Reactive oxygen species, ABA and nitric oxide interactions on the germination of warm-season C₄-grasses

Hydrogen peroxide (H₂O₂) as a source of reactive oxygen species (ROS) significantly stimulated germination of switchgrass (Panicum virgatum L.) seeds with an optimal concentration of 20 mM at both 25 and 35°C. For non-dormant switchgrass seeds exhibiting different levels of germination, treatment wi...

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Veröffentlicht in:	Planta 2007-08, Vol.226 (3), p.697-708
Hauptverfasser:	Sarath, Gautam, Hou, Guichuan, Baird, Lisa M, Mitchell, Robert B
Format:	Artikel
Sprache:	eng
Schlagworte:	ABA Abscisic acid Abscisic Acid - metabolism Andropogon gerardii Biological and medical sciences Coleoptile Cotyledon - drug effects Cyclic N-Oxides - pharmacology Diphenyleneiodonium Elongation Fundamental and applied biological sciences. Psychology Germination Germination - physiology Germination and dormancy Grasses Hydrogen peroxide Hydrogen Peroxide - pharmacology Hydrolysis - drug effects Imidazoles - pharmacology Models, Biological NAD(P)H oxidase NADPH Oxidases - antagonists & inhibitors Nitric oxide Nitric Oxide - metabolism Onium Compounds - pharmacology Oxidase Oxygen Panicum virgatum Peroxidase - metabolism Plant growth Plant physiology and development Plant Proteins - metabolism Plant Roots - drug effects Poaceae - physiology Prairies Reactive oxygen species Reactive Oxygen Species - metabolism Seasons Seed germination Seedlings Seeds Seeds - cytology Seeds - drug effects Warm-season C₄ grasses
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Zusammenfassung:	Hydrogen peroxide (H₂O₂) as a source of reactive oxygen species (ROS) significantly stimulated germination of switchgrass (Panicum virgatum L.) seeds with an optimal concentration of 20 mM at both 25 and 35°C. For non-dormant switchgrass seeds exhibiting different levels of germination, treatment with H₂O₂ resulted in rapid germination (
ISSN:	0032-0935 1432-2048
DOI:	10.1007/s00425-007-0517-z