Bio-aggressor

Articles

• Tackling the metagenomics of aphids microbial symbionts : are conifereeding aphids looking for new tenants
  3 May 2021

  Tackling the metagenomics of aphids microbial symbionts : are conifer -eeding aphids looking for new tenants ? In the last years, increasing evidence recognizes that bacterial endosymbionts are major players in the evolution of plant-eating insects. But the long-term consequences of these interactions and their role in the environmental transitions experienced by their hosts are seldom explored in a phylogenetic (...)

• Multifaceted sustainability of agro-ecological pest management: tackling ecological, evolution and sociological challenges with fruit-fly research.
  29 April 2022

  Past experiences with pest control has revealed sustainability challenges due to ecological, evolutionary and sociological processes. The evolution of resistances to chemical pest-control agents is one such example. Similarly, some methods of crop protection based on the use of natural enemies fail to spread among farmers due to cultural reasons. These highlight the need to include sustainability criteria from the onset of pest control research. Figure 1 illustrates our approach and the (...)

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  29 April 2022

  Exploratory mission to Tanzania to set up a public-private partnership on the rice yellow mottle virus and to analyse the climatic factors favouring its emergence

• Développement de bioréacteurs végétaux et de technologies amplicon/VIGS dans les monocotylédones (riz et maïs)
  29 April 2022

  In recent years, advances on biotechnology have lead to the emergence of plants as bioreactor for the production of molecules of industrial, pharmaceutical and agribusiness interests. A significant development in this field was the use of cDNA encoding viral RNA used as “amplifier” for the protein production. Viral tools have been used to develop an efficient tools for gene function studies: Virus Induced Gene Silencing (VIGS) technology. Whereas several viral biotechnological tools are (...)

• Characteristics of natural, semi-natural and controlled habitats (orchard) and cultural practices affecting the parasitism of Anastrepha fraterculus (fruit fly) in apple orchards in the Parana region. Basis for biological control.
  29 April 2022

  In alternative agricultural production approaches, the agricultural production system is defined as an area large enough to include forests, hedgerows, riparian forests, farmland and other non cultivated agricultural areas. These sytems comprise a diversity of habitats with a large insect diversity, be there neutral to crops, phytophagous or entomophagous, and the presence or not of host plants. Temperate fruit orchards in southern Brazil encurr a serious threat due to the South American (...)

• Understanding the emergence of infectious diseases: linking the evolution of the genome and the evolution of the virulence of a phytovirus in the adaptation phase to its host.
  29 April 2022

  Studies on the molecular mechanisms of virus adaptation could provide insights on the process underlying their emergence. However, such studies are scarse not only for viruses but alos for any other organisms. In this work, we propose to characterize adaptive mutations arising in viral populations, evolving either in constant or variable environments, and to evaluate their phenotypic expression.
  Since the viral environment is mainly governed by the host, we designed an experimental (...)

• ’Exploration of the genetic variability of peach phenolic and triterpenoid com-pounds as natural defense against brown rot’
  3 May 2021

  ’Brown rot caused by Monilinia spp. provokes dramatic losses of fruit. In Southern Brazil, the crop losses, after harvest, can be higher than 25%. In France, damages reach the same order of magnitude depending on the year.’

• ’Nutritional characterisation and impact of processing on the nutritional qualities of tropical vegetables: vitamins C and B9, carotenoids, antioxidants’
  3 May 2021

  ’There is lately in Nigeria a decrease in consumption of traditional leafy vegetables, accompagnying increased consumption of imported foods and lack of dietary diversity, leading to increased micronutrient deficiencies. The aim of the project was therefore to evaluate the micronutriment contents of traditional leafy vegetables, some of them growing wild, to identify the most promising source sof micronutrients and have convincing data to promote their (...)

• ’Exploration of the genetic variability of peach phenolic and triterpenoid com-pounds as natural defense against brown rot’
  3 May 2021

  ’Brown rot caused by Monilinia spp. provokes dramatic losses of fruit. In Southern Brazil, the crop losses, after harvest, can be higher than 25%. In France, damages reach the same order of magnitude depending on the year.’

• Bio-aggressors and invasive species: from individuals to populations and species
  3 May 2021

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