The bacterial pathogen Xylella fastidiosa affects the leaf ionome of plant hosts during infection.
The bacterial pathogen Xylella fastidiosa affects the leaf ionome of plant hosts during infection.
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DOI：
10.1371/journal.pone.0062945
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Cobine PA
中科院分区：
文献类型：
--
作者：
De La Fuente L;Parker JK;Oliver JE;Granger S;Brannen PM;van Santen E;Cobine PA
苛养木杆菌是一种植物病原细菌，生活在宿主木质部导管内，在那里它形成生物膜，据信是负责破坏水和营养物质的通道。在这里，烟草被X. fastidiosa，并且当宿主植物从健康生理状态转变为患病生理状态时，测量全叶离子组（即矿物质和微量元素组成）的空间和时间变化。叶片的元素组成可作为指示寄主在植物发育过程中特定时间和相对位置的生理变化的指标。发现细菌感染在症状出现之前引起钙浓度的显著增加，并且在症状出现之后引起磷浓度的降低。从多个品种的葡萄，蓝莓，山核桃植物生长在不同的位置，在美国东南部的四年期间，现场收集的叶子表现出相同的改变钙和磷。这种描述性的ionomics方法的特点存在的矿物元素为基础的响应X。fastidiosa使用适合进一步操作的模型系统，以揭示矿物元素在植物-病原体相互作用过程中的作用的更多细节。这是第一份关于病原体感染过程中宿主植物离子组变化动态的报告。
Xylella fastidiosa is a plant pathogenic bacterium that lives inside the host xylem vessels, where it forms biofilm believed to be responsible for disrupting the passage of water and nutrients. Here, Nicotiana tabacum was infected with X. fastidiosa, and the spatial and temporal changes in the whole-leaf ionome (i.e. the mineral and trace element composition) were measured as the host plant transitioned from healthy to diseased physiological status. The elemental composition of leaves was used as an indicator of the physiological changes in the host at a specific time and relative position during plant development. Bacterial infection was found to cause significant increases in concentrations of calcium prior to the appearance of symptoms and decreases in concentrations of phosphorous after symptoms appeared. Field-collected leaves from multiple varieties of grape, blueberry, and pecan plants grown in different locations over a four-year period in the Southeastern US showed the same alterations in Ca and P. This descriptive ionomics approach characterizes the existence of a mineral element-based response to X. fastidiosa using a model system suitable for further manipulation to uncover additional details of the role of mineral elements during plant-pathogen interactions. This is the first report on the dynamics of changes in the ionome of the host plant throughout the process of infection by a pathogen.
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影响因子：
1.8
作者：
Francis, Marta;Lin, Hong;Civerolo, Edwin L.
通讯作者：
Civerolo, Edwin L.
影响因子：
4.5
作者：
Fritschi, Felix B.;Lin, Hong;Walker, M. Andrew
通讯作者：
Walker, M. Andrew
DOI：
10.1073/pnas.1116027109
发表时间：
2012-03-06
影响因子：
11.1
作者：
Dandekar, Abhaya M.;Gouran, Hossein;Gupta, Goutam
通讯作者：
Gupta, Goutam
DOI：
10.1073/pnas.0804175105
发表时间：
2008-08-19
影响因子：
11.1
作者：
Baxter, Ivan R.;Vitek, Olga;Salt, David E.
通讯作者：
Salt, David E.
影响因子：
4.4
作者：
Cruz, Luisa F.;Cobine, Paul A.;De La Fuente, Leonardo
通讯作者：
De La Fuente, Leonardo