Results 51 to 60 of about 210,522 (178)

Right to Food in Sub‐Saharan Africa: Challenges, Policies, and Sustainable Strategies

Sustainable Development, EarlyView.
ABSTRACT This article examines the multifaceted issue of food security in Sub‐Saharan Africa and the critical importance of upholding rights to food in the region. It explores the challenges posed by food insecurity, analyzes existing policies and interventions, and proposes sustainable strategies to enhance food security.
Helen Onyeaka, Adenike A. Akinsemolu, Phemelo Tamasiga, Ogueri Nwaiwu, Elijah Kolawole Oladipo, Kehinde Abolade Aderibigbe, Taghi Miri   +6 more
wiley   +1 more source

Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source

Exploiting Native Biodiversity for Invasive Species Management: The Case of Exorista larvarum as a Natural Enemy of the Invasive Box Tree Moth Cydalima perspectalis

Entomologia Experimentalis et Applicata, EarlyView.
The investigations evaluated the performance of the native parasitoid Exorista larvarum (L.) on last instar Cydalima perspectalis (Walker) larvae, using the factitious host Galleria mellonella (L.) as a control. Laboratory bioassays were conducted using no‐choice and choice (1:1 and 5:5) experimental designs.
Serena Gallizia, Santolo Francati, Maria Luisa Dindo, Chiara Ferracini   +3 more
wiley   +1 more source

Insights into the draft genome sequence of bioactives-producing Bacillus thuringiensis DNG9 isolated from Algerian soil-oil slough

Standards in Genomic Sciences, 2018
Bacillus thuringiensis is widely used as a bioinsecticide due to its ability to form parasporal crystals containing proteinaceous toxins. It is a member of the Bacillus cereus sensu lato, a group with low genetic diversity but produces several promising ...
Mohamed Seghir Daas, Albert Remus R. Rosana, Jeella Z. Acedo, Malika Douzane, Farida Nateche, Salima Kebbouche-Gana, John C. Vederas   +6 more
doaj   +1 more source

HISTOCHEMICAL EFFECTS OF SOME BIOLOGICAL AGENTS ON CULEX PIPIENS LARVAE [PDF]

Journal of the Egyptian Society of Parasitology, 2016
The histochemical effects of the lethal concentration that kills 50% of larvae (LC50) of three biological agents, abamectin, Bacillus thuringiensis and spinosad on the carbohydrates (polysaccharides), proteins, nucleic acids and lipids content of the ...
ABADA ASSAR, HOWAIDA ISMAIL, MONA EL SOBKY   +2 more
doaj   +1 more source

Selective feeding and niche differentiation in adult boreal Odonata revealed by DNA metabarcoding

Ecological Entomology, EarlyView.
COI metabarcoding of faecal pellets from three sympatric Odonata species in boreal Swedish wetlands revealed Diptera‐dominated diets, with mosquitoes only a minor component despite high availability. The larger hawker Libellula quadrimaculata showed greater dietary variance than the smaller damselflies, indicating size‐ and foraging strategy‐dependent ...
Hana N. Merchant, Anssi Laurila, Eero J. Vesterinen, Jan O. Lundström, Frank Johansson   +4 more
wiley   +1 more source

Indian Bt cotton varieties do not affect the performance of cotton aphids. [PDF]

, 2009
Cotton varieties expressing Cry proteins derived from the soil bacterium Bacillus thuringiensis (Bt) are grown worldwide for the management of pest Lepidoptera.
Lawo, N. C., Wäckers, Felix L., Romeis, Jörg   +2 more
core   +3 more sources

From biology to biotechnology: Host‐regulation factors from parasitoid wasps are a source of bioactive molecules with translational potential

Insect Molecular Biology, EarlyView.
Parasitoid wasps deploy maternal and embryonic factors to reprogramme host physiology. Venom, calyx fluid, polydnaviruses, teratocytes and larval secretions act in a coordinated, compartmentalised manner. Host‐regulation factors are promising sources of insecticidal, antimicrobial and bioinspired translational molecules.
Ciro Pedro G. Pinto, Andrew A. Walker, Glenn F. King   +2 more
wiley   +1 more source

Effects of Asaia spp. on the development, size and associated microbiomes of two mosquito species of medical importance

Medical and Veterinary Entomology, EarlyView.
Addition of Asaia species to the rearing water of mosquito larvae can affect the structure of the larval microbiome, although these bacteria do not persist to the pupal stage. Asaia inoculation can increase the adult size of males of two mosquito species. The impact of Asaia inoculation on development rate and female size depended on bacterial and host
Alessandro Roman, Paula Luikens, Constantianus J. M. Koenraadt, Ben Raymond   +3 more
wiley   +1 more source

Screening signal peptides from Bacillus thuringiensis secretome for heterologous protein secretion

Applied Microbiology and Biotechnology
Efficient secretion of heterologous proteins is crucial for applications in industrial and biomedical fields. Selecting appropriate signal peptides and bacterial strains is critical for successful protein expression and export.
Jianbo Yang, Yan Xia, Li Zhu, Zhiwen Wang, Fuping Song, Shuyuan Guo   +5 more
doaj   +1 more source