Plant Hormones: Physiology, Biochemistry and Molecular Biology, Volume 2Peter Davies Plant hormones play a crucial role in controlling the way in which plants growand develop. Whilemetabolism providesthepowerand buildingblocks for plant life, it is the hormones that regulate the speed of growth of the individual parts and integrate these parts to produce the form that we recognize as a plant. In addition, theyplayacontrolling role inthe processes of reproduction. This book is a description ofthese natural chemicals: how they are synthesizedand metabolized; howthey work; whatwe knowoftheir molecular biology; how we measure them; and a description ofsome ofthe roles they play in regulating plant growth and development. Emphasis has also been placed on the new findings on plant hormones deriving from the expanding use ofmolecular biology as a tool to understand these fascinating regulatory molecules. Even at the present time, when the role of genes in regulating all aspects of growth and development is considered of prime importance, it is still clear that the path of development is nonetheless very much under hormonal control, either via changes in hormone levels in response to changes in gene transcription, or with the hormones themselves as regulators ofgene transcription. This is not a conference proceedings, but a selected collection ofnewly written, integrated, illustrated reviews describing our knowledge of plant hormones, and the experimental work that is the foundation of this knowledge. |
Contents
Hormones as regulators of water balance | 7 |
Concentration sensitivity and transport | 13 |
B HORMONE SYNTHESIS AND METABOLISM | 58 |
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a-amylase abscisic acid Acad ACC oxidase ACC synthase accumulation activity Agrobacterium tumefaciens aleurone antibodies antisense Arabidopsis auxin transport auxin-binding proteins auxin-induced auxin-responsive barley binding protein Biochem Biol biosynthesis Brassinosteroids CaČ Ca2+ calcium cDNA cell wall cloned coleoptiles compounds concentration conjugates COOH crown gall cytokinin effects elongation encoding endogenous endosperm enzyme ethylene ethylene biosynthesis ethylene production flowering gene expression genetic germination gibberellin gravitropic Growth Regulation H CO₂H hydrolysis hypocotyl identified increase indole-3-acetic acid induced inhibition inhibitors internode involved isolated jasmonate leaf levels maize metabolism molecular mRNA mutants Natl occur oxidation pathway physiological Plant Cell plant growth plant hormones Plant Physiol plasma membrane plasmid polyamines Proc promoter protein protoplasts purified receptor response ripening role root savastanoi seedlings seeds senescence sensitivity sequence shoots shown soybean specific stem studies synthesis T-DNA tobacco transcription transgenic plants tRNA tryptophan tumors vitro wounding