نتایج جستجو برای: dormancy and reactive oxygen species

تعداد نتایج: 16940899  

خوش طبیعت , لعیا , مهدوی, مجید ,

Abstract During normal cellular activities Reactive Oxygen Species (ROS) and Reactive Nitrogen Species (RNS) are produced. In addition to beneficial functions they play a critical role in cell death and prevent apoptosis. Every cell is equipped with an extensive antioxidant defense system to combat the excessive production of active radicals. Oxidative stress occurs with destruction of cellu...

2013
Morad Shaban

Seed storage proteins are synthesized as sources of carbon, nitrogen and sulfur for the next generation of plants. Reactive oxygen species serve as second messengers for signal transduction; however, molecular targets of oxidant signaling have not been defined. Here, many researchers showes that ligand–receptor mediated signaling promotes reactive oxygen species– dependent protein carbonylation...

Journal: :Free Radical Biology and Medicine 2007

2014
Françoise Corbineau Qiong Xia Christophe Bailly Hayat El-Maarouf-Bouteau

Ethylene is an important component of the gaseous environment, and regulates numerous plant developmental processes including seed germination and seedling establishment. Dormancy, the inability to germinate in apparently favorable conditions, has been demonstrated to be regulated by the hormonal balance between abscisic acid (ABA) and gibberellins (GAs). Ethylene plays a key role in dormancy r...

Journal: :Plant physiology 2003
Camilla Haslekås Marte K Viken Paul E Grini Vigdis Nygaard Silje H Nordgard Trine J Meza Reidunn B Aalen

Peroxiredoxins (Prx) are thiol-dependent antioxidants containing one (1-cysteine [-Cys]) or two (2-Cys) conserved Cys residues that protect lipids, enzymes, and DNA against reactive oxygen species. In plants, the 1-Cys Prxs are highly expressed during late seed development, and the expression pattern is dormancy related in mature seeds. We have expressed the Arabidopsis 1-Cys Prx AtPER1 in Esch...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Natalya I Topilina Cathleen M Green Pradeepa Jayachandran Danielle S Kelley Matthew J Stanger Carol Lyn Piazza Sasmita Nayak Marlene Belfort

Inteins are mobile genetic elements that self-splice at the protein level. Mycobacteria have inteins inserted into several important genes, including those corresponding to the iron-sulfur cluster assembly protein SufB. Curiously, the SufB inteins are found primarily in mycobacterial species that are potential human pathogens. Here we discovered an exceptional sensitivity of Mycobacterium tuber...

Journal: :Circulation Research 2001

Journal: :iranian journal of basic medical sciences 0
gulay hacioglu department of physiology, faculty of medicine, giresun university, turkey ayse senturk department of clinical biochemistry, faculty of medicine, karadeniz technical university, turkey imran ince department of clinical biochemistry, faculty of medicine, karadeniz technical university, turkey ahmet alver department of clinical biochemistry, faculty of medicine, karadeniz technical university, turkey

objective(s): exposing to stress may be associated with increased production of reactive oxygen species (ros). therefore, high level of oxidative stress may eventually give rise to accumulation of oxidative damage and development of numerous neurodegenerative diseases. it has been presented that brain-derived neurotrophic factor (bdnf) supports neurons against various neurodegenerative conditio...

Journal: :Journal of Clinical Biochemistry and Nutrition 2009

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