Relationship of ion absorption to growth rate in taiga trees.
Identifieur interne : 004D76 ( Main/Exploration ); précédent : 004D75; suivant : 004D77Relationship of ion absorption to growth rate in taiga trees.
Auteurs : F Stuart Chapin [États-Unis] ; Keith Van Cleve [États-Unis] ; Peter R. Tryon [États-Unis]Source :
- Oecologia [ 1432-1939 ] ; 1986.
Abstract
Rates of nutrient absorption were measured on excised roots of taiga tree seedlings grown in the laboratory. Phosphate and to a lesser extent ammonium (relatively immobile ions in the soil) were absorbed most rapidly by poplar and aspen, two species with rapid growth rates and most slowly by alder and/or black spruce, species with slow growth rates. In contrast, potassium (which is more mobile in soil) was absorbed most rapidly by slowly growing species. All species had low rates of nitrate and chloride absorption. Absorption rate of each ion was most temperature sensitive in those species that typically occupy the warmest soils (i.e. poplar and aspen). We suggest that in infertile soils a high capacity for uptake is an important component of root competition only in the case of mobile ions (e.g. potassium, nitrate), because only for these ions do diffusion shells of adjacent roots overlap; in contrast plants compete for immobile ions (e.g. phosphate) only by increasing absorptive surface via root growth or mycorrhizal association.
DOI: 10.1007/BF00377628
PubMed: 28311365
Affiliations:
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Tryon</name><affiliation wicri:level="2"><nlm:affiliation>Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK</wicri:regionArea><placeName><region type="state">Alaska</region></placeName></affiliation></author></analytic><series><title level="j">Oecologia</title><idno type="eISSN">1432-1939</idno><imprint><date when="1986" type="published">1986</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Rates of nutrient absorption were measured on excised roots of taiga tree seedlings grown in the laboratory. Phosphate and to a lesser extent ammonium (relatively immobile ions in the soil) were absorbed most rapidly by poplar and aspen, two species with rapid growth rates and most slowly by alder and/or black spruce, species with slow growth rates. In contrast, potassium (which is more mobile in soil) was absorbed most rapidly by slowly growing species. All species had low rates of nitrate and chloride absorption. Absorption rate of each ion was most temperature sensitive in those species that typically occupy the warmest soils (i.e. poplar and aspen). We suggest that in infertile soils a high capacity for uptake is an important component of root competition only in the case of mobile ions (e.g. potassium, nitrate), because only for these ions do diffusion shells of adjacent roots overlap; in contrast plants compete for immobile ions (e.g. phosphate) only by increasing absorptive surface via root growth or mycorrhizal association.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">28311365</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1432-1939</ISSN><JournalIssue CitedMedium="Internet"><Volume>69</Volume><Issue>2</Issue><PubDate><Year>1986</Year><Month>May</Month></PubDate></JournalIssue><Title>Oecologia</Title><ISOAbbreviation>Oecologia</ISOAbbreviation></Journal><ArticleTitle>Relationship of ion absorption to growth rate in taiga trees.</ArticleTitle><Pagination><MedlinePgn>238-242</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/BF00377628</ELocationID><Abstract><AbstractText>Rates of nutrient absorption were measured on excised roots of taiga tree seedlings grown in the laboratory. Phosphate and to a lesser extent ammonium (relatively immobile ions in the soil) were absorbed most rapidly by poplar and aspen, two species with rapid growth rates and most slowly by alder and/or black spruce, species with slow growth rates. In contrast, potassium (which is more mobile in soil) was absorbed most rapidly by slowly growing species. All species had low rates of nitrate and chloride absorption. Absorption rate of each ion was most temperature sensitive in those species that typically occupy the warmest soils (i.e. poplar and aspen). We suggest that in infertile soils a high capacity for uptake is an important component of root competition only in the case of mobile ions (e.g. potassium, nitrate), because only for these ions do diffusion shells of adjacent roots overlap; in contrast plants compete for immobile ions (e.g. phosphate) only by increasing absorptive surface via root growth or mycorrhizal association.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chapin</LastName><ForeName>F Stuart</ForeName><Initials>FS</Initials><Suffix>3rd</Suffix><AffiliationInfo><Affiliation>Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Van Cleve</LastName><ForeName>Keith</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Tryon</LastName><ForeName>Peter R</ForeName><Initials>PR</Initials><AffiliationInfo><Affiliation>Institute of Arctic Biology, University of Alaska, 99775, Fairbanks, AK, USA.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Oecologia</MedlineTA><NlmUniqueID>0150372</NlmUniqueID><ISSNLinking>0029-8549</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>1985</Year><Month>04</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>3</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>1986</Year><Month>5</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1986</Year><Month>5</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28311365</ArticleId><ArticleId IdType="doi">10.1007/BF00377628</ArticleId><ArticleId IdType="pii">10.1007/BF00377628</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Plant Physiol. 1980 Jan;65(1):160-4</Citation><ArticleIdList><ArticleId IdType="pubmed">16661134</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1981 Nov;68(5):1064-7</Citation><ArticleIdList><ArticleId IdType="pubmed">16662052</ArticleId></ArticleIdList></Reference><Reference><Citation>Int J Appl Radiat Isot. 1974 Dec;25(11-12):568-70</Citation><ArticleIdList><ArticleId IdType="pubmed">4443103</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Alaska</li></region></list><tree><country name="États-Unis"><region name="Alaska"><name sortKey="Chapin, F Stuart" sort="Chapin, F Stuart" uniqKey="Chapin F" first="F Stuart" last="Chapin">F Stuart Chapin</name></region><name sortKey="Tryon, Peter R" sort="Tryon, Peter R" uniqKey="Tryon P" first="Peter R" last="Tryon">Peter R. Tryon</name><name sortKey="Van Cleve, Keith" sort="Van Cleve, Keith" uniqKey="Van Cleve K" first="Keith" last="Van Cleve">Keith Van Cleve</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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