Measuring photosynthetic parameters at a distance: laser induced fluorescence transient (LIFT) method for remote measurements of photosynthesis in terrestrial vegetation.
Identifieur interne : 003F91 ( Main/Corpus ); précédent : 003F90; suivant : 003F92Measuring photosynthetic parameters at a distance: laser induced fluorescence transient (LIFT) method for remote measurements of photosynthesis in terrestrial vegetation.
Auteurs : Zbigniew Kolber ; Denis Klimov ; Gennady Ananyev ; Uwe Rascher ; Joseph Berry ; Barry OsmondSource :
- Photosynthesis research [ 0166-8595 ] ; 2005.
English descriptors
- KwdEn :
- MESH :
- metabolism : Plant Leaves, Populus, Quercus.
- physiology : Photosynthesis.
- Fluorescence, Lasers, Light, Photochemistry.
Abstract
We have developed a laser induced fluorescence transient (LIFT) technique and instrumentation to remotely measure photosynthetic properties in terrestrial vegetation at a distance of up to 50 m. The LIFT method uses a 665 nm laser to project a collimated, 100 mm diameter excitation beam onto leaves of the targeted plant. Fluorescence emission at 690 nm is collected by a 250 mm reflective telescope and processed in real time to calculate the efficiency of photosynthetic light utilization, quantum efficiency of PS II, and the kinetics of photosynthetic electron transport. Operating with peak excitation power of 125 W m-2, and duty cycle of 10-50%, the instrument conforms to laser safety regulations. The LIFT instrument is controlled via an Internet connection, allowing it to operate from remote locations or platforms. Here we describe the theoretical basis of the LIFT methodology, and demonstrate its applications in remote measurements of photosynthetic properties in the canopy of cottonwood and oak trees, and in the rosette of Arabidopsis mutants.
DOI: 10.1007/s11120-005-5092-1
PubMed: 16049764
Links to Exploration step
pubmed:16049764Le document en format XML
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<author><name sortKey="Kolber, Zbigniew" sort="Kolber, Zbigniew" uniqKey="Kolber Z" first="Zbigniew" last="Kolber">Zbigniew Kolber</name>
<affiliation><nlm:affiliation>Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, 95039-9644, Moss Landing, California, USA. zkolber@mbari.org</nlm:affiliation>
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<author><name sortKey="Klimov, Denis" sort="Klimov, Denis" uniqKey="Klimov D" first="Denis" last="Klimov">Denis Klimov</name>
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<author><name sortKey="Ananyev, Gennady" sort="Ananyev, Gennady" uniqKey="Ananyev G" first="Gennady" last="Ananyev">Gennady Ananyev</name>
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<author><name sortKey="Rascher, Uwe" sort="Rascher, Uwe" uniqKey="Rascher U" first="Uwe" last="Rascher">Uwe Rascher</name>
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<author><name sortKey="Berry, Joseph" sort="Berry, Joseph" uniqKey="Berry J" first="Joseph" last="Berry">Joseph Berry</name>
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<author><name sortKey="Osmond, Barry" sort="Osmond, Barry" uniqKey="Osmond B" first="Barry" last="Osmond">Barry Osmond</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Measuring photosynthetic parameters at a distance: laser induced fluorescence transient (LIFT) method for remote measurements of photosynthesis in terrestrial vegetation.</title>
<author><name sortKey="Kolber, Zbigniew" sort="Kolber, Zbigniew" uniqKey="Kolber Z" first="Zbigniew" last="Kolber">Zbigniew Kolber</name>
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<author><name sortKey="Ananyev, Gennady" sort="Ananyev, Gennady" uniqKey="Ananyev G" first="Gennady" last="Ananyev">Gennady Ananyev</name>
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<author><name sortKey="Rascher, Uwe" sort="Rascher, Uwe" uniqKey="Rascher U" first="Uwe" last="Rascher">Uwe Rascher</name>
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<author><name sortKey="Berry, Joseph" sort="Berry, Joseph" uniqKey="Berry J" first="Joseph" last="Berry">Joseph Berry</name>
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<series><title level="j">Photosynthesis research</title>
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<term>Lasers (MeSH)</term>
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<term>Photochemistry (MeSH)</term>
<term>Photosynthesis (physiology)</term>
<term>Plant Leaves (metabolism)</term>
<term>Populus (metabolism)</term>
<term>Quercus (metabolism)</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Leaves</term>
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<front><div type="abstract" xml:lang="en">We have developed a laser induced fluorescence transient (LIFT) technique and instrumentation to remotely measure photosynthetic properties in terrestrial vegetation at a distance of up to 50 m. The LIFT method uses a 665 nm laser to project a collimated, 100 mm diameter excitation beam onto leaves of the targeted plant. Fluorescence emission at 690 nm is collected by a 250 mm reflective telescope and processed in real time to calculate the efficiency of photosynthetic light utilization, quantum efficiency of PS II, and the kinetics of photosynthetic electron transport. Operating with peak excitation power of 125 W m-2, and duty cycle of 10-50%, the instrument conforms to laser safety regulations. The LIFT instrument is controlled via an Internet connection, allowing it to operate from remote locations or platforms. Here we describe the theoretical basis of the LIFT methodology, and demonstrate its applications in remote measurements of photosynthetic properties in the canopy of cottonwood and oak trees, and in the rosette of Arabidopsis mutants.</div>
</front>
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<Abstract><AbstractText>We have developed a laser induced fluorescence transient (LIFT) technique and instrumentation to remotely measure photosynthetic properties in terrestrial vegetation at a distance of up to 50 m. The LIFT method uses a 665 nm laser to project a collimated, 100 mm diameter excitation beam onto leaves of the targeted plant. Fluorescence emission at 690 nm is collected by a 250 mm reflective telescope and processed in real time to calculate the efficiency of photosynthetic light utilization, quantum efficiency of PS II, and the kinetics of photosynthetic electron transport. Operating with peak excitation power of 125 W m-2, and duty cycle of 10-50%, the instrument conforms to laser safety regulations. The LIFT instrument is controlled via an Internet connection, allowing it to operate from remote locations or platforms. Here we describe the theoretical basis of the LIFT methodology, and demonstrate its applications in remote measurements of photosynthetic properties in the canopy of cottonwood and oak trees, and in the rosette of Arabidopsis mutants.</AbstractText>
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