Search results for "InSe"

A Hive for Migratory Beekeeping

1936

Lures for red palm weevil trapping systems: aggregation pheromone and synthetic kairomone

2015

[EN] BACKGROUNDThe optimisation of the lure is essential for the implementation of trapping systems to control insect pests. In this work, the response of the red palm weevil (RPW), Rhynchophorus ferrugineus Olivier, to increasing emission rates of its aggregation pheromone (ferrugineol) and the efficacy of a convenient synthetic kairomone based on fermentation odours (ethyl acetate and ethanol) have been evaluated in different years and locations along the Mediterranean basin. RESULTSIn general, although capture data and emission had noticeable variability among locations, significantly fewer RPW were captured in pyramidal Picusan (R) traps with the lowest ferrugineol emission rates tested…

Evidence for a conserved queen-worker genetic toolkit across slave-making ants and their ant hosts

2021

AbstractThe ecological success of social Hymenoptera (ants, bees, wasps) depends on the division of labour between the queen and workers. Each caste is highly specialised in its respective function in morphology, behaviour and life-history traits, such as lifespan and fecundity. Despite strong defences against alien intruders, insect societies are vulnerable to social parasites, such as workerless inquilines or slave-making (dulotic) ants. Here, we investigate whether gene expression varies in parallel ways between lifestyles (slave-making versus host ants) across five independent origins of ant slavery in the “Formicoxenus-group” of the ant tribe Crematogastrini. As caste differences are o…

Il paradigma bio-regionale per il progetto di ri-territorializzazione (re-embedding) dell’insediamento umano

2019

Il testo propone una rilettura ed interpretazione del paradigma bio-regionale come riferimento per pratiche interpretative, di governance e progetto di territorio finalizzate alla “rilocalizzazione” dell’insediamento umano nel suo milieu socio-culturale ed ambientale di prossimità. Il riferimento primario è all’ampio e polifonico movimento culturale bio-regionale sviluppatosi in particolare negli Stati Uniti tra la fine degli anni sessanta e l’inizio degli anni settanta del XX secolo. È in questo quadro che si costituisce progressivamente il tema del “bioregionalismo urbano” o della “bioregione urbana” come nodo concettuale intorno al quale ri-articolare il recupero di una relazione co-evol…

Enzyme and lateral flow monoclonal antibody-based immunoassays to simultaneously determine spirotetramat and spirotetramat-enol in foodstuffs.

2021

Spirotetramat is employed worldwide to fight insect pests due to its high efficiency. This chemical is quickly metabolized by plants into spirotetramat-enol, so current regulations establish that both compounds must be determined in foodstuffs for monitoring purposes. Nowadays, immunochemical methods constitute rapid and cost-effective strategies for chemical contaminant analysis at trace levels. However, high-affinity binders and suitable bioconjugates are required. In this study, haptens with opposite functionalisation sites were synthesized in order to generate high-affinity monoclonal antibodies. A direct competitive enzyme-linked immunosorbent assay with an IC50 value for the sum of sp…

Properties of 6-phosphofructokinase from insect flight muscle

1987

Essential Oils as Natural Biocides in Conservation of Cultural Heritage

2020

Essential oils (EOs) have been known for a long time, and they are used in several fields such as medicine and aromatherapy, as well as in the food and pharmaceutical industries. In the last decade, EOs have also been applied to contrast the biodeterioration of cultural heritage, representing a powerful resource in green conservation strategies. In this study, an integrated approach based on microscopic observation, in vitro culture, and molecular investigation was preliminarily employed to identify biological systems colonizing wooden artworks. In order to contrast the biodeterioration processes induced by fungal colonization (Aspergillus flavus) or insect infestation (Anobium punctatum), …

Biochemical and molecular study of the Bacillus thuringiensis vegetative insecticidal proteins (Vip3A) mode of action in Spodoptera species

2015

Las proteínas insecticidas vegetativas (Vip) constituyen una nueva familia de toxinas producidas durante la fase de crecimiento vegetativo de diferentes cepas de Bacillus y principalmente por Bacillus thuringiensis (Bt). Esta familia de proteínas está representada por 4 miembros: Vip1, Vip2, Vip3 y la recientemente descrita Vip4. Las toxinas binarias Vip1 y Vip2 son activas contra coleópteros y homópteros; las proteínas Vip3 son activas contra lepidópteros, sin embargo, los insectos diana para la proteína Vip4 no se conocen todavía. La determinación del modo de acción de Vip1 y Vip2 fue fácil ya que mostraron una homología de secuencia significativa con las toxinas clostridiales C2 y C3, re…

Solving gap metabolites and blocked reactions in genome-scale models: application to the metabolic network of Blattabacterium cuenoti

2013

Abstract Background Metabolic reconstruction is the computational-based process that aims to elucidate the network of metabolites interconnected through reactions catalyzed by activities assigned to one or more genes. Reconstructed models may contain inconsistencies that appear as gap metabolites and blocked reactions. Although automatic methods for solving this problem have been previously developed, there are many situations where manual curation is still needed. Results We introduce a general definition of gap metabolite that allows its detection in a straightforward manner. Moreover, a method for the detection of Unconnected Modules, defined as isolated sets of blocked reactions connect…

Postembryonic development of the troglobitic planthopper species Valenciolenda fadaforesta Hoch & Sendra, 2021 (Hemiptera, Fulgoromorpha, Ki…

2022

All nymphal instars of the recently discovered troglobitic planthopper species Valenciolenda fadaforesta Hoch & Sendra, 2021 are described. This represents the first documentation of the complete postembryonic development of any species in the family Kinnaridae. Characters of the external morphology are described and illustrated, and a key to the instars are provided to facilitate discrimination among the different nymphal stages. While V. fadaforesta nymphs share certain synapomorphies with other Fulgoromorpha (except the Tettigometridae), e.g., the cog-wheel structures of the metatrochanters, other characters may be correlated with the subterranean way of life of the species, and thus…