Progress in Botany 69

1. Front Matter

   Pages i-xii

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2. Review

   1. Front Matter

      Pages 1-4

      PDF

   2. Ecophysiology: Migrations Between Different Levels of Scaling

      • Manfred Kluge

      Pages 5-34

3. Genetics

   1. Front Matter

      Pages 36-36

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   2. Variability of Recombination Rates in Higher Plants

      • Elisabeth Esch, Renate Horn

      Pages 37-60

   3. Functional Markers in Resistance Breeding

      • Christina Roenn Ingvardsen, Britt Schejbel, Thomas Lübberstedt

      Pages 61-87

   4. Extranuclear Inheritance: Plastid—Nuclear Cooperation in Photosystem I Assembly in Photosynthetic Eukaryotes

      • Mark Aurel Schöttler, Ralph Bock

      Pages 89-115

   5. Molecular Cell Biology: Are Reactive Oxygen Species Regulators of Leaf Senescence?

      • Ulrike Zentgraf, Vera Hemleben

      Pages 117-138

4. Physiology

   1. Front Matter

      Pages 140-140

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   2. Application of Laser-Assisted Microdissection for Tissue and Cell-Specific Analysis of RNA, Proteins, and Metabolites

      • Dirk Hölscher, Bernd Schneider

      Pages 141-167

   3. Plasma Membrane Redox Systems: Lipid Rafts and Protein Assemblies

      • Sabine Lüthje

      Pages 169-200

   4. Subcellular Sites of Environmental Sensing

      • Margarete Baier, Andrea Kandlbinder, Karl-Josef Dietz, Dortje Golldack

      Pages 201-230

   5. Oxidative Stress and Salt Tolerance in Plants

      • Cai-Hong Pang, Bao-Shan Wang

      Pages 231-245

   6. Crassulacean Acid Metabolism: a Cause or Consequence of Oxidative Stress in Planta?

      • Ewa Niewiadomska, Anne M. Borland

      Pages 247-266

   7. Cuscuta spp: “Parasitic Plants in the Spotlight of Plant Physiology, Economy and Ecology”

      • Markus Albert, Xana M. Belastegui-Macadam, Marc Bleischwitz, Ralf Kaldenhoff

      Pages 267-277

5. Ecology

   1. Front Matter

      Pages 280-280

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   2. Bayesian Data—Model Integration in Plant Physiological and Ecosystem Ecology

      • Kiona Ogle, Jarrett J. Barber

      Pages 281-311

   3. Quaternary Palaeoecology: Africa and its Surroundings

      • Burkhard Frenzel

      Pages 313-332

   4. The Application of Novel Optical Sensors (Optodes) in Experimental Plant Ecology

      • Dirk Gansert, Stephan Blossfeld

      Pages 333-358

   5. Indirect Defence — Recent Developments and Open Questions

      • Martin Heil

      Pages 359-396

With regard to global climate changes, one of our future challenges will be to develop crop plants that cope better with changing environmental conditions. Abiotic stress is estimated to be the primary cause of crop loss worldwide, with the potential to cause a reduction of more than 50% in the average yield of the main crops. Climatic extremes are known to trigger senescence processes. Many different agriculturally important traits are affected by senescence, like number and quality of seeds, timing of seed set, fruit ripening, etc. . Despite the importance of the sen- cence processes, our knowledge on the regulatory mechanisms of senescence is still poor. However, senescence is not a chaotic breakdown, but an orderly loss of normal cell functions. In contrast to aging processes which have a passive and non-regulated degenerative character (for a review, see Krupinska et al. 2003), senescence is an active and highly regulated process. Senescence can be initiated by exogenous and endogenous triggers. The most important endogenous factors inducing senescence are the age of the leaves and the age and developmental stage of the plant. The leaves of annual plants show a continuous decrease in their photosynthesis rate after full expansion (Batt and Woolhause 1975; Hensel et al. 1993). In fast-aging plants like Arabidopsis, photosynthetic capacity of the leaves decreases by 50% within 4–6 days of full leaf expansion under continuous light conditions (Hensel et al. 1993).

• Ecology
• Plant physiology
• Protein
• environment
• eukaryote
• physiology
• recombination
• systematics
• vegetation

• TU Darmstadt, Institut für Botanik FB Biologie (10), Darmstadt, Germany

  Ulrich Lüttge

• Fakultät für Biologie Lehrstuhl für Experimentelle Ökologie und Ökosystembiologie, Universität Bielefeld, Bielefeld, Germany

  Wolfram Beyschlag

• Botanical Gardens Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, Japan

  Jin Murata

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