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A Contribution to the Taxonomy of Mastogloia (Class Bacillariophyceae) in the Philippines

 

Milagrosa R. Martinez-Goss1,* and Luisito T. Evangelista2

1Institute of Biological Sciences and Museum of Natural History,
University of the Philippines Los Baños, College, Laguna
2Botany Division, National Museum, Manila

corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

ABSTRACT

Nine species of Mastogloia found on the brown seaweeds, Sargassum spp., in two study areas in the Philippines (Lian, Batangas and Plaridel, Quezon) are described. Mastogloia smithii Thw. ex W. Sm. is added to the list of new record for the country.

 

INTRODUCTION

Mastogloia Thw. ex Wm. Smith is a large, predominantly benthic marine genus in the division Bacillariophyta (Round et al. 1990). A distinctive characteristic of the group is the presence of a partectal ring, i.e., a modified girdle band, usually in the first girdle band or valvocopula that developed into a series of more or less spherical hollow or bulbous chambers or partecta (Paddock & Kemp 1988). These partecta are vividly noted in "cleaned" specimens of the inner valve face.

Mastogloia taxa were observed to produce extracellular structures whose shape, arrangement, and number are species-specific and related to the number of partecta (Hein et al. 1993). These secretions serve as a means of attachment for the diatom (Sivaci et al. 2008), in addition to facilitating the trapping and binding of carbonate grains for stromatolite growth (Hein et al. 1993; Awramik & Riding 1988) while enveloping the cells to form gelatinous, bubble-like colonies (Round et al. 1990). . . . . . . . . .

 

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REFERENCES

AWRAMIK SM, RIDING R. 1988. Role of algal eukaryotes in subtidal columnar stromatolite formation. Proc Nat Acad Sci USA 85: 1327-29.

EHRENBERG CG. 1854. Mikrogeologie. Das Erden und Felsen Schaffende Wirken des Unsichtbar kleinen selbstandigen lebens auf der Erde. Leipzig, Verlag von Leopold Voss. 374p.

FOGED N. 1987. Diatoms from Viti Levu, Fiji Is. J. Crana, Stuttgart, West Germany. Bibliotheca Diatomelogica 14. 195 p., 33 pl.

GASTON T. 2008. Diatoms as a Food Source for Sorites dominicensis. [B.S. Thesis] Florida Atlantic University, Wilkes Honors College. 21p.

GREVILLE, KK. LL. D. 1863. Description of New and Rare Diatoms. Series VII. 1 plate. Q.J.M.S. Vol II, n.s. p. 231. 8vo. London. Retrieved October 28, 2009 from http://jcs.biologist .org/cgi/reprint/s2-2/8/231.pdf.

HEIN MK, WINSBOROUGH BM, DAVIS JS, GOLUBIC S. 1993. Extracellular structures produced by marine species of Mastogloia. Diatom Res 8(1): 73-88.

MANN A. 1925. Marine Diatoms of the Philippine Islands. Smithsonian Institution United States National Museum Bulletin 100: 6(1): 1-182, pls. 154.

PADDOCK TB, KEMP KD. 1988. A description of some new species of the genus Mastogloia with further observations on M. elegans and M. goessii. Diatom Res 3(1): 109-121.

PATRICK R, REIMER CW. 1966. The Diatoms of the United States Exclusive of Alaska and Hawaii. Acad. Nat. Sci. Philadelphia. Monog. 13, 688p.

PODZORSKI AC, HAKANSSON H. 1987. Freshwater and Marine Diatoms from Palawan. Berlin: J. Cramer, Stuttgart. 135p. pls. 55.

[PGI] POLISH GEOLOGICAL INSTITUTE. 2003. How the Baltic Sea was changing. Retrieved October 26, 2009 from http://www.pgi.gov.pl/pgi_en/index.php?option=news&task=viewarticle&sid=4&Itemid=2.

ROUND FE, CRAWFORD RM, MANN DG. 1990. The Diatoms. Biology and Morphology of the Genera. New York: Cambridge University Press. 747p.

SIVACI ER, CANKAYA E, KILMC S, DERE S. 2008. Seasonal assessment of epiphytic diatom distribution and diversity in relation to environmental factors in a karstic lake Central Turkey. Nova Hedwigia 86(1-2): 215-230.

SMITH, W. 1856. Genus Mastogloia Thwaites ex W. Smith. Syn Brit Diat 2: 63.

VAN HEURCK H. 1896. A treatise on the Diatomaceae. Tr. by W.E. Baxter. London: William Wesley & Son. 558p., 35 pl.

WORMS. 2009. Mastogloia smithii Thw. ex Wm. Sm. Retrieved October 26, 2009 from http://www. marinespecies.org/aphia.php?p=taxdetails&id=157053 on 2009-10-26