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Titolo:
Evidence supporting nitrite-dependent NO release by the green microalga Scenedesmus obliquus
Autore:
Mallick, N; Mohn, FH; Soeder, CJ;
Indirizzi:
KFA Julich GmbH, Forschungszentrum, D-52425 Julich, Germany KFA Julich GmbH Julich Germany D-52425 szentrum, D-52425 Julich, Germany
Titolo Testata:
JOURNAL OF PLANT PHYSIOLOGY
fascicolo: 1, volume: 157, anno: 2000,
pagine: 40 - 46
SICI:
0176-1617(200007)157:1<40:ESNNRB>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXIDE SYNTHASE; ELECTRON-TRANSPORT; REDUCTASE-ACTIVITY; LEAVES; PLANTS; ACCUMULATION;
Keywords:
Scenedesmus; nitric oxide; MSX glyphosate; cycloheximide; pentachloraphenol; anaerobiosis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Mallick, N KFA Julich GmbH, Forschungszentrum, ICG-6, D-52425 Julich, Germany KFA Julich GmbH ICG-6 Julich Germany D-52425 5 Julich, Germany
Citazione:
N. Mallick et al., "Evidence supporting nitrite-dependent NO release by the green microalga Scenedesmus obliquus", J PLANT PHY, 157(1), 2000, pp. 40-46

Abstract

Studies conducted with respiratory electron transport chain inhibitors anduncouplers such as antimycin A, rotenone, 2,4-dinitrophenol, pentachlorophenol and carbonyl cyanide m-chlorophenylhydrazone resulted in sudden NO bursts in Scenedesmus suspensions incubated under dark-aerobic conditions withsupplemented glucose. Anaerobiosis was also found to increase NO production significantly in dark-incubated cells of Scenedesmus. These NO bursts, quite comparable to the usual dight-off, peak (as always appeared after sudden darkening), could be correlated with the increased nitrite concentration under the above-mentioned conditions. Moreover, similar NO bursts concomitant with nitrite accumulation were also observed following supplementation of cycloheximide, MSX, Basta, glutarate and glyphosate. These results therefore support our hypothesis that accumulation of nitrite is the prerequisitefor NO production in the case of the chlorophycean microalga Scenedesmus. A hypothetical model for NO formation is proposed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 09:38:36