Journal ArticleDOI
Nitrogen-fixing bacteria associated with leguminous and non-leguminous plants
TLDR
A wide diversity of nitrogen-fixing bacterial species belonging to most phyla of the Bacteria domain have the capacity to colonize the rhizosphere and to interact with plants.Abstract:
Nitrogen is generally considered one of the major limiting nutrients in plant growth. The biological process responsible for reduction of molecular nitrogen into ammonia is referred to as nitrogen fixation. A wide diversity of nitrogen-fixing bacterial species belonging to most phyla of the Bacteria domain have the capacity to colonize the rhizosphere and to interact with plants. Leguminous and actinorhizal plants can obtain their nitrogen by association with rhizobia or Frankia via differentiation on their respective host plants of a specialized organ, the root nodule. Other symbiotic associations involve heterocystous cyanobacteria, while increasing numbers of nitrogen-fixing species have been identified as colonizing the root surface and, in some cases, the root interior of a variety of cereal crops and pasture grasses. Basic and advanced aspects of these associations are covered in this review.read more
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Book ChapterDOI
Soil Microorganisms and Quality of the Coffee Beverage
Paulo Prates Júnior,Tomás Gomes Reis Veloso,Marliane de Cássia Soares da Silva,José Maria Rodrigues da Luz,Sabrina Feliciano Oliveira,Maria Catarina Megumi Kasuya +5 more
TL;DR: In this paper, the biological component is taken into account, since it is closely interrelated with physical and chemical components, together with the focus should not only be on increasing production and productivity, but recognize the role of technological activity aiming to produce better and favoring the quality the health, sovereignty and food security.
Book ChapterDOI
Rhizodeposition: An Unseen Teaser of Nature and Its Prospects in Nutrients Dynamics
TL;DR: In this article, the root-derived compounds and plant materials that are released from living roots during plant growth are defined as all root derived compounds, including inorganic ions, sloughed cells, mucilages, exudates and root hairs.
Journal ArticleDOI
Exploration of Plant Growth-Promoting Rhizobacteria (PGPR) for Improving Productivity and Soil Fertility Under Sustainable Agricultural Practices
TL;DR: In this article , a detailed description of plant growth-promoting rhizobacteria (PGPR) keeping in view their functional mechanisms as eco-friendly approaches to increase productivity and enhance soil fertility is presented.
Journal ArticleDOI
New insights in the molecular events underlying actinorhizal nodulation in the tropical tree Casuarina glauca
Claudine Franche,Hassen Gherbi,Meriem Benabdoun,Sergio Svistoonoff,Valérie Hocher,Didier Bogusz +5 more
TL;DR: A comparative analysis of the symbiotic pathway in actinorhizal trees and legumes will be presented and recent progress in the molecular knowledge of the early stages of the act inorhIZal symbiosis is highlighted.
References
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Journal ArticleDOI
Generic assignments, strain histories, and properties of pure cultures of cyanobacteria
TL;DR: Revisions are designed to permit the generic identification of cultures, often difficult through use of the field-based system of phycological classification, and are both constant and readily determinable in cultured material.
Journal ArticleDOI
Biological Nitrogen Fixation
Robert H. Burris,Gary P. Roberts +1 more
TL;DR: Highlights in biological nitrogen fixation during the last fifty years are highlighted.
Journal ArticleDOI
Applications of the acetylene-ethylene assay for measurement of nitrogen fixation
TL;DR: The biochemical basis of the assay is described along with relevant characteristics including Km, C2H2/N2 conversion factor, and specific N2[C2H 2]-fixing activities obtained with various systems, and methods of measurement of N2 fixation are compared.
Journal ArticleDOI
Coordinating nodule morphogenesis with rhizobial infection in legumes.
TL;DR: This review focuses on the tissue-specific nature of the developmental processes associated with nodulation and the mechanisms by which these processes are coordinated during the formation of a nodule.
Journal ArticleDOI
Genetic regulation of biological nitrogen fixation
Ray Dixon,Daniel Kahn +1 more
TL;DR: The ability of microorganisms to use nitrogen gas as the sole nitrogen source and engage in symbioses with host plants confers many ecological advantages, but also incurs physiological penalties because the process is oxygen sensitive and energy dependent.