Enhanced solubilization of iron and calcium phosphates by Aspergillus niger by the addition of alcohols

Barroso, Cinthya Babá; Nahas, Ely

doi:10.1590/s1516-89132013000200003

Cited by 5 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SOTI06 determines the solubility of minerals (Whitelaw et al, 1999; Ogbo, 2010; Barroso and Nahas, 2013). The trend of decrease in calcium carbonate content and increase in Ca 2+ supply from first day onwards indicates that the dissolution process initiated upon inoculation as evidenced from the gluconic acid production by Brevibacterium sp.…”

Section: Discussionmentioning

confidence: 99%

Calcite Dissolution by Brevibacterium sp. SOTI06: A Futuristic Approach for the Reclamation of Calcareous Sodic Soils

2016

View full text Add to dashboard Cite

Assessing the ability of soil microorganisms to dissolute poorly soluble native calcite to supply Ca2+ is a new area to be explored in reclaiming sodic soils by supplying adequate Ca2+ and reducing the recurrent sodicity. Hence, the present study aimed to isolate a calcite dissolving bacteria (CDB) from calcareous sodic soils and to understand the mechanism of calcite dissolution. Of the 33 CDB isolates recovered from the calcareous sodic soils of Tamil Nadu (Coimbatore, Ramnad, and Trichy), 11 isolates were screened for calcite dissolution based on titratable acidity. 16S rRNA gene sequence analysis of the three best isolates viz., SORI09, SOTI05, and SOTI06 revealed 99% similarity to Bacillus aryabhattai, 100% to B. megaterium, and 93% to Brevibacterium sp., respectively. Among them, Brevibacterium sp. SOTI06 released more Ca2+ (3.6 g.l−1) by dissolving 18.6% of the native calcite. The spectral data of FTIR also showed reduction in the intensity of calcite (55.36–41.27) by the isolate at a wave number of 1636 cm−1 which confirmed the dissolution. Besides producing organic acids (gluconic acid and acetic acid), Brevibacterium sp. SOTI06 also produced siderophore (91.6%) and extracellular polysaccharides (EPS, 13.3 μg. ml−1) which might have enhanced the calcite dissolution.

show abstract

Section: Discussionmentioning

confidence: 99%

Calcite Dissolution by Brevibacterium sp. SOTI06: A Futuristic Approach for the Reclamation of Calcareous Sodic Soils

2016

View full text Add to dashboard Cite

show abstract

“…Phosphorus (P) is an essential macronutrient required by all plants [ 1 , 2 ]. It is considered, after nitrogen, as the most critical element for agricultural production, of vital importance in plant growth and development [ 2 , 3 ] because of its role in important biomolecules such as nucleic acids, phospholipids and nucleotides [ 4 , 5 ] as well as photosynthesis and various metabolic processes [ 6 ]. Widely distributed in nature, it is affected by soil type, pH, vegetation type, microbial activity, and fertilizer inputs [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Role of Rahnella aquatilis AZO16M2 in Phosphate Solubilization and Ex Vitro Acclimatization of Musa acuminata var. Valery

et al. 2023

View full text Add to dashboard Cite

Rahnella aquatilis AZO16M2, was characterized for its phosphate solubilization capacity to improve the establishment and survival of Musa acuminata var. Valery seedlings under ex-acclimation. Three phosphorus sources (Rock Phosphate (RF), Ca3(PO4)2 and K2HPO4) and two types of substrate (sand:vermiculite (1:1) and Premix N°8) were selected. The factorial analysis of variance (p < 0.05) showed that R. aquatilis AZO16M2 (OQ256130) solubilizes Ca3(PO4)2 in solid medium, with a Solubilization Index (SI) of 3.77 at 28 °C (pH 6.8). In liquid medium, it was observed that R. aquatilis produced 29.6 mg/L soluble P (pH 4.4), and synthesized organic acids (oxalic, D-gluconic, 2-ketogluconic and malic), Indole Acetic Acid (IAA) (33.90 ppm) and siderophores (+). Additionally, acid and alkaline phosphatases (2.59 and 2.56 µg pNP/mL/min) were detected. The presence of the pyrroloquinoline-quinone (PQQ) cofactor gene was confirmed. After inoculating AZO16M2 to M. acuminata in sand:vermiculite with RF, the chlorophyll content was 42.38 SPAD (Soil Plant Analysis Development). Aerial fresh weight (AFW), aerial dry weight (ADW) and root dry weight (RDW) were superior to the control by 64.15%, 60.53% and 43.48%, respectively. In Premix N°8 with RF and R. aquatilis, 8.91% longer roots were obtained, with 35.58% and 18.76% more AFW and RFW compared with the control as well as 94.45 SPAD. With Ca3(PO4)2, values exceeded the control by 14.15% RFW, with 45.45 SPAD. Rahnella aquatilis AZO16M2 favored the ex-climatization of M. acuminata through improving seedling establishment and survival.

show abstract

Analyzing the Effects of Culture Media Additives on Oxalic Acid Bioproduction for Use in Metal Bioleaching

Bahaloo-Horeh,

Mousavi

2023

Waste Biomass Valor

View full text Add to dashboard Cite

Enhanced solubilization of iron and calcium phosphates by Aspergillus niger by the addition of alcohols

Abstract: The present study deals with the effect of increased concentrations of alcohols (methanol and ethanol)

Cited by 5 publications

References 31 publications

Calcite Dissolution by Brevibacterium sp. SOTI06: A Futuristic Approach for the Reclamation of Calcareous Sodic Soils

Calcite Dissolution by Brevibacterium sp. SOTI06: A Futuristic Approach for the Reclamation of Calcareous Sodic Soils

Role of Rahnella aquatilis AZO16M2 in Phosphate Solubilization and Ex Vitro Acclimatization of Musa acuminata var. Valery

Analyzing the Effects of Culture Media Additives on Oxalic Acid Bioproduction for Use in Metal Bioleaching

Contact Info

Product

Resources

About