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Directory of Open Access Journals Sweden. Presencia de Blastocystis Hominis como agente causal de enfermedades gatrointestinales en la comuna 7 Gaira del Distrito de Santa Marta. Full Text Available La Blastocystis hominis es un protozoo que causa cuadros diarreicos.
Los resultados muestran una alta presencia de Blastocystis hominken pacientes con enfermedad diarreica residentes en Gaira. Full Text Available Sansevieria spp. Muestras foliares de S. Cinco de las variedades de S. CsN fue re-aislado de hojas inoculadas postulados de Koch. Full Text Available The Microcyclus ulei Ascomycetes fungus is the causal agent of south-American leaf blight SALB, this being one of the most important diseases affecting the natural rubber tree Hevea brasiliensis in Latina-America and has been responsible for numerous economic losses.
This fungus has presented high physiological variability, suggesting its great adaptability. HCN tolerance has been described as being one of the mechanisms associated with its virulence. Resistant Hevea clones have been obtained by genetic improvement; however, the mechanisms associated with this are still not well known. Greater knowledge of this pathogen will lead to developing new control strategies and better understanding of the mechanisms associated with host resistance. Dentro del mismo, Diaporthe phaseolorum var.
Diaporthe phaseolorum var. The antibibiotic resistance by nosocomial infections NI causal agents constitutes a seriously global problematic that involves the Mexican Institute of Social Security's Regional General Hospital 1 in Chihuahua, Mexico; although with special features that required to be specified and evaluated, in order to concrete an effective therapy.
Observational, descriptive and prospective study; by means of active vigilance all along in order to detect the nosocomial infections, for epidemiologic study, culture and antibiogram to identify its causal agents and antibiotics resistance and sensitivity. We carried out culture and antibiogram about of them When we contrasted those results with the recommendations in the clinical practice guides, it aroused several contradictions; so they must be taken with reserves and has to be tested in each hospital, by means of cultures and antibiograms in practically every case of nosocomial infection.
En estados Respuesta al glifosato de un aislamiento de Rhizoctonia solani agente causal del anublo de la vaina del arroz, y de cuatro aislamientos de Trichoderma, bajo condiciones in vitro In vitro response of one isolate of Rhizoctonia solani, the pathogen of the rice sheath blight and four isolates of Trichoderma to glyphosate. Por tanto, se propuso el presente trabajo con el fin de dilucidar los posibles efectos del glifosato sobre R. Por su parte, la respuesta de Trichoderma al glifosato fue similar a la de R.
Full Text Available Was evaluated in the laboratory the effect of seven plant extracts of Neem leaves and fruit Azadirachta indica leaves of lemon grass Swinglea glutinosa, leaves of papaya Carica papaya, Pringamosa leaves Urtica dioica, eucalyptus leaves Eucalyptus camaldulensis Dehn fruits of garlic Allium sativum L.
The pathogen was isolated on PDA medium from tomato fruit tree, the extracts were obtained taking into account the process by Marin, et. Al , which consists of chopping and blending plant material deposited in plastic bucket, add water ratio 2. The produto was filtered using sterile gauze and package them for further evaluation. Moniliophthora roreri, causal agent of cacao frosty pod rot.
Taxonomy: Moniliophthora roreri Cif. Biology: Moniliophthora roreri attacks Theobroma and Herrania species causing frosty pod rot. Theobroma cacao cacao is the host of major economic concern.
Spore masses, of apparent asexual origin, are produced on the pod surface after initiation of the necrotrophic phase. Spores are spread by wind, rain and human activity. Symptoms of the biotrophic phase can include necrotic flecks and, in some cases, pod malformation, but pods otherwise remain asymptomatic.
Relationship to Moniliophthora perniciosa: Moniliophthora roreri and Moniliophthora perniciosa, causal agent of witches' broom disease of cacao, are closely related. Their genomes are similar, including many of the genes they carry which are considered to be important in the disease process. Moniliophthora perniciosa, also a hemibiotroph, has a typical basidiomycete lifestyle and morphology, forming clamp connections and producing mushrooms.
Basidiospores infect meristematic tissues including flower cushions, stem tips and pods. Moniliophthora roreri does not form clamp connections or mushrooms and infects pods only. Both pathogens are limited to the Western Hemisphere and are a threat to cacao production around the world. Moniliophthora roreri remains in the invasive phase in the Western Hemisphere, not having reached Brazil, some islands within the Caribbean and a few specific regions within otherwise invaded countries. The disease can be managed by a combination of cultural for example, maintenance of tree height and removal of infected pods and chemical methods.
These methods benefit from regional application, but can be cost prohibitive. Breeding for. In our research we have shown how the idea The notion of Granger- causality is captured in the following definition.
Definition 2. Distilled water was utilized during 16 weeks. It was demonstrated that there is a direct relationship between the use of BASUCO and the clinical and histological alterations of the gingiva, of which the gingival abscess is the most frequent pathology Taking into account the increasing consumption of drugs in our society and the results obtained, it is important that the odontologist considers the use of drugs as a causal agent of gingival alterations.
Written by one of the pre-eminent researchers in the field, this book provides a comprehensive exposition of modern analysis of causation. It shows how causality has grown from a nebulous concept into a mathematical theory with significant applications in the fields of statistics, artificial intelligence, philosophy, cognitive science, and the health and social sciences.
Pearl presents a unified account of the probabilistic, manipulative, counterfactual and structural approaches to causation, and devises simple mathematical tools for analyzing the relationships between causal connections, statistical associations, actions and observations.
The book will open the way for including causal analysis in the standard curriculum of statistics, artifical intelligence, business, epidemiology, social science and economics. Students in these areas will find natural models, simple identification procedures, and precise mathematical definitions of causal concepts that traditional texts have tended to evade or make unduly complicated. This book will be of interest to professionals and students in a wide variety of fields.
Anyone who wishes to elucidate meaningful relationships from data, predict effects of actions and policies, assess explanations of reported events, or form theories of causal understanding and causal speech will find this book stimulating and invaluable. In vitro evidence for sexual reproduction in Venturia effusa, causal agent of pecan scab. Venturia effusa is the causal agent of pecan scab, the most prevalent disease of pecan in the southeastern US.
Venturia effusa is currently only known to reproduce asexually, yet the genetic diversity among populations of pecan scab suggest it is a sexually reproducing pathogen. Analysis of the mati Here, we present a draft genome sequence of isolate of Colletotrichum fructicola , a causal agent of mango anthracnose. Antagonistic activity Trichoderma harzianum Rifai on the causal agent of rice blast Pyricularia grisea Sacc.
Full Text Available With the objective to evaluate the antagonistic activity of T. It was evaluated the biocontrol mechanisms such as competition through mounted the percent inhibition of radial growth of hyphae of P. In addition, was evaluated micoparasitism to inclination the observation of events Microscopy winding, penetration, vacuolization, lysis, and antibiosis by observing 24 hours a confrontation between the hyphae of the phytopathogenic fungus and biological control agent.
It was evidenced an antibiotic effect of metabolites produced by T. These results demonstrated the ability of T. Anthracnose disease of avocado contributes to a huge loss of avocado fruits due to postharvest rot in Kenya.
The causal agent of this disease has not been clear but presumed to be Colletotrichum gloeosporioides as reported in other regions where avocado is grown. The fungus mainly infects fruits causing symptoms such as small blackish spots, "pepper spots," and black spots with raised margin which coalesce as infection progresses. Due to economic losses associated with the disease and emerging information of other species of fungi as causal agents of the disease, this study was aimed at identifying causal agent s of the disease.
A total of 80 fungal isolates were collected from diseased avocado fruits in Murang'a County, the main avocado growing region in Kenya. Forty-six isolates were morphologically identified as Colletotrichum spp. Their spores were straight with rounded end and nonseptate. Thirty-four isolates were identified as Pestalotiopsis spp. Further molecular studies using ITS indicated Colletotrichum gloeosporioides , Colletotrichum boninense , and Pestalotiopsis microspora as the causal agents of anthracnose disease in avocado.
However, with this being the first report, there is a need to conduct further studies to establish whether there is coinfection or any interaction thereof. Full Text Available Anthracnose disease of avocado contributes to a huge loss of avocado fruits due to postharvest rot in Kenya.
Further molecular studies using ITS indicated Colletotrichum gloeosporioides, Colletotrichum boninense, and Pestalotiopsis microspora as the causal agents of anthracnose disease in avocado.
Agente adaptable, aprendizaje y estructura del ambiente: un enfoque alternativo. Identification and Control of Cladobotryum spp. Cladobotryum spp. The disease symptoms are: cottony fluffy white or yellowish to pink colonies on mushroom casing, rapid colonization of casing surface, covering of host basidiomata by mycelia, and their decay. Prochloraz-Mn has been officially recommended for mushroom cultivation in EU countries. Susceptibility of Haemophilus equigenitalis, the causal agent of contagious equine metritis, to 31 antimicrobial agents.
The minimal inhibitory concentrations of 31 antimicrobial agents were determined for 99 isolates of Haemophilus equigenitalis by the agar dilution method. All the isolates showed good susceptibility to 26 antimicrobial agents tests, minimal inhibitory concentrations of which were less than 3. Of these agents , 4 macrolides erythromycin, oleandomycin, kitasamycin, tylosin , 3 tetracyclines tetracycline, chlortetracycline, oxytetracycline , 1 peptide colistin , 1 penicillin ampicillin and 1 pleuromutilin tiamulin were the most active agents , showing a minimal inhibitory concentration of less than 0.
Five essential oils, namely peppermint Mentha piperita L. The most two effective oils peppermint and thyme were used in vitro and in vivo after testing their effects on potato tubers buds germination. Peppermint inhibited buds germination but thyme have no effects on buds germination.
In vivo, the control of brown rot using thyme oil in glass house experiment reduced the percentage of brown rot infection to Survival of Fusarium graminearum, the causal agent of Fusarium head blight. A review. International audience; Wheat is one of the most cultivated crops worldwide. Wheat yield can be highly decreased by several factors.
In particular Fusarium graminearum Schwabe is a worldwide fungal pest impacting wheat production. Losses caused by Fusarium head blight in Northern a
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