Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 684 No. 1: 5 Feb. 2025
Type: Article
Published: 2025-02-05
DOI: 10.11646/phytotaxa.684.1.6
Page range: 105-116
Abstract views: 156
PDF downloaded: 6

Two new diatoms of the genus Gomphosinica from Chumba Yumco, Xizang, China

Yunnan Key Laboratory of Ecological Protection and Resource Utilization of River-lake Networks, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P.R. China
Yunnan Key Laboratory of Ecological Protection and Resource Utilization of River-lake Networks, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P.R. China
Yunnan Key Laboratory of Ecological Protection and Resource Utilization of River-lake Networks, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P.R. China
Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi 435002, China
Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, Colorado-80309, USA
Yunnan Key Laboratory of Ecological Protection and Resource Utilization of River-lake Networks, Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P.R. China
diatom Gomphosinica new species taxonomy Algae

Abstract

This paper describes two new species of the genus Gomphosinica from Chumba Yumco, in the south of Kangma County, Xizang. The detailed morphological descriptions of the two new species, named Gomphosinica kangmaensis sp. nov. and G. chongbayongcuoensis sp. nov., are presented; the descriptions are based on light and scanning electron microscopy. The two species have the morphological characteristics that are typical for the genus Gomphosinica, including the striae composed of 2–3 rows of areolae, a prominent stigma with a round external opening and internal opening with a siliceous hooded structure comprised of many small, round openings, as well as the presence of septa and pseudosepta at the apices. G. kangmaensis sp. nov. and G. chongbayongcuoensis sp. nov. have morphological characteristics that mostly resemble those of G. selincuoensis W. Zhang, Q.M. You & Kociolek and G. lacustris Kociolek, You & Wang, respectively, but they differ from these species in details of the size, shape of valve and central area, the density of striae, the pattern of areolae, the position of apical pore-fields, and the deflection of raphe ends.

References

  1. Battarbee, R.W. (1986) Diatom analysis. In: Norton, S.A. (Ed.) Handbook of Holocene Palaeoecology & Palaeohydrology. John Wiley and Sons: Chichester, UK, pp. 527–570. https://doi.org/10.1126/science.233.4762.482
  2. Cheng, Y., Liu, Y., Kociolek, J.P., You, Q.M. & Fan, Y.W. (2018) A new species of Gomphosinica (Bacillariophyta) from Lugu Lake, Yunnan Province, SW China. Phytotaxa 348 (2): 118–124. https://doi.org/10.11646/phytotaxa.348.2.6
  3. Chudaev, D.A. & Georgiev, A.A. (2016) A new taxon of Navicula sensu stricto (Bacillariophyta, Naviculaceae) from high-altitude lake in Tibet, China. Phytotaxa 243 (2): 180–184. https://doi.org/10.11646/phytotaxa.243.2.9
  4. Diatoms of North America Editorial Team. (2024) Diatoms of North America glossary. Available from: https://diatoms.org/glossary (accessed 16 November 2024)
  5. Foged, N. (1959) Diatoms from Afghanistan. Det Kongelige Danske Videnskabernes Selskab, Biologiske Shrifter 11: 1–95.
  6. Huang, C.Y. (1979) The quaternary diatoms of Yangbajingensis, Tibet. In: Li, T.D. (Ed.) Contribution to the Geology of the Qing Hai-Xizang (Tibet) Plateau. Geology Press, Beijing. pp. 176–195. [in Chinese]
  7. Hustedt, F. (1922) Bacillariales aus Innerasien. Gesammelt von Dr. Sven Hedin. In: Heidin, S. (Ed.) Southern Tibet, discoveries in former times compared with my own researches in 1906–1908. Vol. 6. Lithographic Institute of the General Staff of the Swedish Army, Stockholm, pp. 107–152. https://doi.org/10.5962/bhl.title.64360
  8. Jao, C., Zhu, H. & Lee, Y. (1974) The fresh-water algae from Mount Qomolangma district (in Tibet). In: Report of the Scientific Survey of Mount Qomolangma district 1966–1968. pp. 92–126.
  9. Jao, C.C. (1964) Some fresh-water algae from southern Tibet. Oceanologia et Limnologia Sinica 6 (2): 169–192. [in Chinese with English abstract]
  10. Jüttner, I., Cox, E.J. & Ormerod, S.J. (2000) New or poorly known diatoms from Himalayan streams. Diatom research 15 (2): 237–262. https://doi.org/10.1080/0269249X.2000.9705498
  11. Kang, W., Anslan, S., Brner, N., Schwarz, A. & Schwalb, A. (2020) Diatom metabarcoding and microscopic analyses from sediment samples at Lake Nam Co, Tibet: the effect of sample-size and bioinformatics on the identified communities. Ecological Indicators 121: 107070. https://doi.org/10.1016/j.ecolind.2020.107070
  12. Kociolek, J.P. & Stoermer, E.F. (1991) Taxonomy and ultrastructure of some Gomphonema and Gomphoneis taxa from the upper Laurentian Great Lakes. Canadian Journal of Botany 69 (7): 1557–1576. https://doi.org/10.1139/b91-200
  13. Kociolek, J.P., You, Q.M., Wang, Q.X. & Liu, Q. (2015) A consideration of some interesting freshwater gomphonemoid diatoms from North America and China, and the description of Gomphosinica gen. nov. Nova Hedwigia Beiheft 144: 175–198.
  14. Kociolek, J.P., Cui, N., Liu, Q., Xie, S., Feng, J., Wang, J. & Shi, Y. (2020) New and interesting diatoms from Tibet. III. Valve ultrastructure of two Neidium Pfitzer species from Tibet: comparison with other morphological groups of Neidium and consideration of phylogenetic relationships within the genus. Diatom Research 35 (2): 155–162. https://doi.org/10.1080/0269249X.2020.1737239
  15. Krammer, K. & Lange-Bertalot, H. (1985) Bibliotheca Diatomologica: Naviculaceae Neue und wenig bekannte Taxa, neue Kombinationen und Synonyme sowie Bemerkungen zu einigen Gattungen. Vol. 9. Stuttgart: Gebrüder Borntraeger Verlag, pp. 5–230.
  16. Krammer, K. (2003) Cymbopleura, Delicata, Navicymbula, Gomphocymbellopsis, Afrocymbella. In: Lange-Bertalot, H. (Ed.) Diatoms of Europe. Vol. 4: Diatoms of the European inland waters and comparable habitats elsewhere. ARG Gantner Verlag KG, Ruggell, 530 pp.
  17. Kützing, F.T. (1844) Die kieselschaligen. Bacillarien oder Diatomeen. W.Köhne, Nordhausen, 152 pp. https://doi.org/10.5962/bhl.title.64360
  18. Li, J.Y. (1983) The diatom fossils from diatomaceous earth of Sipangul Lake, Region Xizang (Tibet). In: Editorial Committee of the Qinghai Tibet Plateau Geological Collection of the Ministry of Geology and Mineral Resources (eds.) Contribution to the Geology of the Qinghai-Xizang (Tibet) Plateau. Geology Press, Beijing. pp. 272–319. [in Chinese with English abstract]
  19. Li, J.Y., Zheng, J.P. & Wei, L.J. (2005) Diatom and its paleoenvironment in the sediments of Taicuo ancient lake, Xizang (Tibet). Acta Geologica Sinica 79 (3): 1. [In Chinese]
  20. Li, Y.L., Xie, P., Gong, Z. & Shi, Z. (2003) Cymbellaceae and Gomphonemataceae (Bacillariophyta) from Hengduan Mountains region (southwestern China). Nova Hedwigia 76 (3): 507– 536. https://doi.org/10.1127/0029-5035/2003/0076-0507
  21. Li, Y.L, Gong, Z., Xiew, P. & Shen, J. (2007) Floral survey of the diatom genera Cymbella and Gomphonema (Cymbellales, Bacillariophyta) from the Jolmolungma Mountain region of China. Cryptogamie Algologie 28 (3): 209 – 244.
  22. Li, Y.L., Williams, D., Metzeltin, D. Kociolek, J.P. & Gong, Z.J. (2010) Tibetiella pulchra gen. nov. et sp. nov., a new freshwater epilithic diatom (Bacillariophyta) from River Nujiang in Tibet, China. Journal of Phycology 46 (2): 325–330. https://doi.org/10.1111/j.1529-8817.2009.00776.x
  23. Liu, Q., Xiang, Y., Yu, P., Xie, S. & Kociolek, J.P. (2020) New and interesting diatoms from Tibet. II. Description of two new species of monoraphid diatoms. Diatom Research 35 (4): 353–361. https://doi.org/10.1080/0269249X.2020.1810781
  24. Liu, Q., Yang, L., Nan, F., Feng, J., Lv, J., Kociolek, J.P. & Xie, S. (2018) A new diatom species of Aneumastus D. G. Mann & Stickle (Bacillariophyta, Bacillariophyceae, Mastogloiales, Mastogloiaceae) from Tibet, China. Phytotaxa 373 (3): 231–235. https://doi.org/10.11646/phytotaxa.373.3.6
  25. Liu, Q., Li, J.J., Nan, F.R., Feng, J., Lv, J.P., Xie, S.L. & Kociolek, J.P. (2019) New and interesting diatoms from Tibet: I. Description of a new species of Clipeoparvus Woodbridge et al.. Diatom Research 34 (1): 33–38. https://doi.org/10.1080/0269249X.2019.1578697
  26. Liu, S.Y. (2011) Biodiversity of Gongbu Nature Reserve in Xizang (Tibet). Southwest China Normal University Press, Chongqing, China. 362 pp. [in Chinese]
  27. Liu, Y., Kociolek, J.P., Wang, L., Lu, X.X, Zhu, H., Liu, G.X., Sui, F.Y. & Fan, Y.W. (2024) A new diatom genus Spargeria gen. nov. (Bacillariophyceae) from Xizang, China, and the description of two new species. Journal of Oceanology and Limnology 42 (1): 291–303. https://doi.org/10.1007/s00343-023-2356-6
  28. Medlin, L.K. & Kaczmarska, I. (2004) Evolution of the diatoms: V. Morphological and cytological support for the major clades and a taxonomic revision. Phycologia 43 (3): 245–270. https://doi.org/10.2216/i0031-8884-43-3-245.1
  29. Mereschkowsky, C. (1906) Diatomées du Tibet. Imperial Russkoe Geograficheskoe Obshchestvo. St. Petersburg. 40 pp.
  30. Patrick, R.M. & Reimer, C.W. (1975) The Diatoms of the United States. Vol. II, Part 1. Monograph 13. Academy of Natural Sciences. Philadelphia, PA. 218 pp.
  31. Jao, C.C. (1964) Algae in Southern Xizang (Tibet). Oceans and Lakes 6 (2): 51–74. [in Chinese with English abstract]
  32. Jao, C.C. & Zhu, H.Z. (1974) Summary of algae in Mount QomoLangma area in southern Xizang, China. Science Bulletin (1): 30–32. [in Chinese with English abstract]
  33. Round, F.E., Crawford, R.M. & Mann, D.G. (1990) The diatoms. Biology and morphology of the genera. Cambridge University Press, Cambridge, 747 pp.
  34. Shi, Z.X. (2004) Flora Algarum Sinicarum Aquae Dulcis. Tomus XII. Bacillariophyta. Gomphonemaceae. Science Press, Beijing, 147 pp.
  35. Hasle & Rytter, G. (1987) Atlas and catalogue of the diatom types of Friedrich. Phycologia 27 (2): 300–301. https://doi.org/10.2216/i0031-8884-27-2-300.1
  36. Skvortzow, B.W. (1935) Diatomées récoltées par le Père E. Licent au course de ses voyages dans le Nord de la Chine au bas Tibet, en Mongolie et en Mandjourie. Publications du Musée Hoangho Paiho de Tien Tsin. Tienstsin 36: 1–43.
  37. Wei, M.R., Feng, T., Lin, Y.Q., He, S.F., Yan, H.L., Qiao, R.X. & Chen, Q.W. (2024) Elevation-associated pathways mediate aquatic biodiversity at multi-trophic levels along a plateau inland river. Water Research 258: 121779–121781. https://doi.org/10.1016/j.watres.2024.121779
  38. Wu, W.W. (2018) Study on the classification of diatoms in Linzhi and Lhasa of Xizang (Tibet). Shanxi University. Master thesis [in Chinese with English abstract]
  39. Xu, Y., Shen, Z.H., Ying, L.X., Wang, Z.H., Huang, J.H., Zang, R.G. & Jiang, Y.X. (2017) Hotspot analyses indicate significant conservation gaps for evergreen broadleaved woody plants in China. Scientific Reports 7 (1): 1859. https://doi.org/10.1038/s41598-017-02098-0
  40. Yu, H.B., Miao, S.Y., Xie, G.W., Guo, X.Y., Chen, Z. & Favre, A. (2020) Contrasting floristic diversity of the Hengduan Mountains, the Himalayas and the Qinghai-Tibet Plateau sensu stricto in China. Frontiers in Ecology and Evolution 8: 136. https://doi.org/10.3389/fevo.2020.00136
  41. Zhao, X.H., Wang, J.W., Liu, Q.X., Du, W.R., Yang, S.Q., Cai, P.G. & Ni, J.R. (2024) Multifunctionality promotes the prosperity of riverine planktonic diatoms in plateau. Environmental Research 246: 118148. https://doi.org/10.1016/j.envres.2024.118148
  42. Zhu, H.Z. & Chen, J.Y. (1996) New taxa of diatom (Bacillariophyta) from Xizang (Tibet) (II). Acta Phytotaxonomica Sinica34 (1): 102–104.
  43. Zhu, H.Z., Chen, J.Y. (2000) Bacillariophyta of the Xizang Plateau. Science Press, Beijing, China. 353 pp. [in Chinese]
  44. Zuo, J.M. (2021) Late Quaternary activity characteristics of the Chongba Yumtso normal fault in the southern section of the Yadong-Gullu Rift, Tibet. 353 pp. [in Chinese]

How to Cite

Xie, S.-Y., Huang, J.-M., Zheng, K., Guo, J.-S., Kociolek, J.P. & Li, Y.-L. (2025) Two new diatoms of the genus Gomphosinica from Chumba Yumco, Xizang, China. Phytotaxa 684 (1): 105–116. https://doi.org/10.11646/phytotaxa.684.1.6