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• W2904194669 abstract "Despite several studies reporting diazotrophic macroalgal associations (DMAs), biological nitrogen fixation (BNF) is still largely overlooked as a potential source of nitrogen (N) for macroalgal productivity. We investigated the role of BNF, via the acetylene reduction method, throughout different life stages of the invasive macroalga, Sargassum horneri, in its non-native Southern California coastal ecosystem. Throughout most of its life cycle, BNF rates were not detectable or yielded insignificant amounts of fixed N to support S. horneri productivity. However, during late summer when nutrient concentrations are usually at their minimum, BNF associated with juvenile S. horneri contributed ∼3-36% of its required N, potentially providing it with a competitive advantage. As DMAs remain poorly understood within macroalgal detrital systems, long term (15-28 days) laboratory decomposition time series were carried out to investigate the role of BNF throughout decomposition of the endemic macroalga, S. palmeri, and the invasive S. horneri. Nitrogenase activity increased drastically during the second phase of decomposition, when increasing microbial populations are typically thought to drive macroalgal degradation, with BNF rates associated with S. palmeri and S. horneri reaching up to 65 and 247 nmol N × g-1(dw) × h-1, respectively. Stimulation of BNF rates by glucose and mannitol additions, up to 42× higher rates observed with S. palmeri, suggest that labile carbon may be limiting at varying degrees in these detrital systems. Comparable, if not higher, dark BNF rates relative to light incubations during S. horneri decomposition suggest an important contribution from heterotrophic N fixers. Inhibition of nitrogenase activity, up to 98%, by sodium molybdate additions also suggest that sulfate reducers may be an important constituent of the detrital diazotrophic community. As labile N can become limiting to the microbial community during macroalgal decomposition, our results suggest that BNF may provide a source of new N, alleviating this limitation. Additionally, while BNF is rarely considered as a source for N enrichment with aging macroalgal detritus, we found it to account for ∼1-11% of N immobilized with decaying S. horneri. Our investigations suggest that DMAs may be globally important with Sargassum and potentially occur within other macroalgal detrital systems." @default.
• W2904194669 created "2018-12-22" @default.
• W2904194669 creator A5036424959 @default.
• W2904194669 creator A5046644524 @default.
• W2904194669 creator A5084011935 @default.
• W2904194669 date "2018-12-18" @default.
• W2904194669 modified "2023-10-13" @default.
• W2904194669 title "Diazotrophic Macroalgal Associations With Living and Decomposing Sargassum" @default.
• W2904194669 cites W110027634 @default.
• W2904194669 cites W1542238059 @default.
• W2904194669 cites W1605609003 @default.
• W2904194669 cites W1756396515 @default.
• W2904194669 cites W1813590378 @default.
• W2904194669 cites W1964439977 @default.
• W2904194669 cites W1964936662 @default.
• W2904194669 cites W1967910867 @default.
• W2904194669 cites W1968543101 @default.
• W2904194669 cites W1970185546 @default.
• W2904194669 cites W1971261691 @default.
• W2904194669 cites W1971485248 @default.
• W2904194669 cites W1974003688 @default.
• W2904194669 cites W1976570310 @default.
• W2904194669 cites W1983285549 @default.
• W2904194669 cites W1986204191 @default.
• W2904194669 cites W1986408766 @default.
• W2904194669 cites W1987314650 @default.
• W2904194669 cites W1990385667 @default.
• W2904194669 cites W1994532782 @default.
• W2904194669 cites W1995594134 @default.
• W2904194669 cites W2000335304 @default.
• W2904194669 cites W2001242552 @default.
• W2904194669 cites W2004769609 @default.
• W2904194669 cites W2006591152 @default.
• W2904194669 cites W2006706159 @default.
• W2904194669 cites W2012954486 @default.
• W2904194669 cites W2014281548 @default.
• W2904194669 cites W2015554374 @default.
• W2904194669 cites W2018596178 @default.
• W2904194669 cites W2020370999 @default.
• W2904194669 cites W2020741285 @default.
• W2904194669 cites W2022197704 @default.
• W2904194669 cites W2022497613 @default.
• W2904194669 cites W2024540858 @default.
• W2904194669 cites W2024992736 @default.
• W2904194669 cites W2025936981 @default.
• W2904194669 cites W2026049672 @default.
• W2904194669 cites W2028276939 @default.
• W2904194669 cites W2030895085 @default.
• W2904194669 cites W2035880547 @default.
• W2904194669 cites W2036281388 @default.
• W2904194669 cites W2037376346 @default.
• W2904194669 cites W2038731750 @default.
• W2904194669 cites W2040021969 @default.
• W2904194669 cites W2045410088 @default.
• W2904194669 cites W2046242922 @default.
• W2904194669 cites W2046696500 @default.
• W2904194669 cites W2050896913 @default.
• W2904194669 cites W2052739253 @default.
• W2904194669 cites W2054607874 @default.
• W2904194669 cites W2058206400 @default.
• W2904194669 cites W2059011945 @default.
• W2904194669 cites W2060544284 @default.
• W2904194669 cites W2063627199 @default.
• W2904194669 cites W2066037456 @default.
• W2904194669 cites W2071790081 @default.
• W2904194669 cites W2072821373 @default.
• W2904194669 cites W2082794618 @default.
• W2904194669 cites W2084212836 @default.
• W2904194669 cites W2085126691 @default.
• W2904194669 cites W2085510349 @default.
• W2904194669 cites W2087751991 @default.
• W2904194669 cites W2089140760 @default.
• W2904194669 cites W2091210601 @default.
• W2904194669 cites W2093848808 @default.
• W2904194669 cites W2094546081 @default.
• W2904194669 cites W2095105842 @default.
• W2904194669 cites W2096086077 @default.
• W2904194669 cites W2102031718 @default.
• W2904194669 cites W2105082791 @default.
• W2904194669 cites W2108814459 @default.
• W2904194669 cites W2130973755 @default.
• W2904194669 cites W2141985687 @default.
• W2904194669 cites W2142832121 @default.
• W2904194669 cites W2152777025 @default.
• W2904194669 cites W2167291865 @default.
• W2904194669 cites W2171185815 @default.
• W2904194669 cites W2212084322 @default.
• W2904194669 cites W2519624182 @default.
• W2904194669 cites W2581936884 @default.
• W2904194669 cites W2617679569 @default.
• W2904194669 cites W2756190884 @default.
• W2904194669 cites W2765364335 @default.
• W2904194669 cites W2896486464 @default.
• W2904194669 cites W338078106 @default.
• W2904194669 cites W4236204761 @default.
• W2904194669 cites W4244678151 @default.
• W2904194669 cites W4246249695 @default.
• W2904194669 cites W4246693716 @default.
• W2904194669 cites W4251058433 @default.
• W2904194669 cites W4254883034 @default.

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