Sarcinofilum Darienko et Pröschold, 2017

Darienko, Tatyana & Pröschold, Thomas, 2017, Toward a monograph of non-marine Ulvophyceae using an integrative approach (Molecular phylogeny and systematics of terrestrial Ulvophyceae II.), Phytotaxa 324 (1), pp. 1-41 : 24

Sarcinofilum Darienko et Pröschold gen. nov.

Synonym: Trichosarcina Nichols et Bold 1965 , J. Phycol. 1: 38 (diagnosis latina) (nom. invalid)

Diagnosis: Young filaments are uniserial and contain short cylindrical cells. Uniserial filaments contain 20–30 cells and are usually detached from the substrate. Vegetative cells contain parietal chloroplasts with a single pyrenoid and nucleus. The pluriserial filaments develop uniserially through several longitudinal divisions in perpendicular directions that result in the formation of sarcinoid-like three-dimensional structures. The pluriserial filaments can reach hundreds of cells, and then start to disintegrate into packages and become free-floating entities.

Asexual reproduction occurs through fragmentation of the filaments or special zoosporogenesis. Quadriflagellated zoospores develop into the vegetative cells of pluriserial filaments. Each cell forms only one zoospore.

Sexual reproduction is not observed.

The phylogenetically closely related genera differ by presence of pluriserial filaments and by differences in SSU-ITS sequences.

Type species (designated herein): Sarcinofilum mucosum (Broady) Darienko et Pröschold comb. nov.

Investigated strains: SAG 4.90, SAG 24.93, SAG 26.88, SAG 26.94, SAG 29.94 ( Fig. 14 ).

Figures

FIGURE 14. Overview about the morphology of the investigated Sarcinofilum strains grown on 3NBBM medium. A,B. SAG 4.90, C. SAG 24.93, D. SAG 29.94, E. 26.94, F. SAG 26.88.