Elevated nutrient supply can exert worse effects on Norway spruce than drought, viewed through chemical defence against needle rust.

ABSTRACT: Abiotic factors such as water and nutrient availability can exert a dominant influence on the susceptibility of plants to various pathogens. Effects of abiotic environmental factors on phenolic compound concentrations in the plant tissue may represent one of the major underlying mechanisms, as these compounds are known to play a substantial role in plant resistance to pests. In particular, this applies to conifer trees, in which a large range of phenolic compounds are produced constitutively and/or induced by pathogen attack. We subjected Norway spruce saplings to water limitation and elevated nutrient supply over 2 years and subsequently controlled infection with the needle rust Chrysomyxa rhododendri (DC.) de Bary and analysed both constitutive and inducible phenolic compound concentrati

SUBMITTER: Ganthaler A 

PROVIDER: S-EPMC10565715 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature