scholarly journals Investigating the Role of Three Species of Arbuscular Mycorrhizal Fungi on Growth, Acid Phosphatase Enzyme Activity and Phenolic Compounds in Zinnia Plant under Drought Stress Conditions

2020 ◽  
Vol 9 (4) ◽  
Keyword(s):  
Enzyme Activity ◽  
Acid Phosphatase ◽  
Drought Stress ◽  
Phenolic Compounds ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Stress Conditions ◽  
Phosphatase Enzyme

The role of inoculum identity in drought stress mitigation by arbuscular mycorrhizal fungi in soybean

2014 ◽  
Vol 51 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Betiana C. Grümberg ◽  
Carlos Urcelay ◽  
María A. Shroeder ◽  
Silvina Vargas-Gil ◽  
Celina M. Luna
Keyword(s):  
Drought Stress ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal

scholarly journals Effects of Nitroxin and arbuscular mycorrhizal fungi on the agro-physiological traits and grain yield of sorghum (Sorghum bicolor L.) under drought stress conditions

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243824
Author(s):  
Shirzad Kamali ◽  
Ahmad Mehraban
Keyword(s):  
Drought Stress ◽  
Arbuscular Mycorrhizal Fungi ◽  
Grain Yield ◽  
Sorghum Bicolor ◽  
Mycorrhizal Fungi ◽  
Electrolyte Leakage ◽  
Arbuscular Mycorrhizal ◽  
Soluble Proteins ◽  
Stress Conditions ◽  
Water Saturation Deficit

The use of bio-fertilizers in agro-ecosystems is considered to have the potential to improve plant growth in extreme environments featuring water shortages. However, while arbuscular mycorrhizal fungi (AMF) and bacteria bio-fertilizers have been used in other plants to enhance stress tolerance, little is known about their symbiotic effect on sorghum (Sorghum bicolor L.) growth under drought stress conditions. Therefore the aim of this study was to investigate the inoculation of sorghum with Nitroxin and Glomus mosseae and their interaction effects on the agro-physiological characteristics and grain yield of sorghum under drought stress conditions. Nitroxin is a bio-fertilizer that consists of a mixture of Azospirillum and Azotobacter bacteria. The results showed that co-inoculation of sorghum seeds with Nitroxin and AMF improved the chlorophyll (a, b and total) content, soluble proteins, water use efficiency) WUE(, relative water content (RWC), nitrogen (N) content in the plant, AMF spore density, proline content, grain yield, panicle length, the number of panicles per plant, grain number per panicle, 1000-grain weight and decreased the electrolyte leakage and water saturation deficit (WSD) in drought stress and non-stress conditions. Under drought stress conditions, there was a 27% increase in grain yield under the synergistic effects of bacteria and fungi compared to the non-application of these microorganisms. The results of this experiment show that Nitroxin and AMF bio-fertilizers can mitigate the negative effects of stress on plants in drought stress conditions by increasing the amount of photosynthetic pigments, soluble proteins and osmotic regulation and decreasing electrolyte leakage. We found that the combination of bacteria and AMF for sorghum growth and yield increment is a promising method to cope with the stress caused by drought.

scholarly journals Arbuscular Mycorrhizal Fungi Increase the Phenolic Compounds Concentration in the Bark of the Stem of Libidibia Ferrea in Field Conditions

2017 ◽  
Vol 11 (1) ◽  
pp. 283-291 ◽  
Author(s):  
Emanuela Lima dos Santos ◽  
Francineyde Alves da Silva ◽  
Fábio Sérgio Barbosa da Silva
Keyword(s):  
Phenolic Compounds ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Field Conditions ◽  
Drying Process ◽  
Medicinal Properties ◽  
Metabolites Production ◽  
Gigaspora Albida

Background: Libidibia ferrea is a species particular to the caatinga presenting medicinal properties for containing bioactive compounds. The use of Arbuscular Mycorrhizal Fungi (AMF) can increase the production of biomolecules in the legume leaves; however, no light has been shed on the role of symbiosis in maximizing metabolites production in the bark of L. ferrea stem. Objective: The aim was to select AMF that are efficient at increasing the production of phenolic compounds with medicinal properties in the bark of the L. ferrea stem. Methods: The experiment was designed in randomized blocks with four inoculation treatments (plants pre-inoculated with Claroideoglomus etunicatum, with Gigaspora albida, with Acaulospora longula, and non-inoculated plants – control) with six repetitions. Thirteen months after the transplanting, the plants were pruned and the bark of the stem was collected; subsequently, this plant material was dried in a chamber. After the drying process, fractions of the bark of the stem were macerated in methanol. The extracts were further used for analyses of the biomolecules. Results: The flavonoids concentration had an increase of, respectively, 236% and 186% in relation to the control for the treatments with A. longula and C. etunicatum; plants inoculated with A. longula had an increase of 47% in total tannins concentration compared with the non-inoculated control – a benefit that the proanthocyanidins did not present. Conclusion: Applying inoculation with A. longula may be an alternative to increase the production of biomolecules of the secondary metabolism in the bark of the L. ferrea stem in field conditions.

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