Tagged: inducible desiccation tolerance

Aloina ambigua

Embryonic moss sporophytes can be hardened to desiccation tolerance

Embryos of the moss Aloina ambigua are inducibly desiccation tolerant (DT), requiring a slow-dry period to confer tolerance to air-dryness. Hardening to DT describes a condition of temporary tolerance to a rapid-dry event (<30 min from full turgor to air-dryness) that is conferred by a prior slow-dry event. Brinda et al. found for the first time that moss embryos can indeed be hardened to DT, by first slowly drying embryos and equilibrating them at 50 % relative humidity, then rehydrating the embryos and exposing them to a rapid dry event at intervals of 24 h. The degree of hardening to...

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