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Nitric oxide counters ethylene effects on ripening fruits

Manjunatha, Girigowda and Kapuganti, J. Gupta and Veeresh, Lokesh and Bhagyalakshmi, N. (2012) Nitric oxide counters ethylene effects on ripening fruits. Plant Signaling and Behavior, 7 (4). pp. 476-483.

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Abstract

Ethylene plays a key role in promoting fruit ripening, so altering its biosynthesis/signaling could be an important means to delay this process. Nitric oxide (NO)-generated signals are now being shown to regulate ethylene pathways. NO signals have been shown to transcriptionally repress the expression of genes involved in ethylene biosynthesis enzymes and posttranslationally modify methionine adenosyl transferase (MAT) activity through S-nitrosylation to reduce the availably of methyl groups required to produce ethylene. Additionally, NO crosstalks with plant hormones and other signal molecules and act to orchestrate the suppression of ethylene effects by modulating enzymes/proteins that are generally triggered by ethylene signaling at post-climacteric stage. Thus, medication of endogenous NO production is suggested as a strategy to postpone the climacteric stage of many tropical fruits.

Item Type: Article
Uncontrolled Keywords: nitric oxide, ethylene, fruit ripening, reactive oxygen species
Subjects: 600 Technology > 08 Food technology > 24 Fruits
Divisions: Plant Cell Biotechnology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 08 Sep 2016 05:35
Last Modified: 08 Sep 2016 05:35
URI: http://ir.cftri.com/id/eprint/12275

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