Interactive effects of gibberellin A3 and ascorbic acid on lipid peroxidation and antioxidant enzyme activities in Glycine max seedlings under nickel stress

Interactive effects of gibberellin A3 and ascorbic acid on lipid peroxidation and antioxidant... The effects of nickel in combination with ascorbic acid (AsA) and gibberellin on 7-day-old soybean seedlings were examined. Exposure to 0.25 mM NiCl2 × 6H2O for 5 days resulted in toxicity symptoms, such as formation of reddish-brown mottled spots on the leaf blade. Addition of 0.05 mM GA3 or 1 mM AsA reduced toxic effects of nickel. After their simultaneous application, these symptoms did not appear. Ni decreased dry weights of roots and shoots and reduced chlorophyll content in leaves. An enhanced level of lipoxygenase activity and malondialdehyde, and changes in the activities of the antioxidant enzymes, catalase, guaiacol peroxidase and ascorbate peroxidase, in both roots and leaves indicated that Ni caused an oxidative stress in soybean plants. The Ni-stressed seedlings exposed to AsA or GA3, especially to GA3 plus AsA, exhibited an improved growth as compared to Ni-treated plants. GA3 decreased Ni uptake by roots, while ascorbic acid considerably reduced root-to-shoot translocation of Ni. Interaction of AsA plus GA3 prevented the decrease in chlorophyll content and lipid peroxidation as well as increased the activities of the antioxidant enzymes. These results suggest that GA3 plus AsA treatment counteracts the negative effects of Ni on soybean seedlings. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Interactive effects of gibberellin A3 and ascorbic acid on lipid peroxidation and antioxidant enzyme activities in Glycine max seedlings under nickel stress

Loading next page...
 
/lp/springer_journal/interactive-effects-of-gibberellin-a3-and-ascorbic-acid-on-lipid-Uo0NOKeG4P
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/S1021443707010116
Publisher site
See Article on Publisher Site

Abstract

The effects of nickel in combination with ascorbic acid (AsA) and gibberellin on 7-day-old soybean seedlings were examined. Exposure to 0.25 mM NiCl2 × 6H2O for 5 days resulted in toxicity symptoms, such as formation of reddish-brown mottled spots on the leaf blade. Addition of 0.05 mM GA3 or 1 mM AsA reduced toxic effects of nickel. After their simultaneous application, these symptoms did not appear. Ni decreased dry weights of roots and shoots and reduced chlorophyll content in leaves. An enhanced level of lipoxygenase activity and malondialdehyde, and changes in the activities of the antioxidant enzymes, catalase, guaiacol peroxidase and ascorbate peroxidase, in both roots and leaves indicated that Ni caused an oxidative stress in soybean plants. The Ni-stressed seedlings exposed to AsA or GA3, especially to GA3 plus AsA, exhibited an improved growth as compared to Ni-treated plants. GA3 decreased Ni uptake by roots, while ascorbic acid considerably reduced root-to-shoot translocation of Ni. Interaction of AsA plus GA3 prevented the decrease in chlorophyll content and lipid peroxidation as well as increased the activities of the antioxidant enzymes. These results suggest that GA3 plus AsA treatment counteracts the negative effects of Ni on soybean seedlings.

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 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

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