Effect of Trichoderma harzianum on tomato plant growth and its antagonistic activity against Phythium ultimum and Phytopthora capsici

Uddin, Muhammad Nazir; Rahman, Ubaid ur; Khan, Wajid; Uddin, Nisar; Muhammad, Muhammad

doi:10.1186/s41938-018-0032-5

Cited by 14 publications

(10 citation statements)

References 22 publications

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“…These fungi are known not only as biocontrol agents, but they also support plant growth and root development and induce plant defense mechanisms [47]. There are numerous reports in the literature about the beneficial effects of Trichoderma on tomato growth and yielding, for example Uddin et al [48] or Herrera-Téllez et al [49]. However, in the presented studies, no positive effect on the yield of tomato was found in the substrates highly colonized by these fungi (Table 10).…”

Section: Microbial Analyses Of Drainage Watersmentioning

confidence: 70%

Parameters of Drainage Waters Collected during Soilless Tomato Cultivation in Mineral and Organic Substrates

et al. 2020

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The aim was to determine the suitability of various substrates for application in a closed system of soilless tomato cultivation, based on the potential fitness of drainage waters from these substrates for recirculation. Four substrates were used: rockwool, coir substrate, lignite substrate (Carbomat) and biodegradable organic substrate (Biopot). Tomato plants grown in these substrates were fertilized with the same amount of nutrient solution, containing the same concentration of nutrients. The characteristics of drainage water from these substrates were analyzed during cultivation. The highest amount of drainage water was collected from the lignite substrate Carbomat. However, these leachates showed good properties for further recirculation: low electro conductivity and turbidity, high nutrient content, moderate microbial load with high population of Trichoderma fungi, and being beneficial for plant growth. Moreover, Carbomat produced the highest tomato yield compared to other substrates. This indicates that this organic substrate is an efficient alternative to rockwool and its drainage water may be reused in a recirculation system. On the contrary, the drainage water from the Biopot substrate showed the worst qualities: high pH and low EC, low concentration of nitrate nitrogen and phosphorus, very high turbidity and a high number of microorganisms. These parameters do not qualify Biopot drainage waters for reuse.

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Section: Microbial Analyses Of Drainage Watersmentioning

confidence: 70%

Parameters of Drainage Waters Collected during Soilless Tomato Cultivation in Mineral and Organic Substrates

et al. 2020

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“…and T. harzianum led to an increase in root and shoot weight, in agreement with what was verified in the present study. In the same sense, Mwangi et al (2011) and Uddin et al (2018) reported that treatments with T. harzianum promoted the growth of tomato plants, even in the presence of pathogens.…”

Section: Effect Of Trichoderma Spp On the Hypocotyl Of Tomato Seedlingsmentioning

confidence: 81%

Trichoderma Activity in Seed Germination, Promoting Seedling Growth and Rhizocompetence in Tomato Plants

Montalvão¹,

Marques²,

Silva³

et al. 2020

JAS

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Tomato is one of the most important plant species from an economic and social point of view. Nowadays, there is a growing interest in the use of beneficial microorganisms in agriculture, and some of them are being commercialized as biopesticidal and biofertilizer formulations. Therefore, the aim of this study was to evaluate the ability of twenty (20) Trichoderma isolates to stimulate seed germination, colonize the roots, and promoting growth on tomato seedlings. In laboratory tests, it was possible to observe germination induction and longer root length, in addition to greater length of hypocotyls. However, in some cases, the presence of cotyledon lesions in the seedlings was observed, but without interference in the number and vigor of seedlings from inoculated seeds. In the greenhouse, the action of isolates as growth promoters was verified, due to the increase in the weight and length of roots and the aerial part of tomato plants. Twelve isolates were selected for the rhizocompetence assay, in which the ability to colonize the rhizosphere and also the plant rhizoplane was observed. None of the tests showed negative results in the evaluated parameters.

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“…Moreover, previous studies have reported that Trichoderma spp. could promote the growth of bitter gourds, bottle gourds, cucumbers, peppers, rice, and tomato seedlings (Chagas et al, 2015;Kotasthane et al, 2015;Marin-Guirao et al, 2016;Herrera-Parra et al, 2017;Uddin et al, 2018). Additionally, Trichoderma spp.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of a Newly Identified Endophytic Fungus, Trichoderma phayaoense for Plant Growth Promotion and Biological Control of Gummy Stem Blight and Wilt of Muskmelon

et al. 2021

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Gummy stem blight and wilt are known to cause enormous losses to the global production of muskmelon (Cucumis melo). In this study, the potential of endophytic fungi isolated from leaves of Siam weed (Chromolaena odorata) was investigated for the inhibition of mycelial growth of Stagonosporopsis cucurbitacearum and Fusarium equiseti. Twenty-one fungal isolates were obtained. The results indicated that a fungal isolate UP-L1I3 displayed the highest percentage in terms of inhibition of the mycelial growth of F. equiseti and S. cucurbitacearum at 90.80 and 81.60%, respectively. Consequently, this isolate was selected for its potential ability to promote plant growth and control gummy stem blight and wilt in muskmelon seedlings. Morphological and multilocus phylogenetic analyses revealed that the isolate UP-L1I3 was a new species that has been described herein as Trichoderma phayaoense. Pathogenicity test confirmed that F. equiseti and S. cucurbitacearum were the cause of gummy stem blight and wilt disease in muskmelon seedlings, respectively. However, no disease symptoms were observed in seedlings inoculated with T. phayaoense. It was found that T. phayaoense could be used preventively in muskmelon seedlings that were inoculated with F. equiseti and S. cucurbitacearum, which could then reduce the impact on the disease severity index. T. phayaoense was also effective in improving plant development by increasing plant height, as well as shoot and root dry weight values. Moreover, T. phayaoense could effectively increase weight, diameter, and the circumference and total soluble solid of fruit without having a negative effect on fruit quality parameters. Additionally, T. phayaoense was able to tolerate a commonly applied fungicide (metalaxyl) in recommended dosages for field applications.

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Effect of Trichoderma harzianum on tomato plant growth and its antagonistic activity against Phythium ultimum and Phytopthora capsici

Cited by 14 publications

References 22 publications

Parameters of Drainage Waters Collected during Soilless Tomato Cultivation in Mineral and Organic Substrates

Parameters of Drainage Waters Collected during Soilless Tomato Cultivation in Mineral and Organic Substrates

Trichoderma Activity in Seed Germination, Promoting Seedling Growth and Rhizocompetence in Tomato Plants

Evaluation of a Newly Identified Endophytic Fungus, Trichoderma phayaoense for Plant Growth Promotion and Biological Control of Gummy Stem Blight and Wilt of Muskmelon

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