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http://dx.doi.org/10.4490/algae.2013.28.2.161

Monosiphonous growth and cell-death in an unusual Bostrychia (Rhodomelaceae, Rhodophyta): B. anomala sp. nov.  

West, John A. (School of Botany, University of Melbourne)
Loiseaux de Goer, Susan (11 Rue des Moguerou)
Zuccarello, Giuseppe C. (School of Biological Sciences, Victoria University of Wellington)
Publication Information
ALGAE / v.28, no.2, 2013 , pp. 161-171 More about this Journal
Abstract
A morphologically distinct lineage within the Bostrychia moritziana-B. radicans species complex is described as a new species. Bostrychia anomala has thalli with branched monosiphonous filaments with apical cell divisions. The species has terminal tetrasporangial stichidia, each subtending cell bearing tetrasporangia with 2 cover cells. Discharged spores divide transversely, the lower cell first forming a narrow rhizoid and the upper cell forming a monosiphonous shoot. Females have subterminal procarps and males have terminal spermatangial stichidia. Carposporophytes are spherical. Isolates in culture show a pattern of cell death not associated with injury, reminiscent of programmed cell death. Bostrychia anomola shows cell death at intervals along the filaments resulting in division of adjacent cells on either side of the dead cell re-joining the filament; cell division of only one adjacent cell resulting in branching at that site; or filaments fragmenting at the cell death point with adjacent cells forming new apical cells, a means of thallus propagation. The cell death pattern could be a method of filament propagation in the mangrove environment where sexual reproduction is rare.
Keywords
Bostrychia anomala sp. nov.; monosiphonous; 'non-fusion-division'; programmed-cell-death; Rhodomelaceae; sexual life history; vegetative propagation;
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1 Swofford, D. L. 2002. PAUP$^*$: Phylogenetic Analysis Using Parsimony (and other methods). Sinauer Associates, Sunderland, MA.
2 Van Doorn, W. G. 2011. Classes of programmed cell death in plants, compared to those in animals. J. Exp. Bot. 62:4749-4761.   DOI   ScienceOn
3 West, J. A. 2005. Long term macroalgal culture maintenance. In Andersen, R. (Ed.) Algal Culturing Techniques. Academic Press, New York, pp. 157-163.
4 West, J. A. & Zuccarello, G. C. 1999. Biogeography of sexual and asexual populations in Bostrychia moritiziana (Rhodomelacaeae, Rhodophyta). Phycol. Res. 47:115-123.   DOI   ScienceOn
5 West, J. A., Zuccarello, G. & Calumpong, H. P. 1992. Bostrychia bispora sp. nov. (Rhodomelaceae, Rhodophyta), an apomictic species from Darwin, Australia: reproduction and development in culture. Phycologia 31:37-52.   DOI
6 West, J. A., Zuccarello, G. C., Hommersand, M., Karsten, U. & Gors, S. 2006. Observations on Bostrychia radicosa comb. nov. (Rhodomelaceae, Rhodophyta). Phycol. Res. 54:1-14.   DOI   ScienceOn
7 Zuccarello, G. C., Kamiya, M., Ootsuki, R., Loiseaux de Goer, S., Pedroche, F. F. & West, J. A. 2012. New records of red algae from mangroves in El Salvador and Pacific Mexico, combining culture and molecular observations. Bot. Mar. 55:101-111.
8 Zuccarello, G. C. & West, J. A. 1995. Hybridization studies in Bostrychia. 1: B. radicans (Rhodomelaceae, Rhodophyta) from Pacific and Atlantic North America. Phycol. Res. 43:233-240.   DOI
9 Zuccarello, G. C. & West, J. A. 1997. Hybridization studies in Bostrychia: 2. Correlation of crossing data and plastid DNA sequence data within B. radicans and B. moritziana (Ceramiales, Rhodophyta). Phycologia 36:293-304.   DOI
10 Zuccarello, G. C. & West, J. A. 2003. Multiple cryptic species: molecular diversity and reproductive isolation in the Bostrychia radicans/B. moritziana complex (Rhodomelaceae, Rhodophyta) with focus on North American isolates. J. Phycol. 39:948-959.   DOI   ScienceOn
11 Zuccarello, G. C. & West, J. A. 2006. Molecular phylogeny of the subfamily Bostrychioideae (Ceramiales, Rhodophyta): subsuming Stictosiphonia and highlighting polyphyly in species of Bostrychia. Phycologia 45:24-36.   DOI
12 Zuccarello, G. C. & West, J. A. 2011. Insights into the evolution and speciation in the red alga Bostrychia: 15 years of research. Algae 26:21-32.   DOI   ScienceOn
13 Zuccarello, G. C., West, J. A. & King, R. J. 1999. Evolutionary divergence in the Bostrychia moritziana/B. radicanscomplex (Rhodomelaceae, Rhodophyta): molecular and hybridization data. Phycologia 38:234-244.   DOI
14 Garbary, D. J., Galway, M. E., Lord, C. E. & Gunawardena, A. N. 2012. Programmed cell death in multicellular algae. In Heimann, K. & Katsaros, C. (Eds.). Advances in Algal Cell Biology. de Gruyter Press, Berlin, pp. 1-20.
15 Hommersand, M. H. 1963. The morphology and classification of some Ceramiaceae and Rhodomelaceae. Univ. Calif. Publ. Bot. 35:165-366.
16 Kim, G. H. & Fritz, L. 1993. A signal glycoprotein with ${\alpha}$-D-mannosyl residues is involved in the wound-healing response of Antithamnion sparsum (Ceramiales, Rhodophyta). J. Phycol. 29:85-90.   DOI
17 Mayr, E. 1942. Systematics and the origin of species. Columbia University Press, New York, 382 pp.
18 Kim, G. H., Lee, I. K. & Fritz, L. 1995. The wound-healing responses of Antithamnion nipponicum and Griffithsia pacifica (Ceramiales, Rhodophyta) monitored by lectins. Phycol. Res. 43:161-166.   DOI
19 Kim, H. S., Kim, G. H. & Lee, I. K. 1988. Wound-healing in several filamentous red algae, Ceramiales. Korean J. Phycol. 3:15-27.
20 King, R. J. & Puttock, C. F. 1989. Morphology and taxonomy of Bostrychia and Stictosiphonia (Rhodomelaceae/Rhodophyta). Aust. Syst. Bot. 2:1-73.   DOI
21 Rambaut, A. & Drummond, A. J. 2007. Tracer v.1.5.0. Available from: http://beast.bio.ed.ac.uk/Tracer. Accessed Feb 20, 2013.
22 Ronquist, F. & Huelsenbeck, J. P. 2003. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19:1572-1574.   DOI   ScienceOn
23 Stamatakis, A. 2006. RAxML-VI-HPC: maximum likelihood-based phylogenetic analyses with thousands of taxa and mixed models. Bioinformatics 22:2688-2690.   DOI   ScienceOn