Aims: Biocontrol products based on microorganisms and natural substances are promising alternatives to chemical pesticides that could contribute to develop a more sustainable agriculture. Here, we investigated the potential of cell-free culture filtrates (CFCFs) from two strains of the Bacillus subtilis group to inhibit Zymoseptoria tritici, a major fungal pathogen of wheat.
Methods And Results: Foliar application of CFCFs from Bacillus velezensis GA1 and Bacillus sp.
Five (OA) leaves extracts were screened for their total phenolic (TPC), total flavonoid (TFC), condensed tannins (CTC) content, as well as their antioxidant capacity. The highest amount of TPC (661.66 ± 0.
View Article and Find Full Text PDFThe phosphogypsum (PG) endogenous bacterial community and endophytic bacterial communities of four plants growing in phosphogypsum-contaminated sites, (), (), () and () were investigated by amplicon sequencing. Results highlight a more diverse community of phosphogypsum than plants associated endophytic communities. Additionally, the bacterial culturable communities of phosphogypsum and associated plant endophytes were isolated and their plant-growth promotion capabilities, bioremediation potential and stress tolerance studied.
View Article and Find Full Text PDFHalophyte , an evergreen shrub inhabiting the Mediterranean region, has well-documented phytoremediation potential for metal removal from polluted sites. It is also considered to be a medicinal halophyte with potent activity against plant pathogens. Therefore, may be a suitable candidate for isolating endophytic microbiota members that provide plant growth promotion (PGP) and resistance to abiotic stresses.
View Article and Find Full Text PDFThe present study aimed to evaluate the potential protective and antioxidant effect of polysaccharides (PS) extracted from Ulva lactuca against thiacloprid (THC) induced nephrotoxicity and hepatotoxicity. The antioxidant capacity of PS was tested in vitro using ABTS radical scavenging activity and plasmid DNA cleavage assays andin vivo on adult male rats treated for 30 days. Animals were allocated into four groups: control; THC (22.
View Article and Find Full Text PDFLung fibrosis is a lethal interstitial disease characterized by massive proliferation of fibroblast inducing excessive collagen deposition. We aimed to investigate whether Date palm sap (DPS) can play a protective effect on bleomycin (BLM)-induced lung fibrosis in rats. MaleWistar rats were given single dose of BLM (4 mg/kg, intra-tracheal), while DPS (45 mg/kg, intraperitoneal) was administered three days later and continued for three weeks (BLM/DPS group).
View Article and Find Full Text PDFBackground: 2-Aminochromene derivatives display important pharmacological properties, including mainly antibiotic and anticancer activities.
Objective: The study aims to synthesize new chromene derivatives via a new approach using Grignard reagents, for the evaluation of their antibiotic and antifungal properties.
Method: A series of novel 3-cyano-4-aminochromene derivatives bearing alkyl substituents at the 4-position was prepared for biological evaluation.
Endophytic fungi of healthy and brittle leaf diseased (BLD) date palm trees ( L.) represent a promising source of bioactive compounds with biomedical, industrial, and pharmaceutical applications. The fungal endophytes isolate TDPEF34, and isolate TDPEF20 from healthy and BLD date palm trees, respectively, proved very effective in confrontation assays against three pathogenic bacteria, including two Gram-positive bacteria () and (), and one Gram-negative bacterium ().
View Article and Find Full Text PDFSeeds oils of Phalaris canariensis extracted by ultrasonication and cold maceration were evaluated for their physical characteristics, total phenol contents, fatty acid and sterol compositions as well as for their antioxidant, antibacterial and acetylcholinesterase activities. The physicochemical properties of ultrasonication and cold maceration oils respectively were: acid values (4.00 and 3.
View Article and Find Full Text PDFThe chemical composition, main physicochemical properties, and biological activities of Simmondsia chinensis (S. chinensis) seeds oil were studied. The results revealed that the physiochemical characteristics of S.
View Article and Find Full Text PDFContext: Hypercholesterolemia has significant cardiac consequences, since it is among the major risk factors of ischemic heart diseases.
Objective: The aim was searching the cardioprotective effect of chemical constituents from the sea lettuce Ulva lactuca upon hypercholesterolemic regime in mice.
Material And Methods: Mice were randomly divided into three groups: untreated group, hypercholesterolemic group, and mice receiving 1% cholesterol associated with U.
Context: Polysaccharides (PSs) from seaweeds have been reported to possess biological activity of potential medicinal values.
Objective: The current study was conducted to establish the protective effects of PS extracted from Ulva lactuca against oxidative stress induced by Thiacloprid (THC) in the rat reproductive system.
Materials And Methods: Rats were exposed either to THC, THC + PS (100 mg/kg), or THC + PS (200 mg/kg).
The present study aimed to examine the putative preventive effect of the ethanolic extract Date Palm Pollen (DPP, Phoenix dactylifera L., family Arecaceae) on isoproterenol-induced myocardial infarction (MI) in rats. Twenty four rats were randomly divided into four groups including control.
View Article and Find Full Text PDFThis study aimed to investigate the antimicrobial and cytotoxic activities of essential oil isolated by the hydro-distillation of aerial parts of Thymelaea hirsuta. The antimicrobial activity of the oil was evaluated against eight bacterial and three fungal pathogenic strains. The results revealed that the essential oil exhibited a moderate-to-potent anti-microbial activity against all the microorganisms tested.
View Article and Find Full Text PDFIn this study, we aimed to explore and compare the composition, metabolic diversity and antimicrobial potential of endophytic fungi colonizing internal tissues of healthy and brittle leaf diseased (BLD) date palm trees ( L.) widely cultivated in arid zones of Tunisia. A total of 52 endophytic fungi were isolated from healthy and BLD roots of date palm trees, identified based on internal transcribed spacer-rDNA sequence analysis and shown to represent 13 species belonging to five genera.
View Article and Find Full Text PDFThe present study revealed that the nutritive value of grape seeds ( L.) was 383.55±0.
View Article and Find Full Text PDFThe sap of the date palm "Lagmi" is a clear liquid, rich in sugars and minerals, with a pleasant flavour. Folk remedies based on the use of "Lagmi" for wound healing are still practiced. However, no studies investigated the relevance of "Lagmi" for wound healing.
View Article and Find Full Text PDFThis study investigated the chemical composition and evaluated the antioxidant, antimicrobial, cytotoxic and anti-acetylcholinesterase properties of Tunisian Origanum majorana essential oil. The findings showed that the oil exhibited high activity, particularly in terms of reducing power and β-Carotene bleaching, inducing higher IC50 values than BHT. The oil showed an important antimicrobial activity against 25 bacterial and fungal strains.
View Article and Find Full Text PDFContext: Zygophyllum album L. (Zygophyllaceae), commonly known as Bougriba, is widely used to treat diabetes, digestive tract spasm, and hypertension in folk medicine, in Tunisia.
Objective: This study investigates the antidiabetic, antidiarrheal, and antihypertensive activities of the leaves of the essential oil from Zygophyllum album (OZA) in alloxan-induced diabetic rats.
The use of microbial products has become a promising alternative approach to controlling plant diseases caused by phytopathogenic fungi. Bacteria isolated from the date palm tree rhizosphere of the Tunisian oasis ecosystem could provide new biocontrol microorganisms adapted to extreme conditions, such as drought, salinity and high temperature. The aim of this study was to screen bacteria isolated from the rhizosphere of the date palm tree for their ability to inhibit phytopathogenic fungi, and to identify molecules responsible for their antifungal activity.
View Article and Find Full Text PDFThis study aimed to evaluate the antithrombotic, anti-inflammatory and anti-cardiac remodeling properties of eugenol in isoproterenol-induced myocardial infarction in rats. Male Wistar rats were randomly divided into four groups, control, iso [100 mg/kg body weight was injected subcutaneously into rats at an interval of 24 h for 2 days (6th and 7th day) to induce MI] and pretreated animals with clopidogrel (0.2 mg/kg) and eugenol (50 mg/kg) orally for 7 days and intoxicated with isoproterenol (Iso + Clop) and (Iso + EG) groups.
View Article and Find Full Text PDFObesity is a chronic metabolic disorder that is associated with numerous diseases including hyperlipidemia, diabetes mellitus, hypertension, atherosclerosis, cardiovascular disease, and cancer. Cinnamic acid is a phytochemical compound having many biological effects and could be considered for the management of obesity. This study is aimed to assess the possible anti-obesity and cardioprotective properties of cinnamic acid (CA) in high fat diet-fed rats (HFD).
View Article and Find Full Text PDFObjective: Myocardial infarction remains the major cause of global death due to cardiovascular diseases. This study aimed to assess the protective role of oleuropein in attenuating the cardiac remodeling in isoproterenol-induced myocardial infarction in rats.
Methods And Results: Male Wistar rats were randomly divided into four groups, control, isoproterenol (Isop) and pretreated animals with oleuropein at two different doses (20 and 40 mg/kg) orally for 7 days and intoxicated with isoproterenol (Isop+Oleu20) and (Isop+Oleu40) groups.