A5066660899- Insect-Plant Interactions and Control
- Hymenoptera taxonomy and phylogeny
- Forest Insect Ecology and Management
- Allelopathy and phytotoxic interactions
- Plant Parasitism and Resistance
- Weed Control and Herbicide Applications
- Plant and animal studies
- Plant biochemistry and biosynthesis
- Horticultural and Viticultural Research
- Chemical synthesis and alkaloids
- Agroforestry and silvopastoral systems
- Ecology and Vegetation Dynamics Studies
- Plant Pathogens and Fungal Diseases
- Agricultural and Food Production Studies
- Plant Disease Management Techniques
- Phytochemical compounds biological activities
- Ruminant Nutrition and Digestive Physiology
- Plant Disease Resistance and Genetics
- Plant Virus Research Studies
- Ethnobotanical and Medicinal Plants Studies
- Plant Diversity and Evolution
- Plant tissue culture and regeneration
- Forest Ecology and Biodiversity Studies
- Cocoa and Sweet Potato Agronomy
- Environmental and Cultural Studies in Latin America and Beyond
University of Concepción
2015-2024
Instituto de Investigaciones Avícolas
2003
University of Granma
1999
The invasion process of Acacia dealbata is partially mediated by releasing allelochemicals that affect native plants and soil microbes. However, non-volatile chemical compounds responsible for the allelopathic effect remain unknown, even though potential this species has been studied under Europe conditions. We examined aqueous extracts obtained from different plant materials A. dealbata: litter leaf, flowers, pods seeds fresh leaves also extract's phytotoxicity evolution on germination...
Plant species that growth close to or under the canopy of Acacia dealbata Link (Fabaceae, subfamily: Mimosoideae) within its non-native range, survive with difficulty not at all, especially if they are native.This phenomenon has been attributed allelopathy; one strategies used by A. trigger an invasion process.Native Quillaja saponaria Molina (tree) and Helenium aromaticum (Hook.)H.L. Bailey (herb), share dealbata's range in South-central Chile.This study was performed on Mediterranean...
Abstract Peumus boldus, a tree native to Chile, is extensively used for medicinal purposes due its richness in alkaloids and antioxidant polyphenols. A species of galling insect, Dasineura sp. induces structural chemical changes on P. boldus stems while galls are established developed. Taking into account the properties polyphenols, it would be expected that accumulation sites, profile, activity stem related different reactive oxygen (ROS) production levels during gall development. sites...
Some chewing larvae are capable of inducing galls in the host vascular cylinder, e.g. Dasineura sp. (Cecidomyiidae) on Peumus boldus stems. Due to medicinal and economic importance P. boldus, anatomical functional implications establishment stems were investigated. We asked if induces abnormalities at cellular organizational level system that increase during gall development favour hydric status gall. Anatomical alterations induced determined. Cytohistometric analyses mature compared...
Abstract Leaves of large‐leaved lime, Tilia platyphyllos Scop. (Malvaceae), harbor colonies Eriophyes tiliae (Pagenstecher) (Acari: Eriophyidae), capable modifying the leaf structure (inducer nail‐galls) and physiology. The aerial organs T. have traditionally been consumed for their high antioxidant capacity, related to rich polyphenol profile. Here, we investigated profiles activity non‐galled leaves galls determine changes induced by mite in a Chilean environment with ultraviolet (UV)...
Abstract The success of galling insects could be determined by synchronisation with host plant phenology and climate conditions, ensuring suitable oviposition sites for gall induction food resources their survival. anatomical, histochemical phenological strategies between Calophya rubra (Blanchard) (Hemiptera: Psylloidea) its host, the evergreen Schinus polygama (Cav.) (Cabrera) (Anacardiaceae), in Mediterranean southern Chile was evaluated compared to that congeneric C . cf. duvauae (Scott)...
The distribution of Acacia dealbata Link (Fabaceae) in its non-native range is associated with disturbed areas. However, the possibility that it can penetrate native forest during invasion process cannot be ruled out. This statement supported by fact this species has been experimentally established successfully under canopy forest. Nonetheless, unknown whether A. express shade tolerance traits to help increase invasive potential. We investigated two forests and one for three consecutive...
Environment, plant, and gall-inducing insect genotypes are key factors in determining the morphogenesis of galls. However, exact roles these have not been clarified. We used anatomical histochemical methods to evaluate final structure galls induced by Calophya mammifex on leaves Schinus polygama (Cav.) Cabrera under Mediterranean climate conditions southern Chile. Also, we compared mature with those congeneric rubra same host plant. develops a univoltine life cycle diapause period...
Autotoxicity is a particular form of allelopathy and suspected to be responsible for regulating intraspecific competition under the Acacia dealbata Link (Fabaceae) canopy. Was established bioassay with controlled conditions following natural patterns plant material accumulation A. canopy determine effects chemical compounds released by leaves, bark, flowers pods invasive species on germination early growth conspecific seedlings. Morphological changes caused parts in roots seedlings grown...
Teline monspessulana is highly invasive in several countries around the world. This species pressurizes and displaces native endemic tree south-central Chile such as Nothofagus obliqua, of greatest timber interest. We determined effects induced by allelochemical stress T. on N. obliqua germination initial growth. Germination was evaluated under vitro conditions natural substrate obtained from sites inhabited nearby areas invaded monspessulana. Controls irrigated with tap water treatments...
Oilseed rape (Brassica napus L.) plants with typical club root symptoms were detected on two farms in the La Araucanía region (37°35' to 39°37' S), southern Chile. In 2010, affected found large areas throughout three fields a single farm and disease incidence ranged from 30 100%. 2013, one field different farm. Disease was 30%. both cases, showed swellings or distortions, but no aerial evident. Cross-sections symptomatic roots observed under light fluorescent microscope compared healthy...