Abstract Baculoviruses are considered as effective bio pesticides except of being not active under sunlight conditions. The aim of this study is to evaluate the capability of moringa extract to prolong virus activity under Egyptian field conditions especially that Moringa proved to be strong protective m...
Abstract The haemostatic efficacy of different extract types of Satureja thymbra L., Thymbra spicata L. (Lamiaceae) and Verbascum fruticulosum Post. (Scrophulariaceae) was evaluated in this study via the Prothrombin time (PT) and Activated partial thromboplastin time (aPTT) analysis. Aqueous, methanol an...
Abstract It is a fact that the regions that cultivate the most maize crop do not have fully adequate technologies to measure productivity losses caused by irregularities in water availability. The objective of this study was to evaluate the physiological characteristics of maize hybrids tolerant (DKB 390...
Anwar, T;
Qureshi, H;
Parveen, N;
Bashir, R;
Qaisar, U;
Munazir, M;
Yasmin, S;
Basit, Z;
Mahmood, R T;
Nayyar, B G;
Khan, S;
Khan, S A;
Qureshi, M M;
Wali, M.
Abstract Due to increased number of herbicide resistant weeds, it is needed to explore the allelopathic potential of plants as an alternative. The research was conducted to investigate allelopathic effects of Carica papaya L. leaf powder and aqueous extract on seeds as well as pre-germinated seeds of Ave...
BACKGROUND: Piercing/sucking insect pests in the order Hemiptera causes substantial crop losses by removing photoassimilates and transmitting viruses to their host plants. Cloning and heterologous expression of plantderived insect resistance genes is a promising approach to control aphids and other sap-s...
Pinellia/química,
Control Biológico de Vectores,
Áfidos/patogenicidad,
Hojas de la Planta/química,
Resistencia a la Enfermedad,
Virus de Plantas,
Regiones Promotoras Genéticas,
Plantas Modificadas Genéticamente,
Nicotiana,
Protección de Cultivos,
Reacción en Cadena de la Polimerasa,
Southern Blotting,
Transgenes
Introducción: En los sistemas fluviales colombianos ha sido poco estudiada la fragmentación del material alóctono por parte de los insectos acuáticos. Uno de los organismos trituradores más abundantes en las corrientes tropicales de América es el tricóptero del género Phylloicus (Calamoceratidae)...
Abstract Diospyros kaki L. or Costata cultivar is the main persimmon variety progressively consumed in the Egyptian market and exportation. The objective of this study was to investigate the bioprotective effects of the alcoholic extract of fruits as well as leaves of D. kaki using in-vivo rat models. Pe...
Abstract Essential oils, which may be extracted from several parts of plants, have different biological activities. The Brazilian Cerrado has a large variety of plants that yield essential oils, even though many have not been studied yet. Taking into account the biodiversity of this biome, this study ai...
BACKGROUND: Although bioactive metabolites capable of causing oxidative photo-necrosis in plant tissues have been identified in fungi, little is known about this type of mechanism in bacteria. These metabolites act as photosensitizers that generate reactive oxygen species (ROS) capable of causing damage ...
Pseudomonas/fisiología,
Pseudomonas/metabolismo,
Carica/microbiología,
Hojas de la Planta/microbiología,
Especies Reactivas de Oxígeno,
Enfermedades de las Plantas/microbiología,
Ácidos,
Oxígeno Singlete/metabolismo,
Necrosis,
Fotooxidación,
Luz
The Brazilian flora is known for its vast biodiversity; however, many species have been still little studied regarding to their chemical composition and biological potential. Thus, this study aimed to determine the antimicrobial, antioxidant and acaricidal activity of the extracts of leaves o...
Extractos Vegetales/farmacología,
Zanthoxylum,
Antiinfecciosos/farmacología,
Antioxidantes/farmacología,
Acaricidas/farmacología,
Salmonella enterica/efectos de los fármacos,
Ácaros/efectos de los fármacos,
Hojas de la Planta,
Extractos Vegetales/química,
Zanthoxylum/química,
Pruebas de Sensibilidad Microbiana
