Adlafia kociolekii sp. nov. (Bacillariophyceae): a new naviculoid diatom from the Eastern Himalayas, India

CHERAN RADHAKRISHNAN; SUDIPTA KUMAR DAS; CARLOS E. WETZEL; BALASUBRAMANIAN KARTHICK

doi:10.11646/phytotaxa.595.1.4

Issue: Vol. 595 No. 1: 3 May 2023

Type: Article

Published: 2023-05-03

DOI: 10.11646/phytotaxa.595.1.4

Page range: 062-072

Abstract views: 106

PDF downloaded: 4

Adlafia kociolekii sp. nov. (Bacillariophyceae): a new naviculoid diatom from the Eastern Himalayas, India

CHERAN RADHAKRISHNAN⁺⁻
SUDIPTA KUMAR DAS⁺⁻
CARLOS E. WETZEL⁺⁻
BALASUBRAMANIAN KARTHICK⁺⁻

Biodiversity and Paleobiology Group, Agharkar Research Institute, Pune, Maharashtra-411004, India. Affiliated with the Department of Environmental Science, Savitribai Phule University of Pune, Ganeshkind, Pune, Maharashtra-411007, India.

Centre of Excellence in Integrated Omics & Computational Biology, Utkal University, Vani Vihar, Bhubaneswar, Odisha – 751004, India.

Luxembourg Institute of Science & Technology, Department of Environmental Research & Innovation (ERIN), 41 rue du Brill, L-4422 Belvaux, Luxembourg.

Biodiversity and Paleobiology Group, Agharkar Research Institute, Pune, Maharashtra-411004, India. Affiliated with the Department of Environmental Science, Savitribai Phule University of Pune, Ganeshkind, Pune, Maharashtra-411007, India.

Sikkim new species epibryophytic northeast India aerophilic Algae

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Abstract

We describe Adlafia kociolekii sp. nov. from aerial habitats in Sikkim, India, a part of the Eastern Himalayas. The species is described based on light and scanning electron microscopic observations. The main diagnostic features include valves are clear elliptical, a narrow axial area at the centre, radiate to convergent striation, and distinctive Voigt discontinuity at both apices. In terms of ultrastructure, the features that identify this species as new are the internally presence of raphe on the elevated sternum, with distal raphe ends distinctly deflected to opposite sides of proximal ends, and distal ends terminating in long and thickened helictoglossae. The species was also recorded from wet walls and freshwater habitats of north-east India, in the present study. The morphological features of the species are compared with other closely similar taxa of Adalfia and other naviculoid genera.

References

Bhatt, C. & Karthick, B. (2020) A new aerophilic species of the genus Diploneis (Bacillariophyta) from the Mawsmai cave of Meghalaya, Northeast India. Phytotaxa 443: 67–78. https://doi.org/10.11646/phytotaxa.443.1.6
Cantonati, M., Kelly, M.G. & Lange-Bertalot, H. (2017) Freshwater Benthic Diatoms of Central Europe: Over 800 Common Species Used in Ecological Assessment. Koeltz Botanical Books, Germany, 942 pp.
Chudaev, D., Jüttenr, I., Glushchenko, A., Kulikovskiy, M., Gurung, S. & Williams, D.M. (2020) On the geographical distribution of Navicula nielsfogedii J.C.Taylor & Cocquyt. Diatom Research 35: 185–192. https://doi.org/10.1080/0269249X.2020.1758794
Ciugulea, I., Burroughs, S., De Francesco, C., Spitale, D., Charles, D.F., Lange-Bertalot, H. & Cantonati, M. (2019) Adlafia neoniana (Naviculaceae), a new diatom species from forest streams in Puerto Rico. Plant Ecology and Evolution 152 (2): 378–384. https://doi.org/10.5091/plecevo.2019.1616 
Das, S.K. & Adhikary, S.P. (2014) Freshwater algae of Eastern India. Daya Publishing House, New Delhi. pp. 453.
Das, S.K., Radhakrishnan, C., Kociolek, J.P. & Karthick, B. (2018) Three new species of Gomphonema Ehrenberg (Bacillariophyta), from Eastern Himalayas, with a note on the unique girdle band structure. Nova Hedwigia 147: 359–371. https://doi.org/10.1127/nova-suppl/2018/025
Das, S.K., Radhakrishnan, C., Kulikovskiy, M., Glushchenko, A., Kociolek, J.P. & Karthick, B. (2020) Pinnularia sikkimensis sp. nov. (Bacillariophyceae), from Eastern Himalayas and its distribution in Southeast Asia. Phytotaxa 447: 163–175. https://doi.org/10.11646/phytotaxa.447.3.2
Dhar, U. (2002) Conservation implications of plant endemism in high-altitude Himalaya. Current Science 82: 141–148. https://www.jstor.org/stable/24106104 
Glushchenko, A.M., Kociolek, J.P., Kuznetsova, I.V. & Kulikovskiy, M.S. (2020) Four new species from the diatom (Bacillariophyceae) genus Adlafia Moser, Lange-Bertalot & Metzeltin from waterbodies of Vietnam. PhytoKeys 162: 13–27. https://doi.org/10.3897/phytokeys.162.57657 
Gregory, W. (1856) Notice of some new species of British freshwater Diatomaceae. Quarterly Journal of Microscopical Society, new series 4: 1–14. https://doi.org/10.1242/jcs.s1-4.13.1
Guiry, M.D. & Guiry, G.M. (2022) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: https://www.algaebase.org (accessed 24 March 2023).
Jüttner, I., Gurung, S., Sharma, C., Sharma, S., de Haan, M. & Van de Vijer, B. (2010a) Morphology of new taxa in the Cymbella aspera and Cymbella neocistula groups, Cymbella yakii sp. nov. and Cymbella cf. hantzschiana from Everest National Park, Nepal. Polish Botanical Journal 55: 73–92.
Jüttner, I., Krammer, K., Van de Vijver, B., Tuji, A., Simkhada, B., Gurung, S. & Cox, E.J. (2010b) Oricymba (Cymbellales, Bacillariophyceae), a new cymbelloid genus and three new species from the Nepalese Himalaya. Phycologia 49: 407–423. https://doi.org/10.2216/09-77.1
Jüttner, I., Kociolek, J.P., Gurung, S., Gurung, A., Sharma, C.M., Levkov, Z., Williams, D.M. & Ector, L. (2018) The genus Gomphonema (Bacillariophyta) in Rara Lake, Nepal: taxonomy, morphology, habitat distribution and description of five new species, and a new record for Gomphoneis qii. Diatom Research 33: 283–320. https://doi.org/10.1080/0269249X.2018.1528182
Jüttner, I., Williams, D.M., Gurung, S., Van de Vijver, B., Levkov, Z., Sharma, C.M., Sharma, S. & Cox, E.J. (2017) The genus Odontidium (Bacillariophyta) in the Himalaya – a preliminary account of some taxa and their distribution. Phytotaxa 332: 1–21. https://doi.org/10.11646/phytotaxa.332.1.1
Kociolek, J.P., Blanco, S., Coste, M., Ector, L., Liu, Y., Karthick, B., Kulikovskiy, M., Lundholm, N., Ludwig, T., Potapova, M., Rimet, F., Sabbe, K., Sala, S., Sar, E., Taylor, J., Van de Vijver, B., Wetzel, C.E., Williams, D.M., Witkowski, A. & Witkowski, J. (2021) DiatomBase. Adlafia G. Moser, H. Lange-Bertalot & D. Metzeltin, 1998. Available from: http://diatombase.org/aphia.php?p=taxdetails&id=601327 (accessed 24 March 2023)
Kociolek, J.P. & de Reviers, B. (1996) The diatom types of Emile Manguin. II. Validating descriptions and designation of types for the New Caledonia species. Cryptogamie, Algologie 17: 193–215.
Krstić, S.S., Pavlov, A., Levkov, Z. & Jüttner, I. (2013) New Eunotia taxa in core samples from Lake Panch Pokhari in the Nepalese Himalaya. Diatom Research 28: 203–217. https://doi.org/10.1080/0269249X.2013.782343
Kulikovskiy, M.S., Lange-Bertalot, H., Witkowski, A., Dorofeyuk, N.I. & Genkal, S.I. (2010) Diatom assemblages from Sphagnum bogs of the world. I. Nur bog in northern Mangolia. Bibliotheca Diatomologica 55: 1–326.
Kulikovskiy, M.S., Lange-Bertalot, H., Metzeltin, D. & Witkowski, A. (2012) Lake Baikal: Hotspot of endemic diatoms I. Iconographia Diatomologica 23: 1–607.
Lange-Bertalot, H. (1999) Kobayasiella nom. nov. ein neuer Gattungsname für Kobayasia Lange-Bertalot 1996. Iconographia Diatomologica 6: 272–275. 
Lange-Bertalot, H. (2001) Navicula sensu stricto, 10 genera separated from Navicula sensu lato Frustulia. In: Lange-Bertalot, H. (Ed.) Diatoms of Europe. A. R. G. Ganter Verlag K. G., Ruggell, 526 pp.
Lange-Bertalot, H. & Genkal, S.I. (1999) Diatoms from Siberia I. Islands in the Arctic Ocean (Yugorsky-Shar Strait). Iconographia Diatomologica 6: 1–271.
Le Cohu, R., Marquié, J. & Tudesque, L. (2020) Adlafia diahotensis sp. nov. (Bacillariophyceae), a new species from New Caledonia. Cryptogamie, Algologie 41: 1–6.   https://doi.org/10.5252/cryptogamie-algologie2020v41a1 
Liu, B., Williams, D.M. & Ou, Y. (2017) Adlafia sinensis sp. nov. (Bacillariophyceae) from the Wuling Mountains Area, China, with reference to the structure of its girdle bands. Phytotaxa 298: 43–54. https://doi.org/10.11646/phytotaxa.298.1.4 
Marquié, J., Le Cohu, R. & Coste, M. (2018) Adlafia moseri and A. tjibaoui two new diatom species (Bacillariophyta) from New Caledonia with further observations on Adlafia muscora and Kobayasiella saxicola. Phytotaxa 357: 41–51. https://doi.org/10.11646/phytotaxa.357.1.4
Morales, E.A. & Le, M. (2005) A new species of the diatom genus Adlafia (Bacillariophyceae) from the United States. Proceedings of the Academy of Natural Sciences of Philadelphia 154: 149–154. https://doi.org/10.1635/0097-3157(2004)154[0149:ANSOTD]2.0.CO;2
Monnier, O., Ector, L., Rimet, F., Ferréol, M. & Hoffmann, L. (2012) Adlafia langebertalotii sp. nov. (Bacillariophyceae), a new diatom from the Grand-Duchy of Luxembourg morphologically similar to A. suchlandtii comb. nov. Nova Hedwigia Beiheft 141: 131–140.
Moser, G., Lange-Bertalot, H. & Metzeltin, D. (1998) Insel der Endemiten Geobotanisches Phänomen Neukaledonien (Island of endemics New Caledonia - a geobotanical phenomenon). Bibliotheca Diatomologica 38: 1–464.
Radhakrishnan, C., Das, S.K., Kumar, V., Kociolek, J.P. & Karthick, B. (2020) A new freshwater Gomphonema Ehrenberg (Bacillariophyta) species from Eastern Himalayas, India. Fottea 20: 128–136. https://doi.org/10.1127/1438-9134/2017/125 
Schiller, W. & Lange-Bertalot, H. (1997) Eolimna martini n. gen., n. sp. (Bacillariophyceae) aus dem Unter-Oligozän von Sieblos/Rhön im Vergleich mit ähnlichen rezenten Taxa. Paläontologische Zeitschrift 71: 163–172. https://doi.org/10.1007/BF02988485
Spaulding, S. & Edlund, M. (2009) Adlafia. In Diatoms of North America. Available from: https://diatoms.org/genera/adlafia (accessed 24 March 2023)
Tusset, E.A., Tremarin, P.I., Straube, A. & Ludwig, T.A. (2017) Morphology of Adlafia taxa (Bacillariophyta, Cymbellaceae), with proposition of two new species from Brazil. Phytotaxa 306: 259–274. https://doi.org/10.11646/phytotaxa.306.4.2 
Van de Vijver, B., Frenot, Y. & Beyens, L. (2002) Freshwater diatoms from Île de la Possession (Crozet Archipelago, sub-Antarctica). Bibliotheca Diatomologica 46: 1–412.
Van de Vijver, B., Lange-Bertalot, H., Wetzel, C.E. & Ector, L. (2017) Michelcostea, a new diatom genus (Bacillariophyta) from the sub-Antarctic region. Nova Hedwigia Beiheft 146: 125–136. https://doi.org/10.1127/1438-9134/2017/125
Van de Vijver, B., Jüttner, I., Gurung, S., Sharma, C., Sharma, S., De Haan, M. & Cox, E.J. (2011) The genus Cymbopleura (Cymbellales, Bacillariophyta) from high altitude freshwater habitats, Everest National Park, Nepal, with the description of two new species. Fottea 11: 245–269. https://doi.org/10.5507/fot.2011.025
Wadmare, N., Roy, S., Kociolek, J.P. & Karthick, B. (2019) Two new aerophilic species of Stauroneis Ehrenberg (Bacillariophyta) from the Eastern Himalayas. Botany Letters 166: 234–245. https://doi.org/10.1080/23818107.2019.1602786
Wetzel, C.E., Jüttner, I., Gurung, S. & Ector, L. (2019) Analysis of the type material of Achnanthes minutissima var. macrocephala (Bacillariophyta) and description of two new small capitate Achnanthidium species from Europe and the Himalaya. Plant Ecology & Evolution 152: 340–350. https://doi.org/10.5091/plecevo.2019.1628