第1131回生物科学セミナー

Scaling from leaf cells and tissues to water use, growth, drought tolerance and climate responses: new theory and practices

Lawren Sack 教授(University of California, Los Angeles)

2017年03月08日(水)    16:50-18:35  理学部2号館 講堂   

Given ongoing climate change, there is increasing interest worldwide in relating traits measured on cells and tissues to plant species and ecosystem productivity, resource use and distributions. However, typical "trait-based" approaches using standard traits such as specific leaf area and wood density have met with limited success. Here I describe new approaches in theory, nano-scale visualization, experiments and modeling toward clarifying leaf structure, development, anatomy and water transport. These approaches in combination can resolves mechanisms underlying key plant functions such as plant water use and productivity as well as drought tolerance, and provide inroads toward explaining and predicting species' distributions and responses to climate change.

参考文献
Scoffoni et al. 2016. Hydraulic basis for the evolution of photosynthetic productivity. nature plants 2, article number: 16072.
Sack, L. et al. 2013. How do leaf veins influence the worldwide leaf economic spectrum? Review and synthesis. Journal of Experimental Botany 64: 4053-4080.
Sack, L & Scoffoni, C. 2013. Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future. New Phytologist 198: 983-1000.
Sack. L. et al., 2012. Developmentally based scaling of leaf venation architecture explains global ecological patterns. nature communications 3, Article number: 837.