Retention of the fruit peduncle at harvest retains sap and contributes to resistance against post-harvest anthracnose in 'Kensington Pride' but not in 'R2E2' mango

Hassan, M. K., Dann, E. K., Coates, L. M., Hofman, P. J. and Irving, D. E. (2011) Retention of the fruit peduncle at harvest retains sap and contributes to resistance against post-harvest anthracnose in 'Kensington Pride' but not in 'R2E2' mango. Journal of Horticultural Science and Biotechnology, 86 3: 261-266.

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Author Hassan, M. K.
Dann, E. K.
Coates, L. M.
Hofman, P. J.
Irving, D. E.
Title Retention of the fruit peduncle at harvest retains sap and contributes to resistance against post-harvest anthracnose in 'Kensington Pride' but not in 'R2E2' mango
Journal name Journal of Horticultural Science and Biotechnology   Check publisher's open access policy
ISSN 0022-1589
1462-0316
Publication date 2011-05-01
Sub-type Article (original research)
Volume 86
Issue 3
Start page 261
End page 266
Total pages 6
Place of publication Ashford, Kent, U.K.
Publisher Headley Brothers
Language eng
Formatted abstract
‘Kensington Pride’ mango (Mangifera indica L.) fruit stored with 2 – 3 cm-long peduncles had significantly smaller anthracnose lesion areas after being inoculated with Colletotrichum gloeosporioides at 107 spores ml–1 than fruit that had been desapped and stored according to normal commercial practice. In contrast, lesion development in ‘R2E2’ mango fruit was not influenced by the presence of the peduncle. ‘Kensington Pride’ fruit, with their peduncles attached, contained significantly higher levels of 5--heptadecenylresorcinol and 5--pentadecylresorcinol in their peel compared with desapped fruit. At harvest, ‘Kensington Pride’ fruit sap contained approx. 61% of the total 5--heptadecenylresorcinol and 47% of the total 5-n-pentadecylresorcinol present in the fruit. ‘R2E2’ fruit sap contained lower concentrations of alk(en)ylresorcinols but, in both mango varieties, retention of the peduncle did not influence fruit ripening. These results suggest that harvesting ‘Kensington Pride’ mango fruit with a long (2 – 3 cm) peduncle maintained alk(en)ylresorcinol concentrations in the peel and in resin duct sap, and contributed to improved fruit resistance against anthracnose disease. Lower concentrations of sap alk(en)ylresorcinols correlated with weaker resistance to anthracnose in ‘R2E2’ mango fruit.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
Queensland Alliance for Agriculture and Food Innovation
 
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Created: Wed, 05 Oct 2011, 16:44:35 EST by Dr Elizabeth Dann on behalf of Qld Alliance for Agriculture and Food Innovation