A5064735255- Plant tissue culture and regeneration
- Plant Stress Responses and Tolerance
- Plant Molecular Biology Research
- Plant Reproductive Biology
- Photosynthetic Processes and Mechanisms
- Legume Nitrogen Fixing Symbiosis
- Plant Disease Resistance and Genetics
- Potato Plant Research
- Cocoa and Sweet Potato Agronomy
- Allelopathy and phytotoxic interactions
- Plant Physiology and Cultivation Studies
- Plant Pathogens and Resistance
- Metabolomics and Mass Spectrometry Studies
- Phytochemical compounds biological activities
- Light effects on plants
- Plant Gene Expression Analysis
- Polysaccharides and Plant Cell Walls
- Plant Parasitism and Resistance
- Injury Epidemiology and Prevention
- Genetic and Environmental Crop Studies
- Leaf Properties and Growth Measurement
- Plant biochemistry and biosynthesis
- Analytical Chemistry and Chromatography
- Plant responses to elevated CO2
- Plant nutrient uptake and metabolism
Aberystwyth University
2003-2017
Institute of Biological, Environmental and Rural Sciences
2009-2017
University of Toronto
1993-2016
McMaster University
2016
Lund University
2012
Cambridge University Press
2010
New York University Press
2010
Rothamsted Research
2010
University of York
2005-2010
John Innes Centre
1978-2010
Plants adapt to environmental stresses through specific genetic responses. The molecular mechanisms associated with signal transduction, leading changes in gene expression early the stress response, are largely unknown. It is clear, however, that acclimatory responses sensitive redox state of cell. Of many components which contribute balance cell, two factors have been shown be crucial mediating Thiol/disulphide exchange reactions, particularly involving glutathione pool and generation...
Abstract Spraying mustard (Sinapis alba L.) seedlings with salicylic acid (SA) solutions between 10 and 500 μm significantly improved their tolerance to a subsequent heat shock at 55°C for 1.5 h. The effects of SA were concentration dependent, higher concentrations failing induce thermotolerance. time course thermotolerance induced by 100 was similar that obtained acclimated 45°C 1 We examined the hypothesis involved H2O2. Heat caused significant increase in endogenous H2O2 reduced catalase...
Abstract Heat-acclimation or salicylic acid (SA) treatments were previously shown to induce thermotolerance in mustard (Sinapis alba L.) seedlings from 1.5 4 h after treatment. In the present study we investigated changes endogenous SA and antioxidants relation induced thermotolerance. Thirty minutes into a 1-h heat-acclimation treatment glucosylated had increased 5.5-fold then declined during next 6 h. Increases free smaller (2-fold) but significant. Changes showed following similarities...
Summary Salicylic acid (SA) is reported to protect plants from heat shock (HS), but insufficient known about its role in thermotolerance or how this relates SA signaling pathogen resistance. We tested and expression of pathogenesis‐related (PR) HS proteins (HSPs) Arabidopsis thaliana genotypes with modified signaling: the hydroxylase NahG transgene, n onexpresser PR ( npr1 ) mutant, c onstitutive expressers cpr1 cpr5 mutants. At all growth stages seeds 3‐week‐old plants, we found evidence...
Abstract The growth of Arabidopsis plants in chilling conditions could be related to their levels salicylic acid (SA). Plants with the SA hydroxylase NahG transgene grew at similar rates Col-0 wild types 23°C, and both genotypes was slowed by transfer 5°C. However, 5°C, displayed relative about one-third greater than Col-0, so that 2 months were typically 2.7-fold larger. This resulted primarily from cell expansion rosette leaves. Specific leaf areas area ratios remained genotypes. Net...
Vertebrate hearts depend on highly specialized cardiomyocytes that form the cardiac conduction system (CCS) to coordinate chamber contraction and drive blood efficiently unidirectionally throughout organism. Defects in this wiring can lead syncope sudden death. Thus, a greater understanding of development may help prevent these devastating clinical outcomes. Utilizing cardiac-specific fluorescent calcium indicator zebrafish transgenic line, Tg(cmlc2:gCaMP)s878, allows for vivo optical...
We describe a novel shape constraint technique which is incorporated into multi-stage algorithm to automatically locate features o n the human face. The method coarse-to-fine. First face detector applie d find approximate scale and location of in image. Then individual feature detectors are applied combined using known as Pairwise Reinforcement Feature Responses (PRFR). points predicted by this then refined version Active Appe arance Model (AAM) search, tuned edge corner features. final...
Potato microplants propagated as nodal explants were subjected to heat treatments in vitro similar those employed the thermotherapy step of virus eradication procedures. Low concentrations (10−6–10−5 M) acetylsalicylic acid (ASA) culture medium improved (by 3.7-fold) tolerance a 5-week hightemperature (35°C) treatment. Furthermore, tissues subcultured on ASA-free following several weeks growth ASA more thermotolerant 3.8-fold) 7 week 35°C treatment, and 38-fold) 15h 42°C heat-shock. Stems...
Lucie Rychetnik, Michael Frommer. National Public Health Partnership*, Melbourne, June 2002 (free as pdf file from www.nphp.gov.au). The work leading to this publication arose out of discussion in the Australian committee for allocating health related research funds†. The considered difficulties that can arise when established methods evaluating evidence based medicine are used evaluate on public interventions. When workshops experts these issues they concluded appraisal provide a useful...
Single senescent leaves attached to decapitated shoots of Nicotiana rustica L. regreened, especially when treated with cytokinin. Regreening caused an increase in leaf thickness, due cell expansion. Senescent plastids (gerontoplasts) were smaller than green chloroplasts, degenerated membrane systems and stroma, larger plastoglobuli. At advanced senescence, micrographs showed disintegrating gerontoplasts, reduced numbers counted, regreening became variable. The redevelopment grana stroma was...
Piliostigma thonningii, Ocimum gratissimum, Nauclea latifolia and Alstonia boonei are used in Nigerian traditional medicines against gastrointestinal helminths of animals man. Proanthocyanidins were detected Nauclea, but not or Ocimum. Extracts these plants killed 50% brine shrimp nauplii at <10 ppm (Nauclea), 100 (Piliostigma) <1000 (Ocimum Alstonia), the LD50 being similar to anthelmintic drug piperazine. also toxic parasitic nematode Haemonchus infective L3 stage. Nematode...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGas chromatographic columns with adjustable separation characteristicsDavid R. Deans and Ian. ScottCite this: Anal. Chem. 1973, 45, 7, 1137–1141Publication Date (Print):June 1, 1973Publication History Published online1 May 2002Published inissue 1 June 1973https://pubs.acs.org/doi/10.1021/ac60329a020https://doi.org/10.1021/ac60329a020research-articleACS PublicationsRequest reuse permissionsArticle Views103Altmetric-Citations51LEARN ABOUT THESE...
A variety of plant hormone response mutants has now been described, and is surveyed in this article. In addition to hormone‐insensitive mutant phenotypes with defects hormone‐related features, there exist apparently constitutive for the gibberellin responses, also a hyper‐responsive gibberellin. Although still little biochemical evidence on nature these mutants, emerging picture their genetic dominance relationships given rise tentative suggestions involvement represser functions hormonal...