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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2010.03221.x
|2 doi
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|a pubmed24n0656.xml
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|a (NLM)20345638
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Hogan, E J
|e verfasserin
|4 aut
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|a Response of phosphomonoesterase activity in the lichen Cladonia portentosa to nitrogen and phosphorus enrichment in a field manipulation experiment
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 20.09.2010
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|a Date Revised 10.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a *Effects of nitrogen (N) enrichment on the heathland lichen Cladonia portentosa were quantified to test the hypothesis that modified N : phosphorus (P) relationships observed in this species in N-polluted natural environments are a direct effect of increased N deposition, and to evaluate potential confounding effects of N form and P availability. *Cladonia portentosa was harvested from experimental plots in lichen-rich peatland vegetation (background total N deposition of 8 kg N ha(-1) yr(-1)) treated for 4 yr with additional wet N deposition at 0, 8, 24 and 56 kg N ha(-1) yr(-1) as either NH(4)(+) or NO(3)(-), and with or without P added at either 0.6 or 4 kg P ha(-1) yr(-1). *Nitrogen enrichment increased thallus N concentration, N : P mass ratio and phosphomonoesterase (PME) activity by factors of up to 1.3, 1.4 and 1.7, respectively, effects being independent of N form. Phosphomonoesterase activity was tightly related to thallus N : P ratio with additions of P at 4 kg ha(-1) yr(-1) depressing PME activity by a factor of 0.4. *Nitrogen enrichment induces P-limitation in C. portentosa with attendant changes in chemical and physiological characteristics that could be used as sensitive biomarkers with which to detect low levels of N pollution
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Phosphorus
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|a 27YLU75U4W
|2 NLM
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|a Phosphoric Monoester Hydrolases
|2 NLM
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|a EC 3.1.3.2
|2 NLM
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|a Nitrogen
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|a N762921K75
|2 NLM
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|a Minnullina, G
|e verfasserin
|4 aut
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|a Sheppard, L J
|e verfasserin
|4 aut
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|a Leith, I D
|e verfasserin
|4 aut
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|a Crittenden, P D
|e verfasserin
|4 aut
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|i Enthalten in
|t The New phytologist
|d 1979
|g 186(2010), 4 vom: 01. Juni, Seite 926-933
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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|g volume:186
|g year:2010
|g number:4
|g day:01
|g month:06
|g pages:926-933
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