A5033386811- Algal biology and biofuel production
- Biocrusts and Microbial Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Community Ecology and Physiology
- Photosynthetic Processes and Mechanisms
- Steroid Chemistry and Biochemistry
- Microbial bioremediation and biosurfactants
- Mycorrhizal Fungi and Plant Interactions
- Diatoms and Algae Research
- Soil and Environmental Studies
- Phytochemical Studies and Bioactivities
- Plant-Microbe Interactions and Immunity
- Plant Pathogens and Fungal Diseases
- Marine and coastal ecosystems
- Fungal Biology and Applications
- Microbial Metabolism and Applications
- Light effects on plants
- Petroleum Processing and Analysis
- Hormonal Regulation and Hypertension
- Pharmacogenetics and Drug Metabolism
- Plant tissue culture and regeneration
- Marine Sponges and Natural Products
- Plant Ecology and Soil Science
- Medicinal plant effects and applications
- Water Quality Monitoring and Analysis
Islamic Azad University of Gorgan
2007-2023
Islamic Azad University, Science and Research Branch
2018
Shahid Beheshti University
2004-2007
Tehran University of Medical Sciences
2006
AbstractFischerella ambigua was isolated during a screening program from soil sample collected paddy-fields in the north of Iran. It shown that it excreted broad-spectrum antibacterial and antifungal substance culture medium. Bioassay-guided fraction medium F. led to isolation novel antimicrobial substance, which named parsiguine, exhibited activities. The structure parsiguine determined by spectroscopic methods, including NMR, MS, IR, UV.Keywords: : AntibioticAntimicrobial...
Antifungal and antibacterial activity of the microalgae from paddy fields in south Iran were studied. Soil samples collected Fars province cultured BG11 medium. Supernatants, methanolic hexane extracts biomass 60 strains isolated screened against six bacteria four fungi. The culture supernatants 21 8 exhibited significant effect 17 showed antifungal effect. No antimicrobial was detected no inhibited growth In present screening, Chroococcus dispersus, Chlamydomonas reinhardtii Chlorella...
Soil cyanobacteria isolated from the paddy fields of seven provinces in Iran was evaluated for antimicrobial activity. Aqueous, petroleum ether, and methanol extracts 76 microalgae were examined properties against four bacteria two fungi. Of total microalgae, 22.4% (17 cyanobacteria) exhibited effects. Selected with positive activities members families Stigonemataceae, Nostocaceae, Oscillatoriaceae, Chroococcaceae. Growth Bacillus subtilis Persian Type Culture Collection (PTCC) 1204...
Nitrogen fixation blue-green algae make a major contribution to the fertility of soil. It has been suggested that (BGA) assist higher plant growth by supplying substances. There are numerous works about roles in paddy soils and rice but little on other plants. In this research, 19 morphospecies belonging three families heterocystous non-heterocystous from several fields north Iran were identified out which seven species new Iran.
This investigation tested the hypothesis that native cyanobacteria can acclimatize and grow under combination of environmental factors and/or how does their process change with age culture? Here, we tried to combine multiple simulated what happens in natural ecosystems. We analyzed physiological response terrestrial cyanobacterium, Cylindrospermum sp. FS 64 effect different salinity (17, 80, 160 mM) alkaline pHs (9 11) at extremely limited carbon dioxide concentration (no aeration) up 96 h....
The algal flora of five stations from paddy-fields Golestan Province was investigated between October 2006 and September 2007. Eight filamentous heterocystous Nostocacean are recorded here for the first time paddy fields iran: Cylindrospermum licheniforme, stangnale, Cylindrospermopsis raciborskii, Calothrix ghosei, Gloeotrichia longiarticulata, Aulosira implexa var. crassa, Tolypothrix conglutionata var colorata, Scytonema multiramosum. stagnale, implexa, multiramosum, were dominant species...
Investigating the physiological responses of three endaphic strains
The possibility of change in the phycobilisome status, photosynthetic pigments, ratios and light parameters soil cyanobacteria <i>Fischerella</i> sp. FS 18 has been investigated by two pre-treatment factors, with neutral extreme alkaline pH (7 9) over a short period. After purification, were subjected to treatment for under one hour at 20 min intervals (20, 40 60 min). A sample was selected as control without pre-treatment. Colorimetric assays (phycocyanin, alophycocyanin,...
Growth and Carbohydrate Compositions of Three Gossypium Species Inoculated with Rhizophagus intraradices under Salinity Stress