Legacies of consecutive summer droughts on soil-borne plant parasitic protists (Oomycota: Stramenopila and Phytomyxea: Rhizaria) and protistan consumers (Cercozoa: Rhizaria) along an experimental plant diversity gradient. [PDF]
Summary Increasing frequencies of severe summer droughts and plant diversity loss disrupt ecosystem functioning and stability of European grasslands. Understanding how these factors interact with pathogens is crucial. We investigated the effects of plant diversity and repeated summer drought on soil‐borne parasites within a grassland biodiversity ...
Solbach MD +8 more
europepmc +2 more sources
Commodity risk assessment of <i>Vitis</i> spp. plants from Moldova. [PDF]
Abstract The European Commission requests EFSA to provide scientific opinions in the field of plant health in accordance with Article 29 of Regulation (EC) No 178/2002. Annex VI of Commission Implementing Regulation (EU) 2019/2072 lists plants, plant products and other objects whose introduction into the Union from certain third countries is prohibited.
EFSA Panel on Plant Health (PLH) +37 more
europepmc +2 more sources
A survey in natural forest ecosystems of Vietnam reveals high diversity of both new and described Phytophthora taxa including P. ramorum [PDF]
In 2016 and 2017, surveys of Phytophthora diversity were performed in 25 natural and semi-natural forest stands and 16 rivers in temperate and subtropical montane and tropical lowland regions of Vietnam.
Bakonyi, József +14 more
core +2 more sources
Carbohydrate-active enzymes in pythium and their role in plant cell wall and storage polysaccharide degradation. [PDF]
Carbohydrate-active enzymes (CAZymes) are involved in the metabolism of glycoconjugates, oligosaccharides, and polysaccharides and, in the case of plant pathogens, in the degradation of the host cell wall and storage compounds.
Marcelo M Zerillo +5 more
doaj +1 more source
The roles that specific cultivars with different levels and types of resistance may play on the diversity and abundance of Phytophthora, Phytopythium, and Pythium spp. communities were compared.
Krystel A. Navarro +4 more
doaj +1 more source
Commercial biocontrol agents reveal contrasting comportments against two mycotoxigenic fungi in cereals: Fusarium Graminearum and Fusarium Verticillioides [PDF]
The aim of this study was to investigate the impact of commercialized biological control agents (BCAs) against two major mycotoxigenic fungi in cereals, Fusarium graminearum and Fusarium verticillioides, which are trichothecene and fumonisin producers ...
Durand, Noel +5 more
core +1 more source
Ultrastructural and Cytochemical Investigation of Asymptomatic Infection by Pythium spp. [PDF]
The influence exerted by Pythium group F (a minor pathogen ubiquitous in soilless cultures) and P. uncinulatum (a nonpathogenic species) colonization on tomato roots was investigated. In both interactions, infected roots did not exhibit obvious symptoms; however, major physiological changes occurred within the host tissues colonized by Pythium group F
P, Rey, N, Benhamou, Y, Tirilly
openaire +2 more sources
Root rot in common bean is a disease that causes serious damage to grain production, particularly in the upland areas of Eastern and Central Africa where significant losses occur in susceptible bean varieties. Pythium spp. and Fusarium spp. are among the
Lucy Milena Diaz +9 more
doaj +1 more source
Ethylene Insensitivity Impairs Resistance to Soilborne Pathogens in Tobacco and Arabidopsis thaliana
Transgenic ethylene-insensitive tobacco (Tetr) plants spontaneously develop symptoms of wilting and stem necrosis when grown in nonautoclaved soil. Fusarium oxysporum, F. solani, Thielaviopsis basicola, Rhizopus stolonifer, and two Pythium spp.
Bart P. J. Geraats +2 more
doaj +1 more source
Interactions between the oomycete Pythium arrhenomanes and the rice root-knot nematode Meloidogyne graminicola in aerobic Asian rice varieties [PDF]
Background: Aerobic rice fields are frequently infested by pathogenic oomycetes (Pythium spp.) and the rice root-knot nematode Meloidogyne graminicola.
Banaay, CGB +7 more
core +2 more sources

