nitrogen-fixing algae

См. также в других словарях:

• nitrogen-fixing bacteria — ▪ biology and ecology       microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen, inorganic compounds usable by plants. More than 90 percent of all nitrogen fixation is effected by them.       Two kinds of nitrogen… …   Universalium

• nitrogen fixation — 1. any process of combining atmospheric nitrogen with other elements, either by chemical means or by bacterial action: used chiefly in the preparation of fertilizers, industrial products, etc. 2. this process as performed by certain bacteria… …   Universalium

• Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher …   Wikipedia

• blue-green algae — Biol. a widely distributed group of predominantly photosynthetic prokaryotic organisms of the subkingdom Cyanophyta, resembling phototrophic bacteria, occurring singly or in colonies in diverse habitats: some species can fix atmospheric nitrogen …   Universalium

• Jan-Hendrik Becking — (* 9. Juni 1924 in Blora, Java, Indonesien; † 16. Januar 2009 in Wageningen, Niederlande) war ein niederländischer Biologe, Mikrobiologe, Pflanzenphysiologe und Ornithologe. Ja …   Deutsch Wikipedia

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• Microbial metabolism — is the means by which a microbe obtains the energy and nutrients (e.g. carbon) it needs to live and reproduce. Microbes use many different types of metabolic strategies and species can often be differentiated from each other based on metabolic… …   Wikipedia

• Culture of microalgae in hatcheries — Raceway pond used to cultivate microalgae. The water is kept in constantly motion with a powered paddle wheel. Microalgae or microscopic algae grow in either marine or freshwater systems. They are primary producers in the oceans that convert… …   Wikipedia

• bacteria — bacterial, adj. bacterially, adv. /bak tear ee euh/, n.pl., sing. bacterium / tear ee euhm/. ubiquitous one celled organisms, spherical, spiral, or rod shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom …   Universalium

• Cyanobacteria — Temporal range: 3500–0 Ma Had n Archean …   Wikipedia