Iphianassa zackieohae
Taxonavigation
[edit]| Taxonavigation: Nostocales |
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Prokaryota |
Familia: Symphyonemataceae
Genus: Iphianassa
Species: Iphianassa zackieohae
Name
[edit]Iphianassa zackieohaePanou, Gkelis, 2021
References
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Description: The thallus is woolly, partly growing subaerophytically with densely coiled and/or parallel-arranged filaments (Panou & Gkelis, 2021). Filaments long, isopolar, very slightly attenuated towards the ends. Sometimes heteropolar young filaments are obvious germinating from hormogonia with a basal heterocyte (Panou & Gkelis, 2021). Filaments truebranched with a T-like type of branching, T-type of branching originating from the oblique division of an intercalary cell (Panou & Gkelis, 2021). Cell before branching often enlarged and forming a type of nodule. Heterocytes intercalary, 5.2-10.7 μm (8.15 μm ± 1.63, n = 30) wide and 6.7-15 μm (9.62 μm ± 2.85, n = 30) long with a pale yellow content. Mature filaments 7.8-12 μm (9.55 μm ± 0.99, n = 30) wide. Branches narrower than the main filament, 4.84-8.1 μm (6.58 μm ± 0.91) wide (Panou & Gkelis, 2021). The sheath is thin, firm and colorless (Panou & Gkelis, 2021). The trichomes constricted at the cross walls and extending slightly attenuated at the ends(Panou & Gkelis, 2021). Cells cylindrical or dolichoform to barrel-shaped, 5.16-13 μm (8.2 μm ± 1.9, n = 30) long at the mature filaments, and 8.17-15.6 μm (10.98 μm ± 2.34, n = 30) long at the young filaments, with smooth finely granulated content, blue-green to brownish, macroscopically violet (Panou & Gkelis, 2021). End cells are more or less rounded. Ensheathed hormogonia. Strain in grown cultures form young woolly mats, later joined in larger ones moving to top of the culture, with a part of the mat growing subaerophytically on top of the liquid media (Panou & Gkelis, 2021). Necridic cells are sometimes present (Panou & Gkelis, 2021).