Organic and inorganic nitrogen uptake by 21 dominant tree species in temperate and tropical forests.
Identifieur interne : 000C88 ( Main/Corpus ); précédent : 000C87; suivant : 000C89Organic and inorganic nitrogen uptake by 21 dominant tree species in temperate and tropical forests.
Auteurs : Min Liu ; Changcheng Li ; Xingliang Xu ; Wolfgang Wanek ; Ning Jiang ; Huimin Wang ; Xiaodong YangSource :
- Tree physiology [ 1758-4469 ] ; 2017.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Ammonium Compounds, Nitrates.
- metabolism : Trees.
- physiology : Mycorrhizae.
- China, Climate, Forests.
Abstract
Evidence shows that many tree species can take up organic nitrogen (N) in the form of free amino acids from soils, but few studies have been conducted to compare organic and inorganic N uptake patterns in temperate and tropical tree species in relation to mycorrhizal status and successional state. We labeled intact tree roots by brief 15N exposures using field hydroponic experiments in a temperate forest and a tropical forest in China. A total of 21 dominant tree species were investigated, 8 in the temperate forest and 13 in the tropical forest. All investigated tree species showed highest uptake rates for NH4+ (ammonium), followed by glycine and NO3- (nitrate). Uptake of NH4+ by temperate trees averaged 12.8 μg N g-1 dry weight (d.w.) root h-1, while those by tropical trees averaged 6.8 μg N g-1 d.w. root h-1. Glycine uptake rates averaged 3.1 μg N g-1 d.w. root h-1 for temperate trees and 2.4 μg N g-1 d.w. root h-1 for tropical trees. NO3- uptake was the lowest (averaging 0.8 μg N g-1 d.w. root h-1 for temperate trees and 1.2 μg N g-1 d.w. root h-1 for tropical trees). Uptake of NH4+ accounted for 76% of the total uptake of all three N forms in the temperate forest and 64% in the tropical forest. Temperate tree species had similar glycine uptake rates as tropical trees, with the contribution being slightly lower (20% in the temperate forest and 23% in the tropical forest). All tree species investigated in the temperate forest were ectomycorrhizal and all species but one in the tropical forest were arbuscular mycorrhizal (AM). Ectomycorrhizal trees showed significantly higher NH4+ and lower NO3- uptake rates than AM trees. Mycorrhizal colonization rates significantly affected uptake rates and contributions of NO3- or NH4+, but depended on forest types. We conclude that tree species in both temperate and tropical forests preferred to take up NH4+, with organic N as the second most important N source. These findings suggest that temperate and tropical forests demonstrate similar N uptake patterns although they differ in physiology of trees and soil biogeochemical processes.
DOI: 10.1093/treephys/tpx046
PubMed: 28482109
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pubmed:28482109Le document en format XML
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Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China.</nlm:affiliation></affiliation></author><author><name sortKey="Xu, Xingliang" sort="Xu, Xingliang" uniqKey="Xu X" first="Xingliang" last="Xu">Xingliang Xu</name><affiliation><nlm:affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wanek, Wolfgang" sort="Wanek, Wolfgang" uniqKey="Wanek W" first="Wolfgang" last="Wanek">Wolfgang Wanek</name><affiliation><nlm:affiliation>Department of Microbiology and Ecosystem Science, Division of Terrestrial Ecosystem Research, Research Network 'Chemistry meets Microbiology', University of Vienna, Althanstrasse 14, A-1090 Wien, Austria.</nlm:affiliation></affiliation></author><author><name sortKey="Jiang, Ning" sort="Jiang, Ning" uniqKey="Jiang N" first="Ning" last="Jiang">Ning Jiang</name><affiliation><nlm:affiliation>The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wang, Huimin" sort="Wang, Huimin" uniqKey="Wang H" first="Huimin" last="Wang">Huimin Wang</name><affiliation><nlm:affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences 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China.</nlm:affiliation></affiliation></author><author><name sortKey="Li, Changcheng" sort="Li, Changcheng" uniqKey="Li C" first="Changcheng" last="Li">Changcheng Li</name><affiliation><nlm:affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China.</nlm:affiliation></affiliation></author><author><name sortKey="Xu, Xingliang" sort="Xu, Xingliang" uniqKey="Xu X" first="Xingliang" last="Xu">Xingliang Xu</name><affiliation><nlm:affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wanek, Wolfgang" sort="Wanek, Wolfgang" uniqKey="Wanek W" first="Wolfgang" last="Wanek">Wolfgang Wanek</name><affiliation><nlm:affiliation>Department of Microbiology and Ecosystem Science, Division of Terrestrial Ecosystem Research, Research Network 'Chemistry meets Microbiology', University of Vienna, Althanstrasse 14, A-1090 Wien, Austria.</nlm:affiliation></affiliation></author><author><name sortKey="Jiang, Ning" sort="Jiang, Ning" uniqKey="Jiang N" first="Ning" last="Jiang">Ning Jiang</name><affiliation><nlm:affiliation>The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wang, Huimin" sort="Wang, Huimin" uniqKey="Wang H" first="Huimin" last="Wang">Huimin Wang</name><affiliation><nlm:affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Jiangxi Key Laboratory of Ecosystem Processes and Information, Ji'an, 343725, China.</nlm:affiliation></affiliation></author><author><name sortKey="Yang, Xiaodong" sort="Yang, Xiaodong" uniqKey="Yang X" first="Xiaodong" last="Yang">Xiaodong Yang</name><affiliation><nlm:affiliation>Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonium Compounds (metabolism)</term><term>China (MeSH)</term><term>Climate (MeSH)</term><term>Forests (MeSH)</term><term>Mycorrhizae (physiology)</term><term>Nitrates (metabolism)</term><term>Trees (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Ammonium Compounds</term><term>Nitrates</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Trees</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>China</term><term>Climate</term><term>Forests</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Evidence shows that many tree species can take up organic nitrogen (N) in the form of free amino acids from soils, but few studies have been conducted to compare organic and inorganic N uptake patterns in temperate and tropical tree species in relation to mycorrhizal status and successional state. We labeled intact tree roots by brief 15N exposures using field hydroponic experiments in a temperate forest and a tropical forest in China. A total of 21 dominant tree species were investigated, 8 in the temperate forest and 13 in the tropical forest. All investigated tree species showed highest uptake rates for NH4+ (ammonium), followed by glycine and NO3- (nitrate). Uptake of NH4+ by temperate trees averaged 12.8 μg N g-1 dry weight (d.w.) root h-1, while those by tropical trees averaged 6.8 μg N g-1 d.w. root h-1. Glycine uptake rates averaged 3.1 μg N g-1 d.w. root h-1 for temperate trees and 2.4 μg N g-1 d.w. root h-1 for tropical trees. NO3- uptake was the lowest (averaging 0.8 μg N g-1 d.w. root h-1 for temperate trees and 1.2 μg N g-1 d.w. root h-1 for tropical trees). Uptake of NH4+ accounted for 76% of the total uptake of all three N forms in the temperate forest and 64% in the tropical forest. Temperate tree species had similar glycine uptake rates as tropical trees, with the contribution being slightly lower (20% in the temperate forest and 23% in the tropical forest). All tree species investigated in the temperate forest were ectomycorrhizal and all species but one in the tropical forest were arbuscular mycorrhizal (AM). Ectomycorrhizal trees showed significantly higher NH4+ and lower NO3- uptake rates than AM trees. Mycorrhizal colonization rates significantly affected uptake rates and contributions of NO3- or NH4+, but depended on forest types. We conclude that tree species in both temperate and tropical forests preferred to take up NH4+, with organic N as the second most important N source. These findings suggest that temperate and tropical forests demonstrate similar N uptake patterns although they differ in physiology of trees and soil biogeochemical processes.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28482109</PMID><DateCompleted><Year>2018</Year><Month>06</Month><Day>18</Day></DateCompleted><DateRevised><Year>2018</Year><Month>06</Month><Day>19</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>37</Volume><Issue>11</Issue><PubDate><Year>2017</Year><Month>11</Month><Day>01</Day></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Organic and inorganic nitrogen uptake by 21 dominant tree species in temperate and tropical forests.</ArticleTitle><Pagination><MedlinePgn>1515-1526</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpx046</ELocationID><Abstract><AbstractText>Evidence shows that many tree species can take up organic nitrogen (N) in the form of free amino acids from soils, but few studies have been conducted to compare organic and inorganic N uptake patterns in temperate and tropical tree species in relation to mycorrhizal status and successional state. We labeled intact tree roots by brief 15N exposures using field hydroponic experiments in a temperate forest and a tropical forest in China. A total of 21 dominant tree species were investigated, 8 in the temperate forest and 13 in the tropical forest. All investigated tree species showed highest uptake rates for NH4+ (ammonium), followed by glycine and NO3- (nitrate). Uptake of NH4+ by temperate trees averaged 12.8 μg N g-1 dry weight (d.w.) root h-1, while those by tropical trees averaged 6.8 μg N g-1 d.w. root h-1. Glycine uptake rates averaged 3.1 μg N g-1 d.w. root h-1 for temperate trees and 2.4 μg N g-1 d.w. root h-1 for tropical trees. NO3- uptake was the lowest (averaging 0.8 μg N g-1 d.w. root h-1 for temperate trees and 1.2 μg N g-1 d.w. root h-1 for tropical trees). Uptake of NH4+ accounted for 76% of the total uptake of all three N forms in the temperate forest and 64% in the tropical forest. Temperate tree species had similar glycine uptake rates as tropical trees, with the contribution being slightly lower (20% in the temperate forest and 23% in the tropical forest). All tree species investigated in the temperate forest were ectomycorrhizal and all species but one in the tropical forest were arbuscular mycorrhizal (AM). Ectomycorrhizal trees showed significantly higher NH4+ and lower NO3- uptake rates than AM trees. Mycorrhizal colonization rates significantly affected uptake rates and contributions of NO3- or NH4+, but depended on forest types. We conclude that tree species in both temperate and tropical forests preferred to take up NH4+, with organic N as the second most important N source. These findings suggest that temperate and tropical forests demonstrate similar N uptake patterns although they differ in physiology of trees and soil biogeochemical processes.</AbstractText><CopyrightInformation>© The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Min</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Changcheng</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Xingliang</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wanek</LastName><ForeName>Wolfgang</ForeName><Initials>W</Initials><AffiliationInfo><Affiliation>Department of Microbiology and Ecosystem Science, Division of Terrestrial Ecosystem Research, Research Network 'Chemistry meets Microbiology', University of Vienna, Althanstrasse 14, A-1090 Wien, Austria.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jiang</LastName><ForeName>Ning</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing 100083, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Huimin</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>College of Resources and Environment, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Jiangxi Key Laboratory of Ecosystem Processes and Information, Ji'an, 343725, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yang</LastName><ForeName>Xiaodong</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>Key Laboratory of Tropical Forest Ecology of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D064751">Ammonium Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D009566">Nitrates</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D064751" MajorTopicYN="N">Ammonium Compounds</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002681" MajorTopicYN="N">China</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002980" MajorTopicYN="Y">Climate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D065928" MajorTopicYN="Y">Forests</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009566" MajorTopicYN="N">Nitrates</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">AM fungi</Keyword><Keyword MajorTopicYN="Y">ECM fungi</Keyword><Keyword MajorTopicYN="Y">inorganic N</Keyword><Keyword MajorTopicYN="Y">organic N</Keyword><Keyword MajorTopicYN="Y">root nitrogen uptake</Keyword><Keyword MajorTopicYN="Y">temperate forest</Keyword><Keyword MajorTopicYN="Y">tropical forest</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>10</Month><Day>19</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2017</Year><Month>04</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>5</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>6</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>5</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28482109</ArticleId><ArticleId IdType="pii">3803437</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpx046</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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