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The induction of the oxidative burst inElodea densa by sulfhydryl reagents is independent of the inhibiting action of these reagents on photosynthesis

In foglie diElodea densa l’induzione dell ’«oxidative burst» e l’inibizione della fotosintesi da parte di reagenti dei gruppi sulfidrilici sono due fenomeni indipendenti

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Abstract

The sulfhydryl group-reagents NEM (N-ethylmaleimide), p-CMBS (parachloromercurybenzenesulfonate), Ag+ and Cu2+ inhibit very rapidly and drastically photosynthetic O2 evolution inElodea densa leaves. This effect has been compared with that of the same reagents in inducing in non illuminated leaves a strong increase of O2 consumption (oxygen burst), presumably due to activation of some plasma membrane redox systems. The results suggest that the structures and mechanisms involved in induction of the oxidative burst on one hand and in the inhibition of photosynthesis on the other are substantially independent.

Riassunto

Reagenti che modificano i sulfidrili (NEM, p-CMBS, Ag+ e Cu+2) risultano inibire precoeemente e drasticamente la fotosintesi in foglie diElodea densa. Questo effetto è stato confrontato con quello indotto da questi reagenti in foglie non illuminate nell’indurre un forte aumento della respirazione, presumibilmente imputabile all’attivazione di sistemi ossidativi del plasmalemma. I risultati indicano una completa indipendenza nei meccanismi dei due ordini di fenomeni considerati.

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References

  1. A. W. Segal -A. Abo,The biochemical basis of the NADPH oxidase of phagocytes. TIBS, 18, 1993; 43–47.

    CAS  Google Scholar 

  2. A. Novacky - R. N. Goodman, The Hypersensitive Reaction in Plants to Pathogens. APS press, St. Paul, Minnesota, U.S.A., 1994.

  3. S. J. Chanock -J. El Benna -R. M. Smith -B. M. Babior,The respiratory burst oxidase. The Journal of Biological Chemistry, vol. 269, 40, 1994, 24519–24522.

    CAS  Google Scholar 

  4. M. Bellando - S. Sacco - P. Rocco - F. Albergoni, Stimulation of oxygen consumption in Elodea densa leaves by - SH group reagents. Giorn. Bot. Ital., 1996, in press.

  5. M. Bellando - S. Sacco - P. Rocco - F. Albergoni, Effects of inhibitors on the oxidative burst induced in Elodea densa leaves by - SH group reagents. Giorn. Bot. Ital., 1996, in press.

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Authors and Affiliations

  1. Dipartimento di Biologia, Università degli Studi di Milano, Via Celoria, 26, 20133, Milano

    Francesco Albergoni

  2. Dipartimento di Fisiologia Vegetale, Università degli Studi di Torino, Viale Mattioli, 25, 20125, Torino

    Mario Bellando & Silvano Sacco

  3. Centro per lo Studio deila Biologia, Cellulare e Molecolare nelle Piante - CNR, Via Celoria, 26, 20133, Milano

    Maria Teresa Marrè

  4. Fondazione Lombardia per l’Ambiente, Foro Bonaparte, 12, 20121, Milano

    Pietro Rocco

Authors
  1. Francesco Albergoni
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  2. Pietro Rocco
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  3. Mario Bellando
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  4. Silvano Sacco
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  5. Maria Teresa Marrè
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  6. E. Marrè
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Additional information

Nella seduta del 19 aprile 1996.

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Albergoni, F., Rocco, P., Bellando, M. et al. The induction of the oxidative burst inElodea densa by sulfhydryl reagents is independent of the inhibiting action of these reagents on photosynthesis. Rend. Fis. Acc. Lincei 7, 171–177 (1996). https://doi.org/10.1007/BF03001801

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  • DOI: https://doi.org/10.1007/BF03001801

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