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Plant Physiology Lab (IRVING Louis John)
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The lab explores plant productivity by studying parasitic plants and how plants respond to nutrients.
AboutAbout the lab
Exploring how plants interact with their environment
Irving Lab studies how plants interact with their biotic and abiotic environments, using ecophysiological approaches.
Various stresses, such as drought, nutrient deficiency, disease, and parasites, limit plant productivity.
The research falls into three themes: plant parasitism, regulation of growth under resource-limited conditions, and seed germination and establishment.
Key terms
- Ecophysiology
- A field that studies the relationship between plants and their environment from the perspective of how plants function (physiology)
- Hemiparasitic plant
- A parasitic plant that photosynthesizes on its own but also obtains nutrients from other plants (hosts). Phtheirospermum japonicum is an example
- Holoparasitic plant
- A parasitic plant that does not photosynthesize. Orobanche minor is an example
- Isotope tracer
- A method in which a labeling isotope such as 13CO2 or 15N is supplied, and the amount of material exchanged between plants is measured
ResearchResearch themes
The lab aims to understand how environmental factors affect competition and productivity among plants. Its research page covers the relationship between parasitic plants and their hosts, and how plants respond when nutrients are supplied unevenly.
*Illustrative imageParasitic Plants and Their Hosts
Using the hemiparasitic plant Phtheirospermum japonicum and the holoparasitic plant Orobanche minor, the lab investigates how environmental factors affect the relationship between hosts and parasitic plants. It controls resource supply to each plant with root boxes and measures the flow of materials between plants with isotope tracers.
*Illustrative imageRoot Responses to Uneven Nutrient Supply
Under nutrient-poor conditions, some plant species grow more roots into nutrient-rich patches. The lab investigates the physiological reasons for differences in root growth and what this behavior means for competition between plants.
MembersFaculty
- Assistant ProfessorLouis J Irving
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Orobanche parasite plant in Umm Haratayn al-Gharbiyah, Syria” Hayan Alhasan / CC BY-SA 4.0 (cropped)
- Parasitic Plants and Their Hosts: “Pedicularis canadensis” 作者不詳 / Public domain (cropped)
- Root Responses to Uneven Nutrient Supply: “Soil turbation” Prof. Dr. Alessandro Samuel-Rosa / CC0 (cropped)
- Related lab (Plant Physiology Lab): “Plants in the Temple Greenhouse - geograph.org.uk - 3382269” David Lally / CC BY-SA 2.0 (cropped)
- Related lab (Marine Biology and Science Communication Lab): “Van de Graaff Lightning Generator Exhibit Museum of Science Boston” EgorovaSvetlana / CC BY-SA 4.0 (cropped)
- Related lab (Animal Physiology Lab (Casco-Robles)): “Cynops pyrrhogaster (under s4)” Alpsdake / CC BY-SA 4.0 (cropped)
- Related lab (Computational Structural Biology Lab): “Suramin ball-and-stick 2H9T” Fvasconcellos / Public domain (cropped)
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