Search

Search Results

• Phytopatological properties of symbiotic Rhizoctonia solani strains associated to orchids

  65-71

  Gyula Oros

  Eszter R. Széki

  Zoltán Naár

  Donát Magyar

  Views:

  163

  The mycobiota of the Orchidarium of ELTE Botanical Garden (Budapest) has been studied applying aerobiological methods and isolating of tissue samples taken from 92 individuals of sixty orchid species. Among isolated basidiomycetaceous fungi 13 strains of Rhizoctonia solani were surviving in axenic culture. These symbiotic R. solani strains proved to be pathogenic on 24 cultivated plant species at varying degree. The symptoms of disease caused by R. solani strains isolated from orchids did not differ from that caused by reference strains. Three groups of strains could be separated regardless of their source or aggressivity. The host plants clustered into two groups, and their taxonomic position had no role in this respect. In general, we can assume that orchid associated Rhizoctonia strains are potential plant pathogens, and removed or withdrawn orchid stools should be treated as hazardous waste.

• Unraveling changes in the duck microbiome and inflammatory processes due to allithiamine-enriched feed

  163-171

  Zsombor Szőke

  Emese Szilágyi-Tolnai

  Péter Dávid

  Péter Fauszt

  Endre Szilágyi

  Anna Szilágyi-Rácz

  László Stündl

  Ferenc Gál

  Judit Gálné Remenyik

  Melinda Paholcsek

  Views:

  112

  The gastrointestinal tract of poultry harbors a diverse and intricate microbiome that plays a crucial role in nutrient digestion and absorption, immune system development, and enhances resistance against pathogens. Maintaining a healthy state and proper production is fundamentally determined by the symbiosis between the host and microbes. Due to genetic and technological improvements, intensive growth rate can be associated with many pathological conditions, such as increased susceptibility to infections. Intestinal inflammation in poultry industries detrimentally affects productivity by hindering nutrient absorption and the efficient allocation of nutrients for growth. The host releases different biomarkers in response to inflammation. Hence, there is an utmost interest of reliable, precise, sensitive and robust biomarkers to evaluate both the gastrointestinal health status and inflammation in poultry. The aim of this study was to determine how the developed feed prototype (allithiamine) affects the community diversity in raised duck, and the relationship between gut microbiome composition and inflammatory factor as calprotectin, using targeted 16S rRNA gene amplicon sequencing and Chicken Calprotectin ELISA Kit.

• The effect of wet compost extract on the root tubers of green pea

  51-54

  Bernadett Fehér

  Ibolya Demeter

  Tibor Aranyos

  Attila Tomócsik

  Mariann Makádi

  Views:

  177

  Nitrogen plays significant role in the life of plants, it could be the main limiting factor of plant growth. Sustainable plant nutrition pays attention to satisfy the plants’ nutrient demand without chemical fertilizers, e.g. by bounding the atmospheric nitrogen. The nitrogen fixing organizations play important role in supplying plants with nitrogenbecause the N2-fixingbacteria can fix high amounts of nitrogen.
  Many effects of the sewage sludge compost extracts is known in the literature. We studied the effect of sewage sludge compost water extract in laboratory conditions on the growth of Rhizobium spp. isolated from green pea, while in a small plot experiment thepea-Rhizobium symbiosis were studied on sandy soil in the Nyírség region. The extract was produced under aerobic conditions. The compost extract was applied before and/or after sowing. In the laboratory experiments we used the sterile version of extract, in different doses.
  In our work we present the effect of compost water extract on the number of green pea roots nodules, dry weight of the plant and reproduction of the Rhizobium bacteria.