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Dormancy breakage of Stylosanthes humilis seeds by aluminium
| Content Provider | Scilit |
|---|---|
| Author | Ribeiro, Dimas M. Mapeli, Ana M. Carnelossi, Marcelo A. G. Delatorre, Carla A. Barros, Raimundo S. |
| Copyright Year | 2010 |
| Description | Physiological dormancy of scarified seeds of Townsville stylo (Stylosanthes humilis HBK) was released by acidic aluminium $(Al^{3+}$) solution. Antiethylenic substances inhibited germination of low-pH-stimulated dormant seeds, with a correspondingly low ethylene production and low activity of 1-aminocyclopropane-1-carboxylate (ACC) oxidase in seeds. On the other hand, antiethylenic substances did not decrease the germination of $Al^{3+}$-stimulated seeds, but ACC oxidase activity and ethylene production by the seeds was decreased to a large extent. These data provide evidence that dormancy breakage by $Al^{3+}$ differs from that caused by low pH and is not associated with ethylene production. Similarly to $Al^{3+}$ action, methyl viologen (MV), a reactive oxygen species-generating compound, broke dormancy of Townsville stylo seeds. Sodium selenate and N-acetyl cysteine, antioxidant compounds, largely decreased germination of MV- and $Al^{3+}$-stimulated dormant seeds. Altogether these data point to oxidative radicals constituting key molecules in the chain of events triggered by $Al^{3+}$ leading to dormancy breakage. |
| Related Links | https://locus.ufv.br//bitstream/123456789/23309/1/artigo.pdf https://www.cambridge.org/core/services/aop-cambridge-core/content/view/BE8EB46603C18EB0E92AEA9333ABB651/S0960258510000164a.pdf/div-class-title-dormancy-breakage-of-span-class-italic-stylosanthes-humilis-span-seeds-by-aluminium-div.pdf |
| Ending Page | 152 |
| Page Count | 8 |
| Starting Page | 145 |
| ISSN | 09602585 |
| e-ISSN | 14752735 |
| DOI | 10.1017/s0960258510000164 |
| Journal | Seed Science Research |
| Issue Number | 3 |
| Volume Number | 20 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2010-09-01 |
| Access Restriction | Open |
| Subject Keyword | Seed Science Research Plant Sciences Reactive Oxygen Species Stylosanthes Humilis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
