The Involvement of Nitric Oxide and Hydrogen Peroxide in eATP-Inhibited Pollen Germination and Tube Growth of Paulownia Tomentosa In Vitro

Abstract:

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Role of nitric oxide(NO) and hydrogen peroxide(H2O2) in eATP-inhibited reduction of in vitro pollen germination and tube growth of Paulownia tomentosa Steud. were studied. Results showed that exposure of the pollen to a series of eATP (0.2, 0.4, 0.6, 0.8, 1.0 mM) concentration for 3h resulted in not only the reduction of pollen germination but also the reduction of tube growth. Also, NOS inhibitor NG-nitro-L-Arg-methyl eater (L-NAME ), NO scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3- oxide(c-PTIO) and two scavengers of H2O2, ascorbic acid (ASC) and catalase (CAT) not only largely prevented eATP-inhibited pollen germination but also tube growth. These results indicated that NO and H2O2 are involved in eATP inhibited pollen germination and tube growth.

Info:

Periodical:

Advanced Materials Research (Volumes 343-344)

Edited by:

David Wang

Pages:

347-350

DOI:

10.4028/www.scientific.net/AMR.343-344.347

Citation:

Y. H. Zhang and X. P. She, "The Involvement of Nitric Oxide and Hydrogen Peroxide in eATP-Inhibited Pollen Germination and Tube Growth of Paulownia Tomentosa In Vitro", Advanced Materials Research, Vols. 343-344, pp. 347-350, 2012

Online since:

September 2011

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$35.00

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