Native Trichoderma harzianum strains from Argentina produce indole-3 acetic acid and phosphorus solubilization, promote growth and control wilt disease on tomato (Solanum lycopersicum L.)

Bader, Araceli Natalia; Salerno, Graciela L.; Covacevich, Fernanda; Consolo, Verónica Fabiana

doi:10.1016/j.jksus.2019.04.002

Cited by 96 publications

(68 citation statements)

References 23 publications

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“…The strain produced indole acetic acid (21.14 μg mL − 1 ). Improved shoot and root biomass, leaf area, and leaf numbers were observed in Solanum lycopersicum L. plants treated with fungi, compared to uninoculated plants (Bader et al 2020). Many novel microorganisms are recently reported as listed above which can solubilize phosphorus to a wide range and produce phytohormones.…”

Section: Phosphate-solubilizing Microorganisms (Psms)mentioning

confidence: 99%

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Rawat

Das

Shankhdhar

et al. 2020

J Soil Sci Plant Nutr

338

130

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Phosphorus is the second most critical macronutrient after nitrogen required for metabolism, growth, and development of plants. Despite the abundance of phosphorus in both organic and inorganic forms in the soil, it is mostly unavailable for plant uptake due to its complexation with metal ions in the soil. The use of agrochemicals to satisfy the demand for phosphorus to improve crop yield has led to the deterioration of the ecosystem and soil health, as well as an imbalance in the soil microbiota. Consequently, there is a demand for an alternate cost-effective and eco-friendly strategy for the biofortification of phosphorus. One such strategy is the application of phosphate-solubilizing microorganisms which can solubilize insoluble phosphates in soil by different mechanisms like secretion of organic acids, enzyme production, and excretion of siderophores that can chelate the metal ions and form complexes, making phosphates available for plant uptake. These microbes not only solubilize phosphates but also promote plant growth and crop yield by producing plant-growth-promoting hormones like auxins, gibberellins, and cytokinins, antibiosis against pathogens, 1-aminocyclopropane-1-carboxylic acid deaminase which enhances plant growth under stress conditions, improving plant resistance to heavy metal toxicity, and so on. Pyrroloquinoline quinine (pqq) and glucose dehydrogenase (gcd) are the representative genes for phosphorus solubilization in microorganisms. The content presented in this review paper focuses on different mechanisms and modes of action of phosphate-solubilizing microorganisms, their contribution to phosphorus solubilization, growth-promoting attributes in plants, and the molecular aspects of phosphorus solubilization.

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Section: Phosphate-solubilizing Microorganisms (Psms)mentioning

confidence: 99%

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Rawat

Das

Shankhdhar

et al. 2020

J Soil Sci Plant Nutr

338

130

View full text Add to dashboard Cite

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“…Accordingly, Saber et al [48] described IAA production of T. harzianum isolates that were 10 times lower than that of T. aggressivum f. europaeum and T. saturnisporum assessed in this study. Bader et al [51] reported that IAA production ranged from 13.38 to 21.14 µg mL −1 in T. brevicompactum, T. gamsii and T. harzianum. Diánez et al [16] described a highly similar IAA production for T. saturnisporum; therefore, the in vitro production capacity of IAA was preserved despite maintaining the isolate in the laboratory for 10 years.…”

Section: Discussionmentioning

confidence: 99%

Role of Trichoderma aggressivum f. europaeum as Plant-Growth Promoter in Horticulture

et al. 2020

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The main objective of this study was to determine the capacity of Trichoderma aggressivum f. europaeum to promote pepper and tomato seedling growth compared to that of T. saturnisporum, a species recently characterised as a biostimulant. Consequently, in vitro seed germination and seedling growth tests were performed under commercial plant nursery conditions. Additionally, the effects of different doses and a mixture of both species on seedling growth under plant nursery and subsequently under greenhouse conditions were determined. Furthermore, mass production of spores was determined in different substrates, and their siderophore and indole acetic acid production and phosphate (P) solubilisation capacity were also determined. Direct application of Trichoderma aggressivum f. europaeum to seeds in vitro neither increases the percentage of pepper and tomato seed germination nor improves their vigour index. However, substrate irrigation using different doses under commercial plant nursery conditions increases the quality of tomato and pepper seedlings. Tomato roots increased by 66.66% at doses of 106 spores per plant. Applying T. aggressivum f. europaeum or T. saturnisporum under plant nursery conditions added value to seedlings because their growth-promoting effect is maintained under greenhouse conditions up to three months after transplantation. The combined application of the two species had no beneficial effect in relation to that of the control. The present study demonstrates the biostimulant capacity of T. aggressivum f. europaeum in pepper and tomato plants under commercial plant nursery and greenhouse conditions.

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“…Trichoderma species from treatments W-rot and CC/Sb were genetically identified as Trichoderma tomentosum and Tomato growth response to single and dual inoculation with selected AMF and Trichoderma indigenous from soybean crops Significant increases in SDW, SFW, RFW and leaf area of tomato plants at 45 DAS were found as a result of single and/or dual inoculation with AMF-Trichoderma (Figure 1), as compared to the Control (Table 3). Similarly, Bader et al (2019) showed increases up to 300% in tomato plants growth inoculated with T. harzianum indigenous from Argentina. Our results showed that inoculation responses (IR) were always positive, with a marked increase (above 60%) resulting from inoculation with Trichoderma strains.…”

Section: Amf and Trichoderma Indigenous Selection From Soybean Systemmentioning

confidence: 92%

Indigenous arbuscular mycorrhiza and Trichoderma from systems with soybean predominance can improve tomato growth

Commatteo¹,

Consolo²,

Barbieri³

et al. 2019

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In the last decades, there has been a tendency towards sustainable agriculture. Following this trend, edaphic fungi as Trichoderma and arbuscular mycorrhizal fungi (AMF) could increase plant growth contributing to diminish agricultural chemical supply. However, little information exists in current research regarding the possible effects of alternative practices to soybean monoculture systems on fungal groups that could contribute to plant health and/or productivity. Thus, our objective was to assess changes in the abundance and diversity of indigenous AMF and Trichoderma from a long-term field experiment located in the Argentinean Pampas, in order to test the effect of alternative practices to soybean monoculture. The fungal ability to promote the growth of crops, such us tomato plant was also tested. Soil samples were collected from a soybean monoculture system (Sb), a system including cover crop (Avena sativa) followed by soybean (CC/Sb) and a system including rotations (rot) of Soybean-Maize-Wheat crops CC/Sb-rot, M-rot and W-rot, respectively. Highest AMF and Trichoderma abundance was found at W-rot and M-rot systems, and highest AMF diversity was found at W-rot and CC systems. Furthermore, highest mycorrhizal colonization was found at CC/Sb and W-rot systems. Inoculated plants with single AMF consortium or with Trichoderma strains showed significant increases in comparison with the control. Dual inoculation increased tomato plant growth as compared to the control, and evidence of synergism was found by increases in shoot and root growth. Our results show that dual inoculation with indigenous AMF and Trichoderma from alternative crop systems to soybean monoculture could play an important role in tomato plant growth. This information could be useful to decrease production costs and environmental impacts.

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Native Trichoderma harzianum strains from Argentina produce indole-3 acetic acid and phosphorus solubilization, promote growth and control wilt disease on tomato (Solanum lycopersicum L.)

Cited by 96 publications

References 23 publications

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Phosphate-Solubilizing Microorganisms: Mechanism and Their Role in Phosphate Solubilization and Uptake

Role of Trichoderma aggressivum f. europaeum as Plant-Growth Promoter in Horticulture

Indigenous arbuscular mycorrhiza and Trichoderma from systems with soybean predominance can improve tomato growth

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