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Dr Dana MacGregor

Dr Dana MacGregor

Postdoctoral researcher

 Not Known

 Geoffrey Pope 

 

Geoffrey Pope Building, University of Exeter , Stocker Road, Exeter, EX4 4QD, UK

Dana’s scientific career has been aimed at understanding how plants can perceive what is happening in their environment and alter their biology at the molecular level to adapt both architecture and life-style to thrive in the environment in which the seed has decided to germinate.

Throughout a plant’s life cycle, a plant must sense and respond to the environmental cues it is receiving. Dana is interested in environmental-input steps throughout the whole life cycle. For instance, the mother plant passes along information about the temperature at which the seeds are maturing to ensure the correct level of seed dormancy is set at seed maturity (MacGregor et al., in preparation). During early seedling development, osmotic stress is sensed by roots and through an abscisic acid-dependent pathway the permeability of the new leaves is altered (MacGregor et al., 2008). Additionally, sugar levels, a readout of photosynthetic activity, are essential for determining the size of the root system and its architecture (MacGregor et al., 2008). Day to day variations in light and temperature can not only alter photosynthetic capability, but they are also key for entraining the circadian clock ensuring the clock’s output activities are correctly timed (Gould et al., 2013). The clock itself is essential for coordinating the correct levels of gene expression in response to and preparation for cold stress (Keily & MacGregor et al., 2013). Correct timing of the circadian clock also requires correct mRNA export, therefore the most basic of molecular activities (MacGregor et al., 2013).  Therefore, the cycle of seed to seed, plant to plant, is dependent on how well 1) the seed coordinated its germination with optimal environmental conditions, 2) the plant responded to the availability of water, light, and temperature to create the best architecture for its environment, and 3) the mother plant was able to pass along relevant information to its seed so it would have the correct level of dormancy. To be successful therefore, plants must constantly sense and respond to their environment so they have the optimal transcriptome for whatever challenge they are faced with. It is this cycle that Dana is interested in understanding further.

Qualifications

Associate of the Higher Education Academy (University of Exeter and H.E.A.) -- January 2013

Ph.D. in Molecular Genetics and Cellular Biology (University of Chicago, Chicago, IL, USA) -- June 2008

B.S. with honours in Biochemistry and Molecular Biology (Dickinson College, Carlisle, PA, USA),  -- June 2002

Career

2013 - 2016
Named Researcher, Control of seed coat plasticity for seed quality in industry
BBSRC Industrial Partnership Award (IPA)
University of Exeter, Steven Penfield

See 1 minute interview for #SpeedUpdating at www.exeter.ac.uk/research/speedupdating/

2008 - 2013
PDRA, The Regulation of Biological Signalling by Temperature (ROBuST),
BBSRC SABR Grant
University of Exeter, College of Life and Environmental Sciences (2011 - 2013), Steven Penfield, Karen Halliday et al.
University of York, Centre for Novel Agricultural Products (2008 - 2011)

This BBSRC SABR grant incorporates research from groups based at the Universities of Edinburgh, Liverpool and Warwick. For more information visit the ROBuST website or watch the video below.

 

2002 - 2008
Ph.D. Molecular Genetics and Cellular Biology

University of Chicago, Jocelyn Malamy
The roles of LRD2, sugars, and the hormones ABA and Auxin in regulating Arabidopsis lateral root formation, University of Chicago, Supervisor Dr. Jocelyn E. Malamy

1998 - 2002
B.S. Biochemistry and Molecular Biology
Dickinson College, Carlisle, PA, USA
Graduated summa cum laude with Honours
Member of Alpha Lambda Delta and Phi Beta Kappa
Junior Year Abroad at University of East Anglia, Norwich , UK

Links

Research

Research grants

  • 2013 BBSRC
    Controlling seed coat plasticity for seed quality in industry

Links


Key publications | Publications by category | Publications by year

Publications by category


Journal articles

MacGregor D, Gould P, Foreman J, Griffiths J, Bird S, Page R, Stewart K, Steel G, Young J, Paszkiewicz K, et al (2013). HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES1 is Required for Circadian Periodicity through the Promotion of Nucleo-Cytoplasmic mRNA Export in Arabidopsis. The Plant Cell Online Author URL.  Full text.
Keily J, MacGregor D, Smith R, Millar A, Halliday K, Penfield S (2013). Model selection reveals control of cold signalling by evening-phased components of the plant circadian clock. Plant J, 76(2), 247-257. Abstract.  Author URL.  Full text.
Gould PD, Ugarte N, Domijan M, Costa M, Foreman J, Macgregor D, Rose K, Griffiths J, Millar AJ, Finkenst├Ądt B, et al (2013). Network balance via CRY signalling controls the Arabidopsis circadian clock over ambient temperatures. Mol Syst Biol, 9 Abstract.  Author URL.  Full text.
MacGregor D, Deak KI, Ingram PA, Malamy JE (2008). Root System Architecture in Arabidopsis Grown in Culture is Regulated by Sucrose Uptake in the Aerial Tissues. Plant Cell, 10(20), 2643-2660. Abstract.

Chapters

Penfield S, MacGregor D (2014). Temperature and Plant Development. In Franklin K, Wigge P (Eds.) Temperature and Plant Development, John Wiley & Sons. Abstract.  Author URL.
Penfield S, Kendall S, MacGregor D (2011). Temperature Adaptation in a Changing Climate. In Tanino KK, Storey KB (Eds.) Temperature Adaptation in a Changing Climate, C a B Intl. Abstract.

Publications by year


2014

Penfield S, MacGregor D (2014). Temperature and Plant Development. In Franklin K, Wigge P (Eds.) Temperature and Plant Development, John Wiley & Sons. Abstract.  Author URL.

2013

MacGregor D, Gould P, Foreman J, Griffiths J, Bird S, Page R, Stewart K, Steel G, Young J, Paszkiewicz K, et al (2013). HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES1 is Required for Circadian Periodicity through the Promotion of Nucleo-Cytoplasmic mRNA Export in Arabidopsis. The Plant Cell Online Author URL.  Full text.
Keily J, MacGregor D, Smith R, Millar A, Halliday K, Penfield S (2013). Model selection reveals control of cold signalling by evening-phased components of the plant circadian clock. Plant J, 76(2), 247-257. Abstract.  Author URL.  Full text.
Gould PD, Ugarte N, Domijan M, Costa M, Foreman J, Macgregor D, Rose K, Griffiths J, Millar AJ, Finkenst├Ądt B, et al (2013). Network balance via CRY signalling controls the Arabidopsis circadian clock over ambient temperatures. Mol Syst Biol, 9 Abstract.  Author URL.  Full text.

2011

Penfield S, Kendall S, MacGregor D (2011). Temperature Adaptation in a Changing Climate. In Tanino KK, Storey KB (Eds.) Temperature Adaptation in a Changing Climate, C a B Intl. Abstract.

2008

MacGregor D, Deak KI, Ingram PA, Malamy JE (2008). Root System Architecture in Arabidopsis Grown in Culture is Regulated by Sucrose Uptake in the Aerial Tissues. Plant Cell, 10(20), 2643-2660. Abstract.
MacGregor D (2008). THE ROLES OF. LRD2, SUGARS, AND. THE HORMONES ABA & AUXIN. IN REGULATING ARABIDOPSIS LATERAL ROOT FORMATION.

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In addition to supervising, undergraduates, master’s students, PhD candidates and technicians in the laboratory, I have held several tutor, teaching assistant, and laboratory demonstrator roles throughout my career. Each of the positions presented me with very different teaching opportunities and I thoroughly enjoyed learning from each of them. Teaching is incredibly rewarding for me and its rewards bolster my love of science.

I do not believe in teaching as ‘knowledge transfer’, but instead, feel it should be about sparking an interest in the subject so that the student takes ownership of the learning process. Every time I am in front of an audience, I try to get them to think about why I am presenting them with that information, not just because it may be on the test, but to impress the information’s importance, relevance, usefulness, or just to get them to think about how something works. I don’t believe a University Education should be about passing courses, but rather should be an opportunity for people to learn the things that will help them to succeed. I believe that the best way for students to learn the intricate details of their chosen field, is by exciting them to the topic so that they seek to understand the subject better. Encouraging an audience to engage with the topic at a deeper level not only helps them to retain that information, and be able to apply it later, but also habituates them to evaluate other information given to them.

Alumni

  • Susannah Bird, PhD Research Technician
  • Rhiannon Page, PhD Research Technician
  • Mylene Ruh Undergraduate from University Pierre and Marie CURIE
  • Sebastian Shaw Undergraduate Project

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