Abstract
The effect of desiccation and subsequent rehydration on short-term (2 hours) pigment response (chlorophylls a and b and carotenoids) has been investigated in four Australian seagrasses [Zostera muelleri Irmisch ex Aschers., Heterozostera tasmanica (Martens ex Aschers.) den Hartog, Amphibolis antarctica (Labill.) Sonder et Aschers. ex Aschers. and Posidonia australis Hook f.]. Zostera muelleri and H. tasmanica showed statistically significant increases in photosynthetic pigments following mild desiccation and Z. muelleri showed significantly less pigment after three hours of rehydration and a significant decrease in the ratio of chlorophyll a to chlorophyll b. Amphibolis antarctica and P. australis did not significantly change their pigment levels in response to air exposure or subsequent rehydration (...)
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