Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation
Mineralization of specifically labeled 14 C-cellulose- and 14 C-lignin-labeled lignocelluloses by Toolik Lake, Alaska, sediments was examined in response to manipulation of various environmental factors. Mineralization was measured by quantifying the amount of labeled CO 2 released from the specific...
Published in: | Applied and Environmental Microbiology |
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Language: | English |
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American Society for Microbiology
1980
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Online Access: | http://dx.doi.org/10.1128/aem.40.1.32-39.1980 https://journals.asm.org/doi/pdf/10.1128/aem.40.1.32-39.1980 |
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crasmicro:10.1128/aem.40.1.32-39.1980 2023-10-09T21:49:14+02:00 Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation Federle, Thomas W. Vestal, J. Robie 1980 http://dx.doi.org/10.1128/aem.40.1.32-39.1980 https://journals.asm.org/doi/pdf/10.1128/aem.40.1.32-39.1980 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 40, issue 1, page 32-39 ISSN 0099-2240 1098-5336 Ecology Applied Microbiology and Biotechnology Food Science Biotechnology journal-article 1980 crasmicro https://doi.org/10.1128/aem.40.1.32-39.1980 2023-09-15T05:47:14Z Mineralization of specifically labeled 14 C-cellulose- and 14 C-lignin-labeled lignocelluloses by Toolik Lake, Alaska, sediments was examined in response to manipulation of various environmental factors. Mineralization was measured by quantifying the amount of labeled CO 2 released from the specifically labeled substrates. Nitrogen (NH 4 NO 3 ) and, to a greater degree, phosphorus (PO 4 −3 ) additions enhanced the mineralization of white pine ( Pinus strobus ) cellulose during the summer of 1978. Nitrogen and phosphorus together had no cumulative effect. During the summer of 1979, nitrogen or phosphorus alone had only a slight stimulatory effect on the mineralization of a sedge ( Carex aquatilis ) cellulose; however, together, they had a dramatic effect. This variable response of mineralization to nutrient addition between 1978 and 1979 was probably attributable to year-to-year variation in nutrient availability within the lake. Cellobiose addition and oxygen depletion inhibited the amount of pine cellulose mineralized. Whereas addition of nitrogen to oxygen-depleted treatments had limited effect, addition of phosphorus resulted in mineralizations equal to or greater than that of the controls. Nitrogen had no effect on mineralization of pine or Carex lignins. Phosphorus, however, inhibited mineralization of both lignins. With Carex lignin, the phosphorus inhibition occurred at a concentration as low as 0.1 μM. The antagonistic role of phosphorus in cellulose and lignin mineralizations may be of significance in understanding the increased proportion of lignin relative to cellulose in decomposing litter. Article in Journal/Newspaper Arctic Carex aquatilis Alaska ASM Journals (American Society for Microbiology - via Crossref) Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Applied and Environmental Microbiology 40 1 32 39 |
institution |
Open Polar |
collection |
ASM Journals (American Society for Microbiology - via Crossref) |
op_collection_id |
crasmicro |
language |
English |
topic |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology |
spellingShingle |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology Federle, Thomas W. Vestal, J. Robie Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation |
topic_facet |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology |
description |
Mineralization of specifically labeled 14 C-cellulose- and 14 C-lignin-labeled lignocelluloses by Toolik Lake, Alaska, sediments was examined in response to manipulation of various environmental factors. Mineralization was measured by quantifying the amount of labeled CO 2 released from the specifically labeled substrates. Nitrogen (NH 4 NO 3 ) and, to a greater degree, phosphorus (PO 4 −3 ) additions enhanced the mineralization of white pine ( Pinus strobus ) cellulose during the summer of 1978. Nitrogen and phosphorus together had no cumulative effect. During the summer of 1979, nitrogen or phosphorus alone had only a slight stimulatory effect on the mineralization of a sedge ( Carex aquatilis ) cellulose; however, together, they had a dramatic effect. This variable response of mineralization to nutrient addition between 1978 and 1979 was probably attributable to year-to-year variation in nutrient availability within the lake. Cellobiose addition and oxygen depletion inhibited the amount of pine cellulose mineralized. Whereas addition of nitrogen to oxygen-depleted treatments had limited effect, addition of phosphorus resulted in mineralizations equal to or greater than that of the controls. Nitrogen had no effect on mineralization of pine or Carex lignins. Phosphorus, however, inhibited mineralization of both lignins. With Carex lignin, the phosphorus inhibition occurred at a concentration as low as 0.1 μM. The antagonistic role of phosphorus in cellulose and lignin mineralizations may be of significance in understanding the increased proportion of lignin relative to cellulose in decomposing litter. |
format |
Article in Journal/Newspaper |
author |
Federle, Thomas W. Vestal, J. Robie |
author_facet |
Federle, Thomas W. Vestal, J. Robie |
author_sort |
Federle, Thomas W. |
title |
Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation |
title_short |
Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation |
title_full |
Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation |
title_fullStr |
Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation |
title_full_unstemmed |
Lignocellulose Mineralization by Arctic Lake Sediments in Response to Nutrient Manipulation |
title_sort |
lignocellulose mineralization by arctic lake sediments in response to nutrient manipulation |
publisher |
American Society for Microbiology |
publishDate |
1980 |
url |
http://dx.doi.org/10.1128/aem.40.1.32-39.1980 https://journals.asm.org/doi/pdf/10.1128/aem.40.1.32-39.1980 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic Carex aquatilis Alaska |
genre_facet |
Arctic Carex aquatilis Alaska |
op_source |
Applied and Environmental Microbiology volume 40, issue 1, page 32-39 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.40.1.32-39.1980 |
container_title |
Applied and Environmental Microbiology |
container_volume |
40 |
container_issue |
1 |
container_start_page |
32 |
op_container_end_page |
39 |
_version_ |
1779312256005177344 |