{"id":19,"date":"2017-06-08T20:29:08","date_gmt":"2017-06-09T00:29:08","guid":{"rendered":"https:\/\/www2.whoi.edu\/staff\/template-blue-prepop\/?page_id=19"},"modified":"2024-05-13T11:45:02","modified_gmt":"2024-05-13T15:45:02","slug":"project-3","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/projects\/project-3\/","title":{"rendered":"Quantifying microbial activity"},"content":{"rendered":"\n\n

Metabolic activity of marine microorganisms<\/h1>\n

What are the factors controlling the fate of organic matter used by microorganisms?<\/h3>\n

Organic matter is a heterogeneous mixture of compounds. Through my research I identified metabolically active microorganisms and characterized the factors controlling the distribution of active and inactive bacterial cells in a variety of ecosystems. This research has broad implications for how organic matter is cycled through marine food webs because it connects the consumption of organic carbon with the in situ<\/em> microbial community.<\/p>\n

Publications<\/h3>\n

del Giorgio P.A., R. Condon, T. Bouvier, K. Longnecker<\/strong>, C. Bouvier, E.B. Sherr, J.M. Gasol (2011). Coherent patterns in bacterial growth, growth efficiency, and leucine metabolism along a northeastern Pacific inshore-offshore transect. Limnology and Oceanography<\/em> 56: 1-16<\/p>\n

Longnecker, K.<\/strong>, M.W. Lomas, and B.A.S. Van Mooy (2010). Abundance and diversity of heterotrophic bacterial cells assimilating phosphate in the subtropical North Atlantic Ocean. Environmental Microbiology<\/em> 12: 2773-2782.<\/p>\n

Longnecker, K.<\/strong>, M.J. Wilson, E.B. Sherr, and B.F. Sherr (2010). Effect of top-down control on cell-specific activity and diversity of active marine bacterioplankton. Aquatic Microbial Ecology<\/em>. 58:153-165.<\/p>\n

Sherr, E.B., B. F. Sherr, and K. Longnecker<\/strong> (2006). Distribution of bacterial abundance and cell-specific nucleic acid content in the Northeast Pacific Ocean. Deep-Sea Research I <\/em>53: 713-725.<\/p>\n

Longnecker, K.<\/strong>, B.F. Sherr, and E.B. Sherr (2006). Variation in cell-specific rates of leucine and thymidine incorporation by high and low nucleic acid content marine bacteria off the Oregon coast. Aquatic Microbial Ecology<\/em>. 43: 113-125.<\/p>\n

Longnecker, K.<\/strong>, D.S. Homen, E.B. Sherr and B.F. Sherr (2006). Similar community structure of biosynthetically active prokaryotes across a range of ecosystem trophic states. Aquatic Microbial Ecology<\/em>.42: 265-276.<\/p>\n

Longnecker, K.<\/strong>, B. F. Sherr and E. B. Sherr (2005). Activity and phylogenetic diversity of bacterial cells with high and low nucleic acid content and electron transport system activity in an upwelling ecosystem. Applied and Environmental Microbiology<\/em>. 71: 7737-7749.<\/p>\n\t

Partners<\/h3>\n

My research on microbial metabolic activity began with my Ph.D. dissertation at Oregon State University where I was advised by Evelyn and Barry Sherr. I did some additional work identifying metabolically active cells at WHOI with Ben Van Mooy.<\/p>\n\n","protected":false},"excerpt":{"rendered":"

Metabolic activity of marine microorganisms What are the factors controlling the fate of organic matter used by microorganisms? Organic matter is a heterogeneous mixture of compounds. Through my research I identified metabolically active microorganisms and characterized the factors controlling the distribution of active and inactive bacterial cells in a variety of ecosystems. This research has…<\/p>\n","protected":false},"author":78,"featured_media":0,"parent":13,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/pages\/19"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/users\/78"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/pages\/19\/revisions"}],"predecessor-version":[{"id":372,"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/pages\/19\/revisions\/372"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/pages\/13"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/staff\/klongnecker\/wp-json\/wp\/v2\/media?parent=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}