Desiccation-Tolerant Flowering Plants in Southern Africa

Desiccation-Tolerant Flowering Plants in Southern Africa

The South African flora contains a unique abundance of higher plants which withstand virtually complete desiccation. Water potentials of field-dry leaves corresponded to 30 to 40 percent relative humidity. Mature leaves survived from 15 to approximately 0 percent relative humidity. Known examples we...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1971-12, Vol.174 (4013), p.1033-1034
1. Verfasser: Gaff, D. F.
Format: Artikel
Sprache:eng
Schlagworte:
Drought tolerance
Ferns
Flowering plants
Keratinocytes
Latex
Leaves
Lipids
Melanosomes
Plants
Relative humidity
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Beschreibung
Zusammenfassung:The South African flora contains a unique abundance of higher plants which withstand virtually complete desiccation. Water potentials of field-dry leaves corresponded to 30 to 40 percent relative humidity. Mature leaves survived from 15 to approximately 0 percent relative humidity. Known examples were increased from 4 to 15 species, which for the first time included grasses.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.174.4013.1033