Dora Feng


Dora Feng
PhD student

Working Group Microbial Data Science

Department of Applied Microbial Ecology
Helmholtz Centre for Environmental Research - UFZ
Permoserstr. 15, 04318 Leipzig, Germany

Phone +49 1625177673

Dora Feng

CV / Research Experiences

02/2024 present

Microbial Data Science Group  Leipzig, Germany
Helmholtz Centre for Environmental Research
- Crop Straw Utilization based on Protaetia brevitarsis gut microbiome and frass effect analysis

09/2020 01/2024

State Key Laboratory of Soil & Sustainable Agriculture  Nanjing, China
Chinese Academy of Sciences
- Sustainable strategies for plant nutrition and fertilizer use of organic agriculture in acidic soils

07/2017 07/2020

State Key Laboratory of Tree Genetics and Breeding   Hangzhou, China
Chinese Academy of Forestry
- The characteristics and molecular mechanism of cadmium hyperaccumulation in Sedum alfridii

04/2019 12/2019

Research Institute for Environmental Innovation  Suzhou, China
Tsinghua University
- Analysis of soil environmental pollution control based on hyperaccumulation phytoremediation technology

02/2017 06/2017

National Engineering Laboratory of Industrial Enzymes  Tianjin, China
Chinese Academy of Sciences
- High-throughput screening and directed evolution of BFDase

Current Research Interests

Soil acidification is a natural process under subtropical climatic conditions with high temperature and high precipitation. In the past decades, overuse of nitrogen (N) fertilizers, especially in the form of urea or ammonium (NH4+), has intensified the acidification process. An over 10 years long term outsaid experiment shows that organic materials, such as swine manure as amendments have been reported to ameliorate acidic soils. While the crop straw amendment has shown a negative trend to ameliorate the acidity of the red soil. Therefore,the conversion of straw to organic fertilizer is the most widely used strategy.

Here in my PhD project, I hypothesized that crop straw would ameliorate soil acidification through transabdominal transformation from four progress . First, depending on the substrates fed to Protaetia brevitarsis Lewis, physicochemical properties of the residues may strongly differ, which results in distinct effects on soil fertility. Second, the straw decomposition process may also enrich and cultivate a large number of beneficial bacteria. Third, the larvae influences the soil bacterial community's composition and diversity through frass deposits and gut bacteria. Lastly, the application rates of frass have a significant impact on the soil microbial community. To test this hypothesis, I obtained some data of Mid & Hind gut metagenome, transcriptomics and metabonomics of Protaetia brevitarsis under different treatments. The aim was to investigate the potential of the novel organic fertilizer to impact the plant-associated soil microbiome and mechanisms behind observed changes. This study are crucial for a more efficient application and valorization of the frass, from both agronomical and environmental point of view.