Response ofSetaria italica to inoculation withAzospirillum brasilense as compared toAzotobacter chroococcum

Yahalom, Eli; Kapulnik, Yoram; Okon, Yaacov

doi:10.1007/bf02220772

Cited by 37 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering the intracellular presence of this nitrogenated material, including a possible protein reserve, the present study supports the hypothesis proposed by Yahalom et al (1984) and by Christiansen-Weniger and Van Veen (1991). Accordingly, free-living, diazotrophic microorganisms may contribute nitrogen to the environment, in the form of decomposed bacterial structures.…”

Section: Resultssupporting

confidence: 90%

During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances

Miyasaka

Thuler

Floh

et al. 2003

Microbiological Research

View full text Add to dashboard Cite

Beijerinckia derxii, a free-living nitrogen-fixing bacterium, maintained an increasing nitrogenase specific activity during the stationary growth phase. To verify the destination of the nitrogen fixed during this phase, intra and extracellular nitrogenated contents were analyzed. Organic nitrogen and amino acids were detected in the supernatant of the cultures. An increase in intracellular content of both nitrogen and protein occurred. Cytoplasmic granules indicated the presence of arginine. The ability of a non-diazotrophic bacterium (E. coli) to use B. derxii proteins as a source of nitrogen was observed concomitantly with E. coli growth. There is a suggestion that B. derxii contributes to the environment by both releasing nitrogenated substances and accumulating substances capable of being consumed after its death.

show abstract

Section: Resultssupporting

confidence: 90%

During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances

Miyasaka

Thuler

Floh

et al. 2003

Microbiological Research

View full text Add to dashboard Cite

show abstract

“…Rhizospheric bacteria of the genus Azospirillum are known for their ability to improve grain and dry matter yields of crop plants (Yahalom et al, 1984;Wani et al, 1985;Fayez and Daw, 1987;Tilak and Subba Rao, 1987;Sarig et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Growth enhancement of maize (Zea mays L) through Azospirillum lipoferum inoculation : effect of plant genotype and bacterial concentration

Arsac¹,

Lamothe²,

Mulard³

et al. 1990

Agronomie

View full text Add to dashboard Cite

“…Many reports exist which show increases in acetylene reduction activity associated with plants when inoculated with Azospirillum (Bouton and Zuberer, 1979;Cohen et al, 1980;Hegazi et al, 1983;Kapulnik et al, 1982;Schank et al, 1981;Yahalom et al, 1984), although the data of Okon et al (1983) suggest that at least in some cases only a small proportion (5%) of the N 2 fixed was incorporated into the plants.…”

Section: Nitrogen Fixation In Grasses and Cereals 55mentioning

confidence: 93%

Nitrogen fixation associated with grasses and cereals: Recent results and perspectives for future research

1988

View full text Add to dashboard Cite

Over the last few years research in the area of biological nitrogen fixation (BNF) associated with cereals and grasses has become divided into two areas. On the one hand there have been a large number of reports of responses of field-grown plants to inoculation with N 2-fixing bacteria, principally Azospirillum spp. On the other hand there have been several reports of significant contributions of associated BNF to the nutrition of several crops, including wetland rice, sugar cane and some forage grasses. However, where BNF contributions have definitely been established no certain information is available as to the diazotrophic organisms responsible. Furthermore, certain recent reports indicate that, at least in some cases, responses of plants to inoculation with Azospirillum spp. have been shown not to be due to BNF contributions.In this paper we review some recent progress in this field, particularly at our institute in Rio de Janeiro, concerning specificity of selected Azospirillum strains in the infection of cereal roots and the promotion of responses in the host plants. The possible mechanisms of plant response are discussed including the possibility that plant growth substances or bacterial nitrate reductase are involved. The application of ~SN and N balance techniques to the quantification of plant associated BNF are considered and the possible strategies that may be adopted to further the understanding of true N 2-fixing plant/diazotroph associations.The recent discovery of many more plant-associated N2-fixing bacteria suggests that further research in this area may eventually lead to the development of such associations with applications for agricultural productivity.

show abstract

Response ofSetaria italica to inoculation withAzospirillum brasilense as compared toAzotobacter chroococcum

Cited by 37 publications

References 17 publications

During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances

During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances

Growth enhancement of maize (Zea mays L) through Azospirillum lipoferum inoculation : effect of plant genotype and bacterial concentration

Nitrogen fixation associated with grasses and cereals: Recent results and perspectives for future research

Contact Info

Product

Resources

About