NDLI: The fluxes of H2O2 and O2 can be used to evaluate seed germination and vigor of Caragana korshinskii

Content Provider	Springer Nature Link
Author	Li, Jiaguo Wang, Yu Pritchard, Hugh W. Wang, Xiaofeng
Copyright Year	2014
Abstract	Seed deterioration is detrimental to plant germplasm conservation, and predicting seed germination and vigor with reliability and sensitivity means is urgently needed for practical problems. We investigated the link between hydrogen peroxide (H2O2) flux, oxygen influx and seed vigor of Caragana korshinskii by the non-invasive micro-test technique (NMT). Some related physiological and biochemical changes in seeds were also determined to further explain the changes in the molecular fluxes. The results showed that there was a good linear relationship between germination and H2O2 flux, and that O2 influx was more suitable for assessing seed vigor. H2O2 flux changed relatively little initially, mainly affected by antioxidants (APX, CAT and GSH) and H2O2 content; afterward, the efflux increased more and more rapidly due to high membrane permeability. With the damage of mitochondrial respiration and membrane integrity, O2 influx was gradually reduced. We propose that monitoring H2O2 and O2 fluxes by NMT may be a reliable and sensitive method to evaluate seed germination and vigor.
Starting Page	1363
Ending Page	1373
Page Count	11
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	239
Issue Number	6
e-ISSN	14322048
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-03-23
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Seed deterioration Non-invasive micro-test technique H2O2 flux O2 influx Seed vigor Plant Sciences Agriculture Ecology Forestry
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

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