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Defence mechanisms against production of free radicals in cells of ‘resurrection’ plants

Published online by Cambridge University Press:  05 December 2011

Cristina L. M. Sgherri
Affiliation:
Istituto di Chimica Agraria, Università di Pisa, Via S. Michele degli Scalzi, I-56124 Pisa, Italy
Mike F. Quartacci
Affiliation:
Istituto di Chimica Agraria, Università di Pisa, Via S. Michele degli Scalzi, I-56124 Pisa, Italy
Adriana Bochicchio
Affiliation:
Dipartimento di Agronomia e Produzione Erbacee, Università di Firenze, Piazzale delle Cascine 18, 1-50144 Firenze, Italy
Flavia Navari-Izzo
Affiliation:
Istituto di Chimica Quantistica ed Energetica Molecolare, C.N.R., Via Risorgimento 35, I-56126 Pisa, Italy
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Extract

The ability of protoplasm to revive following severe water deficit is at its greatest in desiccation-tolerant or ‘resurrection’ plants. Boea hygroscopica is a resurrection plant that is able to survive air-dryness following slow dehydration (80% RH) in a physiological state called anabiosis (Schwab & Gaff 1990). However, this plant loses the ability to recover complete physiological activity following rapid water loss (0% RH).

The ability to recover complete physiological activity following repeated protoplasmic dehydration of fully differentiated tissues is an adaptation mechanism unique to resurrection plants.

Type
Short Communications
Copyright
Copyright © Royal Society of Edinburgh 1994

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