Summary
All species of desiccation tolerant angiosperms studied conserved some ATP in air-dry viable leaves. Otherwise there was no uniformity of response to drying: ATP content remained high in some species, but fell markedly in the others. ATP levels stayed high in Boea hygroscopica and Borya constricta until relative water content fell below 30%. ATP content recovered in the first 2 h of rehydration in Boea, but recovery was gradual in Borya, taking more than 16 h.
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Abbreviations
- ADP :
-
adenosine 5′-diphosphate
- ATP :
-
adenosine 5′-triphosphate
- BES :
-
N,N-bis[2-hydroxyethyl]-2-aminoethanesulfonic acid
- HEPES :
-
N-2-hydroxyethylpiperazine-N1-2-ethanesulfonic acid
- RH :
-
relative humidity
- RWC :
-
relative water content
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Gaff, D.F., Ziegler, H. ATP and ADP contents in leaves of drying and rehydrating desiccation tolerant plants. Oecologia 78, 407–410 (1989). https://doi.org/10.1007/BF00379117
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DOI: https://doi.org/10.1007/BF00379117