Strain number NIES-4022  
Phylum Chlorophyta  
Class Chlorophyceae  
Scientific name Volvox sagami Nozaki & N.Ueki  
Synonym  
Former name Formerly identified as Volvox sp. Sagami, named based on Nozaki et al. 2026[2026 June]  
Common name Green alga ; Volvocine alga  
Locality (Date of collection) Lake Sagami, Kanagawa, Japan (2013-06-14)  
Latitude / Longitude 35.6093 / 139.188 
Habitat (Isolation source) Freshwater (Lake water)  
History < Nozaki, Hisayoshi  
Isolator (Date of isolation) Nozaki, Hisayoshi (2013-06-14)  
Identified by Nozaki, Hisayoshi  
State of strain Subculture; Unialgal; Clonal; Axenic[2018 Mar]  
Culture condition
(Preculture condition)
Medium:  AF-6VTAC  
Temperature:  20 C
Light intensity:  20 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  1 M  
Gene information ITS1-5.8S-ITS2 ( LC191309 ) , rbcL ( LC191317 ) , psbC ( LC191327 ) , act1 ( LC817975. )  
Cell size (min - max) 10 - 60 μm  
Organization Colonial; Flagellate 
Characteristics Other water bloom ; Phototaxis ; Endemic to Japan ; Homothallic ; Oogamy ; Haploid life cycle ; Resting zygote forming  
Other strain no. Other strain no. : 13-614-Vx13  
Remarks Fragile species to transportation stresses; Read and agree "How to order 4.1"; Axenic 
Movie  
Related strain information
(Large number of orders and same genus or species)
Related strain information
(Whose relevance due to simultaneous purchases and other information is inferred by AI)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-3780
Volvox africanus Green alga ; Volvocine alga   Freshwater (Lake water) Phototaxis ; Homothallic ; Monoecious with male ; Oogamy ; F1 strain (NIES-3784) ; Genome decoded strain (Yamamoto et al. 2021)  
NIES-694
Volvox aureus Green alga ; Volvocine alga   Freshwater (Stream water) Other water bloom ; Phototaxis ; Homothallic ; Dioecious ; Oogamy  
NIES-732
Volvox carteri Green alga ; Volvocine alga   Freshwater (Paddy soil) Phototaxis ; Authentic strain ; Heterothallic ; Dioecious ; Oogamy ; Female ; Crosses with NIES-733  
NIES-4029
Volvox ferrisii Green alga ; Volvocine alga   Freshwater (Pond water) Phototaxis ; Homothallic ; Monoecious ; Oogamy ; Resting zygote forming  
NIES-241
Volvox aureus Green alga ; Volvocine alga   Freshwater (Pond sediment) Phototaxis ; Fertility lost  
Related strain information
(Used in same reference)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-543
Volvox kirkiorum Green alga ; Volvocine alga   Freshwater Phototaxis  
NIES-4023
Volvox sp. Sagami Green alga ; Volvocine alga   Freshwater (Lake water) Other water bloom ; Phototaxis ; Endemic to Japan ; Homothallic ; Oogamy ; Haploid life cycle ; Resting zygote forming  
NIES-2736
Volvox ferrisii Green alga ; Volvocine alga   Freshwater (Paddy soil) Mixotrophic ; Phototaxis ; Homothallic ; Monoecious ; Oogamy ; Resting zygote forming ; Life cycle (Isaka et al. 2012)  
NIES-3988
Volvox ferrisii Green alga ; Volvocine alga   Freshwater (Pond water) Mixotrophic ; Phototaxis ; Homothallic ; Monoecious ; Oogamy ; Resting zygote forming ; Life cycle (Isaka et al. 2012, J. Phycol.)  
NIES-4593
Volvox sagami Green alga ; Volvocine alga   Freshwater (Reservoir water) Phototaxis ; Endemic to Japan ; Homothallic ; Monoecious  
Reference
Nozaki, H., Ueki, N., Isaka, N., Saigo, T., Yamamoto, K., Matsuzaki, R., Takahashi, F., Wakabayashi, K-I., Kawachi, M. 2016 A new morphological type of Volvox from japanese large lakes and recent divergence of this type and V. ferrisii in two different freshwater habitats. PLoS One, 11, e0167148 (article ID).
Strain(s): 273627373987398840214022402340244025402640274028 
PubMed: 27880842
DOI: 10.1371/journal.pone.0167148

Nozaki, H., Matsuzaki, R., Shimotori, K., Ueki, N., Heman, W., Mahakham, W., Yamaguchi, H., Tanabe, Y., Kawachi, M. 2024 Two species of the green algae Volvox sect. Volvox from the Japanese ancient lake, Lake Biwa. PLoS One, 19, e0310549 (article ID).
Strain(s): 543273627403874402140224258425943364337443446614662 
PubMed: 39312548
DOI: 10.1371/journal.pone.0310549

Nozaki, H., Matsuzaki, R., Takahashi, K., Yamamoto, K., Suzuki, S., Ootsuki, R., Kawachi, M., Tanabe, Y., Ueki, N. 2026 Molecular and morphological delineations of two homothallic monoicous species, Volvox sagami sp. nov. and V. ferrisii (Volvocales, Chlorophyceae) in Japan. Phycologia, 65, 189-198.
Keywords: Chlorophyta; nuclear genes phylogeny; reproductive isolation; sexual reproduction; Taxonomyvol; vocine algae
Strain(s): 2736273727393987398840214022402640294465453445364537459346614662 
DOI: 10.1080/00318884.2026.2683158

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