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Biofilm Development, Plant Growth Promoting Traits and Rhizosphere Colonization by <i>Pseudomonas entomophila</i>FAP1: A Promising PGPR

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Advances in Microbiology 2018年第3期8卷 235-251页

作者： firoz ahmad ansari Iqbal ahmad Biofilm Research Lab. Department of Agricultural Microbiology Faculty of Agricultural Sciences Aligarh Muslim University Aligarh India

Among the diverse soil bacteria, plant growth promoting rhizobacteria (PGPR) mark an important role in enhancing plant growth through a range of beneficial functions. This is mainly achieved by effective rhizosphere colonization by PGPR. Biofilm development by PGPR is considered as a survival strategy over the planktonic mode of growth under stress and natural conditions. Since the performance of microbial inoculants under field conditions is not always consistent due to various biotic and abiotic factors affecting survival, colonization and functions. Therefore, the rhizobacteria with efficient colonization ability and exhibiting multiple PGP traits are expected to perform better. We hypothesized that the biofilm forming ability of PGPR on plant root will be an added advantage to rhizosphere colonization. Therefore, we have selected a promising isolate of PGPR through random screening programme from rhizoplane of wheat (Triticum aestivum). The selection was based on biofilm development ability, multifarious PGP activities (production of indole acetic acid, sidero-phore, phosphate solubilization, hydrogen cyanide, ammonia production and biocontrol activity) and tolerance to salinity and heavy metals. The selected isolate was identified by 16 s rRNA partial gene sequencing as Pseudomonas entomophila-FAP1. The strain FAP1 formed strong biofilm in microtitre plate, glass surface as well as on the roots of wheat seedlings. Biofilm forming capacity of the FAP1 was characterized by scanning electron microscopy and confocal laser scanning microscopy. FAP1 exhibited biofilm-related traits such as the production of exopolysaccharides, EPS (1501.33 ± 1.08 μg ml-1), alginate (212.81 ± 1.09 μg ml-1), swarming motility (22 ± 1.36 mm), swimming motility (31 ± 2.12 mm) and cell surface hydrophobicity (63%). Rhizosphere colonization by FAP1 was found 7.5 Log CFU g-1 of soil comparable with rhizoplane colonization (7.2 Log CFU g-1 of root). Therefore, biofilm formation on plant root

关键词： Biofilm PGPR Rhizosphere Colonization Pseudomonas entomophila SEM and CLSM

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Sulfamic acid:An efficient,cost-effective and green catalyst for crossed-aldol condensation of ketones with aromatic aldehydes under solvent-free

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Chinese Chemical Letters 2011年第9期22卷 1029-1032页

作者： Amin Rostami firoz ahmad-Jangi Department of Chemistry Faculty of ScienceUniversity of Kurdistan

Aromatic aldehydes undergo crossed-aldol condensation with ketones in the presence of catalytic amount of sulfamic acid （SA） to afford the corresponding α,β-unsaturated aldol products under solvent-free conditions... 详细信息

关键词： Aldehydes Ketones Crossed-aldol condensation β-Unsaturated aldol Catalyst Sulfamic acid

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Observed Trends in Extreme Temperature over the Klang Valley, Malaysia

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Advances in Atmospheric Sciences 2019年第12期36卷 1355-1370页

作者： ahmad Norazhar Mohd YATIM Mohd Talib LATIF Fatimah AHAMAD Md firoz KHAN Mohd Shahrul Mohd NADZIR Liew JUNENG Space Science Centre Institute of Climate ChangeUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Faculty of Science and Natural Resources Universiti Malaysia Sabah88400 Kota KinabaluSabahMalaysia School of Environmental and Natural Resource Sciences Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Centre for Tropical Climate Change System Institute of Climate ChangeUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Department of Chemistry Faculty of ScienceUniversity of Malaya50603 Kuala LumpurMalaysia

This study investigates the recent extreme temperature trends across 19 stations in the Klang Valley, Malaysia, over the period 2006^-16. Fourteen extreme index trends were analyzed using the Mann-Kendall non-parametric test, with Sen’s slope as a magnitude estimator. Generally, the annual daily mean temperature, daily mean maximum temperature, and daily mean minimum temperature in the Klang Valley increased significantly, by 0.07°C yr^-1, 0.07°C yr^-1 and 0.08°C yr^-1, respectively. For the warm temperature indices, the results indicated a significant upward trend for the annual maximum of maximum temperature, by 0.09°C yr^-1, and the annual maximum of minimum temperature, by 0.11°C yr^-1. The results for the total number of warm days and warm nights showed significant increasing trends of 5.02 d yr^-1 and 6.92 d yr^-1, respectively. For the cold temperature indices, there were upward trends for the annual minimum of maximum temperature, by 0.09°C yr^-1, and the annual minimum of minimum temperature, by 0.03°C yr^-1, concurrent with the decreases in the total number cold days (TX10P), with -3.80 d yr^-1, and cold nights (TN10P), with -4.33 d yr^-1. The 34°C and 37°C summer days results showed significant upward trends of 4.10 d yr^-1 and 0.25 d yr^-1, respectively. Overall, these findings showed upward warming trends in the Klang Valley, with the minimum temperature rate increasing more than that of the maximum temperature, especially in urban areas.

关键词： climate change extreme temperature trend urban environment tropical area

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GIS-based assessment of land-agroforestry potentiality of Jharkhand State, India

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Regional Sustainability 2022年第3期3卷 254-268页

作者： firoz ahmad Nazimur Rahman TALUKDAR Laxmi GOPARAJU Chandrashekhar BIRADAR Shiv Kumar DHYANI Javed RIZVI Vindhyan Ecology and Natural History Foundation Mirzapur231001India Center for International Forestry Research and World Agroforestry(CIFOR-ICRAF) New Delhi110012India Wildlife Conservation Research Centre Department of Ecology and Environmental SciencesAssam UniversitySilchar788011India Centre for Biodiversity and Climate Change Research UdhayanHailakandi788155India

Scaling-up agroforestry area in various forms is a scientific path towards achieving various sustainable development goals(SDGs),especially improving livelihood,reducing poverty,conserving environment and biodiversity,and transforming climate *** this study,the effort was made to investigate the land potentiality for agroforestry at the district level in Jharkhand State,India by applying geographic information system(GIS)modeling technology using climate(temperature and precipitation),topography(slope and elevation),ecology(percent tree cover and normalized difference vegetation index(NDVI)),and social economics(poverty rate and tribal dominance)*** results revealed that six districts of Jharkhand State had agroforestry potential greater than 60.00%.The highest agroforestry suitability was found in Simdega District(78.20%),followed by Pakur(76.25%),West Singhbhum(72.70%),Dumka(68.84%),Sahibganj(64.63%),and Godda(63.43%)***,we identified 513 out of 32,620 villages of Jharkhand State potentially suitable(agroforestry suitability≥80.00%)for agroforestry with the objective of life improvement among marginalized *** the outside forest area,8.58%of the total geographical land of Jharkhand State was wasteland,much of which was found suitable for agroforestry *** agroforestry setups in those wastelands can absorb 637 t carbon annually in long run and can provide direct economic benefits to the locals besides additional income for carbon emission *** study concluded that Jharkhand State has plenty of high potential land for agroforestry,and adoption of agroforestry at the village level must be given high *** study could guide the nodal authorities to prepare appropriate strategies for scaling the tree cover in agroforestry systems in village-level landscape planning which needs policy attention and investment for achieving 9 out of the 17 SDGs.

关键词： Agroforestry suitability Land potential Climate change Topography Food security GIS modeling Poverty alleviation Sustainable development goals (SDGs)

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Studying Malaria Epidemic for Vulnerability Zones: Multi-Criteria Approach of Geospatial Tools

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Journal of Geoscience and Environment Protection 2017年第5期5卷 30-53页

作者： firoz ahmad Laxmi Goparaju Abdul Qayum Vindhyan Ecology and Natural History Foundation Mirzapur India Department of Environment and Forest Govt. of Arunachal Pradesh Itanagar India

Introduction: Despite serious interventions worldwide, malaria remains a significant cause of global morbidity and mortality. Malaria endemic zones are predominant in the poorest tropical regions of the world, especially in continental Africa and South-Asia. Major Indian population reside in malaria endemic zones which are tribal dominated and inaccessible. Lack of suitable data, reporting and medical facilities in malaria vulnerable regions handicaps the decision makers in taking adequate steps. Natural resources were mapped to establish their possible linkage with malaria incidence and to delineate malaria hotspots using geo-spatial tools. Methods: Remote sensing data along with various ancillary data such as socio-economic (population in general, child population, tribal population, literacy), epidemiology (Malaria API and Pf cases) and environmental parameters (wetness, forest cover, rainfall, aspect, elevation, slope, drainage buffer, and breeding sites) were integrated on GIS platform using a designed weight matrix. Multi criteria evaluation was done to generate hotspot for effective monitoring of malaria incidences. Results: Various thematic layers were utilized for integrated mapping, and the final map depicted 59.1% of the study area is vulnerable to high to very high risk of malaria occurrence. Manoharpur Administrative Block consisted of 89% of its area under high to very high probability of malaria incidence and it needs to be prioritized first for preventing epidemic outbreak. Various village pockets were revealed for prioritizing it for focused intervention of malaria control measures. Conclusions: Geospatial technology can be potentially used to map in the field of vector-borne diseases including malaria. The maps produced enable easy update of information both spatially and temporally provide effortless accessibility of geo-referenced data to the policy makers to produce cost-effective measures for malaria control in the endemic regions.

关键词： Geo-Spatial Tools GIS Integrated Mapping Multi-Criteria Analysis Remote Sensing

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A review on therapeutic potential of Nigella sativa:A miracle herb

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Asian Pacific Journal of Tropical Biomedicine 2013年第5期3卷 337-352页

作者： Aftab ahmad Asif Husain Mohd Mujeeb Shah Alam Khan Abul Kalam Najmi Nasir Ali Siddique Zoheir A.Damanhouri firoz Anwar Health Information Technology Department Jeddah Community CollegeKing Abdulaziz University Department of Pharmaceutical Chemistry Faculty of PharmacyHamdard University Department of Pharmacognosy Faculty of PharmacyHamdard University Oman Medical College Department of Pharmacology Faculty of PharmacyHamdard University Department of Pharmacognosy College of PharmacyKing Saud University Department of Pharmacology Faculty of MedicineKing Abdulaziz University Siddhartha Institute of Pharmacy

Nigella sativa(***)(Family Ranunculaceae)is a widely used medicinal plant throughout the *** is very popular in various traditional systems of medicine like Unani and Tibb,Ayurveda and *** and oil have a long history of folklore usage in various systems of medicines and *** seeds of *** have been widely used in the treatment of different diseases and *** Islamic literature,it is considered as one of the greatest forms of healing *** has been recommended for using on regular basis in Tibb-e-Nabwi(Prophetic Medicine).It has been widely used as antihypertensive,liver tonics,diuretics,digestive,anti-diarrheal,appetite stimulant,analgesics,anti-bacterial and in skin *** studies on *** have been carried out by various researchers and a wide spectrum of its pharmacological actions have been explored which may include antidiabetic,anticancer,immunomodulator,analgesic,antimicrobial,anti-inflammatory,spasmolytic,bronchodilator,hepato-protective,renal protective,gaslro-prolective,antioxidant properties,*** to its miraculous power of healing,*** has got the place among the top ranked evidence based herbal *** is also revealed that most of the therapeutic,properties of this plant are due to the presence of thymoquinone which is major bioactive component of the essential *** present review is an effort to provide a detailed survey of the literature on scientific researches of pharmacognostical characteristics,chemical composition and pharmacological activities of the seeds of this plant.

关键词： Nigella sativa Miracle herb Ranunculaceae Habat-ul-Sauda Thymoquinone Tibb-e-Nabwi Black seeds Anti-diabetic Antioxidant

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