Toxicity of Molybdenum-Based Nanomaterials on the Soybean–Rhizobia Symbiotic System: Implications for Nutrition

2020 ◽  
Vol 3 (6) ◽  
pp. 5773-5782
Author(s):  
Jianhong Yang ◽  
Zhiyong Song ◽  
Jun Ma ◽  
Heyou Han
Keyword(s):  
Symbiotic System ◽  
Soybean Rhizobia

scholarly journals Hydrogen Sulfide Promotes Nodulation and Nitrogen Fixation in Soybean–Rhizobia Symbiotic System

2019 ◽  
Vol 32 (8) ◽  
pp. 972-985 ◽  
Author(s):  
Hang Zou ◽  
Ni-Na Zhang ◽  
Qing Pan ◽  
Jian-Hua Zhang ◽  
Juan Chen ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Hydrogen Sulfide ◽  
Glutamate Synthase ◽  
Marker Genes ◽  
Symbiotic System ◽  
Signaling Molecule ◽  
Sodium Hydrosulfide ◽  
Physiological Processes ◽  
Soybean Rhizobia ◽  
Early Nodulin

The rhizobium–legume symbiotic system is crucial for nitrogen cycle balance in agriculture. Hydrogen sulfide (H2S), a gaseous signaling molecule, may regulate various physiological processes in plants. However, whether H2S has regulatory effect in this symbiotic system remains unknown. Herein, we investigated the possible role of H2S in the symbiosis between soybean (Glycine max) and rhizobium (Sinorhizobium fredii). Our results demonstrated that an exogenous H2S donor (sodium hydrosulfide [NaHS]) treatment promoted soybean growth, nodulation, and nitrogenase (Nase) activity. Western blotting analysis revealed that the abundance of Nase component nifH was increased by NaHS treatment in nodules. Quantitative real-time polymerase chain reaction data showed that NaHS treatment upregulated the expressions of symbiosis-related genes nodA, nodC, and nodD of S. fredii. In addition, expression of soybean nodulation marker genes, including early nodulin 40 (GmENOD40), ERF required for nodulation (GmERN), nodulation signaling pathway 2b (GmNSP2b), and nodulation inception genes (GmNIN1a, GmNIN2a, and GmNIN2b), were upregulated. Moreover, the expressions of glutamate synthase (GmGOGAT), asparagine synthase (GmAS), nitrite reductase (GmNiR), ammonia transporter (GmSAT1), leghemoglobin (GmLb), and nifH involved in nitrogen metabolism were upregulated in NaHS-treated soybean roots and nodules. Together, our results suggested that H2S may act as a positive signaling molecule in the soybean–rhizobia symbiotic system and enhance the system’s nitrogen fixation ability.

scholarly journals Hydrogen sulfide promotes nodulation and nitrogen fixation in soybean-rhizobia symbiotic system

2018 ◽  
Author(s):  
Hang Zou ◽  
Ni-Na Zhang ◽  
Qing Pan ◽  
Jian-Hua Zhang ◽  
Juan Chen ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Hydrogen Sulfide ◽  
Glutamate Synthase ◽  
Marker Genes ◽  
Symbiotic System ◽  
Signaling Molecule ◽  
Sodium Hydrosulfide ◽  
Physiological Processes ◽  
Soybean Rhizobia ◽  
Early Nodulin

AbstractThe rhizobium-legume symbiotic system is crucial for nitrogen cycle balance in agriculture. Hydrogen sulfide (H2S), a gaseous signaling molecule, may regulate various physiological processes in plants. However, whether H2S has regulatory effect in this symbiotic system remains unknown. Herein, we investigated the possible role of H2S in the symbiosis between soybean (Glycine max) and rhizobium (Sinorhizobium fredii). Our results demonstrated that exogenous H2S donor (sodium hydrosulfide, NaHS) treatment promoted soybean growth, nodulation and nitrogenase (Nase) activity. Western blotting analysis revealed that the abundance of nitrogenase component nifH was increased by NaHS treatment in nodules. Quantitative real-time PCR data showed that NaHS treatment up-regulated the expressions of symbiosis-related genesnodCandnodDofS. fredii. Besides, expression of soybean nodulation marker genes including early nodulin 40 (GmENOD40), ERF required for nodulation (GmERN), nodulation signaling pathway2b (GmNSP2b) and nodulation inception genes (GmNIN1a, GmNIN2aandGmNIN2b) were up-regulated. Moreover, the expressions of glutamate synthase (GmGS), nitrite reductase (GmNiR), ammonia transporter (GmSAT1), andnifHinvolved in nitrogen metabolism were up-regulated in NaHS-treated soybean roots and nodules. Together, our results suggested that H2S may act as a positive signaling molecule in soybean-rhizobia symbiotic system and enhance their nitrogen fixation ability.HighlightWe demonstrated for the first time that H2S as a signaling molecule may promote the establishment of symbiotic relationship and nitrogen fixation ability in the soybean-rhizobia symbiotic system.

Rapid Photometric Variability Of The Symbiotic System CH Cyg During 2008–15

2015 ◽  
Vol 71-72 ◽  
pp. 107-108
Author(s):  
S. Shugarov ◽  
A. Skopal ◽  
M. Sekeráš ◽  
G. Komissarova ◽  
M. Wolf
Keyword(s):  
Symbiotic System ◽  
Photometric Variability

A Review on Algal-Bacterial Symbiotic System for Effective Treatment of Wastewater

Chemosphere ◽  
2021 ◽  
pp. 129540
Author(s):  
A. Saravanan ◽  
P. Senthil Kumar ◽  
Sunita Varjani ◽  
S. Jeevanantham ◽  
P.R. Yaashikaa ◽  
...  
Keyword(s):  
Effective Treatment ◽  
Symbiotic System
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