Details

Autor(en) / Beteiligte

• António V. Brito
• Nuno Jorge
• Isabel Cortez
• Piebiep Goufo

Titel

Primary Metabolites (Free Sugars, Amino, Organic and Fatty Acids) of Grape Berries as Influenced by Esca Complex Disease (Grapevine Leaf Stripe) Foliar Symptom Severity

Ist Teil von

• Chemistry Proceedings, 2022, Vol.10 (1), p.27

Ort / Verlag

MDPI AG

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this study, berry samples were collected from healthy (control) and symptomatic vines of the white varieties Viosinho and Malvasia-fina. Symptomatic vines showed two different degrees of severity at harvest, namely chlorotic and scorched leaves (severity level 1) and tiger stripe leaves (severity level 2). The total fatty acid content was reduced in both varieties and the total organic acid content was unchanged. The total free sugar content increased with symptom progression in Viosinho but remained unchanged in Malvasia-fina. Varietal differences were observed in the response of amino acids, whose levels increased in Malvasia-fina and decreased in Viosinho.