Infection Risk-Based Application of Plant Resistance Inducers for the Control of Downy and Powdery Mildews in Vineyards DOI Creative Commons

Othmane Taibi,

Giorgia Fedele, Irene Salotti

и другие.

Agronomy, Год журнала: 2023, Номер 13(12), С. 2959 - 2959

Опубликована: Ноя. 30, 2023

Plant resistance inducers (PRIs) are potential alternatives for controlling grapevine downy (DM) and powdery (PM) mildews in vineyards. In a 3-year field study, we evaluated the efficacy of six commercial PRIs chemical natural origin against DM PM diseases when applied at designated vine growth stages mixture with low doses copper sulfur, only advised by weather-driven disease models. The severity incidence were each season key (i.e., end flowering, berries pea-sized, veraison, pre-harvest), areas under progress curves (AUDPC) calculated compared those nontreated vines. These risk-based applications resulted 41% 61% reduction interventions PM, respectively, to official advice integrated pest management growing area. provided control 88% 93% PM; on bunches never exceeded 5%. Overall, was expressed as AUDPC, observed higher all laminarin cerevisane DM. We also found that potassium phosphonate fosetyl-Al (commonly used DM) effective cos-oga (used PM) results broaden application integration viticulture.

Язык: Английский

Cell wall bricks of defence: the case study of oligogalacturonides DOI Creative Commons
C. Degli Esposti,

Laura Guerrisi,

Giulia Peruzzi

и другие.

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Март 25, 2025

The plant cell wall (CW) is more than a structural barrier; it serves as the first line of defence against pathogens and environmental stresses. During pathogen attacks or physical damage, fragments CW, known CW-derived Damage-Associated Molecular Patterns (CW-DAMPs), are released. These molecular signals play critical role in activating plant’s immune responses. Among CW-DAMPs, oligogalacturonides (OGs), derived from breakdown pectin, some most well-studied. This review highlights recent advances understanding functional signalling roles OGs, beginning with their formation through enzymatic CW degradation during invasion mechanical injury. We discuss how OGs perception triggers intracellular pathways that enhance regulate interactions microbes. Given excessive OG levels can negatively impact growth development, we also examine regulatory mechanisms plants use to fine-tune responses, avoiding overactivation hyper- immunity. As natural modulators, (and generally CW-DAMPs), offer promising, sustainable alternative chemical pesticides by enhancing crop resilience without harming environment. By strengthening defences supporting eco-friendly agricultural practices, hold great potential for advancing resilient farming systems.

Язык: Английский

Процитировано

1
Infection Risk-Based Application of Plant Resistance Inducers for the Control of Downy and Powdery Mildews in Vineyards DOI Creative Commons

Othmane Taibi,

Giorgia Fedele, Irene Salotti

и другие.

Agronomy, Год журнала: 2023, Номер 13(12), С. 2959 - 2959

Опубликована: Ноя. 30, 2023

Plant resistance inducers (PRIs) are potential alternatives for controlling grapevine downy (DM) and powdery (PM) mildews in vineyards. In a 3-year field study, we evaluated the efficacy of six commercial PRIs chemical natural origin against DM PM diseases when applied at designated vine growth stages mixture with low doses copper sulfur, only advised by weather-driven disease models. The severity incidence were each season key (i.e., end flowering, berries pea-sized, veraison, pre-harvest), areas under progress curves (AUDPC) calculated compared those nontreated vines. These risk-based applications resulted 41% 61% reduction interventions PM, respectively, to official advice integrated pest management growing area. provided control 88% 93% PM; on bunches never exceeded 5%. Overall, was expressed as AUDPC, observed higher all laminarin cerevisane DM. We also found that potassium phosphonate fosetyl-Al (commonly used DM) effective cos-oga (used PM) results broaden application integration viticulture.

Язык: Английский

Процитировано

4