Symbiotic Nitrogen Fixation for Sustainable Agriculture

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Production".

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 3790

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Guest Editor
School of Agriculture, University of Wisconsin-Platteville, WI 53818, USA
Interests: plant–microbe symbiotic signaling; plant defense signaling; rhizosphere microbiome; plant disease management
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Special Issue Information

Dear Colleagues,

I would like to invite you to contribute to a Special Issue of the journal Agriculture entitled “Symbiotic Nitrogen Fixation for Sustainable Agriculture” under the section Crop Production.

Nitrogen is a major limiting resource of plant growth in agricultural production. The practice of input-driven intensive agriculture to feed the ever-growing population has led to excessive use of nitrogenous fertilizers, which has resulted in ecological disasters in many parts of the world. Contemporary efforts in sustainable agriculture to address this nitrogen shortage have turned to biological nitrogen fixation as a biotechnological solution. Legumes have the ability to establish a mutualistic association with soil bacteria known as rhizobia which form root nodules, inside of which atmospheric dinitrogen is reduced into assimilable forms and supplied to host plants. However, non-legumes (with few exceptions) lack the ability to associate with diazotrophs to meet their nitrogen demands. While the most efficient processes for biological nitrogen fixation occur in symbioses between nitrogen-fixing rhizobial bacteria and plants in the Leguminosae family, less efficient yet simpler processes have arisen in plant evolution that may serve as tractable candidates to contemporary bioengineering. These simpler symbioses have the potential to be developed as new model systems using recent advancements in the fields of ‘omics’. Over the past two decades, elegant genetic, genomic, and biochemical studies have been conducted on legume nodulation to decipher the intricacies of this unique plant–microbe association.

This Special Issue intends to summarize the recent progress in the elucidation of biological nitrogen fixation pertaining to root nodule symbioses, legume–rhizobia symbiotic signaling, rhizobial infection, actinorhizal symbiotic signaling, nodule organogenesis, nitrogen assimilation, and nodule senescence. Submission of manuscripts on studies that utilize biochemical, genetic, pharmacological, genomic approaches to further our knowledge in the area of root nodule symbioses and symbiotic nitrogen fixation, and reviews that discuss the scope of transferring the legume–rhizobia symbiotic signaling to non-legumes is strongly encouraged. All types of articles, original research, opinions, and reviews that provide new insights into legume–rhizobia symbiosis are welcome.

Thank you for considering my request to submit your manuscripts to this Special Issue. I look forward to receiving your contributions.

Please let me know if you need any additional information.

Dr. Muthu Venkateshwaran
Guest Editor

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  • root nodule symbiosis
  • legume nodulation
  • actinorhizal symbiosis
  • biological nitrogen fixation
  • symbiotic signaling
  • rhizobial infection
  • nodule organogenesis
  • nodule senescence
  • transcriptomics
  • proteomics
  • phosphoproteomics
  • metabolomics
  • comparative genomics
  • evolution of nodulation

Published Papers (1 paper)

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15 pages, 1530 KiB  
Biological N Fixation and N Transfer in an Intercropping System between Legumes and Organic Cherry Tomatoes in Succession to Green Corn
by Gabriela Cristina Salgado, Edmilson Jose Ambrosano, Fabrício Rossi, Ivani Pozar Otsuk, Gláucia Maria Bovi Ambrosano, Cesar Augusto Santana, Takashi Muraoka and Paulo Cesar Ocheuze Trivelin
Agriculture 2021, 11(8), 690; - 22 Jul 2021
Cited by 11 | Viewed by 2863
The aim of this study was to investigate the transfer of N from different legumes to cherry tomatoes in the intercropping system under residual straw of the previous green corn crop using the 15N natural abundance method. We also investigated the temporal [...] Read more.
The aim of this study was to investigate the transfer of N from different legumes to cherry tomatoes in the intercropping system under residual straw of the previous green corn crop using the 15N natural abundance method. We also investigated the temporal variation in nitrogen transfer to a cherry tomato, the biological nitrogen fixation (BNF) of legumes, and the N concentration of green corn cultivated in the intercrop succession. The experimental design was a complete randomized block with eight treatments and five replications, described as follows: two controls consisting of a monocrop of cherry tomato with or without residual straw, cherry tomato and jack bean, sun hemp, dwarf velvet bean, mung bean, and white lupine or cowpea bean in intercropping system. The BNF was responsible for more than half of the N accumulated in the legumes. The N of legumes was transferred to cherry tomato in similar quantities, and the leaves and fruits of cherry tomato received more N transfer than shoots. It was shown that N transfer increases with the growth/development of cherry tomatoes. The intercropping system with legumes did not affect the 15N natural abundance of leaves and the aboveground biomass of green corn cultivated in succession. Full article
(This article belongs to the Special Issue Symbiotic Nitrogen Fixation for Sustainable Agriculture)
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