Jens‐Konrad Preem

ORCID: 0000-0003-0314-1282
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Microbial Community Ecology and Physiology
  • Soil Carbon and Nitrogen Dynamics
  • Peatlands and Wetlands Ecology
  • Oral microbiology and periodontitis research
  • Wastewater Treatment and Nitrogen Removal
  • Urinary Tract Infections Management
  • Urinary Bladder and Prostate Research
  • Mycorrhizal Fungi and Plant Interactions
  • Dental Radiography and Imaging
  • Endodontics and Root Canal Treatments
  • Salivary Gland Disorders and Functions
  • Chromium effects and bioremediation
  • Pelvic floor disorders treatments
  • Heavy metals in environment
  • Plant and fungal interactions
  • Forest Ecology and Biodiversity Studies
  • Adolescent Sexual and Reproductive Health
  • Constructed Wetlands for Wastewater Treatment
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Ecology and Vegetation Dynamics Studies
  • Reproductive tract infections research
  • Dental Health and Care Utilization
  • Agriculture, Soil, Plant Science
  • Gut microbiota and health

University of Tartu
2012-2019

Competence Centre on Health Technologies (Estonia)
2014-2017

The tree root-mycorhizosphere plays a key role in resource uptake, but also the adaptation of forests to changing environments. adaptive foraging mechanisms ectomycorrhizal (EcM) and fine roots Picea abies, Pinus sylvestris Betula pendula were evaluated along gradient from temperate subarctic boreal forest (38 sites between latitudes 48°N 69°N) Europe. Variables describing uptake structures processes (absorptive root biomass morphology, nitrogen (N) concentration absorptive roots,...

10.1111/nph.14643 article EN New Phytologist 2017-06-06

To profile the seminal microbiome applying next generation sequencing.Semen samples of 67 men were involved in study (21 with and 46 without prostatitis). Seminal microbiomes profiled method that uses combinatorial sequence tags attached to polymerase chain reaction primers amplify ribosomal ribonucleic acid V6 region. Amplified products sequenced using an Illumina paired-end protocol on HiSeq2000 platform.The most abundant phylum semen was Firmicutes, comprising nearly half sequences found...

10.1111/iju.13286 article EN International Journal of Urology 2017-02-01

Abstract The pollution of agricultural soils by the heavy metals affects productivity land and has an impact on quality surrounding ecosystems. This study investigated bacterial community structure in metal contaminated sites along a smelter distantly located paddy field to elucidate factors that are related alterations communities under conditions pollution. Among sites, soil did not show any significant differences their richness diversity. at three were distinct from one another each...

10.1002/ece3.4170 article EN cc-by Ecology and Evolution 2018-05-20

Soil microbes play a fundamental role in forest ecosystems and respond rapidly to changes the environment. Simultaneously with temperature increase climate change scenarios also predict an intensified hydrological cycle for Baltic Sea runoff region. The aim of this study was assess effect elevated air humidity on top soil microbial community structure silver birch (Betula pendula Roth.) stand by using free manipulation facility (FAHM). bacterial structures bulk rhizosphere were analysed...

10.3389/fmicb.2017.00557 article EN cc-by Frontiers in Microbiology 2017-04-03

Oral microbiome has significant impact on both oral and general health. Polyols have been promoted as sugar substitutes in prevention of diseases. We aimed to reveal the effect candies containing erythritol, xylitol or control (sorbitol) salivary microbiome.Ninety children (11.3 ± 0.6 years) consumed during 3 years. Microbial communities were profiled using Illumina HiSeq 2000 sequencing real-time PCR.The dominant phyla saliva Firmicutes (39.1%), Proteobacteria (26.1%), Bacteroidetes...

10.1186/s12903-019-0747-z article EN cc-by BMC Oral Health 2019-04-18

Abstract The residues from human environments often contain antibiotics and antibiotic resistance genes ( ARG s) that can contaminate natural environments; the clearest consequence of is selection antibiotic‐resistant bacteria. B altic S ea second largest isolated brackish water reservoir on Earth, serving as a drainage area for people in 14 countries, which differ one another use sewage treatment policies. aim this study was to characterize bacterioplankton structure quantify s tetA , tetB...

10.1002/bab.1144 article EN Biotechnology and Applied Biochemistry 2013-08-13

Dynamics of bacterial community abundance and structure a newly established horizontal subsurface flow (HSSF) pilot-scale wetland were studied using high-throughput sequencing quantitative polymerase chain reaction (PCR) methods. Bacterial increased rapidly within one month stabilised thereafter in three replicate HSSF constructed (CW) mesocosms. The most dominant phylum was Proteobacteria, followed by Bacteroidetes media biofilms Firmicutes influent wastewater. CW diversity over time...

10.3390/w8100457 article EN Water 2016-10-17
Po‐Yen Lin Shih-Hao Huang Hong-Ji Chang Lin-Yang Chi Alan Law and 95 more Donald R. Nixdorf Ira Rabinowitz Gregory J. Reams James Smith Anibal V. Torres Douglas C. Harris Johannes Mente Sarah Hufnagel Meltem Leo Annemarie Michel Holger Gehrig Dimos Panagidis Daniel Saure Thorsten Pfefferle Ezilmara Leonor Rolim de Sousa Frederico C. Martinho Fábio Renato Manzolli Leite Gustavo G. Nascimento Brenda Paula Figueiredo de Almeida Gomes Falk Schwendicke Michael Stolpe Guobin Yang Xiaoyan Li Guohua Yuan P. L. Liu Mingwen Fan Veiko Vengerfeldt Katerina Špilka Mare Saag Jens‐Konrad Preem Kristjan Oopkaup Jaak Truu Reet M€ Qimeng Li Lijia Rao Deqian Zhang Qiong Xu Jin-Kyu Yi Shebli Mehrazarin Ju-Eun Oh Anu Bhalla Jenessa Oo Wei Chen Min Woo Lee Reuben Kim Kihyuk Shin No-Hee Park Mo Kang Chi-Jr Hung Hsin‐I Hsu Chi‐Chang Lin Tsui-Hsien Huang Buor‐Chang Wu Chia‐Tze Kao Ming‐You Shie Aoxiang Luo Fahd Alsalleeh Nicole Chung Lane Stephenson Hakan Arslan Tuba Gök Gokhan Saygili Ulya Altintop Akc ̧ay Ismail Davut Masaki Tsujimoto Yuu Irifune Yasuhisa Tsujimoto Shizuka Yamada Ikuya Watanabe Yoshihiko Hayashi Amr M. Elnaghy Shaymaa E. Elsaka Iman Z. Oskui Mohammed N. Ashtiani Ata Hashemi Hamid Jafarzadeh Raquel Osorio Mônica Yamauti Salvatore Sauro Tim Watson Manuel Toledano Josette Camilleri Patrick Laurent Imad About Arnaldo Sant' A Mendrone-J Unior Bruno Cavalini Cavenago Ronald Ordinola‐Zapata Gustavo De‐Deus Clóvis Monteiro Bramante Marco Di Antonio Hungaro Duarte Dan Zhao Ya Shen

10.1016/s0099-2399(14)00908-x article EN Journal of Endodontics 2014-10-22
Coming Soon ...