نتایج جستجو برای: rhizosphere uncultivated soil but

تعداد نتایج: 2211317  

2017
Jennifer Estendorfer Barbara Stempfhuber Paula Haury Gisle Vestergaard Matthias C. Rillig Jasmin Joshi Peter Schröder Michael Schloter

In this study, we investigated the impact of different land use intensities (LUI) on the root-associated microbiome of Dactylis glomerata (orchardgrass). For this purpose, eight sampling sites with different land use intensity levels but comparable soil properties were selected in the southwest of Germany. Experimental plots covered land use levels from natural grassland up to intensively manag...

2007
Lixuan Ren Shiming Su Xingming Yang Yangchun Xu Qiwei Huang Qirong Shen

Watermelon is susceptible to Fusarium wilt in successively mono-cropped soil. Pot experiments were carried out to investigate the effect of intercropping with aerobic rice on Fusarium wilt in watermelon. The tested soil was classified as a loam soil, previously planted with watermelon and collected from Hexian county, Anhui province, China. The results obtained are listed as follows: (1) 66.7% ...

2017
S. Santhoshkumar

The present study was mainly conducted to investigate the survey of arbuscular mycorrhizal biodiversity in rhizosphere soil and root colonization of medicinal plant species in Sirumalai hills, Eastern Ghats of Dindugul district, Tamilnadu. Soil samples were collected during the month of September 2014 from the surface to 30 cm depth and pH was measured. Rhizosphere soil root of 20 plant species...

Journal: :Environmental science & technology 2003
Walter J Fitz Walter W Wenzel Hao Zhang Johanna Nurmi Kamil Stipek Zuzana Fischerova Peter Schweiger Gunda Köllensperger Lena Q Ma Gerhard Stingeder

Recently discovered As-hyperaccumulator ferns hold promise for phytoremediation of As-polluted soils. We investigated changes in the rhizosphere characteristics of Pteris vittata (Chinese Brake fern) relevant for its use in phytoextraction. Plants were grown in rhizoboxes filled with soil containing 2270 mg kg(-1) As. Dissolved organic carbon (DOC) concentrations in rhizosphere soil solution we...

2018
Susanne Schreiter Doreen Babin Kornelia Smalla Rita Grosch

Biocontrol inoculants often show inconsistency in their efficacy at field scale and the reason for this remains often unclear. A high rhizosphere competence of inoculant strains is assumed to be a key factor for successful biocontrol effects as the biocontrol strain has to compete with the indigenous microbial community in the rhizosphere. It is known that many factors, among them plant species...

1998
J. Hallmann J. W. Kloepper

Changes in microbial communities associated with nematode control were studied by comparing population numbers of fungi and bacteria in the soil and in internal root tissues (endorhiza) in non-amended and chitin-amended soils. Addition of chitin to soil at 1% (w/w) eliminated plant-parasitic nematodes in a first planting of cotton cv. ‘Rowden’ and significantly reduced Meloidogyne incognita inf...

Journal: :پژوهش های خاک 0
طاهره رئیسی دانشجوی سابق دکتری گروه علوم خاک، دانشکده کشاورزی، دانشگاه شهرکرد علیرضا حسین پور استاد گروه علوم خاک، دانشکده کشاورزی، دانشگاه شهرکرد

rhizosphere has different chemical and biological properties from the bulk soil. information about phosphorus (p) availability in the rhizosphere soils treated with municipal sewage sludge (mss) is limited. therefore, the objectives of this research were to evaluate the rhizospheric effects of wheat (triticum aestivum l.) on phosphorus availability and biological properties in 10 calcareous soi...

Journal: :Applied and environmental microbiology 2010
Jinbo Xiong Liyou Wu Shuxin Tu Joy D Van Nostrand Zhili He Jizhong Zhou Gejiao Wang

To understand how microbial communities and functional genes respond to arsenic contamination in the rhizosphere of Pteris vittata, five soil samples with different arsenic contamination levels were collected from the rhizosphere of P. vittata and nonrhizosphere areas and investigated by Biolog, geochemical, and functional gene microarray (GeoChip 3.0) analyses. Biolog analysis revealed that th...

2016
Qian Zhang Junjun Wu Fan Yang Yao Lei Quanfa Zhang Xiaoli Cheng

The effect of agricultural land use change on soil microbial community composition and biomass remains a widely debated topic. Here, we investigated soil microbial community composition and biomass [e.g., bacteria (B), fungi (F), Arbuscular mycorrhizal fungi (AMF) and Actinomycete (ACT)] using phospholipid fatty acids (PLFAs) analysis, and basal microbial respiration in afforested, cropland and...

2017
Robertson-Albertyn Senga Senga Alegria Terrazas Katharin Balbirnie Manuel Blank Agnieszka Janiak Iwona Szarejko Beata Chmielewska Jagna Karcz Jenny Morris Pete E. Hedley Timothy S. George Davide Bulgarelli

The rhizosphere, the thin layer of soil surrounding and influenced by plant roots, defines a distinct and selective microbial habitat compared to unplanted soil. The microbial communities inhabiting the rhizosphere, the rhizosphere microbiota, engage in interactions with their host plants which span from parasitism to mutualism. Therefore, the rhizosphere microbiota emerges as one of the determ...

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