Effect of nitric oxide on the sensitivity of banana fruit slices to ethylene

Yang, E., Yang, S. Y., Lu, W. J., Chen, J. Y., Qu, H. X., Jiang, Y. M., Joyce, D. C. and Duan, X. W. (2010) Effect of nitric oxide on the sensitivity of banana fruit slices to ethylene. Journal of Horticultural Science and Biotechnology, 85 1: 17-22.

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Name Description MIMEType Size Downloads
Author Yang, E.
Yang, S. Y.
Lu, W. J.
Chen, J. Y.
Qu, H. X.
Jiang, Y. M.
Joyce, D. C.
Duan, X. W.
Title Effect of nitric oxide on the sensitivity of banana fruit slices to ethylene
Journal name Journal of Horticultural Science and Biotechnology   Check publisher's open access policy
ISSN 1462-0316
Publication date 2010-01
Sub-type Article (original research)
Volume 85
Issue 1
Start page 17
End page 22
Total pages 6
Place of publication Kent, United Kingdom
Publisher Headley Brothers Ltd
Collection year 2011
Language eng
Formatted abstract
The effects of nitric oxide (NO) treatment on the sensitivity of banana fruit slices to ethylene were investigated. Fruit slices were partial-pressure infiltrated for 3 min in a NO donor solution of 5 mM sodium nitroprusside (SNP), followed by treatment with 100 μl I-1 ethylene for 24 h, then packed into polyethylene bags and stored for 5 d at 24°C. Control slices were treated with distilled water instead of SNP, then treated with ethylene. Changes in fruit firmness, chlorophyll content, respiration rate, the activities of three cell wall modifying enzymes [polygalacturonase (PG), endo-β-1,4-glucanase (EGase), and β-galactosidase (β-Gal)], and total amylase activity were measured. Expression of the expansin (MaExp1) and ethylene receptor (MaERS2) genes were also analysed. The application of NO, prior to ethylene exposure, retarded pulp softening and peel de-greening. Pre-treatment with NO also decreased the respiration rate of banana fruit slices during ripening. Delayed pulp softening by NO was associated with decreased activities of PG, EGase, β-Gal, and total amylase, as well as reduced expression of the MaExp1 gene. Expression of the MaERS2 gene was also suppressed in NO-treated banana fruit slices. Collectively, these findings suggest that NO pre-treatment decreased the sensitivity of banana fruit slices to ethylene, and thereby delayed ripening.
Keyword Beta
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
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Created: Sun, 28 Feb 2010, 00:03:45 EST