Plant Tolerance Versus Climate Change                     Zhang WenSheng Center for agriculture resource research, Institu...
Humans activities → Climate change & global warming → Agricultural production & food security                             ...
Climate change and drought  March, 2010, Yunnan, China                 January 10, 2011, Source: Division of Climate Impoa...
Climate change: Drought may threaten much of globe within decades                                                         ...
Climate change and the increase of soil salinity • Another problem related to climate changes and global warming is the in...
Immobile lifestyle of plants     Tolerance & Resistance    OR   Death
Plants are exposed to a variety of abiotic stresses.           These stresses often occur in combination                  ...
Generic pathway for plant response to stress                                Huang et al. 2011, Mol Biol Rep
Transcriptional regulatory networks of abiotic stress signals and gene expression.               Shinozaki K , Yamaguchi-S...
Expression profiles of 7000 Arabidopsis genes under drought, coldand high-salinity stresses using full-length cDNA microar...
List of genes involved in different functional groups upregulated ordownregulated by drought, cold or high-salinity stress...
The feasibility of modification of a single trait significantly     improved the salinity tolerance of crop plant         ...
Zhang zhengbin’s research teamCloning and function analysis of drought or salt tolerance related genes in wheat:TaWRKY, Ta...
Genes used in the transformation of plants where authors claimed enhancement of salt tolerance, 1993-2011
The complexity of the natural                The complexity of the    stressful environment                 +      toleran...
Zhang Wen Sheng — Plant tolerance vs climate change
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Zhang Wen Sheng — Plant tolerance vs climate change

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The Chinese Academy of Agricultural Sciences (CAAS) and the International Food Policy Research Institute (IFPRI) jointly hosted the International Conference on Climate Change and Food Security (ICCCFS) November 6-8, 2011 in Beijing, China. This conference provided a forum for leading international scientists and young researchers to present their latest research findings, exchange their research ideas, and share their experiences in the field of climate change and food security. The event included technical sessions, poster sessions, and social events. The conference results and recommendations were presented at the global climate talks in Durban, South Africa during an official side event on December 1.

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Zhang Wen Sheng — Plant tolerance vs climate change

  1. 1. Plant Tolerance Versus Climate Change Zhang WenSheng Center for agriculture resource research, Institute of genetics and development biology, Chinese Academy of Science 2011.11.07
  2. 2. Humans activities → Climate change & global warming → Agricultural production & food security → • Although the earth’s climate has been slowly evolving over millions of years, rapid changes have occurred in recent times due to the activities of humans. It is now known that climate change and the continuing atmospheric CO2 rise will have increasingly profound effects on abiotic stress, plant growth and food security. Among the abiotic stress, drought and soil salinity are two major factors worldwide.
  3. 3. Climate change and drought March, 2010, Yunnan, China January 10, 2011, Source: Division of Climate Impoact Assessment/NCC/CMA In spring of 2010, severe drought hit Chinas south-west region and in some places it is the worst drought for a century. The drought impacted about 4.3million hectares of farmland and more than 51million people. Direct economic damage had reached more than 370 million Yuan. The 2010–2011 China drought impacted eight provinces in the northern part of China. It was the worst drought to hit our country in 60 years, and it affected most of wheat- producing regions in China.
  4. 4. Climate change: Drought may threaten much of globe within decades From NCAR
  5. 5. Climate change and the increase of soil salinity • Another problem related to climate changes and global warming is the increase of soil salinity. Sea level rise, the increasing frequency of dry periods in many regions of the world result in the consecutive occurrence of salinity on cultivated land. It was estimated that 20% of all cultivated land and 50% of irrigated land are affected by salt, greatly reducing the yield of crops. Climate change enhances the importance and urgency of plant tolerance research and tolerant crops breeding
  6. 6. Immobile lifestyle of plants Tolerance & Resistance OR Death
  7. 7. Plants are exposed to a variety of abiotic stresses. These stresses often occur in combination Vickers et al. 2009, Nature
  8. 8. Generic pathway for plant response to stress Huang et al. 2011, Mol Biol Rep
  9. 9. Transcriptional regulatory networks of abiotic stress signals and gene expression. Shinozaki K , Yamaguchi-Shinozaki K J. Exp. Bot. 2006;58:221-227© The Author [2006]. Published by Oxford University Press [on behalf of the Society for Experimental Biology]. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org
  10. 10. Expression profiles of 7000 Arabidopsis genes under drought, coldand high-salinity stresses using full-length cDNA microarray Up regulated Down regulated Motoaki Seki et al.2002, The Plant Journal
  11. 11. List of genes involved in different functional groups upregulated ordownregulated by drought, cold or high-salinity stress Motoaki Seki et al. 2002, The Plant Journal
  12. 12. The feasibility of modification of a single trait significantly improved the salinity tolerance of crop plant Apse et al. 1999, Science Zhang & Blumwald, 2001, NatureSalt treatment of wild-type plants and plants overexpressing AtNHX1 in the presence of 200 mM NaCl.
  13. 13. Zhang zhengbin’s research teamCloning and function analysis of drought or salt tolerance related genes in wheat:TaWRKY, TaAQP, TaCer, TaNADP-ME Wild type 35S::TaWRKY2 35S::WRKY19 CK150mM NaCl Transgenic of such transcription factors may be a good strategy for increasing plant tolerance
  14. 14. Genes used in the transformation of plants where authors claimed enhancement of salt tolerance, 1993-2011
  15. 15. The complexity of the natural The complexity of the stressful environment + tolerance mechanisms To make plants to rapidly acclimate the changing climate, and. achieve genetic increases in yield under abiotic stresses is a difficult challenge. • Comprehensive studies on key genes, quantitative trait loci and molecular networks that mediate plant responses to drought, salinity and other abiotic stresses are necessary to overcome this global challenge. The rapid expansion in knowledge on genomics and proteomics will accelerate the transgenic and molecular breeding approaches.

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