001     52636
005     20180211185945.0
024 7 _ |2 pmid
|a pmid:16820393
024 7 _ |2 DOI
|a 10.1093/jxb/erl003
024 7 _ |2 WOS
|a WOS:000239901500009
037 _ _ |a PreJuSER-52636
041 _ _ |a eng
082 _ _ |a 580
084 _ _ |2 WoS
|a Plant Sciences
100 1 _ |a Jahnke, S.
|b 0
|u FZJ
|0 P:(DE-Juel1)129336
245 _ _ |a Air pressure in clamp-on leaf chambers: a neglected issue in gas exchange measurements
260 _ _ |a Oxford
|b Univ. Press
|c 2006
300 _ _ |a 2553 - 2561
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Journal of Experimental Botany
|x 0022-0957
|0 3318
|y 11
|v 57
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Air pressure in leaf chambers is thought to affect gas exchange measurements through changes in partial pressure of the air components. However, other effects may come into play when homobaric leaves are measured in which internal lateral gas flow may occur. When there was no pressure difference between the leaf chamber and ambient air (DeltaP=0), it was found in previous work that lateral CO(2) diffusion could affect measurements performed with clamp-on leaf chambers. On the other hand, overpressure (DeltaP>0) in leaf chambers has been reported to minimize artefacts possibly caused by leaks in chamber sealing. In the present work, net CO(2) exchange rates (NCER) were measured under different DeltaP values (0.0-3.0 kPa) on heterobaric and homobaric leaves. In heterobaric leaves which have internal barriers for lateral gas movement, changes in DeltaP had no significant effect on NCER. For homobaric leaves, effects of DeltaP>0 on measured NCER were significant, obviously due to lateral gas flux inside the leaf mesophyll. The magnitude of the effect was largely defined by stomatal conductance; when stomata were widely open, the impact of DeltaP on measured NCER was up to 7 mumol CO(2) m(-2) s(-1) kPa(-1). Since many other factors are also involved, neither DeltaP=0 nor DeltaP>0 was found to be the 'one-size fits all' solution to avoid erroneous effects of lateral gas transport on measurements with clamp-on leaf chambers.
536 _ _ |a Terrestrische Umwelt
|c P24
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK407
|x 0
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Air Pressure
650 _ 2 |2 MeSH
|a Artifacts
650 _ 2 |2 MeSH
|a Botany: instrumentation
650 _ 2 |2 MeSH
|a Botany: methods
650 _ 2 |2 MeSH
|a Botany: standards
650 _ 2 |2 MeSH
|a Carbon Dioxide: chemistry
650 _ 2 |2 MeSH
|a Carbon Dioxide: metabolism
650 _ 2 |2 MeSH
|a Diffusion
650 _ 2 |2 MeSH
|a Photosynthesis
650 _ 2 |2 MeSH
|a Plant Leaves: metabolism
650 _ 2 |2 MeSH
|a Plant Transpiration: physiology
650 _ 7 |0 124-38-9
|2 NLM Chemicals
|a Carbon Dioxide
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a air pressure
653 2 0 |2 Author
|a clamp-on leaf chamber
653 2 0 |2 Author
|a gas exchange measurement
653 2 0 |2 Author
|a homobaric leaves
653 2 0 |2 Author
|a respiration
653 2 0 |2 Author
|a photosynthesis
653 2 0 |2 Author
|a transpiration
700 1 _ |a Pieruschka, R.
|b 1
|u FZJ
|0 P:(DE-Juel1)129379
773 _ _ |a 10.1093/jxb/erl003
|g Vol. 57, p. 2553 - 2561
|p 2553 - 2561
|q 57<2553 - 2561
|0 PERI:(DE-600)1466717-4
|t The @journal of experimental botany
|v 57
|y 2006
|x 0022-0957
909 C O |o oai:juser.fz-juelich.de:52636
|p VDB
913 1 _ |k P24
|v Terrestrische Umwelt
|l Terrestrische Umwelt
|b Erde und Umwelt
|0 G:(DE-Juel1)FUEK407
|x 0
914 1 _ |y 2006
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |k ICG-III
|l Phytosphäre
|d 31.12.2006
|g ICG
|0 I:(DE-Juel1)VDB49
|x 0
970 _ _ |a VDB:(DE-Juel1)82780
980 _ _ |a VDB
980 _ _ |a ConvertedRecord
980 _ _ |a journal
980 _ _ |a I:(DE-Juel1)IBG-2-20101118
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IBG-2-20101118
981 _ _ |a I:(DE-Juel1)ICG-3-20090406


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