Phosphate solubilization potential and stress tolerance of Eupenicillium parvum from tea soil

Vyas, Pratibha; Rahi, Praveen; Chauhan, Anjali; Gulati, Arvind

doi:10.1016/j.mycres.2007.06.003

Cited by 80 publications

(36 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results in the present study are contradictory to the earlier findings of Barroso et al [21] that reported a correlation between the production of greater biomass and a reduction in pH in the medium supplemented with AlPO 4 than that containing calcium phosphate. Decreased solubilization of phosphate in the presence of aluminium in comparison to iron has also been reported by Vyas et al [25]. Inefficiency of A. sydowii growth in the presence of Fe during the initial period of incubation was an interesting observation.…”

Section: Discussionsupporting

confidence: 72%

Response of Cold-Tolerant Aspergillus spp. to Solubilization of Fe and Al Phosphate in Presence of Different Nutritional Sources

et al. 2013

View full text Add to dashboard Cite

Three species of Aspergillus, namely, A. niger, A. glaucus and A. sydowii, isolated from soil samples collected from the Indian Himalayan Region (IHR), have been investigated for solubilization of aluminium phosphate and iron phosphate in the presence of different carbon and nitrogen sources. Preference of each fungal species varied for nitrogen and carbon sources, in terms of phosphate-solubilization. Among three species, Aspergillus niger gave the best results; it solubilized 32% and 8% of the supplemented aluminium phosphate and iron phosphate, respectively. The results indicated that the effect of carbon and nitrogen sources can influence the phosphate solubilizing efficiency of all the three Aspergillus spp. tested. All the three species were found to be plant-growth promoters in bioassays conducted under greenhouse conditions. The Al and Fe phosphate solubilization efficiency, investigated in the present study, is at the lower end of their previously reported tricalcium phosphate solubilization efficiency. The cultures are likely to have better field applications in agrobiotechnology, due to their potential towards solubilization of Al and Fe phosphates, which are known to have lower solubility through microbial activity.

show abstract

Section: Discussionsupporting

confidence: 72%

Response of Cold-Tolerant Aspergillus spp. to Solubilization of Fe and Al Phosphate in Presence of Different Nutritional Sources

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Because these compounds are hard insoluble P sources, in vitro testing with a culture that includes these compounds is one of the first steps in the selection of microorganisms with a solubilizing capacity (Bashan et al, 2013). The level of solubilization of hard insoluble P compounds may depend on other factors, notably the production of enzymes, the availability of a carbon source that can be assimilated and the secretion of strongly chelating organic acids (Wakelin et al, 2004;Vyas et al, 2007). In our study, we used hard insoluble P sources (hydroxyapatite and strengite), which provided a reliable indicator of the solubilization activity of G. pannorum and P. carneus and suggests that these fungal species have greater potential for P solubilization in the soil.…”

Section: Discussionmentioning

confidence: 99%

Phosphate solubilization by fungi with nematicidal potential

Lima-Rivera

López-Lima

Desgarennes

et al. 2016

J. Soil Sci. Plant Nutr.

View full text Add to dashboard Cite

We evaluated the nematicidal potential and phosphate solubilization ability of the fungal species Geomyces pannorum and Paecilomyces carneus, which are associated with the potato cyst nematode Globodera rostochiensis. In a broth medium containing calcium phosphate, the two fungi solubilized between 67%-96% of the insoluble phosphorus that was present in the medium, and in a broth medium containing iron phosphate, the phosphorus that was solubilized by the two fungi ranged between 2%-13%. In a greenhouse experiment, G. pannorum and P. carneus were applied to soil that was naturally infested with G. rostochiensis and planted with Avena sativa. The fungi increased the available phosphorus in the soil by more than 30%, and Paecilomyces carneus also reduced the nematode population by 71%. This study is the first to report on the ability of G. pannorum and P. carneus to increase the available phosphorus in the soil, suggesting that these fungal species may have potential uses in agricultural soils with insoluble phosphorus. Moreover, this study provides a new alternative that contributes to the sustainable management of crops with bio-agents that have dual activity; they increase the available phosphorus in the soil and mitigate plant parasitic nematodes.

show abstract

“…Even if fairly resistant to Al toxicity, the growth of microbes would be hindered in highly concentrated Al conditions [25,26]. We observed that the growth condition, especially the propagation rate of the isolated fungi, was notably decreased as the Al concentration increased.…”

Section: Discussionmentioning

confidence: 83%

Isolation, Identification and Characterization of Two Aluminum-Tolerant Fungi from Acidic Red Soil

Wang

Liao

et al. 2016

Indian J Microbiol

View full text Add to dashboard Cite

Acidic red soil from a forest in Jiangxi Province was selected to isolate aluminum (Al)-resistant microbes, from which eight fungi were isolated. Two strains (S4 and S7) were found to be extremely tolerant to Al concentrations of up to 550 mmol L -1 and could grow at low pH levels (3.20-3.11). Morphological and 26S rDNA sequence analyses indicated that strain S4 belonged to Eupenicillium, while strain S7 was an unclassified Trichocomaceae. Further investigation showed that both strains were endowed with the ability to resist Al; strain S4 accumulated such a substantial amount of Al that its growth was limited to a larger extent than strain S7. The lower amounts of Al adsorbed in the mycelium and the much larger amounts of Al retained in the medium, in addition to the color change of the culture solution, implied that these two strains may resist Al by preventing Al from entering the cell and by chelating Al by secreting unique metabolites outside of the cell.

show abstract

Phosphate solubilization potential and stress tolerance of Eupenicillium parvum from tea soil

Cited by 80 publications

References 14 publications

Response of Cold-Tolerant Aspergillus spp. to Solubilization of Fe and Al Phosphate in Presence of Different Nutritional Sources

Response of Cold-Tolerant Aspergillus spp. to Solubilization of Fe and Al Phosphate in Presence of Different Nutritional Sources

Phosphate solubilization by fungi with nematicidal potential

Isolation, Identification and Characterization of Two Aluminum-Tolerant Fungi from Acidic Red Soil

Contact Info

Product

Resources

About