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Fine-Scale Spatial Patterns of Mature and Immature Filaments and Bioorganic Compounds of the Rhodophyte Bangia atropurpurea in the Supra- and Eulittoral Zones of a Large Lake1
Version of Record online: 25 MAY 2012
© 2012 Phycological Society of America
Journal of Phycology
Volume 48, Issue 6, pages 1530–1534, December 2012
How to Cite
Spitale, D., Scalfi, A., Angeli, N. and Cantonati, M. (2012), Fine-Scale Spatial Patterns of Mature and Immature Filaments and Bioorganic Compounds of the Rhodophyte Bangia atropurpurea in the Supra- and Eulittoral Zones of a Large Lake. Journal of Phycology, 48: 1530–1534. doi: 10.1111/j.1529-8817.2012.01180.x
Received 12 July 2011. Accepted 27 February 2012.
- Issue online: 11 DEC 2012
- Version of Record online: 25 MAY 2012
- Accepted manuscript online: 24 APR 2012 09:43AM EST
- Bangia atropurpurea ;
- immature and mature filaments;
- Lake Garda;
- stress tolerance;
- uniseriate and multiseriate filaments
Bangia atropurpurea (Mertens ex Roth) C. Agardh is a freshwater red alga species that is distributed worldwide. B. atropurpurea is highly adaptable due to its stress-tolerance, which ensures survival under desiccation periods and under radiation extremes typical of the supra- and upper eulittoral zones. Whereas a number of previous investigations addressed some of the physiological and biochemical traits involved in stress-tolerance, we studied the spatial arrangement of the mature (multiseriate) and immature (uniseriate) filaments and of selected bioorganic compounds along a gradient defined by distance from the waterline. Substantial physiological and biochemical differences were previously observed among phenological stages in the marine environment. In this study, we showed a nonrandom spatial structure of both phenological stages and photosynthetic pigments and photoprotective compounds, R-phycocyanin and R-phycoerythrin along the supralittoral-eulittoral gradient. This observed pattern strongly suggests a complex interplay between physio-morphological regulation and spatial arrangement of mature and immature filaments in conferring the typical stress tolerance of B. atropurpurea.