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Titolo:
MEASUREMENT OF CHLOROPHYLL FLUORESCENCE BY SYNCHRONOUS DETECTION IN INTEGRATING SPHERE - A MODIFIED ANALYTICAL APPROACH FOR THE ACCURATE DETERMINATION OF PHOTOSYNTHESIS PARAMETERS FOR WHOLE PLANTS
Autore:
SALVETAT R; JUNEAU P; POPOVIC R;
Indirizzi:
UNIV QUEBEC,INST ENVIRONM SCI,DEPT CHIM,TOXEN,CASE POSTALE 8888,SUCCURSALLE CTR VILLE MONTREAL PQ H3C 3P8 CANADA UNIV QUEBEC,INST ENVIRONM SCI,DEPT CHIM,TOXEN MONTREAL PQ H3C 3P8 CANADA
Titolo Testata:
Environmental science & technology
fascicolo: 17, volume: 32, anno: 1998,
pagine: 2640 - 2645
SICI:
0013-936X(1998)32:17<2640:MOCFBS>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTOSYSTEM-II; TEMPERATURE-DEPENDENCE; PEA LEAVES; FLUOROMETER; HETEROGENEITY; CHLOROPLASTS; INDUCTION; FREQUENCY; TOMATO; LIGHT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
R. Salvetat et al., "MEASUREMENT OF CHLOROPHYLL FLUORESCENCE BY SYNCHRONOUS DETECTION IN INTEGRATING SPHERE - A MODIFIED ANALYTICAL APPROACH FOR THE ACCURATE DETERMINATION OF PHOTOSYNTHESIS PARAMETERS FOR WHOLE PLANTS", Environmental science & technology, 32(17), 1998, pp. 2640-2645

Abstract

In photosynthesis research, pulse-amplified modulated (PAM) fluorescence is used to study the chlorophyll fluorescence induction of plants in order to investigate the mechanisms of the energy transfer in photosynthesis and to determine the plant physiological state. However, in many cases the lack of accuracy and reproducibility in measurement introduces some problems in the determination of fluorescence parameters and therefore in their interpretation concerning environmental research domain. In this paper, a new type of modulated fluorometer designed to resolve these problems is presented. An integrating sphere was usedas a measuring chamber associated with a PAM fluorometer system that was originally built in our laboratory. To demonstrate the performanceand the reliability of our measuring system, we presented results of fluorescence measurements of plants that have been exposed to different environmental conditions (ultraviolet-B radiation, low- and high-temperature stress). The advantages of measuring different fluorescence parameters with synchronous detection by this type of PAM system are discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 22:07:14