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Potassium Phosphate Monobasic

KH2PO4

Company: VWR
Catalog#: BDH0268
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Isolation of Rhizosphere Bacterial Communities from Soil
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Date:
2015-08-20
[Abstract]  Rhizosphere bacterial communities have become a major focal point of research in recent years, especially regarding how they affect plants and vice versa (Philippot et al., 2013). Changes in microbial density and diversity within the rhizosphere occur in a spatial temporal manner. The soil zone closest to the plant roots has the most density and diversity of microbes (Clark, 1940). The lack of methods to consistently isolate rhizosphere samples in a spatially defined manner is a major bottleneck in rhizosphere microbiology. We hypothesized that microbes with increasing affinities to and distance from the plant root can be isolated using increasing strengths of physical disruption. Sonication is an excellent choice due to the ability to gently remove rhizosphere soil and ... [摘要]  根际细菌群落已成为近年来研究的主要焦点,特别是关于它们如何影响植物或反之亦然(Philippot等人,2013)。根际微生物密度和多样性的变化以空间时间方式发生。最接近植物根部的土壤区具有最密集和多样性的微生物(Clark,1940)。缺乏以空间定义的方式一致地分离根际样品的方法是根际微生物学的主要瓶颈。我们假设可以使用增加的物理破坏的强度来分离具有对植物根部的亲和力和距植物根部的距离增加的微生物。超声是一个很好的选择,因为能够轻轻地去除根际土壤和细菌生物膜而不损害植物根(Doi T等人,2007; Bulgarelli等人,2012年; Lundberg等人,2012)。此外,简单地增加超声处理的时间可以增加物理力的量。我们使用这样的方法来一致地分离对大豆根具有不同亲和力的微生物群落(White等人,2014)。本文介绍了使用连续超声处理来隔离远端,中间和近端土壤与大豆根部的根际。

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