Morphoanatomical characterization of filamentous green algae of district Lahore based on classical and modern microscopic technique

2019 ◽  
Vol 82 (5) ◽  
pp. 580-585 ◽  
Author(s):  
Mehwish Jaffer ◽  
Hammad Ashraf ◽  
Shabnum Shaheen
Keyword(s):  
Green Algae ◽  
Microscopic Technique ◽  
Filamentous Green Algae

scholarly journals Molecular Characterization of Epiphytic Bacterial Communities on Charophycean Green Algae

1998 ◽  
Vol 64 (11) ◽  
pp. 4384-4389 ◽  
Author(s):  
Madeline M. Fisher ◽  
Lee W. Wilcox ◽  
Linda E. Graham
Keyword(s):  
Green Algae ◽  
Bacterial Communities ◽  
Bacterial Species ◽  
Pcr Amplification ◽  
Cloning And Sequencing ◽  
16S Ribosomal Dna ◽  
Filamentous Green Algae ◽  
Sequence Types ◽  
Sheath Material

ABSTRACT Epiphytic bacterial communities within the sheath material of three filamentous green algae, Desmidium grevillii, Hyalotheca dissiliens, andSpondylosium pulchrum (class Charophyceae, order Zygnematales), collected from a Sphagnum bog were characterized by PCR amplification, cloning, and sequencing of 16S ribosomal DNA. A total of 20 partial sequences and nine different sequence types were obtained, and one sequence type was recovered from the bacterial communities on all three algae. By phylogenetic analysis, the cloned sequences were placed into several major lineages of the Bacteria domain: theFlexibacter/Cytophaga/Bacteroides phylum and the α, β, and γ subdivisions of the phylum Proteobacteria. Analysis at the subphylum level revealed that the majority of our sequences were not closely affiliated with those of known, cultured taxa, although the estimated evolutionary distances between our sequences and their nearest neighbors were always less than 0.1 (i.e., greater than 90% similar). This result suggests that the majority of sequences obtained in this study represent as yet phenotypically undescribed bacterial species and that the range of bacterial-algal interactions that occur in nature has not yet been fully described.

ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF A STRAIN OF BLUE-GREEN ALGAE-LYSING BACTERIUM FROM LAKE DIANCHI

2009 ◽  
Vol 33 (5) ◽  
pp. 860-865
Author(s):  
Lan-Lan LU ◽  
Gen-Bao LI ◽  
Yin-Wu SHEN ◽  
Ming-Ming HU ◽  
Yong-Ding LIU
Keyword(s):  
Green Algae ◽  
Lake Dianchi ◽  
Blue Green Algae ◽  
Identification And Characterization

Isolation and Characterization of Endotoxin from Cyanobacteria (Blue-Green Algae)

1981 ◽  
pp. 447-464 ◽  
Author(s):  
Georg Keleti ◽  
Jan L. Sykora ◽  
Laurie A. Maiolie ◽  
Dennis L. Doerfler ◽  
Iain M. Campbell
Keyword(s):  
Green Algae ◽  
Blue Green Algae ◽  
Isolation And Characterization

scholarly journals Urban mosquitoes and filamentous green algae: their biomonitoring role in heavy metal pollution in open wastewater channels in Nairobi, Kenya

2021 ◽  
Author(s):  
Geoffrey Kariuki Kinuthia ◽  
Veronica Ngure ◽  
Luna Kamau
Keyword(s):  
Heavy Metals ◽  
Green Algae ◽  
Toxic Elements ◽  
Tap Water ◽  
Aquatic Organisms ◽  
Industrial Area ◽  
Metal Exposure ◽  
Water Control ◽  
Filamentous Green Algae ◽  
Us Epa

Abstract Background Levels of Mercury (Hg), Lead (Pb), Chromium (Cr), Cadmium (Cd), Thallium (Tl), and Nickel (Ni) in samples of wastewater, filamentous green algae (spirogyra) and urban mosquitoes obtained from open wastewater channels in Nairobi industrial area, Kenya, was established. Industrial wastewater may contain hazardous heavy metals upon exposure. Aquatic organisms in wastewater may accumulate the toxic elements with time. Therefore, human population living in informal settlements in Nairobi industrial area risk exposure to such toxic elements. Biomonitoring using aquatic organisms can be key in metal exposure assessment. Results Pb, Cr, & Ni levels ranged from 3.08 to 15.31 µg/L while Tl, Hg, & Cd levels ranged from 0.05 to 0.12 µg/L in wastewater. Pb, Cr, Ni, & Cd levels were above WHO, Kenya & US EPA limits for wastewater but Hg was not. Metals in tap water (control) which ranged from 0.01 to 0.2 µg/L was below WHO, US EPA, & Kenya standard limits. Pb, Cr, Tl, & Ni levels in assorted field mosquitoes were 1.3 to 2.4 times higher than in assorted laboratory-reared mosquitoes. Hg & Cd concentrations in laboratory-reared mosquitoes (0.26 mg/L & 1.8 mg/L respectively) was higher than in field mosquitoes (0.048 mg/L & 0.12 mg/L respectively). Pb, Cr, Ni, & Cd levels in green filamentous algae were 110.62, 29.75, 14.45, & 0.44 mg/L respectively and above WHO limits for vegetable plants. Hg level in algae samples (0.057 mg/L) was below WHO standard limits but above Kenya & US EPA limits in vegetables. Correlations for Pb & Hg (r = 0.957; P < 0.05); Cd & Cr (r = 0.985; P < 0.05) in algae samples were noted. The metal concentrations in the samples were in the order, wastewater < mosquitoes < filamentous green algae. Conclusion Samples of wastewater, mosquitoes and filamentous green algae from open wastewater channels and immediate vicinity, in Nairobi industrial area (Kenya) contained Hg, Pb, Cr, Cd, Tl, and Ni. Urban mosquitoes and filamentous green algae can play a role of metal biomonitoring in wastewater. The possibility of urban mosquitoes transferring the heavy metals to their hosts when sucking blood should be investigated.

Direct and indirect toxic effects of cotton-derived cellulose nanofibres on filamentous green algae

2015 ◽  
Vol 122 ◽  
pp. 399-405 ◽  
Author(s):  
Michele Munk ◽  
Humberto M. Brandão ◽  
Sophie Nowak ◽  
Ludovic Mouton ◽  
Juliana C. Gern ◽  
...  
Keyword(s):  
Green Algae ◽  
Toxic Effects ◽  
Filamentous Green Algae ◽  
Cellulose Nanofibres

Nutritional characterization of traditional and improved dihé, alimentary blue-green algae from the lake Chad region in Africa

LWT ◽  
2015 ◽  
Vol 62 (1) ◽  
pp. 753-763 ◽  
Author(s):  
Marina Carcea ◽  
Mahamat Sorto ◽  
Caterina Batello ◽  
Valentina Narducci ◽  
Altero Aguzzi ◽  
...  
Keyword(s):  
Green Algae ◽  
Lake Chad ◽  
Blue Green Algae
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