Abundance of White-fronted Parrots and diet of an urban parrot assemblage(Aves:Psittaciformes)in a green Neotropical city     

Cristel álvarez-Castillo  Ian MacGregor-Fors  Stefan L.Arriaga-Weiss  Claudio Mota-Vargas  Diego Santiago-Alarcon 《中国鸟类》2022,(1):36-42

Urban ecosystems are evolutionarily recent novel environments acting as biodiversity filters.Psittacidae birds are considered successful urban adapters mainly d...  相似文献   

Drought as a modulator of plant–virus–vector interactions: Effects on symptom expression,plant immunity and vector behaviour     

Diego F. Vasquez  Anngie Hernandez  Diana Torres  Felipe Borrero-Echeverry  Paola Zuluaga  Diego F. Rincon 《Plant pathology》2022,71(6):1282-1292

Plant–virus interactions are affected by environmental conditions that determine plant vulnerability to pathogens and the population dynamics of insect vectors. We hypothesize that drought enhances horizontal transmission by dampening the basal immunity of plants, which triggers symptom expression and vector manipulation. The potato yellow vein virus (PYVV) causes potato yellow vein disease (PYVD), a re-emerging epidemic of potato crops in South America, and is transmitted horizontally by the greenhouse whitefly (GWF), Trialeurodes vaporariorum (Hemiptera: Aleyrodidae), or vertically through infected seed tubers. We investigated the role of drought and temperature as modulators of PYVD symptom expression, plant immune response, and vector survival, development and host preference. We found that drought induced symptom expression, suppressed the salicylic acid pathway and increased PYVV replication. GWF survival was reduced on PYVV-infected hosts and development was slowest when they fed on plants with PYVD symptoms, which also triggered adults’ attraction to PYVV-infected plants. However, adults previously fed on infected plants showed the opposite effect, being more attracted to PYVV-free plants. We propose a theoretical model that explains the role of drought in modulating potato–PYVV–GWF interactions and provides new insights into plant–virus–vector coevolution.  相似文献   

The leaf beetle Labidostomis lusitanica (Coleoptera: Chrysomelidae) as an Iberian pistachio pest: projecting risky areas     

Sara Rodrigo Gmez  Diego Gil-Tapetado  Jaime García-Gila  Javier Blasco-Arstegui  Carlo Polidori 《Pest management science》2022,78(1):217-229

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Metabolite Profiling of Rosemary Cell Lines with Antiproliferative Potential against Human HT-29 Colon Cancer Cells     

Urquiza-López  Araceli  Álvarez-Rivera  Gerardo  Ballesteros-Vivas  Diego  Cifuentes  Alejandro  Del Villar-Martínez  Alma Angélica 《Plant foods for human nutrition (Dordrecht, Netherlands)》2021,76(3):319-325

Plant Foods for Human Nutrition - Rosemary (Rosmarinus officinalis) is a culinary and medicinal plant used in food and pharmaceutical industry. The wide range of biological activities is mainly...  相似文献   

Multifractal and joint multifractal analysis of soil micronutrients extracted by two methods along a transect in a coarse textured soil     

Ênio Farias de França e Silva  Aitor García-Tomillo  Diego Henrique Silva de Souza  Eva Vidal-Vázquez  Glécio Machado Siqueira  Daniel da Costa Dantas  Antonio Paz-González 《European Journal of Soil Science》2021,72(2):608-622

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Field response of Lathyrus cicera germplasm to crenate broomrape (Orobanche crenata)   总被引：1，自引：0，他引：1  

M. Fernndez-Aparicio  F. Flores  D. Rubiales 《Field Crops Research》2009,113(3):321-327

Crenate broomrape (Orobanche crenata Forks.) is a major constraint for grain and forage legume cultivation in Mediterranean agriculture, to which little resistance is available. We studied the response to O. crenata of a germplasm collection of chickling pea (Lathyrus cicera L.) in field trials over two seasons showing that resistance although scarce and masked by confounding factors, is available and can be used in breeding. The level of infection was highly influenced by environmental factors and plant growth cycle. Earlier accessions were less infected due to competition of the earlier settled pods with O. crenata tubercles. O. crenata infection strongly reduced host biomass and grain yield. Deviations from the polynomic regression gave an improved approximation of the true genetic resistance levels present in the germplasm.  相似文献   

Identification of resistance to Uromyces pisi (Pers.) Wint. in Pisum spp. germplasm     

Eleonora Barilli  Josefina C. Sillero  Mnica Fernndez-Aparicio  Diego Rubiales 《Field Crops Research》2009,114(2):198-203

A germplasm collection of 2759 pea accessions was screened for resistance against Uromyces pisi (Pers.) Wint. All accessions displayed a compatible interaction (high infection type) both in adult plants under field conditions and in seedlings under growth chamber conditions, but with varying levels of disease reduction. The identified resistance was based on reduction of disease severity with no associated host cell necrosis, which fits the definition of Partial Resistance. No complete resistance or incomplete resistance based on hypersensitivity was observed.  相似文献   

‘Microbigation’: delivery of biological control agents through drip irrigation systems     

Angela Boari  Diego Zuccari  Maurizio Vurro 《Irrigation Science》2008,26(2):101-107

The uniform and precise application of microbial particles close to the target organism and to the plant to be protected can increase the success of a biological control treatment. The use of systems or technologies which are usually available in agriculture could influence the acceptability of biocontrol agents by farmers, and enlarge the market. A pilot system was realized using dripper lines, drippers, filters and other tools commonly used in irrigation and precision agriculture in the greenhouse to evaluate their suitability for applying and distributing microbial biocontrol agents. Conidial suspensions of marketed or marketable agents were used, i.e. Fusarium oxysporum, F. solani, Trichoderma harzianum and Paecilomyces lilacinus. The experiments carried out demonstrated that conidial suspensions (10⁶ conidia ml⁻¹) can pass through the drippers without causing clogging, regardless of their size, and remained viable. The term ‘microbigation’ is here proposed for this kind of microbial application technique.  相似文献   

A sensitive dot immunobinding assay for serodiagnosis of African swine fever virus with application in field conditions.     

M J Pastor  M Arias  C Alcaraz  M De Diego  J M Escribano 《Journal of veterinary diagnostic investigation》1992,4(3):254-257

The present work describes a simple dot immunobinding assay (DIA) for African swine fever virus (ASFV) antibody detection that can be used under field conditions. The assay uses nitrocellulose strips dotted with a cytoplasmic soluble antigen (CS-P) of ASFV. The nitrocellulose strips are adhered to a plastic handle. The test serum samples react with the CS-P, and antibodies are detected using a protein A-peroxidase conjugate. Both incubations are carried out at 20 C. The efficacy of the DIA as a screening test for ASFV was compared to an enzyme-linked immunosorbent assay (ELISA) and an immunoblotting (IB) test using 343 sera collected from natural African swine fever epizootics and from inapparent ASFV carriers. The DIA had comparable sensitivity to both reference techniques, and all samples positive in the ELISA and IB test were also positive in the DIA. False-positive reactions were not detected when whole blood or poorly preserved serum samples were tested by DIA. Some poorly preserved sera that were positive initially by the ELISA were no longer ELISA positive in a later run, although they were positive in IB and DIA. These positive DIA and IB test results could be caused by the differences in antibody epitope binding.  相似文献   

Current status of bovine haemoparasitic diseases in Martinique (French West Indies)]     

M Alonso  E Camus  J Rodriguez Diego  L Bertaudière  J C Tatareau  J M Liabeuf 《Revue d'élevage et de médecine vétérinaire des pays tropicaux》1992,45(1):9-14

A serological survey using indirect immunofluorescence (IFAT) for bovine babesiosis (Babesia bovis and B. bigemina) and card test for anaplasmosis, indicates that these haemoparasites are widespread in Martinique. The high prevalences (62% for B. bovis, 52% for B. bigemina and 43% for Anaplasma marginale) lead to the hypothesis of an unstable epizootic situation for these three haemoparasitic diseases. However, the number of smears examined was too low to evaluate their clinical incidence. Both the American and Cuban card tests gave similar results in the detection of antibodies to A. marginale. Theileria mutans is described for the first time in Martinique. Trypanosomosis (Trypanosoma vivax) has disappeared from Martinique, on clinical and serological evidence.  相似文献