English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Kheireddine A., Essghaier B., Hedi A., Dhieb C., Sadfi-Zouaoui N. (2018): New epiphytic yeasts able to reduce grey mold disease on apples. Plant Protect. Sci., 54: 248–257. Botrytis cinerea, the causal agent of grey mould, is a predominant agent causing extensive postharvest and quality losses of apples in Tunisia and worldwide. Efforts to manage this disease have met with limited success. For this reason, the use of microorganism preparations to control fungal diseases as an alternative to fungicides became an urgent need. From a total of 60 epiphytic yeasts, 10 were assessed in vitro against B. cinerea and selected isolates showing antagonism were evaluated for their ability to suppress the grey mould in vivo. On Petri plates, the most promising strains (three strains of Aureobasidium pullulans, one Cryptococcus flavescens, and one Citeromyces matritensis) showed a zone of inhibition against the pathogen fungus not exceeding 10 mm. In vivo, these isolates showed a remarkable antifungal activity since they significantly reduced disease severity on apples from 63% to 95% compared to the control. In conclusion, the work has demonstrated that the three strains, L7 of Aureobasidium pullulans , L2 of Citeromyces matritensis, and L10 of Cryptococcus flavescens, were highly effective and can be used as potential biocontrol agents in controlling the post-harvest decay of apples caused by B. cinerea. Keyword: Botrytis cinerea; apples; antagonistic yeasts; biocontrol Supported by the Ministry of Higher Education and Scientific Research of Tunisia, Grant No. LR16ES05. During the last two decades, the horticulture sector based on apples and pears has undergone a remarkable expansion in Tunisia. In fact, Tunisia is the third producer of apples on the African continent with 11% of the production. Despite its vital role in national economic development, this culture is exposed to many challenges such as phytosanitary problems which cause significant losses. The grey mould caused by Botrytis cinerea is one of the most destructive diseases causing minor rot throughout the growing season and significant rot within packinghouses. It is the first post-harvest pathogen in damaging pears and the second, after blue mould, in affecting apples (Rosenberger 1990). Chemical control was the only means used to combat these pathogens (Rojas-Grau et al. 2008; Salomao et al. 2008; Liu et al. 2013). However, the emergence of resistant fungal strains to commonly used chemicals, the detection of residues on food and the deleterious effect on the plant and its environment imposed the need to develop safer and more eco-friendly alternatives for the control of postharvest decays (Romnazzi et al. 2016; Liu et al. 2017). Biological control of pathogens in various storage conditions using the natural microflora existing on fruits (bacteria, yeasts, and/or fungi) has emerged as one of the most promising alternatives to chemicals (Bull et al. 1997).