Abstract
Bacteria in freshwater systems play an important role in nutrient cycling through both assimilatory and dissimilatory processes. Biotic and abiotic components of the environment affect these transformations as does the stoichiometry of the nutrients. We examined responses of four major taxa of bacteria in biofilms subjected to various N:P molar ratios using either nitrate or ammonium as a nitrogen source. Fluorescent in situ hybridization was used to enumerate the Domain bacteria as well as the alpha-, beta-, and gamma-proteobacteria, and the Cytophaga-Flavobacteria cluster. Generally, bacterial responses to the treatments were limited. However, the Cytophaga-Flavobacteria and beta-proteobacteria both responded more to the ammonium additions than nitrate, whereas, the alpha-proteobacteria responded more to nitrate additions. The beta-proteobacteria also exhibited peak relative abundance at the highest N:P ratio. Nutrient concentrations were significantly different after the incubation period, and there were distinct changes in the stoichiometry of the microcosms with ammonium. We demonstrated that bacteria may play an important role in nutrient uptake, and transformation, and can have a dramatic effect on the nutrient stoichiom...Continue Reading
References
Jan 1, 1993·Cytometry·G WallnerW Beisker
May 1, 1993·Applied and Environmental Microbiology·M WagnerK H Schleifer
Jul 1, 1997·Applied and Environmental Microbiology·W D HiornsJ P Zehr
Jan 30, 1999·Systematic and Applied Microbiology·G ZwartH J Laanbroek
May 26, 1999·Microbial Ecology·W ManzJ R Lawrence
Dec 11, 1999·Archives of Microbiology·M BerchtoldH Konig
Dec 1, 2000·Applied and Environmental Microbiology·M T Cottrell, D L Kirchman
Apr 6, 2001·Cellular and Molecular Life Sciences : CMLS·J W Moir, N J Wood
Oct 27, 2001·Applied and Environmental Microbiology·A E AllenS Zani
Mar 2, 2002·Applied and Environmental Microbiology·Jonathan P Zehr, Bess B Ward
May 25, 2002·Microbial Ecology·K. SimekJ. Hejzlar
Jan 7, 2003·Applied and Environmental Microbiology·Jarone Pinhassi, Tom Berman
Apr 20, 2004·Environmental Pollution·V H SmithJ C Nekola
Sep 4, 2004·Environmental Microbiology·Nabla KennedyNicholas Clipson
Jan 11, 2005·Applied and Environmental Microbiology·Anthony C Yannarell, Eric W Triplett
May 5, 2005·Applied and Environmental Microbiology·Ola A Olapade, Laura G Leff
Dec 7, 2005·FEMS Microbiology Ecology·Katleen Van der GuchtWim Vyverman
Dec 7, 2005·FEMS Microbiology Ecology·Ludwig JardillierDidier Debroas
Jan 5, 2006·Applied and Environmental Microbiology·Meredith A J HullarDavid A Stahl
Apr 7, 2006·Microbial Ecology·Michael J Lemke, Laura G Leff
Jun 22, 2006·Canadian Journal of Microbiology·Ola A Olapade, Laura G Leff
Feb 20, 2007·Microbial Ecology·Melissa A Rubin, Laura G Leff
Nov 21, 2007·Applied and Environmental Microbiology·Sara BeierJürgen Marxsen
Feb 1, 2002·FEMS Microbiology Ecology·David L Kirchman
Feb 1, 2003·FEMS Microbiology Ecology·Ruben ArayaMasao Nasu
May 1, 1990·Microbial Ecology·Y Tezuka
Oct 1, 1982·Microbial Ecology·T K Haack, G A McFeters
Citations
Apr 12, 2013·BMC Microbiology·Sarah R Carrino-KykerDavid J Burke
Jun 21, 2012·PloS One·Sari PeuraRoger I Jones
Aug 13, 2015·Applied Microbiology and Biotechnology·Zhenshun ZengXiaoxue Wang
Mar 6, 2015·PloS One·Patrícia S CostaAndréa M A Nascimento
May 22, 2016·The Science of the Total Environment·Yu HuYing Sun
May 21, 2015·PloS One·Yue ZhangYing Sun
Mar 8, 2012·Plastic Surgical Nursing : Official Journal of the American Society of Plastic and Reconstructive Surgical Nurses·Oliver R Mitchell
Jul 13, 2017·Brazilian Journal of Biology = Revista Brasleira De Biologia·L P TessarolliA A H Vieira
Oct 30, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·G ReynosoM M Steffen
May 24, 2019·Environmental Science and Pollution Research International·Xiaodong QuXia Du
Feb 13, 2021·Frontiers in Microbiology·Ping GaoXianzhe Gong