Effects of root-associated N2-fixing cyanobacteria on the growth and nitrogen content of wheat (Triticum vulgare L.) seedlings

Autor:	Zorica Obreht, Peter Rowell, Nigel W. Kerby, Miroslav Gantar
Rok vydání:	1993
Předmět:	Cyanobacteria Nostoc biology Anabaena food and beverages Soil Science Nitrogenase biology.organism_classification Microbiology Dry weight Shoot Botany Nitrogen fixation Poaceae Agronomy and Crop Science
Zdroj:	Biology and Fertility of Soils. 15:68-72
ISSN:	1432-0789 0178-2762
DOI:	10.1007/bf00336292
Popis:	Following co-cultivation of wheat with N2-fixing cyanobacterial isolates capable of forming associations, Nostoc 2S6B, 2S9B or Anabaena C5, for 15 days in the presence or absence of combined N a large stimulation of root length was observed without any increase in root dry weight. Increases in the N concentrations of both roots and shoots occurred following co-cultivation with most cyanobacteria tested. The increase in plant N concentrations appeared to be dependent on the wheat cultivar and the cyanobacterial isolate used. Nostoc isolates had similar nitrogenase activities when associated with roots and when grown in shake-flask cultures. The nitrogenase activity of roots colonized by Anabaena C5 or Nostoc 2S6B was higher following removal of loosely associated cyanobacteria.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1618957c9fe6c5d860059fe4bc2a20f2 https://doi.org/10.1007/bf00336292 Zobrazit plný text záznamu Full text from SpringerLink