Science
Author: John Michels
Publisher:
Published: 1927
Total Pages: 904
ISBN-13:
DOWNLOAD EBOOKVols. for 1911-13 contain the Proceedings of the Helminothological Society of Washington, ISSN 0018-0120, 1st-15th meeting.
Posts
Plants in cosmetics – Les plantes dans les cosmétiques – volume 2
Author: Franco Patri
Publisher: Council of Europe
Published: 2001-09-01
Total Pages: 200
ISBN-13: 9287184917
DOWNLOAD EBOOKThis study contains 44 datasheets on plants and plant preparations which have been evaluated by the Council of Europe's Committee of Experts on Cosmetic Products. An assessment of the safety of these plants and plant preparations is also included.
Plantes Dans Les Cosmétiques
Author: Robert Anton
Publisher: Council of Europe
Published: 2001
Total Pages: 200
ISBN-13:
DOWNLOAD EBOOKThis study contains 44 datasheets on plants and plant preparations that have been evaluated by the Council of Europe's Committee of Experts on Cosmetic Products. An assessment of the safety of these plants and plant preparations is also included. The entries are classified into three categories: plants which do not present a health hazard; those for which the Committee needs further information; and those which may pose a health risk and are not recommended for use in cosmetic products. This edition complements Volume One which contains 71 datasheets.
Fundamental, Ecological and Agricultural Aspects of Nitrogen Metabolism in Higher Plants
Author: J.T. Lambers
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 486
ISBN-13: 9400943563
DOWNLOAD EBOOKRinie Hofstra has been a member of the Department of Plant Physiology, University of Groningen, the Netherlands, for 24 years. The nearer we came to 31 March 1985, her 65th birthday, the more we all realized how we would miss her - not only scientifically, but also socially. She left her mark on both research and teaching, always with an open mind and willing to change. After her PhD Thesis on 'Nitrogen Metabolism in Tomato Plants' she first continued working in that field, but soon started a joint project with the Department of Plant Ecology on hemiparasites. She then became involved in carbon metabolism, which resulted in her giving a Biotrop Course on C /C metabolism in 3 4 Indonesia. Her own research group, originally working on 'Nitrogen Metabolism', soon embraced 'Energy and Nitrogen Metabolism', as the research on respiration became more and more important. In running her group she showed all sides of her person. She used to stimulate and encourage everyone around her and to integrate the various lines of research. At the same time she always had an open mind for the opinion of all members of her group. And together they regularly criticized and evaluated the various projects and decided how to continue.
Soil Chemistry
Author: Daniel G. Strawn
Publisher: John Wiley & Sons
Published: 2020-01-28
Total Pages: 388
ISBN-13: 1119515181
DOWNLOAD EBOOKProvides comprehensive coverage of the chemical interactions among organic and inorganic solids, air, water, microorganisms, and the plant roots in soil This book focuses on the species and reaction processes of chemicals in soils, with applications to environmental and agricultural issues. Topics range from discussion of fundamental chemical processes to review of properties and reactions of chemicals in the environment. This new edition contains more examples, more illustrations, more details of calculations, and reorganized material within the chapters, including nearly 100 new equations and 51 new figures. Each section also ends with an important concepts overview as well as new questions for readers to answer. Starting with an introduction to the subject, Soil Chemistry, 5th Edition offers in-depth coverage of properties of elements and molecules; characteristics of chemicals in soils; soil water chemistry; redox reactions in soils; mineralogy and weathering processes in soils; and chemistry of soil clays. The book also provides chapters that examine production and chemistry of soil organic matter; surface properties of soil colloids; adsorption processes in soils; measuring and predicting sorption processes in soils; soil acidity; and salt-affected soils. Provides a basic description of important research and fundamental knowledge in the field of soil chemistry Contains more than 200 references provided in figure and table captions and at the end of the chapters Extensively revised with updated figures and tables Soil Chemistry, 5th Edition is an excellent text for senior-level soil chemistry students.
Plant-Rhizobia Symbiosis and Nitrogen Fixation in Legumes
Author:
Publisher: Frontiers Media SA
Published: 2024-04-29
Total Pages: 178
ISBN-13: 283254648X
DOWNLOAD EBOOKThe reciprocal exchange of chemical signals between legume and rhizobium leads to the establishment of Root Nodule Symbiosis (RNS). The discoveries of the Nodulation Factor (NF) and nod genes, along with the discoveries of the relevant genetic plant factors, have expanded our understanding of how legume-rhizobial interactions constitute a successful mutualistic symbiosis. Symbiotic nodule formation can be divided into the following molecular events: (i) the reciprocal exchange of signals; (ii) epidermal recognition of symbiotic partner and infection thread formation; (iii) nodule organogenesis; (iv) the establishment of a microaerophilic environment to provide nitrogenase the ideal condition to work; and, (v) modulation of immunity to host rhizobium inside the nodule cells. The number of nodules in a plant is maintained via a process of systemic signaling, known as ‘autoregulation of nodulation’ (AON), that acts as a negative signal to control nodule number in low nitrogen conditions and inhibit nodule initiation in an optimally nitrogen-fed plant. Over 200 plant genes have been discovered up to now and these discoveries have given us a broad understanding of RNS.
