student. Authors Lincoln Taiz and Eduardo Zeiger have again collaborated with a stellar group of contributing plant biologists to produce a current and authoritative volume that incorporates all the latest findings. Changes for the new edition include: * A new chapter (Chapter 24) on Brassinosteroids * A completely rewritten Chapter 16 (Growth and Development) * Updates on recent developments in the light reactions and the biochemistry of photosynthesis, respiration, ion transport, and water relations * In the hormone chapters, new information about signaling pathways and regulatory mechanisms * Coverage of major breakthroughs on the control of flowering, including the latest findings on the identity of the long-sought-after photoperiodic floral stimulus, "florigen." As with the Third Edition, material typically considered prerequisite for plant physiology courses, as well as advanced material, is posted at the companion website. New material has been added here as well, including new Web topics and Web essays.

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