scholarly journals Soil nitrogen regulates symbiotic nitrogen fixation in a legume shrub but does not accumulate under it

Ecosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
Author(s):  
Moshe Alon ◽  
Guy Dovrat ◽  
Tania Masci ◽  
Efrat Sheffer
Keyword(s):  
Nitrogen Fixation ◽  
Soil Nitrogen ◽  
Symbiotic Nitrogen Fixation

Light regulates tropical symbiotic nitrogen fixation more strongly than soil nitrogen

Nature Plants ◽  
2018 ◽  
Vol 4 (9) ◽  
pp. 655-661 ◽  
Author(s):  
Benton N. Taylor ◽  
Duncan N. L. Menge
Keyword(s):  
Nitrogen Fixation ◽  
Soil Nitrogen ◽  
Symbiotic Nitrogen Fixation

scholarly journals Legume species identity and soil nitrogen supply determine symbiotic nitrogen-fixation responses to elevated atmospheric [CO2]

2005 ◽  
Vol 167 (2) ◽  
pp. 523-530 ◽  
Author(s):  
Jason B. West ◽  
Janneke HilleRisLambers ◽  
Tali D. Lee ◽  
Sarah E. Hobbie ◽  
Peter B. Reich
Keyword(s):  
Nitrogen Fixation ◽  
Soil Nitrogen ◽  
Symbiotic Nitrogen Fixation ◽  
Nitrogen Supply ◽  
Atmospheric Co2 ◽  
Legume Species ◽  
Species Identity ◽  
Elevated Atmospheric Co2 ◽  
Soil Nitrogen Supply

scholarly journals Successional changes in soil nitrogen availability, non-symbiotic nitrogen fixation and carbon/nitrogen ratios in southern Chilean forest ecosystems

Oecologia ◽  
2004 ◽  
Vol 141 (3) ◽  
pp. 546-546
Author(s):  
Cecilia A. Pérez ◽  
Martín R. Carmona ◽  
Juan C. Aravena ◽  
Juan J. Armesto
Keyword(s):  
Nitrogen Fixation ◽  
Soil Nitrogen ◽  
Nitrogen Availability ◽  
Forest Ecosystems ◽  
Symbiotic Nitrogen Fixation ◽  
Soil Nitrogen Availability

Effect of pasture age on the efficiency of nitrogen fixation by 10 accessions of Stylosanthes spp

1985 ◽  
Vol 25 (1) ◽  
pp. 70 ◽  
Author(s):  
I Vallis ◽  
CJ Gardener
Keyword(s):  
Nitrogen Fixation ◽  
Age Differences ◽  
Soil Nitrogen ◽  
Nitrogen Uptake ◽  
Isotope Dilution ◽  
Symbiotic Nitrogen Fixation ◽  
Isotope Dilution Method ◽  
Dilution Method ◽  
Total Uptake ◽  
Pasture Age

The proportion of legume nitrogen that had been symbiotically fixed in 10 accessions of Stylosanthes spp. was determined by an isotope dilution method in microplots within grazed pastures 1, 4 and 6 years after the legumes were sown in association with buffel grass at Lansdown, near Townsville, Queensland. The proportion, averaged over all accessions, varied between years from 0.79 to 0.83, but was not related to pasture age, differences in legume yield, or total uptake of soil nitrogen. Within years, the proportion in individual plots was weakly and negatively correlated with legume yield and soil nitrogen uptake 4 years after sowing, but not at other times. No significant differences in proportions between the 10 accessions of Stylosanthes were demonstrated. It is concluded that, in these pastures, the efficiency of nitrogen fixation by the legume is not greatly affected by changes in the availability of soil nitrogen as the pasture ages. Consequently, the rate of symbiotic nitrogen fixation will depend mainly on the growth of the legume.

Successional changes in soil nitrogen availability, non-symbiotic nitrogen fixation and carbon/nitrogen ratios in southern Chilean forest ecosystems

Oecologia ◽  
2004 ◽  
Vol 140 (4) ◽  
pp. 617-625 ◽  
Author(s):  
Cecilia A. Pérez ◽  
Martín R. Carmona ◽  
Juan C. Aravena ◽  
Juan J. Armesto
Keyword(s):  
Nitrogen Fixation ◽  
Soil Nitrogen ◽  
Nitrogen Availability ◽  
Forest Ecosystems ◽  
Symbiotic Nitrogen Fixation ◽  
Soil Nitrogen Availability

Reduction of Growth and Symbiotic Nitrogen Fixation in Soybean as Affected by the Site of Simulated Acid Rain Application.

1997 ◽  
Vol 66 (4) ◽  
pp. 596-602 ◽  
Author(s):  
Xianyu WANG ◽  
Makoto TSUDA ◽  
Tetsuro TANIYAMA
Keyword(s):  
Nitrogen Fixation ◽  
Acid Rain ◽  
Symbiotic Nitrogen Fixation ◽  
Simulated Acid Rain

scholarly journals Plasmids Related to the Symbiotic Nitrogen Fixation Are Not Only Cooperated Functionally but Also May Have Evolved over a Time Span in Family Rhizobiaceae

2020 ◽  
Vol 12 (11) ◽  
pp. 2002-2014
Author(s):  
Ling-Ling Yang ◽  
Zhao Jiang ◽  
Yan Li ◽  
En-Tao Wang ◽  
Xiao-Yang Zhi
Keyword(s):  
Nitrogen Fixation ◽  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Symbiotic Nitrogen Fixation ◽  
Gene Families ◽  
Time Span ◽  
Soil Conditions ◽  
Gene Gain ◽  
Nitrogen Fixing ◽  
Pan Genome

Abstract Rhizobia are soil bacteria capable of forming symbiotic nitrogen-fixing nodules associated with leguminous plants. In fast-growing legume-nodulating rhizobia, such as the species in the family Rhizobiaceae, the symbiotic plasmid is the main genetic basis for nitrogen-fixing symbiosis, and is susceptible to horizontal gene transfer. To further understand the symbioses evolution in Rhizobiaceae, we analyzed the pan-genome of this family based on 92 genomes of type/reference strains and reconstructed its phylogeny using a phylogenomics approach. Intriguingly, although the genetic expansion that occurred in chromosomal regions was the main reason for the high proportion of low-frequency flexible gene families in the pan-genome, gene gain events associated with accessory plasmids introduced more genes into the genomes of nitrogen-fixing species. For symbiotic plasmids, although horizontal gene transfer frequently occurred, transfer may be impeded by, such as, the host’s physical isolation and soil conditions, even among phylogenetically close species. During coevolution with leguminous hosts, the plasmid system, including accessory and symbiotic plasmids, may have evolved over a time span, and provided rhizobial species with the ability to adapt to various environmental conditions and helped them achieve nitrogen fixation. These findings provide new insights into the phylogeny of Rhizobiaceae and advance our understanding of the evolution of symbiotic nitrogen fixation.

scholarly journals Antioxidation and symbiotic nitrogen fixation function of prxA gene in Mesorhizobium huakuii

2019 ◽  
Vol 8 (10) ◽  
Author(s):  
Sanjiao Wang ◽  
Tiantian Lu ◽  
Qiang Xue ◽  
Ke Xu ◽  
Guojun Cheng
Keyword(s):  
Nitrogen Fixation ◽  
Symbiotic Nitrogen Fixation ◽  
Mesorhizobium Huakuii
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