Black Leaf Streak Disease Affects Starch Metabolism in Banana Fruit

Black Leaf Streak Disease Affects Starch Metabolism in Banana Fruit

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 wo...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry Vol. 61; no. 23; pp. 5582 - 5589
Main Authors: Saraiva, Lorenzo de Amorim, Castelan, Florence Polegato, Shitakubo, Renata, Hassimotto, Neuza Mariko Aymoto, Purgatto, Eduardo, Chillet, Marc, Cordenunsi, Beatriz Rosana
Format: Journal Article
Language:English
Published: Washington, DC American Chemical Society 12-06-2013
Subjects:
amylose
Ascomycota - physiology
bananas
beta-amylase
Biological and medical sciences
black Sigatoka
carbohydrate content
enzyme activity
Food engineering
Food industries
Fruit - metabolism
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
indole acetic acid
leaf area
leaves
Life Sciences
metabolism
Musa - metabolism
Musa - microbiology
phenolic compounds
Plant Leaves - metabolism
Plant Leaves - microbiology
postharvest physiology
ripening
Starch - metabolism
Starch and starchy product industries
starch granules
sugars
banana
Musa
starch metabolism
black sigatoka
black leaf streak disease
Monocotyledones
Fruit
Disease
Starch
Musaceae
Plant leaf
Metabolism
Banana
Plant part
Angiospermae
Carbohydrate
Spermatophyta
Polysaccharide
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Summary: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, α- and β-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.
Bibliography:http://dx.doi.org/10.1021/jf400481c
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0021-8561
1520-5118
DOI:10.1021/jf400481c