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Plant Metabolic Regulation Lab
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The lab explores how conifers tolerate environmental stress through the mechanisms of photosynthesis.
AboutAbout the lab
Exploring how conifers regulate photosynthesis
The Plant Metabolic Regulation Lab studies the mechanisms by which conifers withstand environmental stress, from the perspective of photosynthetic regulation.
Conifers dominate the harsh-climate regions of the mid- to high latitudes of the Northern Hemisphere, and they have various mechanisms for adapting to cold, drought, and other stresses.
Regulation of photosynthesis is especially important: without it, photosynthesis suffers light-induced damage under environmental stress.
Based on information obtained from photosynthesis research, the lab is trying to create improved trees.
Key terms
- Mehler reaction
- A reaction in which oxygen is reduced downstream of Photosystem I during drought or cold, when NADP+ is in short supply
- Photosystem I
- The part of the photosynthetic electron transport chain that receives electrons flowing from Photosystem II
- Photoinhibition
- Impairment of photosynthetic function caused by damage from light
ResearchResearch themes
The Plant Metabolic Regulation Lab studies environmental stress tolerance in conifers from the perspective of the mechanisms that regulate photosynthesis. Its research themes include the mechanisms of environmental stress tolerance in conifers, regulation of the Mehler reaction, regulation of cyclic electron flow around Photosystem I, and the development of methods for functional analysis of photosynthesis.
*Illustrative imageThe Mehler Reaction in Conifers
When NADP+ runs short under drought or cold, oxygen is reduced downstream of Photosystem I (the Mehler reaction). Conifers have about 10 times the capacity for this reaction compared with angiosperms, which lets them avoid photoinhibition of photosynthesis.
*Illustrative imageImproving Trees Using Knowledge of Photosynthesis
Based on information obtained from photosynthesis research, the lab is trying to create improved trees. Its stated goals are strengthening environmental stress tolerance and enhancing photosynthetic capacity.
MembersFaculty
- Assistant ProfessorMichito Tsuyama
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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: “Japanese Cedar Cryptomeria japonica Tree 025 bark” Cossey25 / CC BY-SA 4.0 (cropped)
- The Mehler Reaction in Conifers: “Blue Spruce needles 114” BogTar201213 / CC BY-SA 4.0 (cropped)
- Improving Trees Using Knowledge of Photosynthesis: “Red Pine commercial seedling field Eastern Ontario 2011 07” ImagePerson / CC BY-SA 4.0 (cropped)
- Related lab (造林学): “Beech Forest (AU), Great Otway National Park” Dietmar Rabich / CC BY-SA 4.0 (cropped)
- Related lab (園芸学): “Fruit Orchard - geograph.org.uk - 2349156” Oast House Archive / CC BY-SA 2.0 (cropped)
- Related lab (木質資源理学): “Live leaf cells of the moss plant. మాస్ మొక్క పత్రం లోని హరిత రేణువుల తో కూడిన కణాలు” Krishna satya 333 / CC BY-SA 4.0 (cropped)
- Related lab (農業薬剤化学): “Schlenk flask 500mL” Ichwarsnur / CC BY-SA 4.0 (cropped)
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