Bijing Xiong

Doctoral researcher skilled in: Ratiometric optical sensing; Single-cell analysis; Advanced microscopic imaging and image analysis.

Contact

Phone +49 341 235-1371
bijing.xiong@ufz.de

Department of Environmental Microbiology
Working Group Bioavailability
Helmholtz-Centre for
Environmental Research - UFZ
Permoserstr. 15, 04318 Leipzig, Germany

Bijing Xiong

Research interest

My current research interest includes:

Optical oxygen mapping at micrometer & centimeter scale
Micrometre-scale oxygen mapping in the mycosphere in vivo

Optical oxygen sensing

Here, I develop platforms to optically follow the spatiotemporal oxygen profiles in micro-environments such as mycosphere. Combining advanced time-lapse microscopy and molecular approaches, I also resolve in vivo effects of microscale oxygen on the bacterial life, e.g. bacterial germination, growth, metabolic activity and spatial dispersal.

Optical pH sensing in the mycopshere using single-cell pH bioreporters
Optical pH sensing in the mycosphere using a novel whole-cell pH bioreporter

Optical pH sensing using a novel whole-cell pH bioreporter

Here, I mainly focus on developing and application of a whole-cell pH bioreporter to report environmental pH at single-cell level. A ratiometric, florescence-based bioreporter has been developed and applied to follow spatiotemporal pH dynamics in the micro-environments such as mycosphere.

Oxygen and pH sensing at direct hyphal surface in a microfluidic device
Oxygen (a) and pH (b) sensing at direct hyphal surface

pH & oxygen sensing at single-cell level

Here, I develop micro-platforms (i.e. microfluidic devices) to resolve pH/oxygen and their effects on bacterial activity at single-cell level. Time-lapse microscopy, micrometre-sized oxygen-sensitive beads and single-cell pH bioreporters are used to measure the environmental pH/oxygen in the hyphal liquid water (‘fungal highways’) and their effects on bacterial motility.


Publications

Bi-Jing Xiong, Christian Dusny, Lin Wang, Jens Appel, Kristin Lindstaedt, Dietmar Schlosser, Hauke Harms, and Lukas Y. Wick, 2021, Illuminate the hidden: in vivo mapping of microscale pH in the mycosphere using a novel whole-cell biosensor, ISME commons.
Bi-Jing Xiong, Youchi Zhang, Yanwei Hou, Hans Peter H. Arp, Brian J. Reid, Chao Cai, Enhanced biodegradation of PAHs in historically contaminated soil by M. gilvum inoculated biochar, 2017, Chemosphere.
Chao Cai, Bi-Jing Xiong, Youchi Zhang, Xinhu Li, Luis M. Nunes, Critical comparison of soil pollution indices for assessing contamination with toxic metals, 2015, Water, air & soil pollution.
Patent: Chao Cai, Bi-Jing Xiong, Youchi Zhang, Yongguan zhu, 2017, Remediation of PAHs contaminated soil using biochar-microbe composite, patent No. Zl201510390223.8

CV

Since November 2017

November 2021 and 2019


  • PhD Student at the Dept. of Environmental Microbiology
    Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany

    • Research stay in University of Pau, Pau, France

      German Academic Exchange Serve (DAAD) FunDeg project

February–September 2017

  • Research assistant
  • "Remediation of PAHs Contaminated Soils by Plant and Microbes Immobilized on Biochar"
  • Key Lab of Urban Environment and Health, Institute of Urban Environment (IUE), Chinese Academy of Sciences (CAS), Xiamen, 361021, Fujian, China

2013 – 2017

  • Master of Science
  • Environmental Sciences, Master thesis: "Bioremediation of PAHs Contaminated Soils by Microbes Immobilized on Biochar"
  • Key Lab of Urban Environment and Health, Institute of Urban Environment (IUE), Chinese Academy of Sciences (CAS), Xiamen, 361021, Fujian, China

2009-2013

  • Bachelor of Science
  • Biology, Bachelor thesis: "Invasive Species of the Grass Family in China"
  • School of Life Science, Yunnan University, Kunming, 650091, Yunnan, China