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000009585 084__ $$2WoS$$aPlant Sciences
000009585 1001_ $$0P:(DE-Juel1)129379$$aPieruschka, R.$$b0$$uFZJ
000009585 245__ $$aMonitoring of cold and light stress impact on photosynthesis by using the laser induced fluorescence transient (LIFT) approach
000009585 260__ $$aCollingwood, Victoria$$bCSIRO Publ.$$c2010
000009585 300__ $$a395 - 402
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000009585 440_0 $$09141$$aFunctional Plant Biology$$v37$$x1445-4408$$y5
000009585 500__ $$aBarry Osmond and Uwe Rascher played an important role in initiating this project and provided many helpful comments. We are very grateful to Larry Giles and Todd Tobeck for valuable help in performing the experiments. RP was supported by Marie Curie Outgoing International Fellowships (Nr: 041060 - LIFT).
000009585 520__ $$aChlorophyll fluorescence measurements have been widely applied to quantify the photosynthetic efficiency of plants non-destructively. The most commonly used pulse amplitude modulated (PAM) technique provides a saturating light pulse, which is not practical at the canopy scale. We report here on a recently developed technique, laser induced fluorescence transient (LIFT), which is capable of remotely measuring the photosynthetic efficiency of selected leaves at a distance of up to 50 m. The LIFT approach correlated well with gas exchange measurements under laboratory conditions and was tested in a field experiment monitoring the combined effect of low temperatures and high light intensity on a variety of plants during the early winter in California. We observed a reduction in maximum and effective quantum yield in electron transport for Capsicum annuum L., Lycopersicon esculentum L. and Persea americana Mill. as the temperatures fell, while a grass community was not affected by combined low temperature and high light stress. The ability to make continuous, automatic and remote measurements of the photosynthetic efficiency of leaves with the LIFT system provides a new approach for studying and monitoring of stress effects on the canopy scale.
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000009585 65320 $$2Author$$achilling stress
000009585 65320 $$2Author$$achlorophyll fluorescence
000009585 65320 $$2Author$$aelectron transport rate
000009585 65320 $$2Author$$aevergreen plant
000009585 65320 $$2Author$$apepper
000009585 65320 $$2Author$$aPSII efficiency
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000009585 7001_ $$0P:(DE-HGF)0$$aKlimov, D.$$b1
000009585 7001_ $$0P:(DE-HGF)0$$aKolber, S.K.$$b2
000009585 7001_ $$0P:(DE-HGF)0$$aBerry, J.A.$$b3
000009585 773__ $$0PERI:(DE-600)1496158-1$$a10.1071/FP09266$$gVol. 37, p. 395 - 402$$p395 - 402$$q37<395 - 402$$tFunctional plant biology$$v37$$x1445-4408$$y2010
000009585 8567_ $$uhttp://dx.doi.org/10.1071/FP09266
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