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Differential Contribution of Transcription Factors to Arabidopsis thaliana Defense Against Spodoptera littoralis.转录因子对拟南芥防御斜纹夜蛾的差异贡献。
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在马铃薯品种肯纳贝克（Solanum tuberosum L. var. Kennebec）中过表达StZFP2可抑制烟草天蛾幼虫（THW，Manduca sexta L.）的生长。

Over-expression of StZFP2 in Solanum tuberosum L. var. Kennebec (potato) inhibits growth of Tobacco Hornworm larvae (THW, Manduca sexta L.).

作者信息

Lawrence S D, Novak N G

机构信息

a Invasive Insect Biocontrol and Behavior Lab , USDA-ARS , Beltsville , MD , USA.

出版信息

Plant Signal Behav. 2018;13(7):e1489668. doi: 10.1080/15592324.2018.1489668. Epub 2018 Jun 27.

DOI:10.1080/15592324.2018.1489668
PMID:29947577
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6128685/
Abstract

Tobacco hornworm (Manduca sexta, THW) is a voracious pest of tomato and potato. StZFP2 is a Q-type C2H2 zinc finger transcription factor (TF) that is induced upon wounding and infestation. Previous work has shown that Q-type C2H2 TFs are involved in stress responses and when over expressed, can enhance protection against drought, salinity or pathogen infection. Twelve transgenic lines (S1-S12) were tested that over-express StZFP2. Feeding S6 or S8 to THW significantly lowered larval weight (21-37%) as well as increased expression of StPIN2 in comparison to untransformed Kennebec. The increase in StPIN2, a classic marker for insect defense in potato, is consistent with the decreases in larval weight gain.

摘要

烟草天蛾（Manduca sexta，THW）是番茄和马铃薯的一种暴食性害虫。StZFP2是一种Q型C2H2锌指转录因子（TF），在受伤和受侵染时被诱导。先前的研究表明，Q型C2H2转录因子参与应激反应，过表达时可增强对干旱、盐胁迫或病原体感染的抗性。对12个过表达StZFP2的转基因株系（S1-S12）进行了测试。与未转化的Kennebec相比，用S6或S8饲喂烟草天蛾显著降低了幼虫体重（21%-37%），同时增加了StPIN2的表达。StPIN2是马铃薯中昆虫防御的经典标志物，其表达增加与幼虫体重增加的减少一致。