Life history, morphological variability and growth rates of the life phases of Gracilaria tenuistipitata (Rhodophyta: Gracilariales) in vitro


  • José Bonomi Barufi Instituto de Biociências da Universidade de São Paulo
  • Eurico Cabral de Oliveira Instituto de Biociências da Universidade de São Paulo
  • Estela Maria Plastino Instituto de Biociências da Universidade de São Paulo
  • Mariana Cabral de Oliveira Instituto de Biociências da Universidade de São Paulo



Gracilaria tenuistipitata, life history, reproduction, tetraspore progeny, Rhodophyta, Gracilariales


Gracilaria tenuistipitata, a species of commercial interest, is becoming a model organism for studies on red algal physiology and molecular biology as it can be grown easily in vitro under a broad range of conditions. Most of the experiments carried out around the world have been based on a tetrasporophytic clone isolated in our laboratory from a specimen collected in China. Here we describe the life history of this species, give anatomic details of the reproductive structures, illustrate the morphological variability of tetraspore progeny and compare the growth rate of gametophytic and sporophytic thalli. Tetrasporophytic branches showed higher growth rates than gametophytic branches.


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How to Cite

Bonomi Barufi J, Cabral de Oliveira E, Maria Plastino E, Cabral de Oliveira M. Life history, morphological variability and growth rates of the life phases of Gracilaria tenuistipitata (Rhodophyta: Gracilariales) in vitro. scimar [Internet]. 2010Jun.30 [cited 2022Sep.29];74(2):297-303. Available from: