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Olwen Grace   Dr.  Institute, Department or Faculty Head 
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Olwen Grace published an article in May 2018.
Top co-authors See all
Pieter C. Dorrestein

250 shared publications

University of California, San Diego

Nina Rønsted

83 shared publications

Natural History Museum of Denmark, University of Copenhagen, Denmark

Marnix H Medema

69 shared publications

Bioinformatics Group, Wageningen University, Wageningen, Netherlands

Gideon F. Smith

63 shared publications

Department of Botany, P.O. Box 77000, Nelson Mandela University, Port Elizabeth, 6031 South Africa; Centre for Functional Ecology, Departamento de Ciências da Vida, Calçada Martim de Freitas, Universidade de Coimbra, 3001-455 Coimbra, Portugal;

Estrela Figueiredo

59 shared publications

Department of Botany, P.O. Box 77000, Nelson Mandela University, Port Elizabeth, 6031 South Africa; Centre for Functional Ecology, Departamento de Ciências da Vida, Universidade de Coimbra, 3001-455 Coimbra, Portugal

16
Publications
9
Reads
1
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45
Citations
Publication Record
Distribution of Articles published per year 
(2002 - 2018)
Total number of journals
published in
 
9
 
Publications See all
PREPRINT-CONTENT 9 Reads 0 Citations Did a plant-herbivore arms race drive chemical diversity in Euphorbia? Madeleine Ernst, Louis-Felix Nothias-Scaglia, Justin Van Der... Published: 15 May 2018
Evolutionary Biology, doi: 10.1101/323014
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The genus Euphorbia is among the most diverse and species-rich plant genera on Earth, exhibiting a near-cosmopolitan distribution and extraordinary chemical diversity, especially across highly toxic macro- and polycyclic diterpenoids. However, very little is known about drivers and evolutionary origins of chemical diversity within Euphorbia. Here, we investigate 43 Euphorbia species to understand how geographic separation over evolutionary time has impacted chemical differentiation. We show that the structurally highly diverse Euphorbia diterpenoids are significantly reduced in species native to the Americas, compared to the Eurasian and African continents, where the genus originated. The localization of these compounds to young stems and roots suggest ecological relevance in herbivory defense and immunomodulatory defense mechanisms match diterpenoid levels, indicating chemoevolutionary adaptation to reduced herbivory pressure.
Article 0 Reads 2 Citations The uses of Kenyan aloes: an analysis of implications for names, distribution and conservation Charlotte S. Bjorå, Emily Wabuyele, Olwen M. Grace, Inger No... Published: 25 November 2015
Journal of Ethnobiology and Ethnomedicine, doi: 10.1186/s13002-015-0060-0
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The genus Aloe is renowned for its medicinal and cosmetic properties and long history of use. Sixty-three Aloe species occur in Kenya, of which around 50 % are endemic. Several species of aloes are threatened with extinction and knowledge about their use is of major importance for sound conservation strategies. The main aims of this study were to assess the biocultural value of Aloe in Kenya by documenting local uses of aloes and evaluating how the vernacular names reflect the relative importance in different ethnic groups.
Article 0 Reads 10 Citations Evolutionary history and leaf succulence as explanations for medicinal use in aloes and the global popularity of Aloe ve... Olwen M Grace, Sven Buerki, Matthew Re Symonds, Félix Forest... Published: 01 January 2015
BMC Evolutionary Biology, doi: 10.1186/s12862-015-0291-7
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Aloe vera supports a substantial global trade yet its wild origins, and explanations for its popularity over 500 related Aloe species in one of the world’s largest succulent groups, have remained uncertain. We developed an explicit phylogenetic framework to explore links between the rich traditions of medicinal use and leaf succulence in aloes.
Article 0 Reads 0 Citations Reinstatement of Aloe barbertoniae Pole-Evans (Asphodelaceae: Alooideae) from northeastern South Africa Ronell R. Klopper, Gideon F. Smith, Olwen M. Grace, Neil R. ... Published: 20 November 2014
Bradleya, doi: 10.25223/brad.n32.2014.a21
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Article 0 Reads 6 Citations Monosaccharide analysis of succulent leaf tissue in Aloe Olwen M. Grace, Amra Dzajic, Anna K. Jäger, Nils T. Nyberg, ... Published: 01 September 2013
Phytochemistry, doi: 10.1016/j.phytochem.2013.03.015
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Article 0 Reads 0 Citations Reinstatement of Aloe graciliflora Groenew. (Asphodelaceae: Alooideae), a maculate aloe from north-east South Africa Ronell R. Klopper, Olwen M. Grace, Gideon F. Smith, Estrela ... Published: 31 December 2011
Bradleya, doi: 10.25223/brad.n29.2011.a15
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