Gomphonema Species (Bacillariophyceae) from Marikina River, Rizal (Luzon), Philippines

Q3 Multidisciplinary Philippine Journal of Science Pub Date : 2023-07-24 DOI:10.56899/152.05.11

M. Martinez-Goss, Taisuke Ohtsuka, Harue Inoue, E. Arguelles, Tohru Ikeya, E. Peralta, Rey Donne Papa, Noboru Okuda

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Abstract

A floristic study of the diatoms (Bacillariophyceae) along the Marikina River in the eastern part of Metro Manila, Philippines, recorded at least 140 species belonging to 39 genera. Of these genera, one of the greatest number of species was observed in the genus Gomphonema (18species). These species were identified and described under the bright field light microscope.Some species were further observed under the scanning electron microscope. A habitat description of the occurrence of the Gomphonema species is given. Twelve (12) out of the 18species are new records for the country: G. brasiliense subsp. pacificum Moser, Lange-Bertalot & Metzeltin, G. chinense Liu & Kociolek, G. contraturris Lange-Bertalot & E. Reichardt, G. cuneolus E. Reichardt, G. exilissimum (Grunow) Lange-Bertalot & E.Reichardt, G. insigniforme E.Reichardt & Lange-Bertalot, G. javanicum Hustedt, G. kobayasii Kociolek & J.C.Kingston, G. pseudosphaerophorum H. Kobayasi, G. sundaense E. Reichardt, G. cf. qingyiensis L-X Zhang, P. Yu & Q-M You, and G. vibrio var. bohemicum (Reichelt & Fricke) R. Ross. Hence, this paper reports a total of 44 species of Gomphonema from the Philippines, including previous studies from 1937 to date.

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菲律宾吕宋岛马里基纳河的 Gomphonema 种（裸子植物

对菲律宾大马尼拉东部马里基纳河沿岸硅藻（Bacillariophyceae）的植物学研究记录了 39 个属的至少 140 个物种。在这些属中，Gomphonema 属（18 个物种）的物种数量最多。在明视野光学显微镜下对这些物种进行了鉴定和描述，并在扫描电子显微镜下对一些物种进行了进一步观察。报告还对 Gomphonema 物种的栖息地进行了描述。18 个物种中有 12 个是该国的新记录：G. brasiliense subsp. pacificum Moser, Lange-Bertalot & Metzeltin、G. chinense Liu & Kociolek、G. contraturris Lange-Bertalot & E. Reichardt、G. cuneolus E. Reichardt、G. exilissimum (Grunow) Lange-Bertalot & E.Reichardt、G. insigniforme E. Reichardt & Lange-Bertalot & E. Reichardt。Reichardt & Lange-Bertalot，G. javanicum Hustedt，G. kobayasii Kociolek & J.C.Kingston，G. pseudosphaerophorum H. Kobayasi，G. sundaense E. Reichardt，G. cf. qingyiensis L-X Zhang，P. Yu & Q-M You，以及 G. vibrio var. bohemicum (Reichelt & Fricke) R. Ross。因此，本文共报告了菲律宾的 44 种 Gomphonema（包括 1937 年至今的研究）。

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Philippine Journal of Science Multidisciplinary-Multidisciplinary

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