Essays about: "parasitism"

Showing result 1 - 5 of 16 essays containing the word parasitism.

  1. 1. Biologisk bekämpning av potatiscystnematoder : några biologiska bekämpningsorganismer och deras potential för svenskt bruk

    University essay from SLU/Dept. of Ecology

    Author : Sabina Juhlin Munoz; [2023]
    Keywords : tillsättande biologisk bekämpning; Globodera; potatiscystnematoder; svampar; bakterier; parasitism; antibios; Trichoderma harzianum; Bacillus thuringiensis;

    Abstract : Potatiscystnematoderna (PCN) Globodera pallida (vit potatiscystnematod) och G. rostochiensis (gul potatiscystnematod) är sedentära endoparasiter på potatis som kan orsaka stora skördeförluster i potatisodlingar. Båda arterna av PCN är även klassade som karantänskadegörare i Sverige. READ MORE

  3. 2. Top - down control: parasitism and predation on Gonyostomum semen in Swedish brown water lakes

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Ingrid Bergman; [2022]
    Keywords : limnology; phytoplankton; top-down control;

    Abstract : Gonyostomum semen is a raphidophyte microalgae that can be found in brown water lakes all over Sweden. The species forms substantial summer blooms that can completely dominate the phytoplankton community, largely due to its limited grazing pressure. To test whether parasites control the abundance of G. READ MORE

  4. 3. Design, expression and purification of virus-like particles derived from metagenomic studies : Virus-like Particles (VLP) of novel Partitiviridae species, Hubei.PLV 11, and novel Soutern pygmy squid flavilike virus were designed, expressed using the bac-to-bac expression system and then pruified using various methods

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Diyar Ayranci; [2021]
    Keywords : Virus; virus-like particles; VLP. Western Blot; SDS-PAGE; Chromatography; partitivrus; partitiviridae; flaviviridae; flavivirus; Hubei partitilike virus; Southern Pygmy Squid flavilike virus; protein purification; protein characterization; PCR; Cloning; metagenomic; strucutral biology; cryo-em; bac-to-bac expression system; vaccines; arbovirus; arthropod-borne virus;

    Abstract : Viruses are entities which are made of a few genes and are reliant on obligate parasitism to propagate. Due to the obligate connection to their hosts, virus evolution is constrained to the type of host. Viruses however do transmit to evolutionary distinct hosts; in these cases, the phylogenetic relationship of the hosts usually are close. READ MORE

  5. 4. Host plant selection in closely related butterfly species due to reproductive interference: Modelling a tritrophic system

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Alexandros Bantounas; [2021]
    Keywords : reproductive interference; habitat selection; modelling; phytophagous insects;

    Abstract : Host plant selection is an important process during the life cycle of lepidopterans, providing ovipositing sites for adults and food resources for the larvae. The processes behind host plant selection have been extensively studied, especially in closely related species in the context of niche separation. READ MORE

  6. 5. The role of pectin medifications during host invasion and infection by the parasitic plant Phtheirospermum japonicum

    University essay from SLU/Dept. Of Plant Biology

    Author : Martina Leso; [2020]
    Keywords : Hausrorium; Phtheirospermum japonicum; Pectin modification; PME; PMEI; EMS-screen;

    Abstract : Parasitic plants are organisms that feed on other plants, often distantly related to them evolutionarily. This feeding strategy causes them to be a major threat to agriculture, negatively affecting the yields of many staple crops like sorghum and rice. READ MORE