Reduced susceptibility of tomato stem to the necrotrophic fungus Botrytis cinerea is associated with a specific adjustment of fructose content in the host sugar pool.

ABSTRACT:

Background and aims

Plant soluble sugars, as main components of primary metabolism, are thought to be implicated in defence against pathogenic fungi. However, the function of sucrose and hexoses remains unclear. This study aimed to identify robust patterns in the dynamics of soluble sugars in sink tissues of tomato plants during the course of infection by the necrotrophic fungus Botrytis cinerea . Distinct roles for glucose and fructose in defence against B. cinerea were hypothesized.

Methods

We examined sugar contents and defence hormonal markers in tomato stem tissues before and after infection by B. cinerea , in a range of abiotic environments created by various nitrogen and water supplies.

Key results

Limited nitrogen or water supplies increased tomato stem suscep

SUBMITTER: Lecompte F 

PROVIDER: S-EPMC5378192 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature