Next Article in Journal
Genetic Improvement of Wood Properties in Pinus kesiya Royle ex Gordon for Sawn Timber Production in Malawi
Previous Article in Journal
Modeling Anthropogenic Fire Occurrence in the Boreal Forest of China Using Logistic Regression and Random Forests
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Forests 2016, 7(11), 251; doi:10.3390/f7110251

Protective Effect of Nitric Oxide (NO) against Oxidative Damage in Larix gmelinii Seedlings under Ultraviolet-B Irradiation

1
College of Forestry, Northeast Forestry University, No. 26 Hexing Road Xiangfang District, Harbin 150040, China
2
Key Laboratory of Forest Plant Ecology, Northeast Forestry University, No. 26 Hexing Road Xiangfang District, Harbin 150040, China
These authors contributed equally to this paper.
*
Author to whom correspondence should be addressed.
Academic Editors: Maarten Nieuwenhuis and Timothy A. Martin
Received: 12 August 2016 / Revised: 14 October 2016 / Accepted: 18 October 2016 / Published: 26 October 2016
View Full-Text   |   Download PDF [912 KB, uploaded 26 October 2016]   |  

Abstract

Ultraviolet-B (UV-B) stress appears to be more striking than other research works because of the thin ozone layer. The protective influence of an exogenous nitric oxide donor and sodium nitroprusside (SNP) on the growth properties of Larix gmelinii seedlings was investigated under ultraviolet-B radiation conditions. The results indicated that 0.1 mM SNP could effectively alleviate the damage caused by ultraviolet-B radiation, and improved the seedling growth properties, the relative water content, and photosynthetic pigment content in leaves. Additionally, the photosynthetic capacity and antioxidant enzyme activity were increased during the exposure. On the contrary, the damage caused by active oxygen was decreased in SNP-treated seedling leaves. The damage caused by ultraviolet-B radiation was slightly reduced after treating with 0.01 mM SNP. Nevertheless, treatment with 0.5 mM SNP had a negative effect under ultraviolet-B radiation. Furthermore, supplementing NO (nitric oxide) improved the photosynthetic capacity and antioxidant enzyme activity and alleviated the damage of caused by active oxygen. The best effective concentration of SNP was 0.1 mM. Therefore, a suitable amount of exogenous NO can protect the Larix gmelinii seedlings and increase their tolerance to ultraviolet-B radiation. View Full-Text
Keywords: Ultraviolet-B; sodium nitroprusside; Larix gmelinii seedlings; photosynthetic capacity; antioxidant enzyme activity Ultraviolet-B; sodium nitroprusside; Larix gmelinii seedlings; photosynthetic capacity; antioxidant enzyme activity
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hu, H.; Zhou, Z.; Sun, X.; Zhang, Z.; Meng, Q. Protective Effect of Nitric Oxide (NO) against Oxidative Damage in Larix gmelinii Seedlings under Ultraviolet-B Irradiation. Forests 2016, 7, 251.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Forests EISSN 1999-4907 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top