| An Assay to Study Botrytis cinerea-infected Grapevine Leaves Primed with Pseudomonas fluorescens
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Author:
Date:
2016-10-05
[Abstract] Grapevine (Vitis vinifera L.) is susceptible to an array of diseases among them the grey mold caused by the necrotrophic fungus Botrytis cinerea that decreases grape productivity and quality. To ensure a satisfactory yield and harvest quality numerous chemical fungicides are required, but they have serious drawbacks. One alternative is the use of beneficial bacteria to improve plant health. Pseudomonas fluorescens has been shown to trigger a plant-mediated resistance response in aboveground plant tissues against fungal, oomycete, bacterial, and viral pathogens. ...
[摘要] 葡萄（葡萄（Vitis vinifera）L.）易受一系列疾病的影响，其中包括由坏死性真菌葡萄孢菌引起的灰霉病，其降低葡萄生产力和质量。为了确保令人满意的产量和收获质量，需要许多化学杀真菌剂，但它们具有严重的缺点。一个替代方案是使用有益细菌来改善植物健康。已经显示荧光假单胞菌在地上植物组织中触发植物介导的对真菌，卵菌，细菌和病毒病原体的抗性反应。触发的植物抗性通过启动状态利用植物免疫系统的机制，其提供植物在病原体感染后快速和强烈地激活防御反应的增强能力，导致较低的适合度成本。有益细菌的引发应答包括防御相关基因的诱导表达，细胞壁增强和病原体感染后次生代谢产物的产生。在该方案中，我们描述了根据Verhagen评价有益细菌荧光假单胞菌PTA-CT2对葡萄植物的引发状态及其对灰葡萄孢的抗性水平的实验设计等。 （2011）和Gruau等人。 （2015）。
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| Quantitative Evaluation of Competitive Nodulation among Different Sinorhizobium Strains
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Author:
Date:
2015-08-05
[Abstract] Legumes play a vital role in global food supply because they are uniquely capable of fixing atmospheric nitrogen (N) through symbioses with root and stem nodule bacteria, collectively called the rhizobia. These commonly include bacteria in the genera Rhizobium, Mesorhizobium, Sinorhizobium (Ensifer), and Bradyrhizobium, although other genera of bacteria have now been shown to form root nodule symbioses with several legume species (Weir, 2012). The symbiotic interaction is important for agricultural productivity, especially in less developed countries where ...
[摘要] 豆类在全球食物供应中起着至关重要的作用，因为它们独特地能够通过与根和茎结节细菌的共生固定大气氮（N），统称为根瘤菌。这些通常包括根瘤菌属，中生根瘤菌属，中华根瘤菌属（ Ensifer ）和 Bradyrhizobium 属中的细菌，的细菌现已显示与几种豆科物种形成根瘤共生（Weir，2012）。共生相互作用对于农业生产力是重要的，特别是在其中氮肥昂贵的欠发达国家中。然而，结瘤能力和竞争力在农业生产中具有实际重要性，因为高效根瘤菌的接种通常不成功，这主要是由于土壤中存在无效的土着根瘤菌的竞争性群体（Toro，1996; Triplett和Sadowsky， 。该协议允许我们定量评价中华根瘤菌菌株的相对结瘤竞争性。
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