Antifungal activity of leaf and stem extracts from various plant species on the incidence of Colletotrichum gloeosporioides of papaya and mango fruit after storage.
Bautista-Banos, S., Barrera-Necha, L. L., Bravo-Luna, L., and Bermudez-Torres, K.
Revista Mexicana de Fitopatologia. Volume 20, Number 1, 2002. Pages 8-12
2002
บทคัดย่อ
Aqueous extracts of leaves and stems of Achras zapota [Manilkara zapota], Annona reticulata, Bromelia hemisphaerica [B. hemispherica], Carica papaya, Citrus limon, Chrysophyllum cainito, Dyospiros ebenaster [Diospyros ebenaster], Mangifera indica, Persea americana, Pouteria sapota, Spondias purpurea and Tamarindus indicus [T. indica] from the state of Morelos, Mexico were tested for their antifungal activity against Colletotrichum gloeosporioides [Glomerella cingulata] in in vitro and in vivo experiments. Pawpaw and mango fruits were dipped in extracts, inoculated with Colletotrichum gloeosporioides, and stored for 7 days at room temperature to evaluate percentage infection and severity, solid solubles concentration (SSC), and fruit mass loss. Differences were found between the inhibitory effects in vitro and in vivo. Leaf extracts from Citrus limon and Persea americana totally inhibited growth of Colletotrichum gloeosporioides in vitro. Leaf extracts of Carica papaya completely inhibited postharvest rots of pawpaw, while leaf and stem extracts of D. ebenaster had an adequate fungicidal effect when applied to mango. Infection severity of pawpaw ranged from 0 to 50% of the fruit surface, while in mango only 25% of the surface was affected. Overall, infection severity was reduced for both pawpaw and mango when dipped in extracts. SSC and fruit mass loss varied among plant extracts; however, extracts did not affect fruit quality during storage.