Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 620 No. 2: 13 Oct. 2023
Type: Article
Published: 2023-10-13
DOI: 10.11646/phytotaxa.620.2.3
Page range: 157-166
Abstract views: 106
PDF downloaded: 13

Mallomonas acidophila sp. nov. (Synurales, Chrysophyceae)—a new species from the tropics with morphological features of fossil taxa

A.N. Severtsov Institute of Ecology and Evolution; Russian Academy of Sciences; Leninsky Prospect 33; 119071 Moscow; Russia
K.A. Timiryazev Institute of Plant Physiology; Russian Academy of Sciences; Botanical Street 35; 127276; Moscow; Russia
Coastal branch of Joint Vietnam-Russia Tropical Science and Technology Research Center; 30 Nguyen Thien Thuat; Nha Trang 57000; Vietnam
Algae Synurales Mallomonas section Papillosae scale ultrastructure new species tropics

Abstract

A new species, Mallomonas acidophila sp. nov., is described from Vietnam based on silica-scale morphology observed using scanning and transmission electron microscopy. Mallomonas acidophila belongs to section Papillosae and is most similar to M. preisigii, described from fossil deposits. Scales of Mallomonas acidophila have a shallow elongated dome, which is recessed from the distal margin and located at different angles to the longitudinal axis, with papillae on the shield and dome, the absence of pores on the base plate and the wide posterior flange, and partially covered with the secondary siliceous layer in the area adjacent to the V-rib. The bristles of the newly described species are short, with a bifurcated apex and a hook-shaped foot. The new species has been found in two acidified and humic water bodies located in the coastal area in Thua Thien Hue Province.

 

References

  1. Asmund, B. & Kristiansen, J. (1986) The genus Mallomonas (Chrysophyceae). A taxonomic survey based on the ultrastructure of silica scales and bristles. Opera Botanica 85: 1–128.
  2. Balonov, I.M. (1978) Electron microscopic study of the genus Spiniferomonas Takahashi (Chrysophyta). Botanicheskii Zhurnal (St. Petersburg) 63: 1639–1647.
  3. Bradley, D.E. (1964) A study of the Mallomonas, Synura and Chrysosphaerella of northern Iceland. Journal of General Microbiology 37: 321–333. https://doi.org/10.1099/00221287-37-3-321
  4. Čertnerová, D., Čertner, M. & Škaloud, P. (2019) Molecular phylogeny and evolution of phenotype in silica‐scaled chrysophyte genus Mallomonas. Journal of Phycology 55: 912–923. https://doi.org/10.1111/jpy.12882
  5. Dixit, A.S., Dixit, S.S. & Smol, J.P. (1992) Algal microfossils provide high temporal resolution of environmental trends. Water, Air, & Soil Pollution 62 (1–2): 75–87. https://doi.org/10.1007/BF00478454
  6. Dixit, S.S., Dixit, A.S. & Smol, J.P. (1999) Lake sediment chrysophyte scales from the northeastern U.S.A. and their relationship to environmental variables. Journal of Phycology 35 (5): 903–918. https://doi.org/10.1046/j.1529-8817.1999.3550903.x
  7. Dürrschmidt, M. (1982) Studies on the Chrysophyceae from South Chilean inland waters by means of scanning and transmission electron microscopy, II. Algological Studies/Archiv für Hydrobiologie Supplement Volume 63: 121–163.
  8. Dürrschmidt, M. (1983) Three new species of Mallomonas (Chrysophycae, Mallomonadaceae) from Lake Lanalhue, Chile. Nordic Journal of Botany 3: 423–430. https://doi.org/10.1111/j.1756-1051.1983.tb01959.x
  9. Dürrschmidt, M. & Croome, R. (1985) Mallomonadaceae (Chrysophyceae) from Malaysia and Australia. Nordic Journal of Botany 5: 285–298. https://doi.org/10.1111/j.1756-1051.1985.tb01657.x
  10. Ginn, B.K., Rate, M., Cumming, B.F. & Smol, J. (2010) Ecological distribution of scaled-chrysophyte assemblages from the sediments of 54 lakes in Nova Scotia and southern New Brunswick, Canada. Journal of Paleolimnology 43: 293–308. https://doi.org/10.1007/s10933-009-9332-9
  11. Gusev, E.S. (2013) Studies on synurophycean algae from mangrove wetlands (Vietnam). Nova Hedwigia, Beiheft 142: 87–95.
  12. Gusev, E.S. (2015) A new species of the genus Mallomonas (Synurales, Chrysophyceae), Mallomonas fimbriata sp. nov. Phytotaxa 195 (4): 291–296. https://doi.org/10.11646/phytotaxa.195.4.4
  13. Gusev, E.S. & Siver, P.A. (2017) Mallomonas neoampla sp. nov. from Vietnam, a new species that bridges the gap between fossil and modern taxa. Nova Hedwigia 104: 521–528. https://doi.org/10.1127/nova_hedwigia/2016/0389
  14. Gusev, E.S. & Kulikovskiy, M.S. (2020) Two new species of genus Mallomonas from swamp localities in Vietnam. Phytotaxa 468: 121–129. https://doi.org/10.11646/phytotaxa.468.1.8
  15. Gusev, E. & Kezlya, E. (2021) Mallomonas lusca sp. nov. (Synurales, Chrysophyceae)—a rare species from Southeast Asia. Phytotaxa 529 (1): 105–112. https://doi.org/10.11646/phytotaxa.529.1.8
  16. Gusev, E. & Martynenko, N. (2022) Diversity of silica-scaled Chrysophytes in Central Vietnam. Water 14: 1–21. https://doi.org/10.3390/w14010065
  17. Gusev, E.S., Doan-Nhu, H., Nguyen-Ngoc, L. & Kapustin, D.A. (2016) Two new species of the genus Mallomonas from the Cat Tien National Park (Viet Nam): Mallomonas distinguenda and Mallomonas skvortsovii. Phytotaxa 273 (1): 59–64. https://doi.org/10.11646/phytotaxa.273.1.6
  18. Gusev, E.S., Čertnerová, D., Škaloudová, M. & Škaloud, P. (2018) Exploring cryptic diversity and distribution patterns in the Mallomonas kalinae/rasilis species complex with a description of a new taxon—Mallomonas furtiva sp. nov. Journal of Eukaryotic Microbiology 65: 38–47. https://doi.org/10.1111/jeu.12427
  19. Gusev, E., Guseva, E., Kezlya, E. & Kulikovskiy, M. (2019a) Mallomonas minuscula sp. nov. (Synurales, Chrysophyceae), a new member in the section Torquatae from Vietnam. Fottea 19: 132–137. https://doi.org/10.5507/fot.2019.004
  20. Gusev, E.S., Kapustin, D.A., Martynenko, N.A., Guseva, E.E. & Kulikovskiy, M.S. (2019b) Mallomonas gusakovii sp. nov. (Chrysophyceae, Synurales), a new species from Phu Quoc Island, Vietnam. Phytotaxa 406 (3): 199–205. https://doi.org/10.11646/phytotaxa.406.3.6
  21. Gusev, E.S., Doan-Nhu, H., Nguyen-Ngoc, L., Guseva, E.E. & Luom, P.T. (2019c) Silica-scaled chrysophytes from Cam Ranh Peninsula (Khanh Hoa Province, Vietnam). Nova Hedwigia Beiheft 148: 63–76. https://doi.org/10.1127/nova-suppl/2019/077
  22. Gusev, E.S., Perminova, O.S., Guseva, E.E. & Startseva, N.A. (2019d) The genus Mallomonas in small urban rivers in Nizhniy Novgorod (Russia). Nova Hedwigia Beiheft 148: 77–88. https://doi.org/10.1127/nova-suppl/2019/091
  23. Gusev, E., Martynenko, N. & Tran, H. (2021a) Studies on Algae from the Order Synurales (Chrysophyceae) in Northern Vietnam. Diversity 13 (11): 602. [14 pp.] https://doi.org/10.3390/d13110602
  24. Gusev, E., Kezlya, E., Tran, H. & Kulikovskiy, M. (2021b) Mallomonas vietnamica sp. nov. (Synurales, Chrysophyceae), a new species, that shares some features with fossil taxa. Cryptogamie Algologie 42: 39–46. https://doi.org/10.5252/cryptogamie-algologie2021v42a3
  25. Gusev, E.S., Kapustin, D.A., Martynenko, N.A. & Kulikovskiy, M.S. (2022a) Diversity of silica-scaled Chrysophytes (Stramenopiles: Chrysophyceae) from Indonesian Papua. Diversity 2022, 14: 726. https://doi.org/10.3390/d14090726
  26. Gusev, E., Kapustin, D., Shkurina, N., Martynenko, N. & Phan, T.H. (2022b) Mallomonas fragariformis sp. nov. (Synurales, Chrysophyceae), a new tropical chrysophyte species. Phytotaxa 576 (1): 123–130. https://doi.org/10.11646/phytotaxa.576.1.8
  27. Gusev, E., Martynenko, N., Kapustin, D., Doan-Nhu, H. & Nguyen-Ngoc, L. (2022c) Diversity of silica-scaled chrysophytes of two tropical islands: Phu Quoc and Con Son (Viet Nam). Life 12: 1611. https://doi.org/10.3390/life12101611
  28. Gusev, E., Guseva, E., Tran, D.D. & Kulikovskiy, M. (2022d) Flora of silica-scaled chrysophytes (Chrysophyceae) of two provinces in Southern Vietnam. Inland Water Biology 15 (3): 205–216. https://doi.org/10.1134/S1995082922030063
  29. Gusev, E., Martynenko, N., Shkurina, N., Phan, T.H., Tran, D.D. & Nguyen, T.H.T. (2023) An annotated checklist of algae from the order Synurales (Chrysophyceae) of Viet Nam. Diversity 15: 183. https://doi.org/10.3390/d15020183
  30. Harris, K. (1967) Variability in Mallomonas. Journal of General Microbiology 46: 185–191. https://doi.org/10.1099/00221287-46-2-185
  31. Harris, K. & Bradley, D.E. (1957) An examination of the scales and bristles of Mallomonas in the electron microscope using carbon replicas. Journal of the Royal Microscopical Society 76: 37–46. https://doi.org/10.1111/j.1365-2818.1956.tb00438.x
  32. Harris, K. & Bradley, D.E. (1958) Some unusual Chrysophyceae studied in the electron microscope. Journal of General Microbiology 18: 71–83. https://doi.org/10.1099/00221287-18-1-71
  33. Hartmann, H. & Steinberg, C. (1986) Mallomonadacean (Chrysophyceae) scales: early biotic paleoindicators of lake acidification. Hydrobiologia 143 (1): 87–91. https://doi.org/10.1007/BF00026649
  34. Kristiansen, J. (2001) Biogeography of silica-scaled chrysophytes. Nova Hedwigia Beiheft 122: 23–39.
  35. Kristiansen, J. (2008) Dispersal and biogeography of silica-scaled chrysophytes. Biodiversity and Conservation 17: 419–426. https://doi.org/10.1007/s10531-007-9259-2
  36. Kristiansen, J. & Preisig, H.R. (2007) Chrysophyte and Haptophyte Algae: 2 Teil/2nd Part: Synurophyceae. Spektrum Akademischer Verlag, Heidelberg, 252 pp.
  37. Péterfi, L.S. & Momeu, L. (1976) Romanian Mallomonas species studied in light and electron microscopes. Nova Hedwigia 27: 353–392.
  38. Péterfi, L.S., Momeu, L., Padisák, J. & Varga, V. (1998) Silica-scaled chrysophytes from permanent and temporary waters of Hortobágy, eastern Hungary. Hydrobiologia 369/370: 339–351. https://doi.org/10.1023/A:1017093725502
  39. Perty, M. (1852) Zur Kenntniss kleinster Lebensformen nach Bau, Funktionen, Systematik, mit Specialverzeichniss der in der Schweiz beobachteten. Jent & Reinert, Bern, 228 pp.
  40. Rezácova, M. (2006) Mallomonas kalinae (Synurophyceae), a new species of alga from northern Bohemia, Czech Republic. Preslia 78: 353–358.
  41. Škaloud, P., Kristiansen, J. & Škaloudová, M. (2013) Developments in the taxonomy of silica-scaled chrysophytes—from morphological and ultrastructural to molecular approaches. Nordic Journal of Botany 31: 385–402. https://doi.org/10.1111/j.1756-1051.2013.00119.x
  42. Siver, P.A. (2002) Two new taxa in the Section Papillosae of the genus Mallomonas (Synurophyceae) from the Ocala National Forest, Florida, USA. Nordic Journal of Botany 22: 123–128. https://doi.org/10.1111/j.1756-1051.2002.tb01628.x
  43. Siver, P.A. (2022) The downsizing of gigantic scales and large cells in the genus Mallomonas (Synurales, Chrysophyceae). Scientific Reports 12: 4896. https://doi.org/10.1038/s41598-022-09006-1
  44. Siver, P.A. & Wolfe, A.P. (2005a) Scaled Chrysophytes in middle eocene lake sediments from Northwestern Canada, including description of six new species. Nova Hedwigia Beiheft 128: 295–308.
  45. Siver, P.A. & Wolfe, A.P. (2005b) Eocene scaled Chrysophytes with pronounced modern affinities. International Journal of Plant Sciences 166: 533–536. https://doi.org/10.1086/428702
  46. Siver, P.A. & Lott, A.M. (2012) Fossil species of Mallomonas from an Eocene Maar lake with recessed dome structures: Early attempts at securing bristles to the cell covering? Nova Hedwigia 95 (3): 517–529. https://doi.org/10.1127/0029-5035/2012/0057
  47. Siver, P.A., Jo, B.Y., Kim, J.I., Shin, W., Lott, A.M. & Wolfe, A.P. (2015) Assessing the evolutionary history of the class Synurophyceae (Heterokonta) using molecular, morphometric, and paleobiological approaches. American Journal of Botany 102: 921–941. https://doi.org/10.3732/ajb.1500004
  48. Schmidt‐Thomé, P., Nguyen, H., Pham, L., Jarva, J. & Nuottimäki, K. (2015) Climate change adaptation measures in Vietnam. Springer International Publishing: Cham, Switzerland, 95 pp. https://doi.org/10.1007/978-3-319-12346-2
  49. Wolfe, A.P. & Siver, P.A. (2013) A hypothesis linking chrysophyte microfossils to lake carbon dynamics on ecological and evolutionary time scales. Global and Planetary Change 111: 189–198. https://doi.org/10.1016/j.gloplacha.2013.09.014
  50. Wujek, D.E. (1984) Scale-bearing Chrysophyceae (Mallomonadaceae) from North-Central Costa Rica. Brenesia 22: 309–313.