Dec 26, 2008 · Using two sunflower (Helianthus annuus L.) cultivars with different sensitivity to infection by the pathogen Plasmopara halstedii, we studied key components involved in RNS and ROS metabolism.

Sunflower (Helianthus annuus L.) seed dormancy is regulated by reactive oxygen species (ROS) and can be alleviated by incubating dormant embryos in the presence of methylviologen (MV), a ROS-generating compound.

May 29, 2013 · During the course of stigma development in sunflower (bud, staminate and pistillate stages), correlation is evident among the accumulation of reactive oxygen species (ROS), nitric oxide (NO), and the activities of ROS scavenging enzymes [superoxide dismutase (SOD) and peroxidase (POD)].

Sunflower chlorotic mottle virus (SuCMoV) is a recently described potyvirus that causes systemic infections in sunflower plants leading to chlorotic mottling and important growth reductions and yield losses. Oxidative damage is expressed after symptom development in …

Estimation of reactive oxygen species (ROS) content, quantitative, and zymographic analysis of ROS scavenging enzymes (POD, SOD, and GR) and NO accumulation in relation with seed development in sunflower.

We have focused on the role of reactive oxygen species (ROS) and phytohormons (ABA and ethylene) in the biochemical and molecular regulation of plant response to sunflower phytotoxins. Key Words: ABA, allelopathy, ethylene, H 2 O 2, reactive oxygen species, seed germination.

The novel sunflower gene HaGLP1 is the first germin-like protein characterized from the family Asteraceae. It alters the host redox status and confers protection against Sclerotinia sclerotiorum and Rhizoctonia solani.

May 8, 2014 · Sunflower (Helianthus annuus L.) seed dormancy is regulated by reactive oxygen species (ROS) and can be alleviated by incubating dormant embryos in the presence of methylviologen (MV), a ROS-generating compound. Ethylene alleviates sunflower seed dormancy whereas abscisic acid (ABA) represses germination.

In our study, the treatment of ET to induce aerenchyma formation in sunflower stem was used by spraying 150 μM ethephon. The treatment of ROS to induce aerenchyma formation was used by spraying 50 mM AT, as the catalase inhibitor to promote ROS accumulation in the cells.

We have focused on the role of reactive oxygen species (ROS) and phytohormons (ABA and ethylene) in the biochemical and molecular regulation of plant response to sunflower phytotoxins. distribute. Bioscience. ical reactions resulting in modifications of variety processes.