Paper Title:
Effects of Exogenous Nitric Oxide on the Photosynthesis of Taxus chinensis var. Mairei Seedings
  Abstract

In the study, the gas exchange parameters and chlorophyll contents of the leaves of Taxus chinensis var. mairei exposed to exogenous nitric oxide (NO) were determined. The seedlings were treated with sodium nitroprusside (SNP), a NO donor, at 5 different concentrations ranging from 0 mM to 1 mM. The experiment was conducted under controlled conditions in laboratory. The result showed that the 1 mM SNP increased the net photosynthetic rate (PN) of Taxus chinensis var. mairei slightly; however, other SNP treatments decreased PN. The water use efficiency (WUE) was increased by exogenous NO, while the stomata conductance (Gs) and the transpiration rate (E) were decreased. The concentrations of chlorophyll a, chlorophyll b, carotenoid and total chlorophyll exhibited 0.1 mM> 0.01 mM> 1 mM > 0 mM > 0.5 mM after 10 days of SNP treatments. The experiment proved that at suitable concentrations of exogenous NO signals increased the photosynthesis, and suggested that the SNP treatment might promote the growth of the Taxus chinensis var. mairei seedlings.

  Info
Periodical
Advanced Materials Research (Volumes 356-360)
Chapter
Chapter 15: Plant Protection
Edited by
Hexing Li, Qunjie Xu and Daquan Zhang
Pages
2774-2777
DOI
10.4028/www.scientific.net/AMR.356-360.2774
Citation
D. W. Li, M. L. Li, X. X. Wei, "Effects of Exogenous Nitric Oxide on the Photosynthesis of Taxus chinensis var. Mairei Seedings", Advanced Materials Research, Vols. 356-360, pp. 2774-2777, 2012
Online since
October 2011
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Price
$32.00
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