THE 75-DEGREES-C THERMOLUMINESCENCE BAND OF GREEN TISSUES - CHEMILUMINESCENCE FROM MEMBRANE-CHLOROPHYLL INTERACTION

被引：52

作者：

HIDEG, E

VASS, I

机构：

[1] Institute of Plant Physiology, Biological Research Center, Hungarian Academy of Sciences, Szeged, H-6701, Temcsvári krt. 62

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1993年 / 58卷 / 02期

关键词：

D O I：

10.1111/j.1751-1097.1993.tb09562.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Exposure of thylakoid membranes of green plants to high temperature promotes the appearance of free radicals resulting in a thermoluminescence (TL) band peaking around 75-degrees-C. The occurrence of this band with the same intensity in preilluminated and in dark-adapted samples demonstrates that, contrary to several other TL bands, it is not a result of charge recombination. The high temperature TL band is oxygen dependent. Parallel to TL emission singlet oxygen is formed, as demonstrated by spin trapping EPR measurements and by the decrease of TL intensity in the presence of sodium-azide, a singlet oxygen scavenger. We suggest that the 75-degrees-C TL band is a result of a temperature-enhanced interaction between molecular oxygen and the photosynthetic membrane, possibly involving lipid peroxidation. The spectral maximum of the emission (around 720 nm) implies thai light emission occurs upon energy transfer from an excited product to chlorophyll molecules destablized from pigment-protein complexes.

引用

页码：280 / 283

页数：4

共 44 条

[1] PHOTOSYNTHETIC ACCLIMATION TO TEMPERATURE IN DESERT SHRUB, LARREA-DIVARICATA .2. LIGHT-HARVESTING EFFICIENCY AND ELECTRON-TRANSPORT [J].

ARMOND, PA ;

SCHREIBER, U ;

BJORKMAN, O .

PLANT PHYSIOLOGY, 1978, 61 (03) :411-415

[2]

ARNOLD W, 1965, P NATL ACAD SCI USA, V43, P105

[3] COPPER ENZYMES IN ISOLATED CHLOROPLASTS - POLYPHENOLOXIDASE IN BETA-VULGARIS [J].

ARNON, DI .

PLANT PHYSIOLOGY, 1949, 24 (01) :1-15

[4]

ASADA K, 1987, TOPICS PHOTOSYNTHESI, V9, P227

[5]

AUGUSTO O, 1974, PHOTOCHEM PHOTOBIOL, V30, P191

[6] HEAT-INDUCED ALTERATIONS IN THE PHOTOSYNTHETIC ELECTRON-TRANSPORT AND EMISSION PROPERTIES OF THE CYANOBACTERIUM SPIRULINA-PLATENSIS [J].

BABU, TS ;

SABAT, SC ;

MOHANTY, P .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 1992, 12 (02) :161-171

[7] PHOTOSYNTHETIC RESPONSE AND ADAPTATION TO TEMPERATURE IN HIGHER-PLANTS [J].

BERRY, J ;

BJORKMAN, O .

ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1980, 31 :491-543

[8] CHLOROPHYLL - AN EFFICIENT DETECTOR OF ELECTRONICALLY EXCITED SPECIES IN BIOCHEMICAL SYSTEMS [J].

BOHNE, C ;

CAMPA, A ;

CILENTO, G ;

NASSI, L ;

VILLABLANCA, M .

ANALYTICAL BIOCHEMISTRY, 1986, 155 (01) :1-9

[9] STRUCTURE AND FUNCTION OF CAROTENOIDS IN PHOTOREACTION CENTER FROM RHODOSPIRILLUM-RUBRUM [J].

BOUCHER, F ;

VANDERREST, M ;

GINGRAS, G .

BIOCHIMICA ET BIOPHYSICA ACTA, 1977, 461 (03) :339-357

[10] ENERGY-TRANSFER FROM ENZYMICALLY-GENERATED TRIPLET SPECIES TO ACCEPTORS IN MICELLES [J].

BRUNETTI, IL ;

CILENTO, G ;

NASSI, L .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1983, 38 (05) :511-519

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