Arabidopsis mutants with a reduced seed dormancy

Plant Physiology
K M Léon-KloosterzielM Koornneef

Abstract

The development of seed dormancy is an aspect of seed maturation, the last stage of seed development. To isolate mutants of Arabidopsis thaliana that are affected in this process, we selected directly for the absence of dormancy among freshly harvested M2 seeds. The screen yielded two mutants exhibiting a reduced dormancy, rdo1 and rdo2, that are specifically affected in dormancy determined by the embryo. The rdo1 and rdo2 mutants show normal levels of abscisic acid and the same sensitivity to abscisic acid, ethylene, auxin, and cytokinin as the wild type. The rdo2 mutant but not the rdo1 mutant has a reduced sensitivity to the gibberellin biosynthesis inhibitor tetcyclacis. Double-mutant analysis suggested that the RDO1 and RDO2 genes are involved in separate pathways leading to the development of dormancy. We assume that the RDO2 gene controls a step in the induction of dormancy that is most likely induced by abscisic acid and is expressed as an increase of the gibberellin requirement for germination.

References

Aug 1, 1993·The Plant Cell·S E Jacobsen, N E Olszewski

❮ Previous
Next ❯

Citations

Jan 1, 2008·The Arabidopsis Book·Leónie Bentsink, Maarten Koornneef
Jan 1, 2002·The Arabidopsis Book·Ruth R Finkelstein, Christopher D Rock
Nov 30, 2010·International Journal of Biometeorology·Amelia Caffarra, Alison Donnelly
Sep 10, 2010·Journal of Biosciences·Veeraputhiran Subbiah, Karingu Janardhan Reddy
Jan 15, 2002·Current Opinion in Plant Biology·Maarten KoornneefHenk Hilhorst
Feb 23, 2007·Organic & Biomolecular Chemistry·Timothy R SmithAndrew Marsh
Sep 6, 2000·The Plant Journal : for Cell and Molecular Biology·B DubreucqL Lepiniec
Jun 12, 2013·Proceedings of the National Academy of Sciences of the United States of America·Fabián E VaistijIan A Graham
Apr 14, 1999·Proceedings of the National Academy of Sciences of the United States of America·C Alonso-BlancoM Koornneef
Jun 18, 2002·Plant Physiology·Hemayet UllahAlan M Jones
Jun 14, 2003·Plant Physiology·Emile J M ClerkxMaarten Koornneef
Jul 19, 2000·The Plant Cell·N BeaudoinJ Giraudat
Dec 29, 2000·Genes & Genetic Systems·T Fukuhara, H J Bohnert
Oct 27, 2006·Proceedings of the National Academy of Sciences of the United States of America·Leónie BentsinkMaarten Koornneef
Oct 26, 2000·Proceedings of the National Academy of Sciences of the United States of America·M SeoT Koshiba
Jan 1, 2010·The Plant Journal : for Cell and Molecular Biology·Ronny V L JoosenHenk W M Hilhorst
Dec 8, 2015·Plant & Cell Physiology·Naoto SanoMitsunori Seo
Jun 2, 2005·Evolution; International Journal of Organic Evolution·Kathleen DonohueJohanna Schmitt
Oct 19, 2005·Plant, Cell & Environment·A AlboresiH-N Truong
Oct 11, 2003·The Plant Journal : for Cell and Molecular Biology·Arjon J van Hengel, Keith Roberts
Nov 22, 2007·The Plant Journal : for Cell and Molecular Biology·Esther CarreraMichael J Holdsworth
Jan 23, 2008·The Plant Journal : for Cell and Molecular Biology·Jun FangChengcai Chu
Jan 24, 2007·Plant, Cell & Environment·Kathleen DonohueDeepak Barua
Mar 24, 2006·The Plant Journal : for Cell and Molecular Biology·Sunandini Sridha, Keqiang Wu
Aug 21, 2008·Journal of Integrative Plant Biology·Yong LiaoWan-Ke Zhang
Mar 6, 2007·The Plant Journal : for Cell and Molecular Biology·Guodong Wang, Eran Pichersky
Apr 21, 2006·The Plant Journal : for Cell and Molecular Biology·David M PriestDianna J Bowles
Apr 22, 2015·The Plant Journal : for Cell and Molecular Biology·Ingo AppelhagenBernd Weisshaar

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.