Nutrition acquisition strategies during fungal infection of plants
Nutrition acquisition strategies during fungal infection of plants
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DOI：
10.1111/j.1574-6968.2006.00504.x
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发表时间：
2007-01-01
影响因子：
2.1
通讯作者：
Fluhr, Robert
中科院分区：
文献类型：
--
作者：
Divon, Hege H.;Fluhr, Robert
在宿主-病原体相互作用中，有效的病原体营养是成功定殖和真菌适合度的先决条件。丝状真菌对外界营养环境具有很强的适应和利用能力。对于植物病原真菌，这种资产已经在宿主生理和代谢的背景下发展。了解营养物质的获取和病原体的初级代谢是非常重要的，在新的疾病控制策略的发展。在这篇综述中，我们讨论了目前的知识，植物病原真菌如何利用植物养分供应，以及如何控制这些活动。营养缺陷型突变体的产生和使用是确定植物中必需和非必需营养化合物的基础。相当多的证据表明，病原体夹带宿主代谢是一种普遍的现象，可以通过改变植物的反应路线来实现。营养感应途径的关键真菌信号成分以及它们的发育依赖性现在已经被确定，并被证明以协调的串扰方式运行，确保感染过程中适当的营养相关行为。
In host-pathogen interactions, efficient pathogen nutrition is a prerequisite for successful colonization and fungal fitness. Filamentous fungi have a remarkable capability to adapt and exploit the external nutrient environment. For phytopathogenic fungi, this asset has developed within the context of host physiology and metabolism. The understanding of nutrient acquisition and pathogen primary metabolism is of great importance in the development of novel disease control strategies. In this review, we discuss the current knowledge on how plant nutrient supplies are utilized by phytopathogenic fungi, and how these activities are controlled. The generation and use of auxotrophic mutants have been elemental to the determination of essential and nonessential nutrient compounds from the plant. Considerable evidence indicates that pathogen entrainment of host metabolism is a widespread phenomenon and can be accomplished by rerouting of the plant's responses. Crucial fungal signalling components for nutrient-sensing pathways as well as their developmental dependency have now been identified, and were shown to operate in a coordinate cross-talk fashion that ensures proper nutrition-related behaviour during the infection process.