Theoretical and Experimental Plant Physiology considers for publication research articles, short communications, reviews, opinion articles and letters to the editor. The journal does not publish articles in taxonomy, anatomy, systematics and ecology unless they have a physiological approach related to the following sections:             • Biochemical Processes: primary and secondary metabolism, and biochemistry             • Photobiology and Photosynthesis Processes             • Cell Biology             • Genes and Development             • Plant Molecular Biology             • Signaling and Response             • Plant Nutrition             • Growth and Differentiation: seed physiology, hormonal physiology and photomorphogenesis             • Post-Harvest Physiology             • Ecophysiology/Crop Physiology and Stress Physiology             • Applied Plant Ecology             • Plant-Microbe and Plant-Insect Interactions             • Instrumentation in Plant Physiology             • Education in Plant Physiology Contributions should present new and significant findings. Simple experiments on applications of existing methods or methodological and technical procedures will not be considered for publication as well as data from dose-response experiments without physiological discussion. Manuscripts assuring known aspects without coming up to a suitable understanding of the physiological mechanisms involved will be returned as a general rule without review.