Postdoctoral Research Assistant position: Enhancing plant nutrition via host genetic modulation of the rhizosphere microbiota

The available position is for a Postdoctoral Research Assistant in the project titled “Enhancing plant nutrition via host genetic modulation of the rhizosphere microbiota” at IRNASA-CSIC. This is a full-time position (40 hours per week), offered under a fixed-term contract of 24 months, with an anticipated start date in October 2025. The annual salary ranges between €32,000 and €35,000, depending on the candidate’s experience. The successful applicant will work under the supervision of Dr. Carmen Escudero Martinez. Applicants are expected to have experience in general molecular biology, omics technologies, sequencing, metabarcoding, bioinformatics, and multivariate statistical analysis. Relevant publications related to the research focus include articles in Nature Communications (2022) and Annual Review of Phytopathology (2022).

Overview of the project

Identifying and selecting novel crops capable of thriving under growth-limiting nutrient conditions is gaining centre stage in fundamental science and its transfer to agriculture. Microbial communities populating the root-soil interface, collectively referred to as the rhizosphere microbiota, can expand crops’ genetic and metabolic capabilities by enhancing the plant’s nutrient uptake. This microbiota is not randomly assembled but the result of selective processes mediated by both environmental conditions and the host plant genome. Thus, selecting novel crop traits that shape microbial communities could enhance plant nutrition in resource-limiting environments. However, there is still limited understanding of the genetic associations between the microbiota and their host plants.

This project aims to elucidate how crop genetic diversity modulates the microbiota associated with nutrient dynamics at the rhizosphere by answering the following questions: 1) How does barley genetic variation shape nutrient-related microbial functions in the rhizosphere? We will use different complementary methods to assess microbial functions linked to microbial activity in the rhizosphere across environments 2) What multi-kingdom microbial communities inhabiting the barley rhizosphere have functions enhancing plant nutrition? and 3) How can root traits be used as predictive tools for nutrient-related microbial functions?

To tackle these objectives, you will follow a ground-breaking, comprehensive multi-omics approach by integrating plant genetics, microbial metagenomics, plant transcriptomics, and metabolomics. The anticipated outputs of this research will impact both fundamental and applied research, setting the stage for the deployment of specific plant traits that enhance microbial functions and overall plant performance in resource-limited environments.

Responsibilities include:

  • Experimental design
  • Sample harvesting
  • Sequencing library construction
  • Quantitative genetics analyses
  • Manage metabarcoding bioinformatics pipelines
  • Microbiota diversity and modelling analyses
  • Work with other team members and other colleagues across the Institute.
  • Manage own academic research and administrative activities. This involves small scale project management, to co-ordinate multiple aspects of work to meet deadlines.
  • Collaborate in the preparation of scientific reports and journal articles and occasionally present papers and posters.
  • Act as a source of information and advice to other members of the group on scientific protocols and experimental techniques.
  • Development of new ideas.

Selection criteria

Essential

  • Has a PhD or equivalent in a relevant area: genetics and/or microbiome
  • Strong track record in writing and publishing scientific manuscripts
  • Able to plan and manage large experiments
  • Interpersonal communication skills and enthusiasm
  • Experience in multivariate microbiome analyses
  • Experience with quantitative genetics analyses
  • Work independently
  • Team player
  • Potential travel abroad for 6 months as a visiting researcher

Desirable

  • Experience with bioinformatics omics data analyses
  • Experience in quantitative genetics
  • Experience working with root and rhizosphere microenvironments

The position consists of a combination of wet lab work and statistical/bioinformatics analyses. Please apply even if you do not meet all the criteria—training will be provided. I am looking for an enthusiastic and independent individual with a passion for learning and a willingness to take on challenges.

About IRNASA

The Institute of Natural Resources and Agrobiology of Salamanca (IRNASA) is part of the Spanish National Research Council (CSIC). We carry out multidisciplinary research in different fields related to agricultural crops and their products, environmental conservation and animal health.

Our goal is to integrate biology, pathology, soil chemistry and ecology to provide knowledge and scientific solutions for improving management of agricultural systems in semi-arid areas. By generating new knowledge, we aim to contribute to maintaining or increasing agricultural productivity in an environmentally friendly way, with economic and social benefits.

We seek to advance sustainability, food security and global health, to help formulate new policies and practices based on innovative molecular, ecological and environmental science, and to effectively transfer science into practice. To this end, we maintain collaborations with other national and international institutions as well as public and private organisations, that help us to achieve this goal for the benefit of our society.

How to apply

Please, send your CV and a supporting statement explaining your research interests and how you meet the selection criteria with the names and contacts of three references to c.m.z.escuderomartinez@dundee.ac.uk. The supporting statement must explain how you meet each of the selection criteria for the post using examples of your skills and experience. This may include experience gained in employment, education, or during career breaks (such as time out to care for dependents). Your application will be judged solely based on how you demonstrate that you meet the selection criteria stated in the job description.

Please upload all documents as PDF files with your name and the document type in the filename.

All applications must be received by 17:00 p.m. on the closing date stated in the online advertisement.

For further information and inquiries contact Dr. Carmen Escudero-Martinez at c.m.z.escuderomartinez@dundee.es

Equality of Opportunity

Employment will be determined only by personal merit and the application of criteria related to the duties of each particular post. In all cases, the ability to perform the job will be the primary consideration. No applicant or member of staff shall be discriminated against because of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.

Postdoctoral Position on Marine Biogeosciences & Paleoclimate in the framework of the ERC Project PASSAGE

Applications are invited for a Postdoctoral position for 24 months to be funded by the European Research Council (ERC) Project “PASSAGE: Provenance And transport PathwayS of mArine proxy-bearinG particlEs”, starting in September 2025 and supervised by Dr. Blanca Ausín.

Aims and Scope

PASSAGE investigates the long journey that marine sedimentary components experiment in the ocean since their formation until their final deposition and its impact on climate reconstructions. Their secondary transport to distant locations introduces allochthonous climate signals in paleoclimate records, raising questions about the robustness and fidelity of corresponding climate interpretations. PASSAGE aims to fill in the knowledge gap on particle transport modes, to generate a new proxy to identify distorted climate signals, and to provide an accessible approach to correct them. Full information about the project can be found here: https://passage.csic.es

Keywords: Biogeosciences, Paleoclimate, Sediment traps, Marine sediments, Organic carbon, Radiocarbon, Laboratory experiments

Description

The Postdoctoral researcher will contribute to the goals of PASSAGE using a combination of biogeochemical techniques, exploring the geochemical, sedimentological and micropaleontological characterization of sedimentary particles, and implementation of isotope mixing models and correction of existing records. This researcher will work with the samples from the first sediment traps ever recovered from the SW Iberian margin, a benchmark region for paleoclimate studies at mid-latitudes.

The Postdoctoral researcher will join the Institute of Natural Resources and Agrobiology (IRNASA) of the Spanish National Research Council (CSIC) and enrol the Biogeosciences and Climate Change research group (https://www.irnasa.csic.es/en/biogeosciences-and-climate-change/), which holds extensive expertise in both Global Carbon Cycle (organic matter dynamics) and Paleoclimate studies (climate variability at different time scales).

Requirements

We look for a highly motivated and proactive Postdoc with a PhD title in Earth Sciences, Marine Sciences, Environmental Sciences, or related disciplines relevant to the position. Candidates are expected to have a strong interest in the global (organic) carbon cycle, modern ocean hydrology and paleoclimate. Candidates are expected to carry out laboratory work, analytical work, data
analyses and interpretation. Candidates with previous experience in sediment trap research and/or radiocarbon of organic carbon are highly welcome. Programming skills in R or Matlab are ideal. They should be able to work both independently and within our team. Good understanding, spoken and written English skills are essential to successfully conduct the research.

This PhD project implies participation in at least one oceanographic cruise of 2-3 weeks duration in the Iberian margin and a strong laboratory work component.

Tasks

Analyse and interpret hydrographic databases
Conduct geochemical, sedimentological and micropaleontological on different types of samples (sediment traps, sediments, filtered water, etc.)
Formulate additional hypotheses and research questions
Collaborate, discuss data, and exchange ideas with group members, mentors and colleagues.
Write high quality research manuscripts for publication in peer-reviewed scientific journals.
Disseminate results at international conferences.
Mentor undergraduate students.

Conditions of contract
This is a full-time postdoctoral contract 40 h/ week) limited to 24 months.
The gross salary is 3,207.85 €/month (12 salaries a year).
The work must be carried on-site at IRNASA-CSIC (Salamanca, Spain).
Estimated starting date: September/October 2025.

Application
Deadline: May 20th 2025
Interested candidates must send (i) a brief CV (maximum 2 pages), (ii) a letter of their research interest and motivation for this position (iii) and one recommendation letter.
Application from candidates expected to complete their PhDs by the end of July/August are also welcome.
For further information and inquiries contact Dr. Blanca Ausín at blanca.ausin@irnasa.csic.es

Selection process

The selection committee will ensure a transparent, open, equal, and internationally accepted recruitment process, with special care for gender issues.

Applications will be valued based on better adaptation of the Curriculum vitae to the profile established and compliance with the requirements. Selected candidates will be invited for an on-line interview in which they will provide a 7-minute presentation and will answer questions from the selection committee.

Postdoctoral Position on Marine Biogeosciences & Paleoclimate in the framework of the ERC Project PASSAGE

Applications are invited for a Postdoctoral position for 24 months to be funded by the European Research Council (ERC) Project “PASSAGE: Provenance And transport PathwayS of mArine proxy-bearinG particlEs”, starting in September 2025 and supervised by Dr. Blanca Ausín.

Aims and Scope

PASSAGE investigates the long journey that marine sedimentary components experiment in the ocean since their formation until their final deposition and its impact on climate reconstructions. Their secondary transport to distant locations introduces allochthonous climate signals in paleoclimate records, raising questions about the robustness and fidelity of corresponding climate interpretations. PASSAGE aims to fill in the knowledge gap on particle transport modes, to generate a new proxy to identify distorted climate signals, and to provide an accessible approach to correct them. Full information about the project can be found here: https://passage.csic.es

Keywords: Biogeosciences, Paleoclimate, Sediment traps, Marine sediments, Organic carbon, Radiocarbon, Laboratory experiments

Description

The Postdoctoral researcher will contribute to the goals of PASSAGE using a combination of biogeochemical techniques, exploring the geochemical, sedimentological and micropaleontological characterization of sedimentary particles, and implementation of isotope mixing models and correction of existing records. This researcher will work with the samples from the first sediment traps ever recovered from the SW Iberian margin, a benchmark region for paleoclimate studies at mid-latitudes.

The Postdoctoral researcher will join the Institute of Natural Resources and Agrobiology (IRNASA) of the Spanish National Research Council (CSIC) and enrol the Biogeosciences and Climate Change research group (https://www.irnasa.csic.es/en/biogeosciences-and-climate-change/), which holds extensive expertise in both Global Carbon Cycle (organic matter dynamics) and Paleoclimate studies (climate variability at different time scales).

Requirements

We look for a highly motivated and proactive Postdoc with a PhD title in Earth Sciences, Marine Sciences, Environmental Sciences, or related disciplines relevant to the position. Candidates are expected to have a strong interest in the global (organic) carbon cycle, modern ocean hydrology and paleoclimate. Candidates are expected to carry out laboratory work, analytical work, data
analyses and interpretation. Candidates with previous experience in sediment trap research and/or radiocarbon of organic carbon are highly welcome. Programming skills in R or Matlab are ideal. They should be able to work both independently and within our team. Good understanding, spoken and written English skills are essential to successfully conduct the research.

This PhD project implies participation in at least one oceanographic cruise of 2-3 weeks duration in the Iberian margin and a strong laboratory work component.

Tasks

Analyse and interpret hydrographic databases
Conduct geochemical, sedimentological and micropaleontological on different types of samples (sediment traps, sediments, filtered water, etc.)
Formulate additional hypotheses and research questions
Collaborate, discuss data, and exchange ideas with group members, mentors and colleagues.
Write high quality research manuscripts for publication in peer-reviewed scientific journals.
Disseminate results at international conferences.
Mentor undergraduate students.

Conditions of contract
This is a full-time postdoctoral contract 40 h/ week) limited to 24 months.
The gross salary is 3,207.85 €/month (12 salaries a year).
The work must be carried on-site at IRNASA-CSIC (Salamanca, Spain).
Estimated starting date: September/October 2025.

Application
Deadline: May 20th 2025
Interested candidates must send (i) a brief CV (maximum 2 pages), (ii) a letter of their research interest and motivation for this position (iii) and one recommendation letter.
Application from candidates expected to complete their PhDs by the end of July/August are also welcome.
For further information and inquiries contact Dr. Blanca Ausín at blanca.ausin@irnasa.csic.es

Selection process

The selection committee will ensure a transparent, open, equal, and internationally accepted recruitment process, with special care for gender issues.

Applications will be valued based on better adaptation of the Curriculum vitae to the profile established and compliance with the requirements. Selected candidates will be invited for an on-line interview in which they will provide a 7-minute presentation and will answer questions from the selection committee.