Ahmed M. Abbas

Ahmed M. Abbas
King Khalid University | KKU · Department of Biology (College of Science)

About

36
Publications
7,225
Reads
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154
Citations
Citations since 2016
33 Research Items
150 Citations
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060

Publications

Publications (36)
Article
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The supply of clean drinking water is essential for a healthy life, but access to safe and healthy drinking water has become a key issue worldwide, especially in developing nations such as Pakistan. This research work focused on investigating the suitability of groundwater by measuring quality parameters, identification of pesticide pollutants, and...
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The development of new, safe, and effective methods of managing fungal pathogens is required. This study was conducted to perform an initial in vitro assessment of the antifungal activity of water-based plant extracts from three plants which are invasive in Egypt: Prosopis juliflora, Ipomoea carnea, and Leucaena leucocephala. These extracts were te...
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With an increasing demand for industrial dyes in our daily lives, the water conditions have become worse. Recently, the removal of such environmentally hazardous pollutants from wastewaters through photocatalytic degradation has been drawing increased attention. Three mesoporous nanophases of BiFeVOx.y as (Bi2FeIIIV1-yO5.5-y) visible light photocat...
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Ceramic materials have been used in various human health-related applications for considerable time. One of the important applications of ceramic materials is in electronics. Our work focuses on calcium titanate (CaTiO3). CaTiO3 is typically created via sintering. Gypsum particles is used to form calcium hydroxide, which is then combined with titan...
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Rice straw ash (RSA) geopolymer adobe bricks were produced using the geopolymerization reaction among the RSA, soil, and alkaline activator at the Biosystem Engineering Department, Faculty of Agriculture, Alexandria University, Egypt, to optimize adobe brick advantages. The bulk density, water absorption, compressive strength, and thermal conductiv...
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Herein, we introduce a low-cost, available, renewable, and effective solid adsorbent used for oilfield-produced-water treatment using a straightforward treatment process. In the present study, sheep dung ash was prepared using the same way this waste is produced in rural areas when sheep dung is used as a source of energy for cooking and heating: b...
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Crambe (Crambe abyssinica Hochist.) is an oilseed crop with high in euricic acid with industrial uses in production of biodiesel, nylon, plasticizers, and lubricants. Little information is available about Crambe response to phosphorus and potassium fertilization. The aim of this study was to determine the effect of phosphate (25 and 50 P2O5 kg Fed....
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The phreatophytic tree; Prosopis juliflora (P. juliflora), of the Fabaceae family is a widespread invasive plant. The present study aimed to examine the characteristics of the anti-cancer effects potentially induced by P. juliflora leaves extracts, and to compare the bioactivity of its chemical composition in methanolic and butanolic solvents. MCF-...
Article
Efforts to understand why some species become successful invaders and why some habitats are more at risk from invasive species is an important research focus in invasion ecology. With current global climate change, evaluation of the effects of shade and drought on cohabiting native and invasive species from extreme ecosystems is especially importan...
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This paper reports on the manufacture of ZnO nanoparticles (ZnO NPs) from Prosopis juliflora leaf extracts. Various methods of characterization were used, including X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), and transmission electron microscope TEM. ZnO NPs has a hexagonal wurtzite s...
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The present study analyses plant diversity and evaluates the relationship between edaphic variables and the distribution and grouping of plant species in the Aswan Reservoir area, South Egypt. The dominant families were Fabaceae, Poaceae, and Asteraceae, forming 38.82% of the total flora recorded. The main bulk of the flora recorded (50.59%) belong...
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This study aimed to produce an economic and stable biofungicide based on a new effective antagonistic strain (Trichoderma harzianum JF419706) via the exploitation of agro-industrial lignocellulosic residues as carriers for fungal growth to control the root rot diseases of vegetable crops. Trichoderma harzianum JF419706 showed a good resistance to a...
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Edited by L Sebastiani Efforts to understand why some species become successful invaders and why some habitats are more at risk from invasive species is an important research focus in invasion ecology. With current global climate change, evaluation of the effects of shade and drought on cohabiting native and invasive species from extreme ecosystems...
Article
Background: Heat stress is considered one of the most important environmental factors influencing plant physiology, growth, development, and reproductive output. The occurrence and damage caused by heat stress will likely increase with global climate change. Thus, there is an urgent need to better understand the genetic basis of heat tolerance, es...
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Invasive alien plant species impart considerable impacts that contribute to the decline of biodiversity worldwide. The ability of an invasive species to overcome barriers to establish and spread in new environments, and the long-term effects of plant invasions supporting their persistence are keys to invasion success. The capacity of introduced spe...
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This experiment was conducted to examine the influence of drying methods on the essential oil of chamomile (Matricaria chamomilla L.) and its chemical composition. Chamomile flower heads were dried using five different methods: sunlight for 72 h; shade for 1 week; oven at 40 °C for 72 h; solar dryer for 72 h; and microwave for 5 min. Drying methods...
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This study was conducted to evaluate the abundance and distribution pattern of three keystone Vachellia taxa in wadi Khoda and wadi Rahaba, Gebel Elba National Park, a protected area in south-eastern Egypt. These taxa included Vachellia tortilis subsp. tortilis , Vachellia tortilis subsp. raddiana , and Vachellia ehrenbergiana . In wadi Khoda, only...
Article
Background Germination and especially emergence can decrease significantly with depth. Aim Our main goal was to examine the effects of sand burial depth on seed germination and seedling establishment of two halophytes, Spartina densiflora and Atriplex portulacoides, with contrasted fruit traits. Methods The effects of sand burial to depths of 0 t...
Article
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Prosopis juliflora (P. juliflora) is a widespread phreatophytic tree, which belongs to the Fabaceae family. The goal of the present study is to investigate the potential anti-cancer effect of P. juliflora leave extracts and to identify its chemical composition. For this purpose, MCF-7 (breast), HepG2 (liver), and LS-174T (colorectal) cancer cell li...
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The present study surveyed the flora of the Jebel Fayfa region, SouthWest Saudi Arabia to analyze four elements of the vegetation: floristic diversity, life form, lifespan, and phytogeographical affinities. A total of 341 species of vascular plants were recorded belonging to 240 genera in 70 families, of which 101 species distributed among 40 famil...
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A study was carried out on soil samples collected from coastal area of Red Sea and from El-Souda Mountains, KSA. Biological, physical and chemical properties of each soil type had been investigated using X-ray fluorescence spectrometer, X-ray diffraction, scanning electron microscopy, UV–Vis-spectrophotometer, conductivity bridge, AgNO3 titration,...
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Invasive plants have very important ecological and socioeconomic impacts. Producing and dispersing many viable seeds are key plant functional traits for invaders. Ungulate grazing plays an important role in the endozoochorous seed dispersal within grasslands and rangelands. Grazing can be applied as a practical and economical control method for pla...
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Flooding has been described as one of the most important environmental factors determining the distribution of salt marsh plants. We studied the impact of five water levels (from well-drained to 8 cm deep) on the germination and establishment of the invasive cordgrass Spartina densiflora under controlled glasshouse conditions. The germination rate...
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Prosopis juliflora is a small mesquite tree native to Central and South America, with invasive populations in many tropical and subtropical regions worldwide, including North Africa and the Arab Gulf region where it has been introduced for livestock forage. In Egypt, the geographical pattern of its spread suggests that domestic sheep are important s...
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Fungal and mycotoxin contamination of milk products constitute a potential hazard to human health and food safety. Isolation and identifications of mold and yeast out of 140 milk products samples collected from dairy shops in Qena, Egypt were done through conventional microbiological methods. Aflatoxin-M1, aflatoxin-B1 and ochratoxin-A were charact...
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A taxonomic revision of Hibiscus trionum from Egypt was undertaken using morphological and cytological studies of field collections and herbarium specimens. The data indicate that all specimens so far collected in Egypt belong to H. tridactylites, rather than H. trionum. This paper includes a comprehensive description of H. tridactylites, its occur...
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Sewage sludge improves agricultural soil and plant growth, but there are hazards associated with its use, including high metal(loid) contents. An experimental study was conducted under greenhouse conditions to examine the effects of sewage sludge on growth of the invasive tree Prosopis glandulosa, as well as to determine its phytoremediation capaci...
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Seed germination and seedling establishment are critical stages in plant life history, and both processes may be affected when buried under soil. Our aim was to investigate the effects of soil burial on the germination and seedling establishment of invasive Prosopis juliflora (Fabaceae). We studied the effects of burial, from soil surface to 4 cm d...
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Endozoochory has been recognised as the most important dispersal mechanism in invasive Prosopis species, because their sugary, tasty pods attract animals and because some of their seeds remain intact after passing through some animals' digestive systems. In this study, we evaluated the role of the camel (Camelus dromedarius) as a potential disperse...
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Salinity is a potential environmental stress factor for plants. Improving plant growth under salinity stress requires an understanding of resistance mechanisms. Salinity stress resistance is related to both salinity avoidance and tolerance. In this study, interspecific differences in salinity stress resistance, avoidance, and tolerance were examine...
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Contamination with heavy metals is a critical problem facing large areas of agricultural soils. Seed, a developmental stage, is considered highly protective against environmental stresses. This study aimed to examine the influence of two heavy metals; copper and lead, on the germination of Acacia tortilis, A. raddiana, and Prosopis juliflora. See...
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The predicting and spatial distribution of most invasive plants is poorly documented and studied. This study examined the spatial distribution of a successful invasive plant, Mesquite (Prosopis juliflora), in Wadi Merikwan in Gabel Elba National Park. The occurrence data of P. juliflora and five environmental variables; distance from the main road,...
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Experimental studies to determine the nature of ecological interactions between invasive and native species are necessary for conserving and restoring native species in impacted habitats. Theory predicts that species boundaries along environmental gradients are determined by physical factors in stressful environments and by competitive ability in b...
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A commercial use of lasers for weed and invasive plant control, however, require a systematic investigation of the irradiance exposure time of laser beam effect on different plant species, growth stages, etc. In this study, we investigated the impact of laser treatment directed towards the apical meristems of seedlings of the invasive tree Prosopis...
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Germination and emergence of halophytes may decrease significantly by seed burial in dead plant material, or wrack, which is common and abundant in tidal marshes. The effects of plant debris (wrack) burial on seed germination and seedling establishment of Spartina densiflora, an invasive cordgrass, were studied under greenhouse conditions and compa...

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