In the present investigation the effect of different concentrations of zinc and cadmium chloride (ZnCl2 and CdCl2) on one of the Cyanophyta "Chroococcus minutus" isolated from ponds in Sana'a Yemen was evaluated. The two heavy metals adversely affected cell division; however the protein and glucose contents of the cells were slightly affected. They caused destruction of chlorophyll a as the res...

Inositol and choline were present in varying amounts among the species of Rhodophyta, Phaeophyta, Chlorophyta, and Euglenophyta examined. However, in the two members of the order Fucales (division Phaeophyta) examined, no detectable amounts of choline were found. In contrast, the species of Cyanophyta examined contained no detectable amounts of either choline or inositol. All species of the fun...

Twelve stream segments were sampled four times in 1998-1999 (one sampling per season) in the drainage basin of the upper São Francisco River (19 masculine 45'-21 masculine 25'S, 49 masculine 05'-51 masculine 30'W), situated in Serra da Canastra National Park, at altitudes ranging from 1,175 to 1,400 m. The macroalgae survey resulted in 30 species, with a predominance of Cyanophyta (12 species =...

Information of phytoplankton flora polluted river ecosystems Bangladesh are scanty. The present study was undertaken to explore the at Dakshin Rupshi Station Shitalakhsya, Narayanganj, Dhaka. carried out from May 2017 March 2018 by collecting pelagic plankton samples bimonthly. A total 53 species under 36 genera were identified, which 51 have been illustrated through photomicrographic images an...

As a result of flora-systematic studies the Akdarya reservoir, 71 species and varieties (63 species, 16 variations, 1 form) were identified, which belong to 4 departments, 10 orders, 14 families, 24 genera. The composition is dominated by diatoms (Bacillariophyta), consisting 56 varieties, followed detached green (Cyanophyta) - 9 (8 form), yellowish (Xanthophyta) 4, (Chlorophyta) 2 algae. Hormo...