Jaagichlorella sphaerica (Tschermak-Woess) Darienko & Pröschold 2019

Darienko, Tatyana & Pröschold, Thomas, 2019, The genus Jaagichlorella Reisigl (Trebouxiophyceae, Chlorophyta) and its close relatives: an evolutionary puzzle, Phytotaxa 388 (1), pp. 47-68 : 65

Jaagichlorella sphaerica (Tschermak-Woess) Darienko & Pröschold comb. nov. ( Fig. 7A–J )

Basionym: Chlorella sphaerica Tschermak-Woess, 1988 , Plant Syst. Evol. 159: 136.

Emended description: SSU and ITS rDNA sequences (GenBank: MH780945) and ITS-2 Barcode BC- 5 in Fig. 3 .

Comment: The morphological features of the authentic strain have been described by Darienko & Pröschold (2018). This species is characterized by its ecology (photobiont of the lichen Pseudocyphellaria carpoloma ), origin ( New Zealand) and CBCs/HCBCs in the conserved region of the ITS-2 sequences.

Figures

FIGURE 3. Comparison of the conserved region of ITS-2 among the species of Jaagichlorella and Kalinella. Extraction of this region and translation into a number code for its usage as barcode. The ‘/’ indicated the position of the site loop in Helix III, which we excluded from the barcode. Number code for each base pair: 1 = A-U; 2 = U-A; 3 = G-C; 4 = C-G; 5 = G•U; 6 = U•G; 7 = pyrimidine-pyrimidine mismatch; 8 = deletion, single or unpaired bases. The phylogenetic tree shown was calculated using the neighbor-joining method based on the data set (69 number-coded positions of 11 haplotypes) using PAUP 4.0b10.

FIGURE 7. Morphology and phenotypic plasticity of Jaagichlorella sphaerica (UTEX 2485; A.–J.) and Kalinella apyrenoidosa var. japonica (SAG 2203; K.–R.); scale bar = 10 μm.