Dictionary of Environmental Science and Engineering

Download or read book Dictionary of Environmental Science and Engineering written by James R. Pfafflin and published by Taylor & Francis. This book was released on 1996 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants, so predictable, stay where they are. And yet, like all living things, they also move: they grow, adapt, shed leaves and bark, spread roots and branches, snare pollinators, and reward cultivators. This book, the first to thoroughly explore the subject since Darwinâe(tm)s 1881 treatise on movements in plants, is a comprehensive, up-to-date account of the mechanisms and the adaptive values that move plants. Drawing on examples across the spectrum of plant familiesâe"including mosses, ferns, conifers, and flowering plantsâe"the author opens a window on how plants move: within cells, as individual cells, and via organs. Opening with an explanation of how cellular motors work and how cells manage to move organs, Dov Koller considers the movement of roots, tubers, rhizomes, and other plant parts underground, as well as the more familiar stems, leaves, and flowers. Throughout, Koller presents information at the subcellular and cellular levels, including the roles of receptors, signaling pathways, hormones, and physiological responses in motor function. He also discusses the adaptive significance of movements. His book exposes the workings of a world little understood and often overlooked, the world of restless plants and the movements by which they accomplish the necessary functions of their lives.