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Titolo:
Plant ferritin accumulates in response to photoinhibition but its ectopic overexpression does not protect against photoinhibition
Autore:
Murgia, I; Briat, JF; Tarantino, D; Soave, C;
Indirizzi:
Univ Milan, Dipartimento Biol, Sez Fisiol & Biochim Piante, I-20133 Milan,Italy Univ Milan Milan Italy I-20133 iol & Biochim Piante, I-20133 Milan,Italy CNRS, F-34060 Montpellier 1, France CNRS Montpellier France 1CNRS, F-34060 Montpellier 1, France
Titolo Testata:
PLANT PHYSIOLOGY AND BIOCHEMISTRY
fascicolo: 9, volume: 39, anno: 2001,
pagine: 797 - 805
SICI:
0981-9428(200109)39:9<797:PFAIRT>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEFICIENT ARABIDOPSIS MUTANT; SUPEROXIDE-DISMUTASE; MAIZE FERRITIN; MESSENGER-RNA; ABSCISIC-ACID; CHLOROPHYLL FLUORESCENCE; ELECTRON-TRANSPORT; TRANSGENIC TOBACCO; OXIDATIVE STRESS; D1 PROTEIN;
Keywords:
Arabidopsis thaliana; ferritin; iron; Nicotiana tabacum; photoinhibition; oxidative stress; ozone;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Murgia, I Univ Milan, Dipartimento Biol, Sez Fisiol & Biochim Piante, Via Celoria 26, I-20133 Milan, Italy Univ Milan Via Celoria 26 Milan Italy I-20133 0133 Milan, Italy
Citazione:
I. Murgia et al., "Plant ferritin accumulates in response to photoinhibition but its ectopic overexpression does not protect against photoinhibition", PL PHYS BIO, 39(9), 2001, pp. 797-805

Abstract

Ferritin is an iron storage protein, involved in iron homeostasis in plantand animal cells. Ferritin could play an important role in protecting cells against the most noxious ROS known, the hydroxyl radicals, whose production is catalysed by Fe(II) and Fe(III). An increased ferritin mRNA abundancewas observed in Arabidopsis thaliana leaves photoinhibited with high lightat room temperature and also in leaves of A. thaliana plants fumigated with ozone. Very low protein accumulation followed mRNA accumulation in photoinhibited samples. We then investigated the role played by ferritin during photoinhibition or ozone treatment in Nicotiana tabacum and we showed that tobacco lines overexpressing a soybean ferritin gene were not more protectedfrom oxidative stress than the control line. Indeed, at moderate light andchilling temperature, the line overexpressing ferritin in the chloroplast is more affected by a photoinhibitory treatment than its control line and its recovery from stress is impaired. (C) 2001 Editions scientifiques et medicales Elsevier SAS.

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Documento generato il 23/09/20 alle ore 11:43:34