Ngā Tauira Pātai mō te Kōrero mō te Tipu me te Whanaketanga o ngā Tipu
He kaupapa matua te tipu me te whanaketanga o ngā tipu i roto i te koiora, e tūhura ana i te whanaketanga o ngā tipu mai i ngā purapura ki ngā rauropi pakeke. Kei roto i tēnei tukanga he raupapa o ngā huringa ā-tinana me te matū koiora e āhei ai ngā tipu ki te urutau ki tō rātou taiao me te whakaputa uri. I roto i tēnei tuhinga, ka tūhuratia e mātou ētahi tauira raruraru e pā ana ki te tipu me te whanaketanga o ngā tipu, ā, ka matapakihia hoki.
Te Whakamāramatanga o te Tipu me te Whakawhanaketanga
I mua i te ruku ki ngā tauira rapanga, he mea nui kia mārama ki ngā ariā taketake o te tipu me te whanaketanga o ngā tipu. Ko te tipu o ngā tipu e pā ana ki te pikinga kore e taea te huri i te rahi me te taumaha nā te wehenga me te whakanui o ngā pūtau. Ko te whanaketanga ia, e kapi ana i ngā huringa kounga e pā ana ki te tipu puta noa i tōna oranga, pērā i te rerekētanga pūtau, te whakawhanaungatanga, me te koroheketanga.
Ngā Take e Pā Ana ki te Tipu me te Whakawhanaketanga
Ka pāngia te tipu me te whanaketanga o ngā tipu e ngā āhuatanga o roto, o waho hoki, tae atu ki ngā homoni tipu, te mārama, te pāmahana, te wai, me ngā matūkai kohuke. He mahi nui tā ngā phytohormones pērā i ngā auxins, ngā gibberellins, me ngā cytokinins ki te whakahaere i ngā āhuatanga rerekē o te tipu, ko ngā āhuatanga taiao pērā i te mārama me te wai he mahi anō tā rātou ki te whakatau i ngā tere me ngā tauira tipu.
Ngā Pātai Tauira me te Kōrero
Anei ētahi tauira o ngā pātai e ara ake ana i te ako mō te tipu me te whanaketanga o ngā tipu, ā, muri iho ka matapakihia.
Pātai 1:
Whakamāramahia te mahi a te auxin i roto i te tipu me te whanaketanga o ngā tipu.
Kōrero:
He phytohormone te Auxin e whai wāhi nui ana ki te tipu me te whanaketanga o ngā tipu. I kitea tuatahitia tēnei homoni i roto i ngā pito o ngā wana tipu e Charles Darwin mā roto i āna whakamātautau ki te aukati i te māramatanga. Ko te mahi a te Auxin he whakaoho i te roa o te pūtau, inā koa i roto i te coleoptile me te kakau.
Ko ētahi o ngā mahi matua a te auxin ko:
1. Te Toronga o te Pūtau: Ka whakaoho te Auxin i te toronga o te pūtau i ngā wāhanga o raro o ngā wana taitamariki, ngā kakau, me ngā coleoptile. Ka whakanui ake tēnei homoni i te kirihou o te pakitara pūtau, ka taea ai e ngā pūtau te tipu roa ake.
2. Te Whakaahua-a-Kiwa me te Huri-ā-Kiwa: He mahi tā te Auxin i roto i te whakaahua-a-Kiwa (te tipu ki te mārama) me te huri-ā-Kiwa (te tipu i raro i te mana o te kaha ā-papa). Hei tauira, ka kohia te auxin ki te taha o te kakau kāore e pāngia e te mārama, ka tere ake te toro o taua taha, ka piko te kakau ki te mārama.
3. Te Mana o te Pito o te Pua: He nui te kukū o te auxin i puta mai i te pito o te wana ki reira, ā, ka ārai i te tipu o ngā wana taha mā te tikanga e mōhiotia ana ko te mana o te pito o te wana. Mā tēnei ka āwhina i te pupuri i te āhua me te tauira tipu o te tipu.
4. Te Hanganga o te Pūtake Tauhou: He mahi nui anō tā te Auxin i roto i te hanganga o te pūtake tauhou. Ka whakaoho tēnei homoni i ngā pūtau i roto i te kiko kua wehea tata ki te patunga, ki te pūtake rānei o te kakau tapahi kia hanga pakiaka.
Pātai 2:
He aha te pānga o te mārama ki te tukanga o te whakaahua me te tipu o ngā tipu?
Kōrero:
He mea nui te māramatanga hei āwhina i te tipu me te whanaketanga o ngā tipu mā te tukanga whakaahua-whakawhitiwhiti. I roto i te whakaahua-whakawhitiwhiti, ka hurihia te pūngao mārama hei pūngao matū i roto i te āhua o te hukahuka, e whakamahia ana hei pūtake pūngao me te rauemi hanga mō te tipu o ngā tipu.
Anei ētahi pānga o te mārama ki te tipu o ngā tipu:
1. Te Kaha o te Mārama: Ka pā te kaha o te mārama ki te tere o te whakaahua-mai. Ka nui ake te kaha o te mārama, ka nui ake te pūngao e wātea ana mō te whakaahua-mai, tae noa ki te taumata mākū ka noho hei mea whakawhāiti i ētahi atu āhuatanga. He mea nui te kaha o te mārama e tika ana mō te tipu pai rawa atu.
2. Te Kounga o te Mārama: He pai ake te whai hua o ētahi tae, ngā roangaru rānei o te mārama ki te whakapūtanga o te hihi. Hei tauira, he pai ake te whai hua o te mārama kikorangi me te mārama whero i te mārama kakariki. Ko ngā phytochrome he tae e kitea ai te mārama me te whakahaere i ngā tauhohenga tipu pēnei i te pua.
3. Te Whakapūngao-ataata: Ka pā te mārama ki te wā pua o ētahi tipu mā te tikanga e kīia nei ko te whakapūngao-ataata. Ka aro atu ngā tipu ki te roa o te rā, ki te nui rānei o te māramatanga e pā ana ki te huringa tipu. Hei tauira, ka pua noa ngā tipu poto-rā ina roa ake te roa o te pō i tētahi roa o te rā.
4. Te Hurihanga o ngā Tipu i te Mārama (Te Whakaitiotanga me te Teitiotanga): Ka taea e ngā āhuatanga mārama iti te whakaitiotanga, te roa rawa rānei o te tipu, e tohuhia ana e ngā kakau roa, ngā rau mā, me ngā peka roa. Ina whakahokia mai te mārama, ka pāngia ngā tipu e te teitiotanga, te wāhi e tika ai te tipu kia rite, ka puta ai te hanganga o te chlorophyll.
Pātai 3:
He aha te tikanga o te mahi a te gibberellin i roto i te tipu o ngā tipu?
Kōrero:
Ko ngā gibberellins he rōpū homoni tipu e whai wāhi ana ki te whakaoho i te tipu. Neke atu i te 100 ngā momo gibberellins e kitea ana i roto i ngā momo tipu. Ko ngā mahi matua a ngā gibberellins i roto i te tipu me te whanaketanga ko:
1. Te Toronga o te Kakau: Ko tētahi o ngā mahi rongonui a ngā gibberellin ko te whakaoho i te toronga o te kakau. Ka whakanui ake ngā gibberellin i te wehenga me te toronga o ngā pūtau, inā koa i roto i ngā tipu kua pōturi, mā te whakaroa i ngā pūtau take me te whakanui ake i te tawhiti i waenga i ngā internodes.
2. Te Whakatipu Kākano: Ka pakaru te moe o te kākano i te gibberellin, ka whakaoho i te whakatipu mā te whakanui ake i te mahi a te whākōkī amylase e huri ai te māngaro hei huka i roto i te endosperm, ka whakarato i te pūngao mō te kukune.
3. Te Hanga me te Whakawhanaketanga o ngā Hua: He maha ngā wā ka whakamahia tēnei homoni i roto i te ahuwhenua hei whakatairanga i te whakanui i ngā hua me te whakanui ake i ngā hua o te hua. Ka taea hoki e ngā gibberellins te whakatauira i te hanganga hua me te kore e whakapūpū, e mōhiotia ana ko te parthenocarpy.
4. Te Pua: I roto i ētahi tipu, ka pāngia te wā me te hanganga o ngā pua e ngā gibberellin. Hei tauira, ka whakaohohia e ngā gibberellin te pua o ngā tipu roa te rā, e hiahia ana kia poto ngā pō hei pua.
Te Katinga
He mea nui te mārama ki te tipu me te whanaketanga o ngā tipu mō ngā momo mahi maha, tae atu ki te ahuwhenua, te māra, me te tiaki taiao. Kua hangaia ēnei pātai hei āwhina i ngā ākonga ki te mārama ki ngā tikanga matatini o te homoni me te taiao e whakahaere ana i te tipu o ngā tipu. Mā te mārama ki ēnei ariā, ka taea e tātou te whakamahi pai ake i te pūmanawa o ngā tipu i roto i ngā pūnaha rauropi me te whakatairanga i ngā mahi whakatipu pai ake, pumau ake hoki.
