Significance of secondary metabolites and enzymes secreted by Trichoderma atroviride isolates for the biological control of Phomopsis canker disease

Anita, Sita Heris; Ponmurugan, P.; Babu, Ramesh

doi:10.5897/ajb12.599

Cited by 20 publications

(9 citation statements)

References 18 publications

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“…Similar effect have been observed by Anita et al (2012) when studying the effect of secondary metabolites secreted by T. atroviride at different concentrations and found rapid decreasing observed in the linear growth of the pathogen with increase concentration of the metabolites. Effect of filtrate concentrations of T. harzianum on mycelial growth of test pathogenic fungi was revealed that the aqueous extracts of T. harzianum reduced the mycelial growth of the most target fungal pathogens.…”

Section: Fig (1)supporting

confidence: 67%

Antagonism of Trichoderma harzianum and Clonostachys rosea against fungi associated with grapevine decline in Kurdistan region - Iraq

Haleem

Saedo

Abdullah

2016

SJUOZ

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Abstract:This study was carried out to test in vitro the efficiency of Clonostachys rosea and Trichoderma harzianum as bicontrol agents against fungi isolated from declining grapevine trees in Iraq. In vitro assays showed a good antagonistic activity of C. rosea against the colony growth of Phaeoacremonium aleophilum and Cylindrocarpon destructans; the values of x coefficient were 0.90 of each with significance differences comparing with antagonism behavior against B. parva (x=1.43). T.harzianum showed highly response against the growth of all tested fungi with x coefficient ranged between 0.50 -0.65; which was higher than that of C.rosea. The test revealed significant growth inhibition of C.rosea against P.aleophilum, which were 46.60%, 55.17%, 74.33% in the concentrations 5%, 10%, and 15% respectively. No inhibition appeared in the growth of both Botryosphaeria parva and Macrophomina phaseolina .The filtrate of T. harzianum decreased the growth of P. aleophilum to 19% and 19.83% with the filtrate concentrations 10% and 15% respectively. B.parvawas also affected by the concentration 10% and 15% of T harzianum, the inhibition reached to 12.66% and 12.82% respectively. The inhibition in the growth of M. phaseolina ranged between 20 -28%, but in the C. destrcuctans have recorded the lowest inhibition percentages in the concentration 5% (5.25%) and 10% (6.91%).

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Section: Fig (1)supporting

confidence: 67%

Antagonism of Trichoderma harzianum and Clonostachys rosea against fungi associated with grapevine decline in Kurdistan region - Iraq

Haleem

Saedo

Abdullah

2016

SJUOZ

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“…One defense mechanism is the production of metabolites with anti-nematode activity. Anita et al [ 74 ] found that the accumulation of phenolics and proteins contributed to the control of root knot nematodes. The mechanism of action of flavonoids such as glycine I against nematodes has been elucidated, as they repel J2 juveniles of M. incognita and inhibit their respiration.…”

Section: Discussionmentioning

confidence: 99%

Green iron oxide nanoparticles and magnetic nanobiochar: enhancing tomato performance, phytochemicals, and root-knot nematode resistance

Mahmoud,

Khader,

Mahmoud

2024

BMC Plant Biol

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Background Green nanoparticles are considered to be an effective strategy for improving phytochemicals and raising productivity in soil infected by root-knot nematodes. This work aims to understand the characteristics of certain nanomaterials, including non-iron (nFe), green non-iron (GnFe), and green magnetic nanobiochar (GMnB), and the effect of adding them at 3 and 6 mg kg− 1 on phytochemicals and tomato (Solanum lycopersicum) plant growth in soils infected by root-knot nematodes. Results Spectroscopic characterization of nanomaterials showed that nFe, GnFe, and GMnB contained functional groups (e.g., Fe-O, S-H, C-H, OH, and C = C) and possessed a large surface area. Application of GMB at 6 mg kg− 1 was the most efficient treatment for increasing the phytochemicals of the tomato plant, with a rise of 123.2% in total phenolic, 194.7% in total flavonoids, 89.7% in total carbohydrate, 185.2% in total free amino acids, and 165.1% in total tannin compared to the untreated soil. Tomato plant growth and attributes increased with increasing levels of soil nano-amendment in this investigation. The addition of GnFe3 and GnFe6 increased the reduction of root galls of root-knot nematodes by 22.44% and 17.76% compared with nFe3 and nFe6, respectively. The inclusion of the examined soil nano-amendments increased phytochemicals and reduced the total number of root-knot nematodes on tomato plants at varying rates, which played a significant role in enhancing tomato growth. Conclusions In conclusion, treating tomato plants with GnFe or GMnB can be used as a promising green nanomaterial to eliminate root-knot nematodes and increase tomato yield in sandy clay loam soil.

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“…Likewise, Dutta et al (2012) also found that the use of Pseudomonas aeruginosa managed brown rot disease of tea and improve resistance of tea plants against this disease (Dutta et al, 2012). Anita et al (2012) also documented that T. atroviride produce the secondary metabolites and enzymes that induce the resistance against the Phomopsis canker (Anita et al, 2012). The synthesis of various enzymes including amylase, cellulase, chitinase, polygalacturonase and protease is linked with the antagonist activities of bio-control agents.…”

Section: Glomus Mosseae Glomus Intraradicesmentioning

confidence: 99%

Insights into the functional role of tea microbes on tea growth, quality and resistance against pests and diseases

ZHANG

LONG

HUO

et al. 2022

Not Bot Horti Agrobo

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Tea is an economical and most widely used beverage across the globe owing to its unique fragrance and flavor. Plant microbe interaction has emerged as an important topic which got the attention of scientists to improve plant performance. Tea microbes remained a prominent research topic for scientists over the years as tea microbes helps in nutrient cycling and stress management which in turn improve the tea growth, yield and quality. The roots of tea plants are colonized by various microbes including arbuscular mycorrhizal fungi (AMF), bacterial communities, and endophytes increase root growth, development and nutrient uptake which in turn improve tea growth, yield and quality. These microbes also increase the concentration of nutrients, amino acids, soluble proteins, flavonoids, catechuic acid, glucose, fructose, sucrose contents caffeine, and polyphenols concentration in tea plants. Besides this, these microbes also protect the tea plants from harmful pest and diseases which in turn leads to an appreciable improvement in plant growth and development. The most important goal of any farming system is to establish a system with production of maximum food while minimizing impacts on the environment. The present review article highlights the role of various microbes in improving the growth, yield and quality of tea plants. In addition, we also discussed the research gaps to improve our understanding about the role of tea microbes in improving tea growth, yield, pest and diseases resistance. We believe that this review will provide a better insight into the existing knowledge of tea microbes in improving tea growth and yield.

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Significance of secondary metabolites and enzymes secreted by Trichoderma atroviride isolates for the biological control of Phomopsis canker disease

Cited by 20 publications

References 18 publications

Antagonism of Trichoderma harzianum and Clonostachys rosea against fungi associated with grapevine decline in Kurdistan region - Iraq

Antagonism of Trichoderma harzianum and Clonostachys rosea against fungi associated with grapevine decline in Kurdistan region - Iraq

Green iron oxide nanoparticles and magnetic nanobiochar: enhancing tomato performance, phytochemicals, and root-knot nematode resistance

Insights into the functional role of tea microbes on tea growth, quality and resistance against pests and diseases

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