Matches in SemOpenAlex for { <https://semopenalex.org/work/W2058863950> ?p ?o ?g. }
- W2058863950 endingPage "15" @default.
- W2058863950 startingPage "1" @default.
- W2058863950 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 409:1-15 (2010) - DOI: https://doi.org/10.3354/meps08639 FEATURE ARTICLE Burrowing deeper into benthic nitrogen cycling: the impact of bioturbation on nitrogen fixation coupled to sulfate reduction Victoria J. Bertics1,2,*, Jill A. Sohm1,*, Tina Treude1,2, Cheryl-Emiliane T. Chow1, Douglas G. Capone1, Jed A. Fuhrman1, Wiebke Ziebis1,** 1Dept. of Biological Sciences and Wrigley Institute for Environmental Studies, University of Southern California, 3616 Trousdale Parkway, Allan Hancock Foundation Building, Los Angeles, California 90089-0371, USA 2Leibniz Institute of Marine Sciences, Wischhofstr. 1–3, GEB. 4, Kiel 24148, Germany *These authors contributed equally to this manuscript**Corresponding author. Email: wziebis@usc.edu ABSTRACT: Biological dinitrogen (N2) fixation is the primary input of fixed nitrogen (N) into the marine biosphere, making it an essential process contributing to the biological functions of all organisms. Because biologically available N often limits marine productivity, microbial processes leading to its loss and gain (e.g. denitrification and N2 fixation, respectively) play an important role in global biogeochemical cycles. Bioturbation is known to influence benthic N cycling, most often reported as enhancement of denitrification and a subsequent loss of N2 from the system. N2 fixation has rarely been addressed in bioturbation studies. Instead, sedimentary N2 fixation typically has been considered important in relatively rare, localized habitats such as rhizosphere and phototrophic microbial mat environments. However, the potential for N2 fixation in marine sediments may be more widespread. We show here that nitrogenase activity can be very high (up to 5 nmol C2H4 cm–3 h–1) in coastal sediments bioturbated by the ghost shrimp Neotrypaea californiensis and at depths below 5 cm. Integrated subsurface N2-fixation rates were greater than those previously found for un-vegetated estuarine sediments and were comparable to rates from photosynthetic microbial mats and rhizospheres. Inhibition experiments and genetic analysis showed that this activity was mainly linked to sulfate reduction. Sulfate-reducing bacteria (SRB) are widespread and abundant in marine sediments, with many possessing the genetic capacity to fix N2. Our results show that N2 fixation by SRB in bioturbated sediments may be an important process leading to new N input into marine sediments. Given the ubiquity of bioturbation and of SRB in marine sediments, this overlooked benthic N2 fixation may play an important role in marine N and carbon (C) cycles. KEY WORDS: Bioturbation · Crustaceans · Marine sediment · Microniche · Nitrogen fixation · Sulfate reduction Full text in pdf format Information about this Feature Article NextCite this article as: Bertics VJ, Sohm JA, Treude T, Chow CET, Capone DG, Fuhrman JA, Ziebis W (2010) Burrowing deeper into benthic nitrogen cycling: the impact of bioturbation on nitrogen fixation coupled to sulfate reduction. Mar Ecol Prog Ser 409:1-15. https://doi.org/10.3354/meps08639 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 409. Online publication date: June 23, 2010 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2010 Inter-Research." @default.
- W2058863950 created "2016-06-24" @default.
- W2058863950 creator A5001042785 @default.
- W2058863950 creator A5029276419 @default.
- W2058863950 creator A5035958952 @default.
- W2058863950 creator A5047646947 @default.
- W2058863950 creator A5061463037 @default.
- W2058863950 creator A5085948072 @default.
- W2058863950 creator A5089651837 @default.
- W2058863950 date "2010-06-23" @default.
- W2058863950 modified "2023-10-14" @default.
- W2058863950 title "Burrowing deeper into benthic nitrogen cycling: the impact of bioturbation on nitrogen fixation coupled to sulfate reduction" @default.
- W2058863950 cites W116309347 @default.
- W2058863950 cites W1484900949 @default.
- W2058863950 cites W1500520775 @default.
- W2058863950 cites W1530561113 @default.
- W2058863950 cites W1565382478 @default.
- W2058863950 cites W1572600155 @default.
- W2058863950 cites W1579045893 @default.
- W2058863950 cites W1590600798 @default.
- W2058863950 cites W1604040708 @default.
- W2058863950 cites W1606242578 @default.
- W2058863950 cites W1619095826 @default.
- W2058863950 cites W1900595810 @default.
- W2058863950 cites W193264372 @default.
- W2058863950 cites W1972082477 @default.
- W2058863950 cites W1974723174 @default.
- W2058863950 cites W1976126631 @default.
- W2058863950 cites W1979716797 @default.
- W2058863950 cites W1981188941 @default.
- W2058863950 cites W1983581523 @default.
- W2058863950 cites W1987832997 @default.
- W2058863950 cites W1991580707 @default.
- W2058863950 cites W1994071321 @default.
- W2058863950 cites W1995704030 @default.
- W2058863950 cites W1995922746 @default.
- W2058863950 cites W2003125469 @default.
- W2058863950 cites W2003310724 @default.
- W2058863950 cites W2004094686 @default.
- W2058863950 cites W2006484686 @default.
- W2058863950 cites W2011800068 @default.
- W2058863950 cites W2023729952 @default.
- W2058863950 cites W2024177900 @default.
- W2058863950 cites W2027534364 @default.
- W2058863950 cites W2029048327 @default.
- W2058863950 cites W2035298330 @default.
- W2058863950 cites W2038445638 @default.
- W2058863950 cites W2042007475 @default.
- W2058863950 cites W2044285539 @default.
- W2058863950 cites W2045255399 @default.
- W2058863950 cites W2046514298 @default.
- W2058863950 cites W2047738150 @default.
- W2058863950 cites W2048432238 @default.
- W2058863950 cites W2050902215 @default.
- W2058863950 cites W2054073397 @default.
- W2058863950 cites W2056392157 @default.
- W2058863950 cites W2057749527 @default.
- W2058863950 cites W2058191043 @default.
- W2058863950 cites W2061005883 @default.
- W2058863950 cites W2063877961 @default.
- W2058863950 cites W2064219582 @default.
- W2058863950 cites W2065012041 @default.
- W2058863950 cites W2065244200 @default.
- W2058863950 cites W2067111516 @default.
- W2058863950 cites W2081442956 @default.
- W2058863950 cites W2082250875 @default.
- W2058863950 cites W2084022052 @default.
- W2058863950 cites W2087426695 @default.
- W2058863950 cites W2088507970 @default.
- W2058863950 cites W2091161464 @default.
- W2058863950 cites W2092811313 @default.
- W2058863950 cites W2097145905 @default.
- W2058863950 cites W2098300392 @default.
- W2058863950 cites W2110917095 @default.
- W2058863950 cites W2111047819 @default.
- W2058863950 cites W2114552774 @default.
- W2058863950 cites W2117168287 @default.
- W2058863950 cites W2119526669 @default.
- W2058863950 cites W2119735911 @default.
- W2058863950 cites W2123820395 @default.
- W2058863950 cites W2134878076 @default.
- W2058863950 cites W2142462683 @default.
- W2058863950 cites W2155234098 @default.
- W2058863950 cites W2155806125 @default.
- W2058863950 cites W2157269976 @default.
- W2058863950 cites W2163068113 @default.
- W2058863950 cites W2164724695 @default.
- W2058863950 cites W2166395264 @default.
- W2058863950 cites W2170597649 @default.
- W2058863950 cites W2171070596 @default.
- W2058863950 cites W2319346873 @default.
- W2058863950 cites W2319945278 @default.
- W2058863950 cites W2320085974 @default.
- W2058863950 cites W2323652352 @default.
- W2058863950 cites W2896392306 @default.
- W2058863950 cites W2896736635 @default.
- W2058863950 cites W2912979477 @default.
- W2058863950 cites W2746972470 @default.