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231222s2002 xx ||||| 00| ||eng c |
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a del Hierro, Andrés Miguel
|e verfasserin
|4 aut
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|a A new method to determine the oxygen concentration inside the sapwood of trees
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|c 2002
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 29.05.2002
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|a Date Revised 13.05.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Research into the short-term fluctuations of oxygen concentrations in tree stems has been hampered by the difficulty of measuring oxygen inside tissues. A new method, which is based on fluorescence quenching of a ruthenium complex in the presence of oxygen, has been applied to measure changes of oxygen concentration in the sapwood of trees. During a field day-course oxygen increased with the radiation load and fell during the night (in Fagus orientalis from 20.3% in the afternoon to 17.5% in the morning next day). In a greenhouse experiment the sapwood oxygen concentration of Laurus nobilis could be influenced by flooding the root system. The very fast response, high resolution (better than 0.1%), easy calibration, and dependence only on oxygen and temperature make the technique well suited for measurements of oxygen concentrations in the sapwood
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Oxygen
|2 NLM
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| 650 |
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|a S88TT14065
|2 NLM
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| 700 |
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|a Kronberger, Winfried
|e verfasserin
|4 aut
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|a Hietz, Peter
|e verfasserin
|4 aut
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|a Offenthaler, Ivo
|e verfasserin
|4 aut
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| 700 |
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|a Richter, Hanno
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 53(2002), 368 vom: 26. März, Seite 559-63
|w (DE-627)NLM098182706
|x 0022-0957
|7 nnns
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| 773 |
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|g volume:53
|g year:2002
|g number:368
|g day:26
|g month:03
|g pages:559-63
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|a AR
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|d 53
|j 2002
|e 368
|b 26
|c 03
|h 559-63
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