Taxonomy and valve morphology of Humidophila species (Bacillariophyceae) from aerophilous habitats in northeastern Argentina, with the description of four new species

Vouilloud, Amelia A.; Guerrero, José María; Sala, Silvia E.; Simonato, Julián; Kociolek, John Patrick

doi:10.5507/fot.2021.016

Cited by 5 publications

(2 citation statements)

References 36 publications

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“…Cleaned materials and slides are archived at the Diatom Collection at Agharkar Research Institute Herbarium (AHMA). The terminology of the valves follows Lowe et al (2014) and Vouilloud et al (2022). 15).…”

Section: Humidophila Bigibbamentioning

confidence: 99%

Humidophila manipurensis sp. nov. and the first record of Humidophila bigibba (Hustedt) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová from Northeast India

Yogeshwaran¹,

Radhakrishnan²,

Dwivedi³

et al. 2022

Fottea

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A new aerophilic diatom species, Humidophila manipurensis sp. nov., is described from the Sadu Chiru waterfalls, Manipur, India, a part of the Indo-Burma hotspot region. This species is characterized by having its valve shape slightly inflated at middle, terminal raphe ends that are slightly deflected, round areolae and a central depression. Further, we also recorded Humidophila bigibba from Meghalaya State, Northeast India, and this population is compared with the type population from Indonesia and Chinese populations. Fine structural details of both taxa were examined using light and scanning electron microscopy and compared with morphologically similar taxa in this genus. Addition of new species from this region will further add to the biodiversity richness of the Indo-Burma biodiversity hotspot. Further, this study confirms the presence of H. bigibba for the first time in India. This species has a deep constriction in the middle of the valve which is not found in the populations from the Indonesia and China.

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Section: Humidophila Bigibbamentioning

confidence: 99%

Humidophila manipurensis sp. nov. and the first record of Humidophila bigibba (Hustedt) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová from Northeast India

Yogeshwaran¹,

Radhakrishnan²,

Dwivedi³

et al. 2022

Fottea

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“…Species of Humidophila are globally distributed, but several taxa are confined to hotspots, such as the Antarctic and Subantarctic regions (Kopalová et al 2015). Taxonomic studies registering Humidophila species were developed in the Antarctic Region (Van De Vijver et al 2002;Kopalová et al 2015), Asia (Lowe et al 2017), Europe (Lange-Bertalot & Genkal 1999;Lange-Bertalot & Werum 2001;Werum & Lange-Bertalot 2004;Nikolic et al 2020), South America (Rumrich et al 2000;Metzeltin et al 2005;Vouilloud et al 2022), and New Caledonia (Moser et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Humidophila (Bacillariophyceae) in subtropical mountain springs and subaerial habitats, Paraná state, Brazil, with the description of H. piraquarae sp. nov.

Ferreira¹,

Kava²,

Ludwig³

2023

Fottea

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The genus Humidophila is mainly characterized by small cells, striae often composed by one elongated areola occluded by thin hymenes. Species are distributed globally and are common in moist sub-aerial habitats. We identified five Humidophila species found in the well-conserved freshwater bodies and subaerial wet habitats from the mountain region "Mananciais da Serra". Four previously known species (Humidophila brekkaensis, H. contenta, H. nienta, H. paracontenta) and one new species (Humidophila piraquarae sp. nov.) were described and illustrated based on light and scanning electron microscopy observations. Humidophila piraquarae sp. nov. is similar to H. nienta (Carter) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová and H. undulata Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová, but is best distinguished by their prominent constriction, apices broadly rostrate-rounded, striae density, raised siliceous thickening in the apical region of the axial area, and raphe proximal endings laterally expanded in anchorshaped depressions. Addtionally, a list of Humidophila taxa already registered in Brazil is presented.

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Arcellinida (testate lobose amoebae) in sediments of a tropical water-supply reservoir are reliable indicators of past trophic state shifts

Semensatto

Yamagami²,

Vieira³

et al. 2022

J Paleolimnol

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Taxonomy and valve morphology of Humidophila species (Bacillariophyceae) from aerophilous habitats in northeastern Argentina, with the description of four new species

Cited by 5 publications

References 36 publications

Humidophila manipurensis sp. nov. and the first record of Humidophila bigibba (Hustedt) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová from Northeast India

Humidophila manipurensis sp. nov. and the first record of Humidophila bigibba (Hustedt) Lowe, Kociolek, Johansen, Van de Vijver, Lange-Bertalot et Kopalová from Northeast India

Humidophila (Bacillariophyceae) in subtropical mountain springs and subaerial habitats, Paraná state, Brazil, with the description of H. piraquarae sp. nov.

Arcellinida (testate lobose amoebae) in sediments of a tropical water-supply reservoir are reliable indicators of past trophic state shifts

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