Project: Potential phosphorus uptake mechanisms of the deep sedimentary biosphere

Acronym/Short Name:Deep sea sediments
Project Duration:2015-03 -2015-04
Geolocation:Mid-Atlantic Ridge flank

Description

The goal of this project is to explore potential microbial P uptake mechanisms in marine sediments beneath the North Atlantic Gyre and their effects on the relative distribution of organic P compounds as a function of burial depth and changing redox conditions. We use a combination of metagenomic analyses and solution 31P nuclear magnetic resonance spectroscopy (31P NMR) to investigate (1) the presence of microbial functional genes pertaining to P uptake and metabolism and (2) the possible P substrates for the deep biosphere in these oligotrophic sediments.

NSF C-DEBI Award #156246 to Dr. Adina Paytan

NSF C-DEBI Award #157598 to Dr. Delphine Defforey 

DatasetLatest Version DateCurrent State
Total phosphorus concentrations in NMR sediment pretreatment extracts from samples collected during R/V JOIDES Resolution cruise JRES-336 (IODP336, North Pond) to the western flank of the mid-Atlantic Ridge in November of 20112020-06-23Final no updates expected
Solution 31P NMR spectra files from sediment samples collected during R/V JOIDES Resolution cruise JRES-336 (IODP336, North Pond) to the western flank of the mid-Atlantic Ridge in November of 20112020-06-23Final no updates expected
Molybdate reactive phosphorus concentrations in NMR pretreatment extracts from sediment samples collected during R/V JOIDES Resolution cruise JRES-336 (IODP336, North Pond) to the western flank of the mid-Atlantic Ridge in November of 20112020-06-23Preliminary and in progress
Metagenomic data from site U1382B at North Pond (IODP 336), western flank of the mid-Atlantic Ridge from core samples collected in November of 20112020-04-22Final no updates expected

People

Principal Investigator: Adina Paytan
University of California-Santa Cruz (UCSC)

Co-Principal Investigator: Dr Barbara J. Cade-Menun
Agriculture and Agri-Food Canada (AGR GC)

Co-Principal Investigator: Dr Delphine Defforey
University of California-Santa Cruz (UCSC)

Co-Principal Investigator: Brandi Kiel Reese
Texas A&M, Corpus Christi (TAMU-CC)

Co-Principal Investigator: Jason Brent Sylvan
Texas A&M University (TAMU)

Co-Principal Investigator: Benjamin Tully
University of Southern California (USC)

Co-Principal Investigator: Dr Laura Zinke
University of Southern California (USC)

Contact: Adina Paytan
University of California-Santa Cruz (UCSC)

Programs

Center for Dark Energy Biosphere Investigations [C-DEBI]

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Funded by the U.S. National Science Foundation