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Boby, V. U.; Bagyaraj, D. J.

doi:10.1023/a:1023238908028

Cited by 59 publications

(3 citation statements)

References 19 publications

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“…Thus the isolate which showed its potential role in suppressing the in vitro growth of the pathogen, was also found to exhibit promising effect in the field condition. These results are relatively consistent with earlier studies showing the effectiveness of formulation of biocontrol agents in reducing incidence of fungal diseases of plants (Boby andBagyaraj 2003, Khan andSinha 2005).…”

Section: Discussionsupporting

confidence: 92%

Antagonistic potentials of Trichoderma Spp. against fruit rot of custard apple caused by Phoma ligam

Ojha

Chakraborty²,

Chatterjee

2012

J bio-sci.

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Context: Custard-apple (Annona squamosa Linn.) is a popular tropical fruit and fruit-rot disease caused by Phoma lingam leads to considerable qualitative and quantitative damages to the fruit in the area under study. Objective: Studies were conducted to investigate the antagonistic potential of five Trichoderma spp. namely, T. harzianum, T. hamatum, T. lignorum, T. reesei and T. viride against in vitro growth of the pathogen followed by field experiments. Materials and Methods: Dual culture plate, closed petriplate and food poisoning technique were followed in order to ascertain the antagonistic potential of the five species of Trichoderma. Hyphal interaction between the pathogen and T. viride was studied by collecting mycelial samples from the interaction zone of dual culture plate and was processed for scanning electron microscope. Plants with infected fruits were sprayed with spore suspension of T. viride and two commercial bioformulations of T. viride viz. Trichofix and Trichoguard for three times at a dose of 0.1, 0.5 and 1.0% prepared in distilled water. Results: All the Trichoderma species more or less effectively inhibited the growth of the pathogen through mycoparasitism, production of volatile and non-volatile metabolites. Scanning electron microscopic (SEM) micrographs revealed that hyphal interaction between P. lingam and T. viride leads to lysis of the pathogenic mycelium by the antagonist. Field experiments with spore suspension of T. viride and Trichofix and Trichoguard significantly reduced fruit rot incidence of custard-apple. Conclusion: The results of the current study indicate that adoption of biocontrol based disease management programmes can be effectively utilized against similar fruit diseases. DOI: http://dx.doi.org/10.3329/jbs.v19i0.12995 J. bio-sci. 19: 15-21, 2011

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Section: Discussionsupporting

confidence: 92%

Antagonistic potentials of Trichoderma Spp. against fruit rot of custard apple caused by Phoma ligam

Ojha

Chakraborty²,

Chatterjee

2012

J bio-sci.

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“…However, a critical issue is the continued occupation of these beneficial microbes within rhizosphere soil over time. Several functionally oriented microbes have been introduced to the rhizosphere of crops, such as rhizobia, Azospirillum , mycorrhizal fungi, and other biocontrol agents ( 8 , 9 ). Microbes are typically introduced to a plant rhizosphere through root irrigation or are applied in concert with other substrates, such as organic fertilizer.…”

Section: Introductionmentioning

confidence: 99%

Learning from Seed Microbes: Trichoderma Coating Intervenes in Rhizosphere Microbiome Assembly

Xie,

Yang,

Liu

et al. 2023

Microbiol Spectr

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“…The common ones are triterpene saponins, steroid saponins, alkaloids, phenolics, etc. AMF plants are able to alter the accumulation of phenolics in the plant by increasing the uptake of P [14] . In response to biotic stresses and to improve plant adaptations, mycorrhizalization can increase the content of plant alkaloids such as camptothecin [15] , in studies on terpenoids, it was found that mycorrhizal symbiosis facilitates the expression of genes on the terpenoid synthesis pathway in medicinal plants [16,17] .…”

Section: Introductionmentioning

confidence: 99%

Effects of Arbuscular Mycorrhizal Fungi on the Physiology and Saponin Synthesis of Paris polyphylla var. yunnanensis at Different Nitrogen Levels

Huang

Qian

et al. 2023

j. of bot. res.

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Arbuscular mycorrhizal fungi (AMF) are important members of the plant microbiome and affect the uptake and transfer of mineral elements by forming a symbiotic relationship with plant roots. Nitrogen (N), as an important mineral element, can directly affect plant growth and development at different N levels. It has been confirmed that inoculation with AMF can improve the efficiency of N utilization by plants. However, there are still fewer reports on the dynamic relationship between arbuscular mycorrhizal and plant secondary metabolites at different nitrogen levels. In this experiment, the physiological indexes and genes related to saponin synthesis were determined by applying different concentration gradients of nitrogen to the medicinal plant P. polyphylla var. yunnanensis infested by AMF as the test material. It was found that nitrogen addition increased the biomass, chlorophyll content, and nutrient content of above- and below-ground plant parts and increased the content of saponin content of P. polyphylla var. yunnanensis to some extent, but AMF inoculation increased the saponin content of P. polyphylla var. yunnanensis more significantly. AMF inoculation also promoted the expression of genes related to the saponin synthesis pathway, including 3-hydroxy-3-methylglutaryl coenzyme A synthase (HMGS), squalene epoxidase 1 (SE1), and cycloartenol synthase (CAS), which is in according with the accumulation of saponin in plants. It also may increase the saponin content of AMF plants by altering the expression of P450s and UGTs related to saponin synthesis.

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Untitled

Cited by 59 publications

References 19 publications

Antagonistic potentials of Trichoderma Spp. against fruit rot of custard apple caused by Phoma ligam

Antagonistic potentials of Trichoderma Spp. against fruit rot of custard apple caused by Phoma ligam

Learning from Seed Microbes: Trichoderma Coating Intervenes in Rhizosphere Microbiome Assembly

Effects of Arbuscular Mycorrhizal Fungi on the Physiology and Saponin Synthesis of Paris polyphylla var. yunnanensis at Different Nitrogen Levels

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