Effects of exogenous nitric oxide on physiological characteristics of perennial ryegrass under cadmium and copper stress

Effects of exogenous nitric oxide on physiological characteristics of perennial ryegrass under... The effects of sodium nitroprusside (SNP, a donor of NO) on cadmium (Cd) and copper (Cu) toxicity in ryegrass seedlings (Lolium perenne L.) on plant growth, chlorophyll content, the accumulation of superoxide anion (O 2 ·− ), lipid peroxidation, and the activities of antioxidant enzymes were studied. Cd, Cu, and especially Cd+Cu caused serious chlorosis, inhibited the growth of ryegrass seedlings, and increased dramatically the accumulation of Cd and/or Cu in both shoots and roots. However, the addition of 100 μM SNP alleviated significantly the toxic effects induced by Cd or Cu, and especially by Cd+Cu, which was manifested in the increased plant growth, chlorophyll content, and the activation of antioxidant enzymes. Moreover, exogenous NO improved effectively the absorption of mineral elements. In addition, exogenous NO diminished markedly the accumulation of reactive oxygen species (ROS), malondialdehyde (MDA), and proline, but increased the content of ascorbic acid (AsA) and inhibited the translocation of Cd and Cu from roots to shoots. These data also suggested that the alleviating effect of NO may be better when the metal stresses are more serious. NO might act as one of the potential antioxidants to improve plant resistance to the Cd and/or Cu stress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Effects of exogenous nitric oxide on physiological characteristics of perennial ryegrass under cadmium and copper stress

Loading next page...
 
/lp/springer_journal/effects-of-exogenous-nitric-oxide-on-physiological-characteristics-of-ZFBXgxA0th
Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443715020028
Publisher site
See Article on Publisher Site

Abstract

The effects of sodium nitroprusside (SNP, a donor of NO) on cadmium (Cd) and copper (Cu) toxicity in ryegrass seedlings (Lolium perenne L.) on plant growth, chlorophyll content, the accumulation of superoxide anion (O 2 ·− ), lipid peroxidation, and the activities of antioxidant enzymes were studied. Cd, Cu, and especially Cd+Cu caused serious chlorosis, inhibited the growth of ryegrass seedlings, and increased dramatically the accumulation of Cd and/or Cu in both shoots and roots. However, the addition of 100 μM SNP alleviated significantly the toxic effects induced by Cd or Cu, and especially by Cd+Cu, which was manifested in the increased plant growth, chlorophyll content, and the activation of antioxidant enzymes. Moreover, exogenous NO improved effectively the absorption of mineral elements. In addition, exogenous NO diminished markedly the accumulation of reactive oxygen species (ROS), malondialdehyde (MDA), and proline, but increased the content of ascorbic acid (AsA) and inhibited the translocation of Cd and Cu from roots to shoots. These data also suggested that the alleviating effect of NO may be better when the metal stresses are more serious. NO might act as one of the potential antioxidants to improve plant resistance to the Cd and/or Cu stress.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Feb 15, 2015

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
Access to DeepDyve database
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off