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【编译】植物与农林科学讨论版科研最新动态－68

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68 FROM PLANT PHYSIOLOGY
The leucine-rich repeat receptor-like kinase BAK1 and the cytochrome P450 PAD3 contribute to innate immunity to aphids in Arabidopsis
The importance of pathogen-associated molecular patterns (PAMPs)-triggered immunity (PTI) against microbial pathogens has been recently demonstrated. However, it is currently unclear if this layer of immunity mediated by surface-localized pattern recognition receptors (PRRs) also plays a role in basal resistance to insects, such as aphids. Here we show that PTI is an important component of plant innate immunity to insects. Extract of the green peach aphid (GPA) Myzus persicae triggers responses characteristic of PTI in Arabidopsis. Two separate eliciting GPA-derived fractions trigger induced-resistance to GPA that is dependent on the leucine-rich repeat receptor like kinase (LRR-RLK) BRASSINOSTEROID INSENSITIVE1-ASSOCIATED KINASE1/ SOMATIC-EMBRYOGENESIS RECEPTOR-LIKE KINASE3 (BAK1/AtSERK3), which is a key regulator of several LRR-containing PRRs. BAK1 is required for GPA elicitor-mediated induction of reactive oxygen species (ROS) and callose deposition. Arabidopsis bak1 mutant plants are also compromised in immunity to Acyrthosiphon pisum (pea aphid) for which Arabidopsis is normally a non-host. Aphid-derived elicitors induce expression of PHYTOALEXIN DEFICIENT 3 (PAD3), a key cytochrome P450 involved in the biosynthesis of camalexin, which is a major Arabidopsis phytoalexin that is toxic to GPA. PAD3 is also required for induced-resistance to GPA, independently of BAK1 and ROS production. Our results reveal that plant innate immunity to insects may involve early perception of elicitors by cell surface-localized PRRs leading to subsequent downstream immune signaling.

http://www.plantphysiol.org/content/early/2014/02/28/pp.114.235598.abstract

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2014-06-26 20:31 浏览 : 9790 回复 : 10

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• 形似而神不似之胸闷

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本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。

2014-06-28 15:12

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• 小学生研究癌症基因突变，4天学会基因专业知识

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初译：
68 FROM PLANT PHYSIOLOGY
来自植物生理学
The leucine-rich repeat receptor-like kinase BAK1 and the cytochrome P450 PAD3 contribute to innate immunity to aphids in Arabidopsis
富含亮氨酸重复受体样激酶BAK1和细胞色素P450 PAD3有助于在拟南芥的蚜虫的先天性免疫
The importance of pathogen-associated molecular patterns (PAMPs)-triggered immunity (PTI) against microbial pathogens has been recently demonstrated.
病原体相关分子模式(PAMs)对病原微生物触发免疫（PTI）的重要性最近已被证实.
However, it is currently unclear if this layer of immunity mediated by surface-localized pattern recognition receptors (PRRs) also plays a role in basal resistance to insects, such as aphids.
然而，目前还不清楚，这层由表层局部免疫介导的模式识别受体是不是同样也对昆虫的基础抗性起作用，比如蚜虫。
Here we show that PTI is an important component of plant innate immunity to insects.
这里我们表明PTI是植物对昆虫先天免疫的重要组成部分。
Extract of the green peach aphid (GPA) Myzus persicae triggers responses characteristic of PTI in Arabidopsis.
绿桃蚜的提取物触发了拟南芥的特征反应PTI。
Two separate eliciting GPA-derived fractions trigger induced-resistance to GPA that is dependent on the leucine-rich repeat receptor like kinase (LRR-RLK) BRASSINOSTEROID INSENSITIVE1-ASSOCIATED KINASE1/ SOMATIC-EMBRYOGENESIS RECEPTOR-LIKE KINASE3 (BAK1/AtSERK3), which is a key regulator of several LRR-containing PRRs.
两个独立激发触发器的GPA，GPA衍生的分数是依赖于富亮氨酸重复受体样激酶（LRR-RLK）诱导抗性油菜素内酯insensitive1-associated激酶/ somatic-embryogenesis类受体激酶3（BAK1 / atserk3），这是一个关键的包含PRRS的部分LRR的标准。

BAK1 is required for GPA elicitor-mediated induction of reactive oxygen species (ROS) and callose deposition. Arabidopsis bak1 mutant plants are also compromised in immunity to Acyrthosiphon pisum (pea aphid) for which Arabidopsis is normally a non-host.
BAK1 需要GPA诱导活性氧物种（ROS）和胼胝质沉积。拟南芥突变体植株BAK1也对豌豆蚜有免疫妥协，而通常它是一个非寄主拟南芥。

Aphid-derived elicitors induce expression of PHYTOALEXIN DEFICIENT 3 (PAD3), a key cytochrome P450 involved in the biosynthesis of camalexin, which is a major Arabidopsis phytoalexin that is toxic to GPA.
蚜虫源激发子引起植物抗毒素缺乏3的表达（PAD3），一个重要的细胞色素P450参与camalexin的生物合成，这是一种重要的拟南芥植物抗毒素，这种抗毒素对GPA有毒。

PAD3 is also required for induced-resistance to GPA, independently of BAK1 and ROS production.
PAD3对GPA的诱导抗性也是需要的，独立BAK1和ROS而产生。

Our results reveal that plant innate immunity to insects may involve early perception of elicitors by cell surface-localized PRRs leading to subsequent downstream immune signaling.
我们的研究结果表明，植物对昆虫的先天性免疫可能涉及通过细胞表面定位的PRRS导致随后下游免疫信号的诱导子早期的知觉。

2014-06-28 17:30

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小医4号编辑于 2014-06-28 17:41

• 中山一院考博

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编译：693字
68.来自植物生理学

富含亮氨酸重复受体样激酶BAK1和细胞色素P450 PAD3有助于在拟南芥的蚜虫的先天性免疫

病原体相关分子模式(PAMs)对病原微生物触发免疫（PTI）的重要性最近已被证实.然而，目前还不清楚，这层由表层局部免疫介导的模式识别受体是不是同样也对昆虫的基础抗性起作用，比如蚜虫。这里我们表明PTI是植物对昆虫先天免疫的重要组成部分。绿桃蚜的提取物触发了拟南芥的特征反应PTI。两个独立激发触发器的GPA，GPA衍生的分数是依赖于富亮氨酸重复受体样激酶（LRR-RLK）诱导抗性油菜素内酯insensitive1-associated激酶/ somatic-embryogenesis类受体激酶3（BAK1 / atserk3），这是一个关键的包含PRRS的部分LRR的标准。BAK1 需要GPA诱导活性氧物种（ROS）和胼胝质沉积。拟南芥突变体植株BAK1也对豌豆蚜有免疫妥协，而通常它是一个非寄主拟南芥。蚜虫源激发子引起植物抗毒素缺乏3的表达（PAD3），一个重要的细胞色素P450参与camalexin的生物合成，这是一种重要的拟南芥植物抗毒素，这种抗毒素多GPA有毒。PAD3对GPA的诱导抗性也是需要的，独立BAK1和ROS而产生。我们的研究结果表明，植物对昆虫的先天性免疫可能涉及通过细胞表面定位的PRRS导致随后下游免疫信号的诱导子早期的知觉。

版主donggua留言:
粗略看了下，总体上不错，先把奖励给了，随后给出建议。。。哈哈，

2014-06-28 17:34

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donggua 编辑于 2014-06-28 18:47

• 反转？哈萨克斯坦卫生部否认出现不明肺炎

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