نتایج جستجو برای: bioindicators plants

تعداد نتایج: 198991  

Journal: :Tree physiology 2014
Eva Fleta-Soriano Beatriz Fernández-Marín José Miguel Olano Fátima Míguez Jon Molinero Jesús Julio Camarero José Ignacio García-Plazaola

Tocochromanols are the most abundant lipid-soluble antioxidants in plants. Among them, α-tocopherol (α-Toc) shows a particularly high sensitivity to environmental stressors and its content is used as a stress biomarker even in non-photosynthetic tissues. Nevertheless, the presence of tocochromanols has not been described yet in the xylem of woody plants, even when their functions regarding cell...

2012
Juan A. Amat Andy J. Green

One of the aims of monitoring is to provide information for ecological assessment, which can provide early warning of changes that could negatively affect species or ecosystems (Burger 2006). Since it is impractical to monitor all biological and physical components, a few of them can be used as indicators of wider conditions. Biological components chosen with this aim are called bioindicators (...

2013
Karolina ŚWIECH

Introduction Parsley (Petroselinum crispum) is one of herbs the most extensively used as a condiment for garnishing and seasoning, but also in perfumery, and in a larger extent in folk medicine. It is a biennial plant belonging to Apiaceae family (Simon and Quinn, 1988) [11]. Parts used in therapeutics are ripe fruits (seeds), root and aboveground parts of the plant. The curiosity is that parsl...

Journal: :Quality of life 2021

Air pollution is a major concern throughout the universe due to effects on living and non-living things. Before an area said be polluted, there need carry out bottom-up or top-down assessment of environment. Mosses have been widely employed as cheap bioindicators atmospheric pollution. It reduces time-frame spent in monitoring results are reliable. Several types research undertaken spatial temp...

Journal: :International journal of systematic and evolutionary microbiology 2001
D Fritze R Pukall

On the basis of high DNA-DNA reassociation values and confirmatory automated RiboPrint analysis, two aerobic spore-forming strains hitherto allocated to Bacillus subtilis and used as bioindicators (DSM 675, hot-air sterilization control; DSM 2277, ethylene oxide sterilization control) are reclassified as Bacillus atrophaeus.

Journal: :Environmental Control in Biology 2021

The purpose of this work is to comparatively assess pollen viability five plant species growing in different areas the city Aktobe, Kazakhstan (N 50°18´, W 57°10´). Pollen was assessed through iodine staining on samples grains harvested between April and June 2017 from 100 plants 5 industrial zones, parks, along highways: Ulmus laevis Pall., pinnato-ramosa Dieck., Acer negundo L., Syringa vulga...

Journal: :Environmental Pollution 2021

Amongst other threats, the world’s oceans are faced with man-made pollution, including an increasing number of microparticulate pollutants. Sponges, aquatic filter-feeding animals, able to incorporate fine foreign particles, and thus may be a potential bioindicator for To address this question, 15 coral reef demosponges sampled around Bangka Island (North Sulawesi, Indonesia) were analyzed natu...

2007
LARS HÅKANSON ANDREAS C. BRYHN THORSTEN BLENCKNER

This paper presents a comparative study based on a very comprehensive set of empirical data from many international data bases including fresh water systems, coastal brackish water areas and marine coastal areas. We present a general trophic level classification system (oligotrophic, mesotrophic, eutrophic and hypertrophic categories) for sites/areas characterised by a wide range of salinities....

Journal: :iranian journal of environmental sciences 0
luu pham vietnam academy of science and technology (vast), institute of tropical biology, 85 tran quoc toan street, district 3, ho chi minh city, vietnam

the present study aims to have a comparative study of the results, from biological monitoring as well as conventional method, based on physico-chemical variables. water quality index (wqi) and planktonic diatom metrics have been used to determine water quality and ecological conditions of the dong nai river (dnr) and canonical correspondence analysis (cca) to find out the main environmental var...

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