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New Perspectives on the Biology of Nectaries and Nectars
The number of currently known, described and accepted plant species is ca 374,000, of which approximately 295,00 (79%) are angiosperms. Almost 90% of this huge number of flowering plants is pollinated by animals (mostly insects) via nectar-mediated interactions. Notably, three-fourths of the leading global crop plants produce nectar and are animal pollinated, which is estimated to account for one-third of human food resources. Nectar can also be produced on tissues outside of flowers, by so-called extrafloral nectaries, and commonly mediate interactions with ‘body-guard’ ants and other pugnacious insects that defend the plant from herbivores. Extrafloral nectar is present in almost 4,000...
In Vitro Culture of Trees
Woody plants provide many challenges to the tissue culturist. Although there are many excellent tissue culture books and manuals available, these are generally strongly biased towards herbacious crops. Consequently, they often do not pay sufficient attention to the problems that specifically apply to in vitro culture of tree species. Culture of the latter often poses problems which are either absent or of lesser significance when culturing herbacious species. When trees in the field are used as explant source, the problems can be especially severe. For example, the physiological condition of the explants is difficult to control because of variation in weather and biotic factors. Furthermore,...
The Shaping of Life
Biological development, how organisms acquire their form, is one of the great frontiers in science. While a vast knowledge of the molecules involved in development has been gained in recent decades, big questions remain on the molecular organization and physics that shape cells, tissues and organisms. Physical scientists and biologists traditionally have very different backgrounds and perspectives, yet some of the fundamental questions in developmental biology will only be answered by combining expertise from a range of disciplines. This book is a personal account by Professor Lionel Harrison of an interdisciplinary approach to studying biological pattern formation. It articulates the power of studying dynamics in development: that to understand how an organism is made we must not only know the structure of its molecules; we must also understand how they interact and how fast they do so.
Reproductive Biology of Plants
Reproductive biology is the basis of species improvement and a thorough understanding of this is needed for plant improvement, whether by conventional or biotechnological methods. This book presents an up to date and comprehensive description of reproduction in lower plants, gymnosperms and higher plants. It covers general plant biology, pollinatio
Introducing Architectural Theory
Building on the success of the first edition, an engaging and reader-friendly work on complex ideas, Introducing Architectural Theory: Expanding the Disciplinary Debate, broadens the range of themes, voices, and geographies represented to provide a more comprehensive and contemporary theory book. This book presents major discourses in architectural theory and design in a debate-like format, integrating a series of edited texts across architectural history with context and newly written commentaries by the authors. This new edition has been fully revised, updated, and expanded to include long-standing debates, such as simplicity vs. complexity or the relationship between form and function, as...
Wisdom Engaged
"I listened to my mum, my dad, my gramma, that is why I am still here. That is how you stay alive." —Mida Donnessey Wisdom Engaged demonstrates how traditional knowledge, Indigenous approaches to healing, and the insights of Western bio-medicine can complement each other when all voices are heard in a collaborative effort to address changes to Indigenous communities’ well-being. In this collection, voices of Elders, healers, physicians, and scholars are gathered in an attempt to find viable ways to move forward while facing new challenges. Bringing these varied voices together provides a critical conversation about the nature of medicine; a demonstration of ethical commitment; and an exa...
Wild Witchcraft
"Learn how to cultivate your own magical garden, harness the power of herbalism, and better connect with nature through practical and sustainable tips from an experienced Appalachian witch forager"--
Saving Farmland
Saving Farmland shows how sustainability, ecosystems and biodiversity transcend the paradox of man-made losses. Chambers details how to overcome obstacles, choose models, identify vital farmland, build community and raise funds. Stories of commonly shared land, international trusts, regained farmland and several real heroes provide inspiration that a future is possible where local farming and sustainable development will deliver good eating - forever.--COVER.
