農業及栽種界裡,經常都會用上名為嫁接(Grafting)的手段,意思即係將植物的一部份轉移到另一植物之上,繼續延續植物的生命。588Please respect copyright.PENANApprD06nas7
588Please respect copyright.PENANABWzIcnxwSq
嫁接適宜的話,將會帶來非常多的好處。假設植物A並不適宜在某土壤生長的話,只要將植物A嫁接到適合在該土壤生長的植物B身上,就能解決問題。588Please respect copyright.PENANAcPnMA371yu
588Please respect copyright.PENANA5a5TsSsRbS
當然,講就當然易,做起上來都講求一定的技巧同有著相當的限制。588Please respect copyright.PENANAP2rul93JEJ
588Please respect copyright.PENANAL7YsvOqGgi
嫁接大致上分為接穗(Scion)及砧木(Root)兩大部份,簡單來說就係位於上方及下方的植物。(圖1)588Please respect copyright.PENANADKqTaWUHlA
588Please respect copyright.PENANAzKujhhyESD
588Please respect copyright.PENANAZLQlYWGt3g
588Please respect copyright.PENANA5GGMm0TZQK
大部份的情況下,只有同科的植物才可以進行嫁接工序。588Please respect copyright.PENANAQpljXwmHkG
而正因如此,有一些「喪心病狂」的人會將同屬茄科的茄子及薯仔嫁接在一起栽種,更起上花名「Egg and Chips」,取其茄子Eggplant的Egg,及Potato將成為的Chips作稱呼。588Please respect copyright.PENANAlDIEsFwMvk
588Please respect copyright.PENANA9pTqJplz5J
亦有一些人會將蕃茄及薯仔嫁接在一起,相信是為了方便自己煲蕃茄薯仔湯之用,又或者是製作茄汁與薯條一起共賞薯條;有興趣的話可自行Google TomTato。588Please respect copyright.PENANAAx4G7uLMP2
588Please respect copyright.PENANAWox1t27HFC
直至最近,有科學家發現了一種方法可以令唔同科的植物亦能嫁接在一起,並發表學術文章到《科學》期刊上。588Please respect copyright.PENANAaHo1cphRPS
588Please respect copyright.PENANADCDLOkbPc9
Source: https://science.sciencemag.org/content/369/6504/698588Please respect copyright.PENANARbMd5Hf8Go
588Please respect copyright.PENANACFJkh3yiMp
他們所用的方法,就是利用菸草的莖部作為兩棵植物的中間人,圖2所顯示的就是他們的傑作,將經常被視作為野花的阿拉伯芥及蕃茄苗透過菸草莖部串在一起,最後成功令蕃茄修成正茄。588Please respect copyright.PENANAv8dQ8ATAFf
588Please respect copyright.PENANA49grkDyyfQ
588Please respect copyright.PENANAa8Ml1KX6ID
文章裡亦嘗試過各種不同的種合,蕃茄拼菊花,菊花拼大豆等等,一切亦能透過菸草莖部成功嫁接。588Please respect copyright.PENANAZdvkExTkxX
588Please respect copyright.PENANApTqLXMEWpk
他們相信箇中的原因是菸草莖部其中一隻名為的β-1,4-glucanases酵素促進植物細胞速的嫁接傷口快速融合,確保水份及營養可以貫徹整棵植物,導致嫁接成功率大增(圖3)。588Please respect copyright.PENANARRZX7UdlUg
588Please respect copyright.PENANAYK0qZQoZXT
588Please respect copyright.PENANAK4BZLkeRsz
這是目前的推測,還有待進一步的認證。588Please respect copyright.PENANAAjObpeWicB
588Please respect copyright.PENANAOcJJJ7oHB0
但無論如何,他們的發現顯然會為業界帶來新衝突,不但可以令更多植物容易生長在不同環境裡頭,亦同時能增加生物多樣性,甚至更能將基因改造過的植物與不同植物融合,加大產量或防止害蟲侵蝕植物等等。588Please respect copyright.PENANA5k3ds8uWX9
588Please respect copyright.PENANATOql0AeXkK
未來的植物,大有可能棵棵也有薯仔埋在根部裡頭。588Please respect copyright.PENANAEN9tNQ9Jn3
588Please respect copyright.PENANAMwBLogf2SK
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科普專欄–薯不揀單
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #15
<<深入淺出–植物嫁接領域(Grafting)的突破>>
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