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Abiotic Stress Generates ROS That Signal Expression of Anionic Glutamate Dehydrogenases to Form Glutamate for Proline Synthesis in Tobacco and Grapevine[W]
- D. S. Skopelitis, N. Paranychianakis, +7 authors K. A. Roubelakis-Angelakis
- Medicine, Biology
- The Plant Cell Online
- 1 October 2006
Glutamate dehydrogenase (GDH) may be a stress-responsive enzyme, as GDH exhibits considerable thermal stability, and de novo synthesis of the α-GDH subunit is induced by exogenous ammonium and… Expand
Reduced activity of antioxidant machinery is correlated with suppression of totipotency in plant protoplasts.
We previously showed that during protoplast isolation, an oxidative burst occurred and the generation of active oxygen species was differentially mediated in tobacco (Nicotiana tabacum) and grapevine… Expand
Polyamines inhibit NADPH oxidase-mediated superoxide generation and putrescine prevents programmed cell death induced by polyamine oxidase-generated hydrogen peroxide
Our previous results indicate that during protoplast isolation an oxidative burst occurs [A.K. Papadakis and KA Roubelakis-Angelakis (1999) Plant Physiol 127:197–205] and that suppression of… Expand
The generation of active oxygen species differs in tobacco and grapevine mesophyll protoplasts.
Our previous results have shown that oxidative stress may reduce the regeneration potential of protoplasts, but only protoplasts that are able to supply extracellularly H(2)O(2) can actually divide… Expand
Oxidative stress could be responsible for the recalcitrance of plant protoplasts
Expression of totipotency and regeneration potentiality of plant protoplasts is a complex developmental phenomenon. The isolation per se is a stress-inducing procedure, during which, among others,… Expand
Biosynthesis profile and endogenous titers of polyamines differ in totipotent and recalcitrant plant protoplasts
The expression of totipotency in plant protoplasts is a complex developmental phenomenon and is affected by genetic and physiological factors. Polyamines (PAs) are known to be involved in a variety… Expand
Virological fitness of HIV in patients with resistance to enfuvirtide
Resistance to the HIV fusion inhibitor enfuvirtide is associated with mutations in the first heptad repeat region of gp41, but little is known of their impact on replicative fitness in vivo. We… Expand
Prevalence of transmitted HIV drug resistance since the availability of highly active antiretroviral therapy.
- J. S. Russell, D. Chibo, +5 authors C. Birch
- Communicable diseases intelligence quarterly…
- 1 June 2009
We investigated the prevalence of HIV-1-associated transmitted drug resistance (TDR) in Victoria from the time of first availability of highly active antiretroviral therapy. Drug resistance… Expand
Progress in Grapevine protoplast Technology
Protoplast Technology in Grapevine
Hastein (1880) was probably the first to use the term protoplast, from the greek proto (πρώτο = first) and plastos (πλαστός = created), for plant cells lacking cell walls and to isolate protoplasts… Expand