Dissolving mechanism of strain P17 on insoluble phosphorus of yellow-brown soil

Zhong, Chunlong; Cao, Guangxiang; Huang, Weiyi; Xing-she, Luan; Yang, Yongyi

doi:10.1590/s1517-83822014000300025

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…In addition, Garcia Lopes (2017) demonstrated that the type of soil may be related to the activity of microorganisms 68 . The concentration of P applied to the different soil was not affected, but its efficiency was affected by the physical and chemical properties of the soil 69,70 .…”

Section: Discussionmentioning

confidence: 97%

Phosphorus-solubilizing Trichoderma spp. from Amazon soils improve soybean plant growth

Bononi

Chiaramonte

Pansa

et al. 2020

Sci Rep

148

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Acidic soils rapidly retain applied phosphorus fertilizers and consequently present low availability of this nutrient to plants. the use of phosphate-solubilizing microorganisms to help plant phosphorus (P) absorption is a promising sustainable strategy for managing P deficiencies in agricultural soils. Trichoderma strains have been one of the most studied filamentous fungi for improving the production and development of several crop species mainly due to their capability for symbiotic associations and their ability to control soil-borne plant diseases. Thus, this work sought to bioprospect Trichoderma strains from the Amazon rainforest capable of solubilizing/mineralizing soil phosphate and promoting soybean growth. Soybean plants inoculated with selected Trichoderma strains were cultivated in soil under greenhouse conditions and under a gradient of rock phosphate and triple superphosphate. As a result, 19.5% of the isolated Trichoderma strains were able to solubilize phosphate. In addition, those strains produced different organic acids during the solubilization process. Trichoderma spp. strains showed positive responses in the promotion of soybean growth-from 2.1% to 41.1%-as well as in the efficiency of P uptake-up to 141%. These results reveal the potential of Trichoderma spp. from the Amazon biome as promising biofertilizer agents.The high demand for fertilizers used in Brazilian agriculture is a result of the growing population, which necessitates an increase in food production 1 . Brazil is the second-largest supplier of food and agricultural products and expected to be the leading producer of food to meet global demand in the near future 2 . Thus, applications of fertilizer are a routine activity in agricultural production as an attempt to promote crop growth to increase productivity. The requirement of fertilizers in the field results in the accumulation of those inputs in soils and water and, therefore, environmental pollution, causing problems to human and animal health 1,3 . In the future, Brazilian agriculture has to identify alternatives to reduce its dependence on chemical fertilizers while at the same time functioning in a lucrative and more sustainable way 4 .A range of nutrients is important for plant growth 5 , but the ones that limit agricultural production the most are nitrogen and phosphorus, which are important in the initial development of the plant 6,7 . Nitrogen fertilization in Brazil has decreased significantly with use of symbiotic associations with nitrogen-fixing bacteria 8,9 . However, Brazilian agriculture continues to depend on chemical phosphate fertilization 4 . The role of P in the plant is associated with three essential biochemical processes: energy production, respiration, and photosynthesis. P is also involved in enzymatic processes and is a component of nucleic acids and cell membranes [10][11][12][13] . Phosphorus is generally found in the lowest concentration in the soil, 0.01%, compared to 0.14% of nitrogen, mainly in tropical and subtropical regions 14,15 . Although ...

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Section: Discussionmentioning

confidence: 97%

Phosphorus-solubilizing Trichoderma spp. from Amazon soils improve soybean plant growth

Bononi

Chiaramonte

Pansa

et al. 2020

Sci Rep

148

View full text Add to dashboard Cite

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“…Acidification of the culture medium is an effective mechanism for solubilization capacity (Mendes et al, 2014). Some microorganisms excrete inorganic acids, and organic acids and produce phosphatase enzymes to solubilize phosphorus (Zhong et al, 2014). Thus, the isolate UFT-21 tested in this experiment reduced the pH value compared with the initial pH in the medium, varying between 6.8 and 5.9 after eight days of growth (Table 1).…”

Section: Methodsmentioning

confidence: 89%

<i>Trichoderma asperellum</i> (Samuels, Lieckf & Nirenberg) como promotor de crescimento em <i>Enterolobium contortisiliquum</i> (Vell) Morong

Chagas Junior,

Dias,

Martins

et al. 2024

Ciênc. Florest.

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Os microrganismos promotores de crescimento vegetal representam uma alternativa eficiente e viável para a produção de mudas florestais. Dentre eles, destaca-se o gênero Trichoderma que promove o crescimento em planta pela síntese do ácido indol acético, solubilização de fosfato e micronutrientes. Diante disso, o presente estudo objetivou avaliar a influência de Trichoderma asperellum (Samuels, Lieckf & Nirenberg) no desenvolvimento inicial das mudas de tamboril. Foram feitas inoculações com T. asperellum, sendo utilizadas as doses de 0 (testemunha), 5, 9, 14 e 18 g de inoculante por litro de substrato, em delineamento inteiramente casualizado com cinco tratamentos e seis repetições cada. Foram analisadas altura, massa fresca do caule, massa fresca da raiz, massa fresca total, massa seca de parte aérea, massa seca de raiz, massa seca total e índice de qualidade de Dickson (IQD). A inoculação com T. asperellum apresentou eficiência como promotor de crescimento em mudas de tamboril, em diferentes doses, nos parâmetros altura - dose 10,76 g, massa fresca da parte aérea - dose 15,76 g, massa fresca da raiz - dose 11,04 g, massa fresca total - dose 12,14 g, massa seca parte aérea - dose 11,5 g, massa seca da raiz - dose 10,27 g e massa seca total - dose 10,58 g. O IQD teve um incremento de 35% em relação à testemunha. Assim, com a inoculação de Trichoderma foi estimada uma máxima eficiência técnica nas doses entre 10 e 12 g L-1 de substrato, evidenciando efeito no desenvolvimento das mudas de tamboril.

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Effect of acid phosphatase produced by Trichoderma asperellum Q1 on growth of Arabidopsis under salt stress

Zhao

Liu

Zhang

et al. 2017

Journal of Integrative Agriculture

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Salt stress is a major environmental factor that inhibits crop growth. Trichoderma spp. are the most efficient biocontrol fungi and some of the strains can stimulate plant growth. Phosphate solubilization is known as one of the main mechanisms in promoting plant growth, but the underlying mechanisms of phosphate solubilization in the salinity still need to be explored. The T. asperellum Q1 isolated and identified in our lab is a beneficial rhizosphere biocontrol fungus with a high phosphate solubilization activity. It could produce acid and alkaline phosphatases when using insoluble organic phosphorus as the sole phosphorus source, the salt stress increased the P-solubilization ability of the strain and the activities of the two enzymes. Furthermore, an acid phosphatase was purified from the fermentation broth by ammonium sulphate precipitation, ion-exchange, and gel filtration chromatography. Its molecular weight was 55 kDa as determined by SDS-PAGE. The purified acid phosphatase was used to investigate growth performance of Arabidopsis thaliana by plate assay and the result showed that it contributed to Arabidopsis growth by transforming organic phosphate into a soluble inorganic form under salt stress. To our knowledge, this is the first report of acid phosphatase purification from T. asperellum and its function in regulation of plant growth under salt stress.

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Dissolving mechanism of strain P17 on insoluble phosphorus of yellow-brown soil

Cited by 4 publications

References 9 publications

Phosphorus-solubilizing Trichoderma spp. from Amazon soils improve soybean plant growth

Phosphorus-solubilizing Trichoderma spp. from Amazon soils improve soybean plant growth

<i>Trichoderma asperellum</i> (Samuels, Lieckf & Nirenberg) como promotor de crescimento em <i>Enterolobium contortisiliquum</i> (Vell) Morong

Effect of acid phosphatase produced by Trichoderma asperellum Q1 on growth of Arabidopsis under salt stress

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