Cyanobacterial Diversity in the Soils of Russian Dry Steppes and Semideserts

Microbiology ◽  
2018 ◽  
Vol 87 (2) ◽  
pp. 249-260 ◽  
Author(s):  
A. D. Temraleeva
2016 ◽  
Vol 50 ◽  
pp. 125-141
Author(s):  
A. D. Temraleeva ◽  
S. A. Dronova

Nodosilinea epilithica Perkerson et Casamatta is reported for the first time for Russia. The sample was isolated from a typical chestnut soil in the zone of dry steppes (Volgograd Region) and its identity was confirmed by morphological and molecular analyses. The specific feature of the studied strain is its ability to form nodules at normal (60–75 μmol photons ∙ m-2 ∙ sec-1) light. The number of nodules is supposed to be related to the age of a cyanobacterial culture.


Rhizosphere ◽  
2021 ◽  
Vol 17 ◽  
pp. 100322
Author(s):  
Xiao-Chong Zhang ◽  
Jing-Yu Li ◽  
Jian-Li Liu ◽  
Cun-Xia Yuan ◽  
Yan-Nan Li ◽  
...  

2012 ◽  
Vol 35 (2) ◽  
pp. 110-119 ◽  
Author(s):  
Ângela Brito ◽  
Vitor Ramos ◽  
Rui Seabra ◽  
Arlete Santos ◽  
Catarina L. Santos ◽  
...  

Author(s):  
V. A. Pellinen ◽  
◽  
S. I. Shtel'makh ◽  
T. Yu. Cherkashina ◽  
◽  
...  

Author(s):  
Digvijay Verma ◽  
Vinay Kumar Singh ◽  
Rinku Bharati ◽  
Shyam Kishore ◽  
Seshu Lavania

In the present study, the cyanophycean diversity of the Lakhimpur-Khiri district, northern Uttar Pradesh, India, has been investigated for the first time. Algae samples were collected in plastic bottles and preserved in 3-4% formalin from Lakhimpur-Khiri district of northern Uttar Pradesh in different seasons from 2015 to 2016. The field photographs of the selected localities were also taken and the location of each site noted down. For the Microscopic study of Cyanophycean algae, the samples were stained with 1 % aqueous methylene blue solution according to the standard method. The observations and photomicrography were done with help of Nikon Labophot-11 microscope. A total of 31 cyanophycean algal taxa have been recorded from different water bodies of Lakhimpur-Khiri. These algal taxa belong to 14 genera and 9 families of the division Cyanophyata. Of these, Oscillatoria (7), Phormidium (4) and Lyngbya (3) are abundant.


2012 ◽  
Vol 8 ◽  
pp. 77-89 ◽  
Author(s):  
Mukesh Kumar ◽  
Rajan Kumar Gupta ◽  
AB Bhatt ◽  
SC Tiwari

Cyanobacteria constitute the largest, most diverse and widely distributed group of prokaryotes that perform oxygenic photosynthesis. These are known to comprise a diverse flora of morphologically distinct forms. Some species are epiphytic occurring on a variety of plants. The present study was undertaken to study the distribution pattern of epiphytic cyanobacterial flora in the foot-hills of Garhwal Himalaya. An extensive survey was carried out in different seasons at four cyanobacteria-rich localities (Dakpatthar, Kotdwar, Rishikesh and Laldhang) of Uttarakhand state of India. A total of 39 epiphytic cyanobacterial taxa (12 heterocystous and 27 non-heterocystous) belonging to 2 orders, 7 families and 17 genera were recorded from this region. Highest number of species (25) was reported from Rishikesh, followed by Kotdwar with 14 species and Laldhang and Dakpatthar each with 12 species. Principal Component Analysis showed significant variation for epiphytic cyanobacterial diversity among studied sites, whereas cluster analysis categorized epiphytic cyanobacterial diversity under two categories, viz. Cluster I with 9 species and Cluster II with 30 species. Study concludes that variation in epiphytic cyanobacterial diversity might be compared to physicochemical properties of soil and climatic conditions along altitudes.doi: http://dx.doi.org/10.3126/botor.v8i0.5955 Botanica Orientalis – Journal of Plant Science (2011) 8: 77-89


Author(s):  
Yongguang Jiang ◽  
Peng Xiao ◽  
Gongliang Yu ◽  
Gaofei Song ◽  
Renhui Li

Harmful cyanobacterial blooms pose a risk to human health worldwide. To enhance understanding on the bloom-forming mechanism, the spatiotemporal changes in cyanobacterial diversity and composition in two eutrophic lakes (Erhai Lake and Lushui Reservoir) of China were investigated from 2010 to 2011 by high-throughput sequencing of environmental DNA. For each sample, 118 to 260 cpcBA-IGS operational taxonomic units (OTUs) were obtained. Fifty-two abundant OTUs were identified, which made up 95.2% of the total sequences and were clustered into nine cyanobacterial groups. Although the cyanobacterial communities of both lakes were mainly dominated by Microcystis, Erhai Lake had a higher cyanobacterial diversity. The abundance of mixed Nostocales species was lower than that of Microcystis, whereas Phormidium and Synechococcus were opportunistically dominant. The correlation between the occurrence frequency and relative abundance of OTUs was poorly fitted by the Sloan neutral model. Deterministic processes such as phosphorus availability were shown to have significant effects on the cyanobacterial community structure in Erhai Lake. In summary, the Microcystis-dominated cyanobacterial community was mainly affected by the deterministic process. Opportunistically dominant species have the potential to replace Microcystis and form blooms in eutrophic lakes, indicating the necessity to monitor these species for drinking water safety.


2008 ◽  
Vol 2 (3) ◽  
pp. 308-320 ◽  
Author(s):  
Susanna A Wood ◽  
Andreas Rueckert ◽  
Donald A Cowan ◽  
S Craig Cary

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