Effect of suppression of ethylene biosynthesis on flavor products in tomato fruits

Effect of suppression of ethylene biosynthesis on flavor products in tomato fruits To elucidate the role of ethylene in the production of flavor compounds by tomato fruits, wild-type tomato (Lycopersicon esculentum L., cv. Lichun) and its transgenic antisense LeACS2 line with suppressed ethylene biosynthesis were used. The metabolism of individual sugars was ethylene-independent. However, citric acid and malic acid were under ethylene regulation. The content of these acids was higher in transgenic tomato fruits and returned to normal level after transgenic fruits were treated with ethylene. Because most of amino acids, which are important precursors of volatiles, were shown to be correlated with ethylene, we surmise that amino acid-related aroma volatiles were also affected by ethylene. Headspace analysis of volatiles showed a significant accumulation of aldehydes in wild-type tomato fruits during fruit ripening and showed a dramatic decrease in most aroma volatiles in transgenic tomato fruits as compared with wild-type fruits. The production of hexanal, hexanol, trans-2-heptenal, cis-3-hexanol, and carotenoid-related volatiles, except β-damascenone and β-ionone, was inhibited by suppression of ethylene biosynthesis. No remarkable differences were observed in the concentrations of cis-3-hexenal and trans-2-hexenal between transgenic and wild-type tomato fruits, indicating these two volatiles to be independent of ethylene. Thus, there are various regulation patterns of flavor profiles in tomato fruits by ethylene. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Effect of suppression of ethylene biosynthesis on flavor products in tomato fruits

Loading next page...
 
/lp/springer_journal/effect-of-suppression-of-ethylene-biosynthesis-on-flavor-products-in-nTn8cYCveL
Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Sciences; Plant Physiology
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443707010128
Publisher site
See Article on Publisher Site

Abstract

To elucidate the role of ethylene in the production of flavor compounds by tomato fruits, wild-type tomato (Lycopersicon esculentum L., cv. Lichun) and its transgenic antisense LeACS2 line with suppressed ethylene biosynthesis were used. The metabolism of individual sugars was ethylene-independent. However, citric acid and malic acid were under ethylene regulation. The content of these acids was higher in transgenic tomato fruits and returned to normal level after transgenic fruits were treated with ethylene. Because most of amino acids, which are important precursors of volatiles, were shown to be correlated with ethylene, we surmise that amino acid-related aroma volatiles were also affected by ethylene. Headspace analysis of volatiles showed a significant accumulation of aldehydes in wild-type tomato fruits during fruit ripening and showed a dramatic decrease in most aroma volatiles in transgenic tomato fruits as compared with wild-type fruits. The production of hexanal, hexanol, trans-2-heptenal, cis-3-hexanol, and carotenoid-related volatiles, except β-damascenone and β-ionone, was inhibited by suppression of ethylene biosynthesis. No remarkable differences were observed in the concentrations of cis-3-hexenal and trans-2-hexenal between transgenic and wild-type tomato fruits, indicating these two volatiles to be independent of ethylene. Thus, there are various regulation patterns of flavor profiles in tomato fruits by ethylene.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Jan 6, 2007

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off