A phytoremediation study: Selection of tropical and other vascular plants for decolorization of Poly R-478 dye

2006 ◽  
Vol 16 (4) ◽  
pp. 97-107 ◽  
Author(s):  
Daniel G. Paquin ◽  
Wenhao H. Sun ◽  
Chung-Shih Tang ◽  
Qing X. Li
Keyword(s):  
Vascular Plants ◽  
Study Selection ◽  
Selection Of

Phylogeny of the family Pasteurellaceae based on rpoB sequences

2004 ◽  
Vol 54 (4) ◽  
pp. 1393-1399 ◽  
Author(s):  
Bożena Korczak ◽  
Henrik Christensen ◽  
Stefan Emler ◽  
Joachim Frey ◽  
Peter Kuhnert
Keyword(s):  
16S Rdna ◽  
Dna Hybridization ◽  
Gene Encoding ◽  
Phylogenetic Studies ◽  
Study Selection ◽  
Gene Sequence Analysis ◽  
Rdna Sequencing ◽  
The Family ◽  
Type Strains ◽  
Selection Of

Sequences of the gene encoding the β-subunit of the RNA polymerase (rpoB) were used to delineate the phylogeny of the family Pasteurellaceae. A total of 72 strains, including the type strains of the major described species as well as selected field isolates, were included in the study. Selection of universal rpoB-derived primers for the family allowed straightforward amplification and sequencing of a 560 bp fragment of the rpoB gene. In parallel, 16S rDNA was sequenced from all strains. The phylogenetic tree obtained with the rpoB sequences reflected the major branches of the tree obtained with the 16S rDNA, especially at the genus level. Only a few discrepancies between the trees were observed. In certain cases the rpoB phylogeny was in better agreement with DNA–DNA hybridization studies than the phylogeny derived from 16S rDNA. The rpoB gene is strongly conserved within the various species of the family of Pasteurellaceae. Hence, rpoB gene sequence analysis in conjunction with 16S rDNA sequencing is a valuable tool for phylogenetic studies of the Pasteurellaceae and may also prove useful for reorganizing the current taxonomy of this bacterial family.

Phytodiversity of the "Samara plavni" regional landscape park

2020 ◽  
Vol 49 ◽  
pp. 17-25
Author(s):  
B. A. Baranovski ◽  
I. A. Ivanko ◽  
L. O. Karmyzova ◽  
Y. A. Harvart ◽  
V. V. Nicolaieva ◽  
...  
Keyword(s):  
Invasive Species ◽  
Vascular Plants ◽  
Vascular Plant ◽  
Species Selection ◽  
Submerged Vegetation ◽  
Surrounding Area ◽  
Adventive Flora ◽  
Regional Landscape ◽  
Natural Groups ◽  
Selection Of

Рresented the results of floroecological, hydrobotanical and geobotanical researches of the Regional Landscape Park "Samara Plavni". Regional Landscape Park (RLP) "Samara Plavni" is located in the waters of the Samara Bay, which was formed as a result of flooding of the floodplain of the Samara River during the creation of the Zaporozhye (Dnieper) Reservoir and the surrounding area. Conducted a systematic and bioecological analysis of the flora of vascular plants. Studied the composition of the rare fraction of flora and associated flora element. The research was carried out according to the generally accepted methods of floristic, geobotanical and hydrobotanical research. Bioecomorphic characteristics of species (selection of ecomorphs) are compiled according by A. L. Belgard ecomorph system using the following ecomorphs: biomorphs (one-, two-, perennials); heliomorphs (relation to light); hygromorphs (relation to the aquatic environment); tropomorphs (relation to nutrition); cenomorphs (growth in certain phytocenoses). Ecological characteristics of species were given from literature sources and according to the results of many years of own research. The analysis of the adventitious fraction was carried out at the time of drift – archaeophytes, neophytes. Advent status was determined on the basis of literature data. Vegetation of the regional landscape park "Samara Plavni" is represented by natural and semi-natural groups. The main area of shallow water is occupied by massifs of Phragmites australis (Cav.) Trin. ex Steud and groups of submerged vegetation. The tree and shrub vegetation of the park is represented by natural forest complexes, semi-natural groups and artificial plantations. Meadow and meadow-swamp vegetation of the landscape park is represented by complexes of associations of mesophytes and hygrophytes. The floristic list of vascular plant flora is 617 species. Hemicryptophytes, perennials, sciogeliophytes and heliophytes, mesotrophs, mesophytes, hygrophytes predominate here. Among cenomorphs, most species are represented by meadow (139) and forest (108) species. The rare fraction of flora is 73 species. There are 128 species of ruderal flora and 140 species of adventive flora, including 6 invasive species. At the time of entry into the study area allochthonous element of flora is divided into two groups: archaeophytes – 63 species (45%) and neophytes – 77 species (55%).

scholarly journals Selecting Potential Moss Species for Green Roofs in the Mediterranean Basin

Urban Science ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 57 ◽  
Author(s):  
Ricardo Cruz de Carvalho ◽  
Zulema Varela ◽  
Teresa Afonso do Paço ◽  
Cristina Branquinho
Keyword(s):  
Climate Change ◽  
Mediterranean Basin ◽  
Vascular Plants ◽  
Green Roof ◽  
Green Roofs ◽  
Potential Candidate ◽  
Moss Species ◽  
The Mediterranean ◽  
The Mediterranean Basin ◽  
Selection Of

Green roofs are important infrastructures to address the effects of climate change in urban areas. However, most studies and applications have been done in cooler and wetter regions of the northern hemisphere. Climate change will lead to more extreme weather events, such as increased drought and decreased precipitation with intense flash rain events. Increase desertification is expected especially in the Mediterranean Basin, where in summer, radiation and temperature are high and water is scarce. Therefore, while vascular plants increase water consumption in green roofs during warmer periods, mosses present themselves as potential candidates due to their poikilohydric nature, responding to the environmental availability of water, completely drying out and recovering upon rehydration. Although criteria for the selection of vascular plants adapted to the Mediterranean and suitable for green roofs have been developed, no information is available regarding the selection of mosses based on scientific criteria. Here we propose selection criteria for moss species based on ecological preferences according to Ellenberg’s values and help to define moss traits suitable for a nonirrigated, nature-based green roof that tolerates the Mediterranean climate. The main result is a table of potential candidate mosses that can be either used as standalone or in conjunction with vascular plants to decrease water usage and/or manage stormwater through an easily applicable selection methodology. For green roof practitioners, we proposed that acrocarpous mosses exhibiting turf/cushion life forms and colonist or perennial life strategies best fit the requirements for such a green infrastructure in extreme climate regions with scarce water resources.

Effects of vitamin E supplementation on exercise-induced oxidative stress: a meta-analysis

2014 ◽  
Vol 39 (9) ◽  
pp. 1029-1037 ◽  
Author(s):  
Vahan Stepanyan ◽  
Melissa Crowe ◽  
Nagaraja Haleagrahara ◽  
Bruce Bowden
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Vitamin E ◽  
Muscle Damage ◽  
Meta Analysis ◽  
Protective Effects ◽  
Study Selection ◽  
Exercise Induced ◽  
Study Designs ◽  
Selection Of

Tocopherols (commonly referred to as “vitamin E”) are frequently studied antioxidants in exercise research. However, the studies are highly heterogeneous, which has resulted in contradicting opinions. The aim of this review is to identify similar studies investigating the effects of tocopherol supplementation on exercise performance and oxidative stress and to perform minimally biased qualitative comparisons and meta-analysis. The literature search and study selection were performed according to Cochrane guidelines. A 2-dimensional study execution process was developed to enable selection of similar and comparable studies. Twenty relevant studies were identified. The high variability of study designs resulted in final selection of 6 maximally relevant studies. Markers of lipid peroxidation (malondialdehyde) and muscle damage (creatine kinase) were the 2 most frequently and similarly measured variables. Meta comparison showed that tocopherol supplementation did not result in significant protection against either exercise-induced lipid peroxidation or muscle damage. The complex antioxidant nature of tocopherols and low accumulation rates in muscle tissues could underlie an absence of protective effects.

scholarly journals A guide to improving the e-commerce user interface design

2005 ◽  
Author(s):  
◽  
Alveen Singh
Keyword(s):  
User Interface ◽  
South African ◽  
Interface Design ◽  
Ease Of Use ◽  
Test Cases ◽  
Independent Research ◽  
Research Institution ◽  
Internet Users ◽  
Study Selection ◽  
Selection Of

This study examines the efficiency, ease of use and ease of understanding of user interface designs implemented in current e-commerce websites. Four South African based e-commerce websites formed the test cases of this study. Selection of the test cases was based on the results and conclusions of previous surveys conducted by an independent research institution. The outcome of that survey identified the most popular e-commerce websites among South African internet users.

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