Table

Desiccation Tolerance of Isolated Chloroplasts and of Poikilohydrous Autotrophs3

Species

Isolated chloroplasts (Beta) Nostoc and Chlorococcum Lichens

Lichens (50 species)

Pseudocyphellaria dissimilis Bryophytes Ctenidium molluscum Dicranum scoparium Epiphytic mosses (14 species) Fissidens cristatus Mnium punctatum Rhacomitrium lanuginosum Sphagnum sp. Exormetheca holstii Riccia canescens (bulbils)

Pteridophytes

Selaginella lepidophylla

Isoetes australis

Asplenium ruta-muraria

Asplenium septentrionale

Asplenium trichomanes

Camptosorus rhizophyllus (gametophyte)

Cheilanthes (8 species)

Hymenophyllum tunbridgense

Hymenophyllum wilsonii

Notholaena maranthae

Paraceterach sp.

Pellea (2 species)

Pleurosorus rutifolius

Polypodium polypodioides

Polypodium vulgare

Polystichum lobatum

Gametophytes of ferns (5 species)

Degree of Desiccation Survived

15% RWC Air-dry

Varying between <10% rh and >60% rh <10% rh in winter, >50% in summer 0%>-30% rh

Varying between <10% rh and >60% rh

Air-dry

Air-dry

Air-dry

6% RWC 15% rh 2%-30% rh 2% rh 3% RWC 3%—10% RWC 7%-10% RWC 20-65 rh

Time of Drought Survived

Until equilibrium

73 years

38-78 week air-dry 24-56 week P205 8-10 h until equilibrium

Until equilibrium 40 h 40 h

239 days <5 days 8 months 7 year

About 1 year Until equilibrium 1-3 days h2s04 (winter) 1-3 days h2s04 (winter) 1-3 d h2s04 (winter)

h2so4

Until equilibrium 15 days 30 days

Until equilibrium Until equilibrium Until equilibrium 50 h

Reference

Santarius 1967 Shields and Durrell 1964

Lange 1953

Green et al. 1991

Dircksen 1964 Dircksen 1964

Hosokawa and Kubota 1957

Dircksen 1964

Dircksen 1964

Dilks and Proctor 1974

Wagner and Titus 1984

Dinter 1921 (S. Hellwege et al. 1994)

Jovet-Ast 1969

Eickmeier 1979 Gaff and Latz 1978 Kappen 1964 Kappen 1964 Kappen 1964 Picket 1914 Gaff and Latz 1978 Proctor 2003 Proctor 2003 Iljin 1931

Gaff and Latz 1978 Gaff and Latz 1978 Gaff and Latz 1978 Stuart 1968 Kappen 1964 Kappen 1964 Kappen 1965

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