ta wucin gadi tare da irin wannan tasirin sun haɗa da brassinolide, cytokinin, gibberellin, Naphthalene acetic acid (NAA), DA-6, da sauransu.
Matsayin Auxin shine dual: yana iya haɓaka haɓakawa da hana haɓakawa;
zai iya duka hanzari da kuma hana germination; yana iya hana furen fure da ɗigon 'ya'yan itace da furanni masu bakin ciki da 'ya'yan itace. Wannan yana da alaƙa da azancin taro na Auxin zuwa sassa daban-daban na shuka. Gabaɗaya magana, tushen tsire-tsire suna da hankali fiye da buds fiye da mai tushe. Dicotyledons sun fi kulawa fiye da monocots. Saboda haka, ana iya amfani da analogs auxin kamar 2-4D azaman maganin herbicides. Ana siffanta shi da yanayin mai gefe biyu, wanda zai iya haɓaka girma, hana haɓaka, har ma da kashe tsire-tsire.
Tasirin ƙarfafawa na Auxin yana bayyana musamman ta fuskoki biyu: haɓakawa da hanawa:
Auxin yana da tasiri mai haɓakawa:
1. Samuwar furannin mata
2. Parthenocarpy, girma na bangon ovary
3. Bambance-bambancen daurin jijiyoyi
4. Fadada ganye, samuwar tushen gefe
5. Girman tsaba da 'ya'yan itatuwa, warkar da raunuka
6. Apical rinjaye, da dai sauransu.
Auxin yana da tasirin hanawa:
1. Abscission flower.
2. Abscission 'ya'yan itace, abscission matasa ganye, girma reshe na gefe.
3. Tushen, da dai sauransu.
Tasirin auxin akan tsiron tsiro ya dogara da tarin auxin, nau'in shuka, da shuka. dangane da gabobin (tushen, mai tushe, buds, da dai sauransu). Gabaɗaya magana, ƙananan ƙira na iya haɓaka haɓaka, yayin da babban taro zai iya hana haɓaka ko ma haifar da mutuwar shuka. Tsire-tsire na Dicotyledonous sun fi kula da Auxin fiye da tsire-tsire na monocotyledonous; gabobin ciyayi sun fi kula da gabobin haihuwa; Tushen sun fi kulawa fiye da buds, kuma buds sun fi kulawa fiye da mai tushe, da dai sauransu.
Samfurin tsantsa na indole-3-acetic acid farin crystal ne kuma baya narkewa cikin ruwa. Sauƙi mai narkewa a cikin abubuwan kaushi na halitta kamar ethanol da ether. Yana da sauƙi oxidized kuma ya juya ya zama jajayen fure a ƙarƙashin haske, kuma aikin ilimin halittar jiki yana raguwa. Indole-3-acetic acid a cikin tsire-tsire na iya kasancewa a cikin 'yanci ko a cikin yanayin ɗaure (daure). Na ƙarshe yawanci ester ko peptide complexes ne.
Abubuwan da ke cikin indole-3-acetic acid kyauta a cikin tsire-tsire ya ragu sosai, kusan 1-100 micrograms a kowace kilogiram na sabon nauyi. Ya bambanta dangane da wuri da nau'in nama. Abun ciki a cikin kyallen takarda ko gabobin da ke girma da ƙarfi kamar wuraren girma da pollen ba su da ɗanɗano kaɗan.
Yawancin Shuka auxins kuma suna taka rawa wajen rarraba tantanin halitta da bambance bambancen, haɓakar 'ya'yan itace, samuwar tushen lokacin shan yanka da defoliation. Mafi mahimmancin auxin na halitta shine β-indole-3-acetic acid. Masu sarrafa ci gaban shuka ta wucin gadi tare da irin wannan tasirin sun haɗa da brassinolide, cytokinin, gibberellin, Naphthalene acetic acid (NAA), DA-6, da sauransu.
Matsayin Auxin shine dual: yana iya haɓaka haɓakawa da hana haɓakawa;
zai iya duka hanzari da kuma hana germination; yana iya hana furen fure da ɗigon 'ya'yan itace da furanni masu bakin ciki da 'ya'yan itace. Wannan yana da alaƙa da azancin taro na Auxin zuwa sassa daban-daban na shuka. Gabaɗaya magana, tushen tsire-tsire suna da hankali fiye da buds fiye da mai tushe. Dicotyledons sun fi kulawa fiye da monocots. Saboda haka, ana iya amfani da analogs auxin kamar 2-4D azaman maganin herbicides. Ana siffanta shi da yanayin mai gefe biyu, wanda zai iya haɓaka girma, hana haɓaka, har ma da kashe tsire-tsire.
Tasirin ƙarfafawa na Auxin yana bayyana musamman ta fuskoki biyu: haɓakawa da hanawa:
Auxin yana da tasiri mai haɓakawa:
1. Samuwar furannin mata
2. Parthenocarpy, girma na bangon ovary
3. Bambance-bambancen daurin jijiyoyi
4. Fadada ganye, samuwar tushen gefe
5. Girman tsaba da 'ya'yan itatuwa, warkar da raunuka
6. Apical rinjaye, da dai sauransu.
Auxin yana da tasirin hanawa:
1. Abscission flower.
2. Abscission 'ya'yan itace, abscission matasa ganye, girma reshe na gefe.
3. Tushen, da dai sauransu.
Tasirin auxin akan tsiron tsiro ya dogara da tarin auxin, nau'in shuka, da shuka. dangane da gabobin (tushen, mai tushe, buds, da dai sauransu). Gabaɗaya magana, ƙananan ƙira na iya haɓaka haɓaka, yayin da babban taro zai iya hana haɓaka ko ma haifar da mutuwar shuka. Tsire-tsire na Dicotyledonous sun fi kula da Auxin fiye da tsire-tsire na monocotyledonous; gabobin ciyayi sun fi kula da gabobin haihuwa; Tushen sun fi kulawa fiye da buds, kuma buds sun fi kulawa fiye da mai tushe, da dai sauransu.
Kwanan nan posts
Labaran fasalin
