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Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Author

Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Author "Mur, Luis A. J."

Now showing items 21-40 of 43

Identification of genes involved in the floral transition at the shoot apical meristem of Lolium perenne L. by use of suppression subtractive hybridisation

Mur, Luis A. J.; Donnison, Iain S.; Milbourne, Dan; Guiney, Emma; Byrne, Stephen; Barth, Susanne (2009-09-17)

Generally, heading in Lolium perenne L. (perennial ryegrass) is associated with a reduction in the feed quality of the forage and therefore extending the period of vegetative growth during the growing season will contribute ...
In planta measurements of oxidative bursts elicited by avirulent and virulent bacterial pathogens suggests that H2O2 is insufficient to elicit cell death in tobacco

Draper, John H.; Kenton, Paul; Mur, Luis A. J. (2005-02-03)

A rapid and localized programmed cell death – the hypersensitive response (HR) – is a widely utilized plant resistance mechanism against pathogens. Studies have implicated H2O2 generation as a key elicitory mechanism in ...
The investigation of flowering control in late/rare flowering Lolium perenne

Guiney, Emma; Byrne, S.; Donnison, Iain S.; Mur, Luis A. J. (2005)
Laser photoacoustic detection allows in planta detection of nitric oxide in tobacco following challenge with avirulent and virulent pseudomonas syringae pathovars

Harren, Frans J. M.; Smith, Aileen R.; Laarhoven, Lucas J. J.; Holton, Nicholas J.; Mur, Luis A. J.; Santosa, I. Edi (2005-07-01)

We demonstrate the use of laser photoacoustic detection (LPAD) as a highly sensitive method to detect in planta nitric oxide (.NO) production from tobacco (Nicotiana tabacum). LPAD calibration against .NO gas demonstrated ...
Magnaporthe grisea interactions with the model grass Brachypodium distachyon closely resemble those with rice (Oryza sativa)

Routledge, A. P. M.; Draper, John H.; Talbot, N. J.; Smith, J. V.; Mur, Luis A. J.; Shelley, G. (Blackwell Publishing, 2004)

Germplasm of Brachypodium distachyon was inoculated with Magnaporthe grisea using either rice- (Guy11) or grass-adapted (FAG1.1.1, PA19w-06, PA31v-01) host-limited forms of the fungus, and interactions with varying degrees ...
Metabolomic approaches reveal that phosphatidic and phosphatidyl glycerol phospholipids are major discriminatory non-polar metabolites in responses by Brachypodium distachyon to challenge by Magnaporthe grisea.

Mur, Luis A. J.; Heald, Jim K.; Allwood, J. William; Goodacre, Royston; Ellis, David I. (2006-03-30)

Metabolomic approaches were used to elucidate some key metabolite changes occurring during interactions of Magnaporthe grisea– the cause of rice blast disease – with an alternate host, Brachypodium distachyon. Fourier-transform ...
A mutation in the Cap Binding Protein 20 gene confers drought tolerance to Arabidopsis

Dalmadi, A.; Koncz, C.; Mur, Luis A. J.; Papp, I.; Dulai, S. (2004-07)

In a genetic screen for Arabidopsis mutants displaying pleiotropic alterations in vegetative development and stress responses we have identified a T-DNA insertion mutation in the Cap Binding Protein 20 (CBP20) gene, that ...
Nitric oxide contributes both to papilla-based resistance and the hypersensitive response in barley attacked by Blumeria graminis f. sp.hordei

Prats, Elena; Sanderson, Ruth; Carver, Timothy L. W.; Mur, Luis A. J. (2005-01)

Nonspecific penetration resistance due to papilla formation and race-specific hypersensitive response (HR) can both contribute to Blumeria graminis resistance in barley. Some effective papillae form even in the susceptible ...
Nitric oxide generation in Vicia faba phloem cells reveals them to be sensitive detectors as well as possible systemic transducers of stress

van Bel, A. J. E.; Furch, A. C. U.; Gaupels, F.; Kogel, K. H.; Will, T.; Mur, Luis A. J. (2008-05-01)

• Vascular tissue was recently shown to be capable of producing nitric oxide (NO), but the production sites and sources were not precisely determined. Here, NO synthesis was analysed in the phloem of Vicia faba in response ...
Nitric oxide in plants an assessment of the current state of knowledge

Mur, Luis A. J.; Mandon, Julien; Persijn, Stefan; Cristescu, Simona M.; Moshkov, Igor E.; Novikova, Galina V.; Hall, Michael A.; Harren, Frans J. M.; Hebelstrup, Kim H; Gupta, Kapuganti J (2013)

BACKGROUND AND AIMS: After a series of seminal works during the last decade of the 20th century, nitric oxide (NO) is now firmly placed in the pantheon of plant signals. Nitric oxide acts in plant-microbe interactions, ...
Nitric oxide interacts with salicylate to regulate biphasic ethylene production during the hypersensitive response

Hall, Michael A.; Laarhoven, Lucas J. J.; Harren, Frans J. M.; Mur, Luis A. J.; Smith, Aileen R. (2008-09-17)

C2H4 is associated with plant defense, but its role during the hypersensitive response (HR) remains largely uncharacterized. C2H4 production in tobacco (Nicotiana tabacum) following inoculation with HR-eliciting Pseudomonas ...
NO provides mainly avr-dependent inputs into cell death mechanisms associated with the hypersensitive response in tobacco

Harren, Frans J. M.; Mur, Luis A. J.; Kenton, Paul; Smith, A.; Laarhoven, L. (2007-04)

The hypersensitive response (HR) is a localised programmed cell death that can aid in neutralising infections by pathogens. H2O2 and NO are proposed elicitors of the HR and we have employed in planta assays to measure the ...
NO way to live : the various roles of nitric oxide in plant-pathogen interactions

Carver, Timothy L. W.; Prats, Elena; Mur, Luis A. J. (2005-12-23)

Nitric oxide has attracted considerable interest from plant pathologists due its established role in regulating mammalian anti-microbial defences, particularly via programmed cell death (PCD). Although NO plays a major ...
NO way to treat a cold

Hinch, D. K.; Gupta, K. J.; Mur, Luis A. J. (2010-12-22)

Temperature is one of the crucial factors that determines plant survival and distribution on the Earth. Various plant species acquire enhanced freezing tolerance by cold acclimation in which prior exposure to low, but ...
The outcomes of concentration-specific interactions between salicylate and jasmonate signaling include synergy, antagonism, and oxidative stress leading to cell death

Atzorn, Rainer; Mur, Luis A. J.; Wasternack, Claus; Kenton, Paul; Miersch, Otto (2005-12-23)

Salicylic acid (SA) has been proposed to antagonize jasmonic acid (JA) biosynthesis and signaling. We report, however, that in salicylate hydroxylase-expressing tobacco (Nicotiana tabacum) plants, where SA levels were ...
Pathogen-derived nitric oxide influences formation of the appressorium infection structure in the phytopathogenic fungus Blumeria graminis

Prats, Elena; Mur, Luis A. J.; Carver, Timothy L. W. (2008-04-13)

Nitric oxide (NO) is an important signal in plant resistance to pathogens. Here we report that NO is also generated by Blumeria graminis f.sp. hordei as a pathogenesis determinant on barley. Infection by B. graminis f.sp. ...
The phytohormone salicylic acid influences autolysis in ruminant-ingested plant cells

Kingston-Smith, Alison H.; Kyme, Edward; Davies, Teri E.; Mur, Luis A. J. (2009-06-27)

Fresh forage ingested by grazing cattle is subject to a combination of stresses including heat, anoxia and attack by micro-organisms culminating in autolysis: self-mediated breakdown of protein and DNA. Understanding the ...
Post-ingestion induction of plant cell death: Regulation and implications

Kingston-Smith, Alison H.; Davies, Teri E.; Mur, Luis A. J. (2007-04)

In addition to the role of plant cell death in determining fundamental plant characteristics such as leaf morphology, death of plant cells can also have a major impact on the environment. Recently it has been demonstrated ...
Protein kinases in plants in the transduction of abiotic and biotic signals

Novikova, G. V.; Smith, Aileen R.; Mur, Luis A. J.; Hall, Michael A.; Moshkov, I. E. (2002-01)

The effects of extrinsic and intrinsic factors upon signaling pathways involving protein kinases are reviewed with particular reference to monomeric GTP-binding proteins and MAP kinases. The possible roles of feedback ...
Salicylate accumulation inhibits growth at chilling temperature in Arabidopsis

Scott, Ian M.; Clarke, Shannon M.; Wood, Jacqueline E.; Mur, Luis A. J. (2004-06-01)

The growth of Arabidopsis plants in chilling conditions could be related to their levels of salicylic acid (SA). Plants with the SA hydroxylase NahG transgene grew at similar rates to Col-0 wild types at 23°C, and growth ...

Now showing items 21-40 of 43

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