Will Phosphate Bio-Solubilization Stimulate Biological Nitrogen Fixation in Grain Legumes?

Janati, Walid; Benmrid, Bouchra; Elhaissoufi, Wissal; Zeroual, Youssef; Nasielski, Joshua; Bargaz, Adnane

doi:10.3389/fagro.2021.637196

Cited by 22 publications

(13 citation statements)

References 100 publications

(138 reference statements)

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“…is not only increasing the availability of phosphorus, but also nitrogen (AbdElgawad et al, 2020). Janati et al (2021) also reported the importance of microbial P bio-solubilization such as Actinomycetes spp. as a pathway for improving biological nitrogen fixation (BNF) in grain legumes via P solubilizing microorganisms (PSM) and P solubilizing bacteria (PSB).…”

Section: Resultsmentioning

confidence: 98%

Photosynthetic Paramaters of Two Indonesian Soybean Top Varieties

2021

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Each plant genotype has its own photosynthetic parameters required to run crop growth model. The research is aimed to characterize photosynthetic parameters particularly maximum photosynthesis and initial light use efficiency of two soybean varieties widely planted in Indonesia, Dena-1 and Anjasmoro. Photosynthetic performances were measured in a designed experiment to study the effect of Actinomycetes spp. on growth and yield of soybean. Photosynthesis was measured using an open chamber portable photosynthetic system (LI-6400), at variable Photosynthetically Active Radiation (PAR), i.e. 500; 1,000; 1,500; and 2,000 µmol (photon)/m 2 /s. The photosynthetic light response curve (PN/I curve) was developed using Solver function of Microsoft Excel. Maximum gross photosynthesis (P gmax ) of Dena-1 is 45.64 μmol (CO 2 )/m 2 /s, while Anjasmoro variety is only 34.81 μmol (CO 2 )/m 2 /s. Quantum yield at low light (initial light use efficiency) of Dena-1 is also higher with the value of 0.068 μmol (CO 2 )/μmol(photons) compared to Anjasmoro that have 0.058 μmol (CO 2 )/μmol (photons). Hence light response curve of Dena-1 variety is consistently higher than Anjasmoro. Under Actinomycetes spp. treatment the light response curve of Dena-1 is higher than Anjasmoro at PAR lower than 706 μmol (photon)/m 2 /s and higher at PAR above it.

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Section: Resultsmentioning

confidence: 98%

Photosynthetic Paramaters of Two Indonesian Soybean Top Varieties

2021

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“…For instance, Bradyrhizobium were positively correlated with AP in the rhizosphere of in situ wild rice, but after longterm transplantation ex situ, this relationship shifted to a negative correlation. Nitrogen fixation by bacteria such as Bradyrhizobium is typically hampered by low phosphorus availability in N-fixing grain legumes [58]. These opposing correlations might reflect the significantly higher abundance of Bradyrhizobium in the rhizosphere of ex situ wild rice compared with in situ wild rice, suggesting a threshold value of abundance that controls the correlation with AP.…”

Section: Discussionmentioning

confidence: 99%

Nitrogen, manganese, iron, and carbon resource acquisition are potential functions of the wild rice Oryza rufipogon core rhizomicrobiome

et al. 2022

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Background The assembly of the rhizomicrobiome, i.e., the microbiome in the soil adhering to the root, is influenced by soil conditions. Here, we investigated the core rhizomicrobiome of a wild plant species transplanted to an identical soil type with small differences in chemical factors and the impact of these soil chemistry differences on the core microbiome after long-term cultivation. We sampled three natural reserve populations of wild rice (i.e., in situ) and three populations of transplanted in situ wild rice grown ex situ for more than 40 years to determine the core wild rice rhizomicrobiome. Results Generalized joint attribute modeling (GJAM) identified a total of 44 amplicon sequence variants (ASVs) composing the core wild rice rhizomicrobiome, including 35 bacterial ASVs belonging to the phyla Actinobacteria, Chloroflexi, Firmicutes, and Nitrospirae and 9 fungal ASVs belonging to the phyla Ascomycota, Basidiomycota, and Rozellomycota. Nine core bacterial ASVs belonging to the genera Haliangium, Anaeromyxobacter, Bradyrhizobium, and Bacillus were more abundant in the rhizosphere of ex situ wild rice than in the rhizosphere of in situ wild rice. The main ecological functions of the core microbiome were nitrogen fixation, manganese oxidation, aerobic chemoheterotrophy, chemoheterotrophy, and iron respiration, suggesting roles of the core rhizomicrobiome in improving nutrient resource acquisition for rice growth. The function of the core rhizosphere bacterial community was significantly (p < 0.05) shaped by electrical conductivity, total nitrogen, and available phosphorus present in the soil adhering to the roots. Conclusion We discovered that nitrogen, manganese, iron, and carbon resource acquisition are potential functions of the core rhizomicrobiome of the wild rice Oryza rufipogon. Our findings suggest that further potential utilization of the core rhizomicrobiome should consider the effects of soil properties on the abundances of different genera.

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“…Seed treatment 250 ml ha -1 + soil application 2.5 L ha -1 increased plant height by 14.2% and leaf number by 3.8% when compared to seed treatment 250 ml ha -1 without combination of soil application. This study showed that beneficial soil microbes in this case N-fixing bacteria and phosphate solubilizing bacteria were important role to promote plant growth and yield [13]. The microbial inoculants are an alternative to reduce the use of chemical fertilizers.…”

Section: Table 1 Effect Of Bio Fertilizers Application Technique On P-available and N-totalmentioning

confidence: 98%

Biofertilizers Application to Improve Growth of Maize and Soil Nutrients

et al. 2021

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Conventional productivity improvement still relies on the use of inorganic fertilizers. The continuous use of inorganic fertilizers is not effective in supporting the improvement of soil health; therefore it is necessary to use environmentally friendly fertilizers such as bio fertilizers. A pot experiment was carried out to study the effect of bio fertilizers application method on growth of maize and soil nutrient (Ntotal and P-available). Randomized block design was used with nine treatments repeated three times. Liquid bio fertilizers based mollases consist of nitrogen fixing bacteria (Azotobacter chroococcum and Azospirillum) and phosphate solubilizing bacteria (Pseudomonas malei and Bacillus subtillis). The treatments consisted of control, application of biofertilizers to seed (seed treatment) at a dose of 500 ml ha-1 and 250 ml ha-1, application to the soil (soil application with a dose of 5 L and 2.5 L ha-1, and combinations of seed and soil application. The results showed that application of biofertilizer increased soil nitrogen (Ntotal), P-available and growth of maize. The combinations of seed and soil application gave a better effect than seed treatment or soil application. Seed treatment 250 ml ha-1 + soil application 2,5 L ha-1 increased soil nitrogen by 127.2% and P-available by 42.2%.

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Will Phosphate Bio-Solubilization Stimulate Biological Nitrogen Fixation in Grain Legumes?

Cited by 22 publications

References 100 publications

Photosynthetic Paramaters of Two Indonesian Soybean Top Varieties

Photosynthetic Paramaters of Two Indonesian Soybean Top Varieties

Nitrogen, manganese, iron, and carbon resource acquisition are potential functions of the wild rice Oryza rufipogon core rhizomicrobiome

Biofertilizers Application to Improve Growth of Maize and Soil Nutrients

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