Nitrogen Fixation Outside and Inside Plant Tissues

Chanway, C. P.; Anand, Richa; Yang, Henry

doi:10.5772/57532

Cited by 29 publications

(29 citation statements)

References 97 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nitrogen is a basic component of plant cells, chlorophyll in plants and of DNA, RNA, and amino acids in living organisms. Some micro-organisms are capable of fixing atmospheric nitrogen and supply it to plants in a process known as biological nitrogen fixation [2,3]. Through biological nitrogen fixation, around 297 million metric tons of nitrogen are fixed per year [4].…”

Section: Introductionmentioning

confidence: 99%

Plasma N2-fixation: 1900–2014

et al. 2015

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Plasma N2-fixation: 1900–2014

et al. 2015

View full text Add to dashboard Cite

“…BNF is performed by symbiotic, endophytic, or free-living microorganisms [71,72]. Symbiotic bacteria associate with plants forming root nodules (rhizobia), where they fix nitrogen while benefiting from plant photoassimilates.…”

Section: Biological Nitrogen Fixationmentioning

confidence: 99%

“…Symbiotic bacteria associate with plants forming root nodules (rhizobia), where they fix nitrogen while benefiting from plant photoassimilates. It has been observed that this symbiosis occurs not only in plants from the Leguminosae family [71] but also in cereals such as rice, maize, and wheat from the Poaceae family [73]. BNF also occurs in nonsymbiotic associations.…”

Section: Biological Nitrogen Fixationmentioning

confidence: 99%

Organic Nitrogen in Agricultural Systems

Silva¹,

Melo²,

Sombra³

et al. 2020

Nitrogen Fixation

View full text Add to dashboard Cite

This work summarizes information about organic nitrogen (N) in the agricultural system. The organic N forms in soils have been studied by identifying and quantifying the released organic compounds when soils are acid treated at high temperature, in which the following organic N fractions are obtained: hydrolyzable total N, subdivided into hydrolyzable NH 4 + -N, amino sugars-N, amino acids-N, and unidentified-N and acid insoluble N, a fraction that remains associated with soil minerals after acid hydrolysis. Nitrogen mineralization and immobilization are biochemical processes in nature. This chapter summarizes how these processes occur in the agricultural system. Then, soluble organic nitrogen (SON), volatilization and denitrification processes, and biological nitrogen fixation (BNF) as a key component of the nitrogen cycle and how it makes N available to plants are also discussed. Finally, we discuss the use of organic fertilizers as N source to satisfy the worldwide demand for organic foods produced without synthetic inputs.

show abstract

“…Taken literally, the word endophyte means 'in the plant' (endon = within; phyton = plant) [41]. Since our main focus in this chapter is on 'endophytic bacteria,' we would like to reiterate the definition notated by Chanway et al [42]: "bacteria that can be detected at a particular moment within the tissue of apparently healthy plant hosts without inducing disease or organogenesis are known as endophytic bacteria." The occurrence of endophytic bacteria in internal tissues was first reported inside a healthy potato plant [43].…”

Section: Endophytic Bacteriamentioning

confidence: 99%

Nitrogen-Fixation by Endophytic Bacteria in Agricultural Crops: Recent Advances

Puri¹,

Padda²,

Chanway³

2018

Nitrogen in Agriculture - Updates

View full text Add to dashboard Cite

Endophytic bacteria represents a unique class of bacteria that can colonize interior tissues of plant and provide a range of benefits to the plant similar to those provided by the rhizospheric bacteria. Certain endophytic bacteria can provide nitrogen to the plants through biological nitrogen fixation, which is an important source of nitrogen input in agriculture and represents a promising substitute for chemical fertilizers, and are known as endophytic diazotrophic bacteria. Besides fixing nitrogen, endophytic bacteria can produce plant growth hormones like auxin and gibberellin, help in nutrient uptake, and increase the plant's tolerance to biotic and abiotic stresses. Various direct and indirect methods have been used to quantify the amount of nitrogen fixed by these bacteria, including the acetylene reduction assay, which is a quick but indirect method, and the 15 N isotopic dilution assay, which is a robust and accurate method. Research on endophytic diazotrophic bacteria has come a long way, and in this chapter, we have briefly discussed the mechanisms of biological nitrogen fixation and methods to quantify the fixed nitrogen along with reviewing recent studies focused on evaluating the role of endophytic diazotrophic bacteria in promoting plant growth in both native and nonnative crop hosts.

show abstract

Nitrogen Fixation Outside and Inside Plant Tissues

Cited by 29 publications

References 97 publications

Plasma N2-fixation: 1900–2014

Plasma N2-fixation: 1900–2014

Organic Nitrogen in Agricultural Systems

Nitrogen-Fixation by Endophytic Bacteria in Agricultural Crops: Recent Advances

Contact Info

Product

Resources

About