科普專欄–薯不揀單 - 深入淺出–白色蘑菇上的啡點

白蘑菇上的啡點，大多是由名為P. tolaasii 的細菌引起，學名為Brown Blotch Disease(Ref1)。1327Please respect copyright.ＰＥＮＡＮＡgA28encj3S
1327Please respect copyright.ＰＥＮＡＮＡHZPKwsO7Me
1327Please respect copyright.ＰＥＮＡＮＡwcJRikGMgz
雖然P. tolaasii 細菌不會使人染病，但普遍大多數消費者也不會購買帶有啡點的蘑菇，只會買下白色乾淨且有彈性的白蘑菇。1327Please respect copyright.ＰＥＮＡＮＡuEOtXwGZOB
1327Please respect copyright.ＰＥＮＡＮＡpyo6CCLgYC
基於Brown Blotch Disease的傳染性非常之高的關係，當有一顆蘑菇受到感染，其後波及的面積將會非常巨大，讓農夫們蒙受損失。1327Please respect copyright.ＰＥＮＡＮＡ98M9ttjJWL
1327Please respect copyright.ＰＥＮＡＮＡi3wYtAlO70
而這種細菌同時亦會波及士多啤梨椰菜花等農作物，故此絕對不能忽視。1327Please respect copyright.ＰＥＮＡＮＡ6JGgjrGYKy
1327Please respect copyright.ＰＥＮＡＮＡfWPnuoITf2
1327Please respect copyright.ＰＥＮＡＮＡhC4BLAac54
1327Please respect copyright.ＰＥＮＡＮＡfreQnXE2fi
（圖2）已知的是，P. tolaasii 細菌會產生名為tolaasins的物質，在白蘑菇表面上產生微孔，導致啡黑色的圓點出現。1327Please respect copyright.ＰＥＮＡＮＡyOWTLXMrr8
1327Please respect copyright.ＰＥＮＡＮＡtIQgN0nHix
（圖3）近日有科學家發表文章（Ref2)，證實另一種類的細菌M. tolaasinivorans /M. lacteus能將環狀結構的tolaasins轉變成直線結構。1327Please respect copyright.ＰＥＮＡＮＡA4IRe00ay0
1327Please respect copyright.ＰＥＮＡＮＡpMsiVU5e75
1327Please respect copyright.ＰＥＮＡＮＡWEaU7rWY7y
而最為重要的是，直線結構的tolaasins再也沒有能力在白蘑菇上產生啡點。1327Please respect copyright.ＰＥＮＡＮＡBIOKtqd5m4
1327Please respect copyright.ＰＥＮＡＮＡjbIgG6gHR6
（圖4）他們亦發現，M.tolaasinivorans /M. Lacteus 同時亦能破壞P. tolaasii裡頭一隻名為pseudodesmin物質的部份結構，得以減慢P. tolaasii的生長速度。1327Please respect copyright.ＰＥＮＡＮＡ1Ofin4jlie
1327Please respect copyright.ＰＥＮＡＮＡRDfkIgLG9H
1327Please respect copyright.ＰＥＮＡＮＡgC69sWSXH6
1327Please respect copyright.ＰＥＮＡＮＡdAzzuGztf2
此項發現除了揭示可以利用細菌擊倒細菌此等手法保護農作物的手法外，同時亦指引科學家們可以研究出針對破壞該兩種物質的化學物，作為另一種保護白蘑菇等農作物外觀的手段。1327Please respect copyright.ＰＥＮＡＮＡ453EpDJTnV
1327Please respect copyright.ＰＥＮＡＮＡWGWEU9bLF0
「同類」擊倒同類，滲透繼而分化的破壞力，絕對是不容忽視的。1327Please respect copyright.ＰＥＮＡＮＡgS0qi6ZhnO
1327Please respect copyright.ＰＥＮＡＮＡGDJO2DdA5Z
如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。1327Please respect copyright.ＰＥＮＡＮＡyEdX2hmXwV
1327Please respect copyright.ＰＥＮＡＮＡXy3TDVXtHO
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc1327Please respect copyright.ＰＥＮＡＮＡLB67UgLxFD
1327Please respect copyright.ＰＥＮＡＮＡHMtWHmGisV
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。1327Please respect copyright.ＰＥＮＡＮＡEfUQ6MuCkI
1327Please respect copyright.ＰＥＮＡＮＡRpklZJprex
Link:1327Please respect copyright.ＰＥＮＡＮＡldW9H6xYNt
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1327Please respect copyright.ＰＥＮＡＮＡmDg31iMYrv
1327Please respect copyright.ＰＥＮＡＮＡsdSspg8aif
1327Please respect copyright.ＰＥＮＡＮＡLbBO1Gh0vF
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。1327Please respect copyright.ＰＥＮＡＮＡF9xfaRPESU
1327Please respect copyright.ＰＥＮＡＮＡfqiT2v7kfK
1327Please respect copyright.ＰＥＮＡＮＡKOCnk9wFte
Ref1:https://academic.oup.com/femsre/article/23/5/591/5332401327Please respect copyright.ＰＥＮＡＮＡiKYHe1HiBK
Ref2:https://pubmed.ncbi.nlm.nih.gov/32868430/1327Please respect copyright.ＰＥＮＡＮＡDkJAggS7sK

ns18.218.213.153da2

介面主題:

字體大小:

行距:

段距:

自動加載下一章