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Black leaf streak disease affects starch metabolism in banana fruit

De Amorim Saraiva Lorenzo, Castelan Florence P., Shitakubo Renata, Mariko Aymoto Hassimotto Neusa, Purgatto Eduardo, Chillet Marc, Cordenunsi Beatriz R.. 2013. Black leaf streak disease affects starch metabolism in banana fruit. Journal of Agricultural and Food Chemistry, 61 (23) : pp. 5582-5589.

Journal article ; Article de revue à facteur d'impact
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Quartile : Outlier, Sujet : AGRICULTURE, MULTIDISCIPLINARY / Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED

Abstract : Black leaf streak disease (BLSD), also known as black sigatoka, represents the main foliar disease in Brazilian banana plantations. In addition to photosynthetic leaf area losses and yield losses, this disease causes an alteration in the pre- and postharvest behavior of the fruit. The aim of this work was to investigate the starch metabolism of fruits during fruit ripening from plants infected with BLSD by evaluating carbohydrate content (i.e., starch, soluble sugars, oligosaccharides, amylose), phenolic compound content, phytohormones, enzymatic activities (i.e., starch phosphorylases, alpha- and beta-amylase), and starch granules. The results indicated that the starch metabolism in banana fruit ripening is affected by BLSD infection. Fruit from infested plots contained unusual amounts of soluble sugars in the green stage and smaller starch granules and showed a different pattern of superficial degradation. Enzymatic activities linked to starch degradation were also altered by the disease. Moreover, the levels of indole-acetic acid and phenolic compounds indicated an advanced fruit physiological age for fruits from infested plots. (Résumé d'auteur)

Mots-clés Agrovoc : Musa acuminata, Cercosporiose, Mycosphaerella fijiensis, Mycosphaerella musicola, Amidon, Métabolisme des glucides, Fruit, Banane, Mûrissage, Composition chimique, AIA, Teneur en glucides, Composé phénolique, Activité enzymatique, Maladie des raies noires

Mots-clés géographiques Agrovoc : Sao Paulo

Mots-clés complémentaires : Maladie de Sigatoka

Classification Agris : Q04 - Food composition
H20 - Plant diseases
F60 - Plant physiology and biochemistry

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

  • De Amorim Saraiva Lorenzo, Universidade de São Paulo (BRA)
  • Castelan Florence P., Universidade de São Paulo (BRA)
  • Shitakubo Renata, Universidade de São Paulo (BRA)
  • Mariko Aymoto Hassimotto Neusa, Universidade de São Paulo (BRA)
  • Purgatto Eduardo, Universidade de São Paulo (BRA)
  • Chillet Marc, CIRAD-PERSYST-UMR Qualisud (REU)
  • Cordenunsi Beatriz R., Universidade de São Paulo (BRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/570222/)

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