Limitation of nocturnal ATP import into chloroplasts seems to affect hormonal crosstalk, prime defense, and enhance disease resistance in Arabidopsis thaliana.
Limitation of nocturnal ATP import into chloroplasts seems to affect hormonal crosstalk, prime defense, and enhance disease resistance in Arabidopsis thaliana.
复制标题
夜间 ATP 输入叶绿体的限制似乎会影响拟南芥的激素串扰、主要防御和增强抗病性
DOI：
10.1094/mpmi-02-10-0045
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Conrath U
中科院分区：
文献类型：
--
作者：
Schmitz G;Reinhold T;Gobel C;Feussner I;Neuhaus HE;Conrath U
在短日照、弱光条件下生长时，编码两个叶绿体ATP/ADP逆向转运蛋白基因缺陷的拟南芥Col-0突变体(称为ntt1-2缺失突变体)表现出一系列的生理变化。这些包括坏死性病变的形成和过氧化氢在叶片中的积累。在这里，我们发现，在短日照条件下，这1-2个突变体的叶片对花生灰霉病菌、灰霉病菌和番茄假单胞菌DC3000表现出更强的抗性。对这些病原菌的抗性与植物激素水杨酸以及最终茉莉酸的结构性升高有关，以及在病原菌攻击后依赖于这些激素的各种防御基因的结构性或启动激活。此外，水杨酸和茉莉酸信号通路之间的拮抗串扰似乎受到ntt1-2的影响。由于ntt1-2toH的抗性增强。当突变体在长日照条件下生长时没有观察到阿拉伯突变体，我们的发现表明夜间ATP输入到叶绿体对Keepa是至关重要的。由病原菌抗性失控激活所致。
When grown under short-day conditions at low light, leaves of anArabidopsis thaliana(accession Col-0) mutant with defects in the two genes encoding plastid ATP/ADP antiporters (so-calledntt1-2null mutants) display a variety of physiological changes. These include the formation of necrotic lesions and the accumulation of hydrogen peroxide in the leaves. Here, we show that, under short-day conditions, leaves of thentt1-2mutant display enhanced resistance toHyaloperonospora arabidopsidis, Botrytis cinerea, andPseudomonas syringaepv.tomatoDC3000. Resistance to these pathogens was associated with constitutively elevated levels of the plant hormone salicylic acid and, eventually, jasmonic acid, and constitutive or primed activation after pathogen attack of various defense genes that are dependent on these hormones. In addition, the antagonistic crosstalk between the salicylic acid and jasmonic acid signaling pathways seems to be affected inntt1-2. Because the enhanced resistance ofntt1-2toH. arabidopsidiswas not seen when the mutant was grown under long-day conditions, our findings argue that nocturnal ATP import into chloroplasts is crucial to keepA. thalianafrom runaway activation of pathogen resistance.
登录
查看更多内容
DOI：
10.1073/pnas.95.13.7819
发表时间：
1998-06-23
影响因子：
11.1
作者：
Yu, IC;Parker, J;Bent, AF
通讯作者：
Bent, AF
影响因子：
7.2
作者：
Reinhold, Thomas;Alawady, Ali;Neuhaus, H. Ekkehard
通讯作者：
Neuhaus, H. Ekkehard
来自寄生霜霉/拟南芥病理系统的种族特异性诱导子☆
影响因子：
2.7
作者：
J. Rethage;P. Ward;A. Slusarenko
通讯作者：
A. Slusarenko
影响因子：
7.2
作者：
Neuhaus, HE;Thom, E;Kampfenkel, K
通讯作者：
Kampfenkel, K
质体 ATP/ADP 转运蛋白的抑制可增强马铃薯块茎的防御反应并增强其对胡萝卜软腐欧文氏菌的抵抗力
影响因子：
7.4
作者：
C. Linke;U. Conrath;W. Jeblick;T. Betsche;A. Mahn;K. Düring;H. Neuhaus
通讯作者：
H. Neuhaus