生词:
recherche精心设计的
come to fruition实现,达成:指计划、想法或愿望最终变成现实。
leaf blight [植保] 叶枯病
has obvious appeal具有明显的吸引力
guayule 银胶菊
resown重新播种:指在原来的地方或新的地方再次播种植物种子。
outstrip 超过
coagulate 使……凝结
gums up the mouthparts 黏住xxx的口器
growing different strains of TKS 种植不同的TKS种族
transient availability 瞬时可用率
25. 橡胶
P1:讲了一种可以代替传统橡胶树的TKS
Dandelions are useless
But: (no)TKS --> rubber could supply the traditional rubber tree
P2:讲了传统橡胶的好处(广泛应用)以及人工橡胶的局限(受油价影响)
no good substitute for real rubbers. ( resilience + strength)
Cuz:nature: more regular structure
a. car tyre <- nature
b. syn rub <-> oil
P3:传统橡胶的问题
Problems
a. disease
b. cutting down rainforest
c. take time to grow
CS: smaller plant --> obvious appeal
P4:使用Guayule的提议,以及TKS可以被利用的机会
Proposal : use guayule
But : slow growing
Y: TKS out strip HEvea
P5:CSG识别出产生酶的基因。这种酶让橡胶变稠
S: indentified TKs gene --> enzume P --> coagulate
P6:植物层面 稠化是有好处的,在人们面前却不是这样,所以通过技术手段减少酶的产生,让稠化变慢,因此更好提取
Plant: Coagulation is good :--> gums up the insects
But Human:too soon
SG : extract rubber easily
P7:用土办法培养高产根粗的品种--> 更好收获
MK: increase the yield --> high -yielding +chunky roots --> mechanically harvested
P8:两种办法相互配合产生新品种
SG+MK --> rarity new crop
return to use plant-based products