Abstract
Mallomonas fragariformis sp. nov. is described from Viet Nam based on silica-scale morphology studied by means of transmission and scanning electron microscopy. This species belongs to the Mallomonas mangofera species complex and is characterized by small scales ornamented with large papillae placed in shallow pits and stout four-edged serrated spines on the rear scales. Scales of Mallomonas fragariformis were found in eight localities from six provinces of Central and Southern Viet Nam. Also scales of this species have previously been reported from Java Island in Indonesia. The distribution and habitat conditions of the new species are summarized.
References
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?ertnerová, D., ?ertner, 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
Doan-Nhu, H., Tinh, T.T., Gusev, E.S., Kulikovskiy, M.S., Phan-Tan, L. & Nguyen-Ngoc, L. (2021) Taxonomic composition of silica-scaled chrysophytes in a tropical mountain reservoir. Inland Water Biology 14; 490–499. https://doi.org/10.1134/S1995082921050060
Dürrschmidt, M. (1983) A taxonomic study of the Mallomonas mangofera group (Mallomonadaceae, Chrysophyceae), including the description of four new taxa. Plant Systematics and Evolution 143: 175–196. https://doi.org/10.1007/bf00986377
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
Gusev, E.S. (2012) A new species of the genus Mallomonas (Synurophyceae), Mallomonas spinosa sp. nov., from Vietnam. Phytotaxa 66: 1–5. https://doi.org/10.11646/phytotaxa.66.1.1
Gusev, E.S. (2013) Studies on synurophycean algae from mangrove wetlands (Vietnam). Nova Hedwigia Beiheft 142: 87–95.
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
Gusev, E.S. & Nguyen, T.H.T. (2011) Silica-scaled chrysophytes (Chrysophyceae and Synurophyceae) from Vietnam (Khanh Hoa and Quang Nam provinces). Nova Hedwigia 93: 191–199. https://doi.org/10.1127/0029-5035/2011/0093-0191
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
Gusev, E. & Kulikovskiy, M. (2021) Mallomonas siderea sp. nov. (Synurales, Chrysophyceae), a new tropical species from the section Torquatae. Nova Hedwigia 113: 291–301. https://doi.org/10.1127/nova_hedwigia/2021/0655
Gusev, E. & Martynenko, N. (2022) Diversity of Silica—Scaled Chrysophytes in Central Vietnam. Water 14: 1–21. https://doi.org/10.3390/w14010065
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
Gusev, E.S., Doan-Nhu, H. & Nguyen-Ngoc, L. (2017) Silica-scaled chrysophytes from Cat Tien National Park (Dong Nai Province, Viet Nam). Nova Hedwigia 105: 347–364. https://doi.org/10.1127/nova_hedwigia/2017/0416
Gusev, E.S., Doan-Nhu, H., Nguyen-Ngoc, L., Guseva, E.E. & Luom, P.T. (2019a) 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
Gusev, E., Guseva, E., Kezlya, E. & Kulikovskiy, M. (2019b) 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
Gusev, E., Kulizin, P., Guseva, E., Shkurina, N. & Kulikovskiy, M. (2019c) Mallomonas lamii sp. nov. (Synurales, Chrysophyceae), a New Species Bearing Large Scales Described from the Tropics. Phytotaxa 423: 266–272. https://doi.org/10.11646/phytotaxa.423.4.5
Gusev, E.S., Gusakov, V.A., Guseva, E.E., Kulikovskiy, M.S., Tsvetkov, A.I. & D?nh, C.N. (2020) Flora of Silica-Scaled Chrysophytes (Chrysophyceae: Synurales, Paraphysomonadales) of the Mekong Delta. Inland Water Biology 13: 349–357. https://doi.org/10.1134/s1995082920020224
Gusev, E., Martynenko, N. & Tran, H. (2021a) Studies on Algae from the Order Synurales (Chrysophyceae) in Northern Vietnam. Diversity 13: 1–14. https://doi.org/10.3390/d13110602.
Gusev, E., Shkurina, N. & Kulikovskiy, M. (2021b) Mallomonas loricata sp. nov. (Synurales, Chrysophyceae), a new tropical species from section Plantae. Phytotaxa 500 (3): 225–233. https://doi.org/10.11646/phytotaxa.500.3.6
Gusev, E., Guseva, E., Tran Duc Dien & Kulikovskiy, M. (2022a) Flora of silica-scaled chrysophytes (Chrysophyceae) of two provinces in Southern Vietnam. Inland Water Biology 15: 205–216. https://doi.org/10.1134/S1995082922030063
Gusev, E., Martynenko, N., Kapustin, D., Doan-Nhu, H. & Nguyen-Ngoc Lam (2022b) 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
Hansen, P. & Kristiansen, J. (1995) Mallomonas madagascariensis, M. lemuriocellata and M. crocodilorum (Synurophyceae), three new species from Madagascar. Nordic Journal of Botany 15: 215–223. https://doi.org/10.1111/j.1756-1051.1995.tb00146.x
Kim, J.H. & Kim, H.S. (2010) Mallomonas jejuensis sp. nov. (Synurophyceae) from Jeju Island, South Korea. Nordic Journal of Botany 28: 350–353. https://doi.org/10.1111/j.1756-1051.2009.00600.x
Kim, H.S.,Kim, J.H., Shin, W. & Jo, B.Y. (2014) Mallomonas elevata sp. nov. (Synurophyceae), a new scaled Chrysophyte from Jeju Island, South Korea. Nova Hedwigia 98: 89–102. https://doi.org/10.1127/0029-5035/2013/0138
Kristiansen, J. (2000) Cosmopolitan chrysophytes. Systematics and Geography of Plants 70: 291–300. https://doi.org/10.2307/3668648
Kristiansen, J. (2002) The genus Mallomonas (Synurophyceae): a taxonomic survey based on the ultrastructure of silica scales and bristles. Opera Botanica 139: 1–218.
Kristiansen, J. & Preisig, H.R. (2007) Chrysophyte and Haptophyte Algae: 2 Teil/2nd Part: Synurophyceae. Spektrum Akademischer Verlag, Heidelberg, 252 pp.
Momeu, L. & Péterfi, L.S. (1979) Taxonomy of Mallomonas based on the fine structure of the scales and bristles. Contribu?ii Botanice Cluj-Napoca 1979: 13–20.
Nicholls, K.H. (1984) Four new Mallomonas species of the Torquatae series (Chrysophyceae). Canadian Journal of Botany 62: 1583–1591. https://doi.org/10.1139/b84-213
Nicholls, K.H. (1989) Descriptions of four new Mallomonas taxa (Mallomonadaceae, Chrysophyceae). Journal of Phycology 25: 292-300. https://doi.org/10.1111/j.1529-8817.1989.tb00125.x
Perty, M. (1852) Zur Kenntniss kleinster Lebensformen nach Bau, Funktionen, Systematik, mit Specialverzeichniss der in der Schweiz beobachteten. Jent & Reinert, Bern, 228 pp.
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
?ertnerová, D., ?ertner, 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
Doan-Nhu, H., Tinh, T.T., Gusev, E.S., Kulikovskiy, M.S., Phan-Tan, L. & Nguyen-Ngoc, L. (2021) Taxonomic composition of silica-scaled chrysophytes in a tropical mountain reservoir. Inland Water Biology 14; 490–499. https://doi.org/10.1134/S1995082921050060
Dürrschmidt, M. (1983) A taxonomic study of the Mallomonas mangofera group (Mallomonadaceae, Chrysophyceae), including the description of four new taxa. Plant Systematics and Evolution 143: 175–196. https://doi.org/10.1007/bf00986377
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
Gusev, E.S. (2012) A new species of the genus Mallomonas (Synurophyceae), Mallomonas spinosa sp. nov., from Vietnam. Phytotaxa 66: 1–5. https://doi.org/10.11646/phytotaxa.66.1.1
Gusev, E.S. (2013) Studies on synurophycean algae from mangrove wetlands (Vietnam). Nova Hedwigia Beiheft 142: 87–95.
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
Gusev, E.S. & Nguyen, T.H.T. (2011) Silica-scaled chrysophytes (Chrysophyceae and Synurophyceae) from Vietnam (Khanh Hoa and Quang Nam provinces). Nova Hedwigia 93: 191–199. https://doi.org/10.1127/0029-5035/2011/0093-0191
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
Gusev, E. & Kulikovskiy, M. (2021) Mallomonas siderea sp. nov. (Synurales, Chrysophyceae), a new tropical species from the section Torquatae. Nova Hedwigia 113: 291–301. https://doi.org/10.1127/nova_hedwigia/2021/0655
Gusev, E. & Martynenko, N. (2022) Diversity of Silica—Scaled Chrysophytes in Central Vietnam. Water 14: 1–21. https://doi.org/10.3390/w14010065
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
Gusev, E.S., Doan-Nhu, H. & Nguyen-Ngoc, L. (2017) Silica-scaled chrysophytes from Cat Tien National Park (Dong Nai Province, Viet Nam). Nova Hedwigia 105: 347–364. https://doi.org/10.1127/nova_hedwigia/2017/0416
Gusev, E.S., Doan-Nhu, H., Nguyen-Ngoc, L., Guseva, E.E. & Luom, P.T. (2019a) 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
Gusev, E., Guseva, E., Kezlya, E. & Kulikovskiy, M. (2019b) 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
Gusev, E., Kulizin, P., Guseva, E., Shkurina, N. & Kulikovskiy, M. (2019c) Mallomonas lamii sp. nov. (Synurales, Chrysophyceae), a New Species Bearing Large Scales Described from the Tropics. Phytotaxa 423: 266–272. https://doi.org/10.11646/phytotaxa.423.4.5
Gusev, E.S., Gusakov, V.A., Guseva, E.E., Kulikovskiy, M.S., Tsvetkov, A.I. & D?nh, C.N. (2020) Flora of Silica-Scaled Chrysophytes (Chrysophyceae: Synurales, Paraphysomonadales) of the Mekong Delta. Inland Water Biology 13: 349–357. https://doi.org/10.1134/s1995082920020224
Gusev, E., Martynenko, N. & Tran, H. (2021a) Studies on Algae from the Order Synurales (Chrysophyceae) in Northern Vietnam. Diversity 13: 1–14. https://doi.org/10.3390/d13110602.
Gusev, E., Shkurina, N. & Kulikovskiy, M. (2021b) Mallomonas loricata sp. nov. (Synurales, Chrysophyceae), a new tropical species from section Plantae. Phytotaxa 500 (3): 225–233. https://doi.org/10.11646/phytotaxa.500.3.6
Gusev, E., Guseva, E., Tran Duc Dien & Kulikovskiy, M. (2022a) Flora of silica-scaled chrysophytes (Chrysophyceae) of two provinces in Southern Vietnam. Inland Water Biology 15: 205–216. https://doi.org/10.1134/S1995082922030063
Gusev, E., Martynenko, N., Kapustin, D., Doan-Nhu, H. & Nguyen-Ngoc Lam (2022b) 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
Hansen, P. & Kristiansen, J. (1995) Mallomonas madagascariensis, M. lemuriocellata and M. crocodilorum (Synurophyceae), three new species from Madagascar. Nordic Journal of Botany 15: 215–223. https://doi.org/10.1111/j.1756-1051.1995.tb00146.x
Kim, J.H. & Kim, H.S. (2010) Mallomonas jejuensis sp. nov. (Synurophyceae) from Jeju Island, South Korea. Nordic Journal of Botany 28: 350–353. https://doi.org/10.1111/j.1756-1051.2009.00600.x
Kim, H.S.,Kim, J.H., Shin, W. & Jo, B.Y. (2014) Mallomonas elevata sp. nov. (Synurophyceae), a new scaled Chrysophyte from Jeju Island, South Korea. Nova Hedwigia 98: 89–102. https://doi.org/10.1127/0029-5035/2013/0138
Kristiansen, J. (2000) Cosmopolitan chrysophytes. Systematics and Geography of Plants 70: 291–300. https://doi.org/10.2307/3668648
Kristiansen, J. (2002) The genus Mallomonas (Synurophyceae): a taxonomic survey based on the ultrastructure of silica scales and bristles. Opera Botanica 139: 1–218.
Kristiansen, J. & Preisig, H.R. (2007) Chrysophyte and Haptophyte Algae: 2 Teil/2nd Part: Synurophyceae. Spektrum Akademischer Verlag, Heidelberg, 252 pp.
Momeu, L. & Péterfi, L.S. (1979) Taxonomy of Mallomonas based on the fine structure of the scales and bristles. Contribu?ii Botanice Cluj-Napoca 1979: 13–20.
Nicholls, K.H. (1984) Four new Mallomonas species of the Torquatae series (Chrysophyceae). Canadian Journal of Botany 62: 1583–1591. https://doi.org/10.1139/b84-213
Nicholls, K.H. (1989) Descriptions of four new Mallomonas taxa (Mallomonadaceae, Chrysophyceae). Journal of Phycology 25: 292-300. https://doi.org/10.1111/j.1529-8817.1989.tb00125.x
Perty, M. (1852) Zur Kenntniss kleinster Lebensformen nach Bau, Funktionen, Systematik, mit Specialverzeichniss der in der Schweiz beobachteten. Jent & Reinert, Bern, 228 pp.
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