Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
THE EFFECTS OF CADMIUM ON PHOTOSYNTHESIS OF PHASEOLUS-VULGARIS - A FLUORESCENCE ANALYSIS
Autore:
KRUPA Z; OQUIST G; HUNER NPA;
Indirizzi:
MARIE CURIE SKLODOWSKA UNIV,DEPT PLANT PHYSIOL,AKAD 19 PL-20033 LUBLIN POLAND UMEA UNIV,DEPT PLANT PHYSIOL S-90187 UMEA SWEDEN UNIV WESTERN ONTARIO,DEPT PLANT SCI LONDON N6A 5B7 ONTARIO CANADA
Titolo Testata:
Physiologia Plantarum
fascicolo: 4, volume: 88, anno: 1993,
pagine: 626 - 630
SICI:
0031-9317(1993)88:4<626:TEOCOP>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
TREATED TOMATO PLANTS; BEET BETA-VULGARIS; RUNNER BEAN-PLANTS; CAJANUS-CAJAN L; CHLOROPHYLL FLUORESCENCE; THYLAKOID MEMBRANES; PHOTOCHEMICAL ACTIVITIES; LEAVES; CHLOROPLASTS; PHYSIOLOGY;
Keywords:
CADMIUM; MODULATED FLUORESCENCE; PHASEOLUS-VULGARIS; PHOTOSYSTEM-II; PRIMARY PHOTOCHEMISTRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
Z. Krupa et al., "THE EFFECTS OF CADMIUM ON PHOTOSYNTHESIS OF PHASEOLUS-VULGARIS - A FLUORESCENCE ANALYSIS", Physiologia Plantarum, 88(4), 1993, pp. 626-630

Abstract

Bean plants (Phaseolus vulgaris L. cv. Scarlett), germinated in darkness for 1 week, were transferred to light (200 mumol m-2 s-1) and cultivated for 1 week in a complete nutrient solution. After this period, cadmium ions in the form of CdSO4 were added at the concentrations of 0, 10, 20 and 50 muM. The effects of this metal on the properties of photosystem II photochemistry were studied by means of modulated fluorescence analysis. Steady state photochemical quenching, non-photochemical quenching and terminal fluorescence were determined in control and cadmium-treated plants. We postulate that, during short term exposure of plants to cadmium in the early stages of growth, the Calvin cycle reactions are more likely than photosystem II to be the primary target of the toxic influence of cadmium. The reduced demand for ATP and NADPH upon Calvin cycle inhibition causes a down-regulation of photosystemII photochemistry and of the yield of linear electron transport.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 15:04:13