Induction of enzymatic scavengers of active oxygen species in rice in response to infection by Rhizoctonia solani

Paranidharan, V.; Palaniswami, A.; Vidhyasekaran, P.; Velazhahan, R.

doi:10.1007/s11738-003-0041-0

Cited by 23 publications

(8 citation statements)

References 28 publications

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“…The highest POX activity was observed in the plants infected with R. solani (R and S + R groups). In agreement with our results, Paranidharan et al [72] found increased POX activities in rice in response to infection by Rhizoctonia solani. According to these results, we can speculate that increased lignin synthesis during both salt stress and pathogen infection in order to establish an apoplastic barrier and to make the cell wall less permeable to water loss might also be the case in our study [73].…”

Section: Discussionsupporting

confidence: 94%

The Effect of Trichoderma citrinoviride Treatment under Salinity Combined to Rhizoctonia solani Infection in Strawberry (Fragaria x ananassa Duch.)

et al. 2021

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Trihoderma citrinoviride protects plants from diseases by functioning as antagonists of many pathogenic fungi or by triggering the antioxidant defense system in plants. In the present study, to uncover the possible alleviative role of Trichoderma against salinity and Rhizoctonia solani infection, strawberry plants were pretreated Trichoderma citrinoviride and then subjected to salinity, R. solani and combined salinity and R. solani. The effect of T. citrinoviride on the alleviation of the effects of salt stress and Rhizoctonia solani infection was investigated by analysing leaf dry weight, PSII efficiency, and the activity of some antioxidant enzymes in the leaves of strawberry plants. T. citrinoviride improved competitive capability against salinity and R. solani infection. It showed 79% inhibition of the growth of pathogen R. solani. T. citrinoviride reduced 63% of the severity of disease in the leaves. Trichoderma pretreatment maximized plant dry weight. The T. citrinoviride-pretreated plants showed higher levels of PSII efficiency (Fv/Fm). Decreased lipid peroxidation and H2O2 accumulation compared to untreated seedlings under salt stress and R. solani infection was observed. Trichoderma-pretreated and –untreated plants respond differently to salt stress and R. solani infection by means of antioxidant defense. As compared to untreated seedlings, treated seedlings showed significantly lower activities of antioxidant enzymes, superoxide dismutase (SOD), peroxidase (POX), cell wall peroxidase (CWPOX) under salt stress and R. solani infection, indicating that treated seedlings might sense lower stress as compared to untreated seedlings. The study reports the effective adaptive strategy and potential of T. citrinoviride in alleviating the negative impact of salt stress and R. solani infection in strawberry.

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Section: Discussionsupporting

confidence: 94%

The Effect of Trichoderma citrinoviride Treatment under Salinity Combined to Rhizoctonia solani Infection in Strawberry (Fragaria x ananassa Duch.)

et al. 2021

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“…In the present findings in response to R. solani and T. virens separately, the activity of catalase increased at 1 dpi and 4 dpi in the resistant variety, whereas it was increased only at 4 dpi in the susceptible variety, but the combined response of these two upregulated the expression of catalase only in the resistant variety at 1 dpi and 4 dpi. The present findings are supported by the earlier observations that the catalase activity significantly increased in rice leaf sheaths at 2 days after inoculation with R. solani and reached maximum at 5 days after inoculation (Paranidharan et al 2003). Similarly, increased catalase activity was observed in inoculated apple fruits in combination of T. virens and Penicillium expansum in comparison with healthy control at all days of observations and the highest activity was noted at 6 days after inoculation (Bordbar et al 2010).…”

Section: Discussionsupporting

confidence: 91%

Expression of defense-related genes in mung bean varieties in response to Trichoderma virens alone and in the presence of Rhizoctonia solani infection

2018

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Web blight/wet root rot caused by Rhizoctonia solani is one of the major constraints for mung bean (Vigna radiata) production. Growing of resistant varieties and use of biocontrol agents are the feasible options available to manage the disease. The present study was conducted to determine the variation in the expression of various defense-related genes in susceptible and resistant mung bean varieties in response to biocontrol agent Trichoderma virens and R. solani interactions. The primers were designed using sequences of defense-related genes, namely PR 10, epoxide hydrolase (EH), catalase and calmodulin available in NCBI database and evaluated against cDNA obtained from both susceptible and resistant mung bean plants at 1-4 days post-inoculation (dpi) with the test pathogen R. solani and biocontrol agent T. virens using conventional PCR and qPCR analyses. R. solani inoculation upregulated the mean expression of PR 10 and calmodulin in susceptible and resistant varieties, respectively, whereas downregulated in the rest of the treatments. Quantitative PCR analysis showed that except catalase in the susceptible variety, which is downregulated, the expression of PR 10, EH, catalase and calmodulin was upregulated in both resistant and susceptible varieties in response to T. virens alone and in the presence of R. solani. In general, the expression of PR 10 and calmodulin was highest at 1 dpi whereas EH and catalase expression were maximum at 4 dpi. The application of T. virens suppressed the development of disease in the presence of R. solani in both susceptible and resistant varieties with more pronounced effect in resistant variety. Thus, the application of biocontrol agent T. virens upregulated the expression of defense-related genes and reduced disease development.

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“…5A) and was increased 1.5-fold compared with the control. APX activity has also been observed in pepper infected by P. capsici [17], in rice in response to infection with R. solani [38], and in the relationship between R. solani and P. aeruginosa in rice [12]. We also found that APX from cucumber plants was present as three isoenzymes (Ap1, Ap2, and Ap3) ( Fig.…”

Section: Discussionsupporting

confidence: 74%

Induction of Defense Response Against Rhizoctonia solani in Cucumber Plants by Endophytic Bacterium Bacillus thuringiensis GS1

Seo

Nguyen²,

Song³

et al. 2012

J. Microbiol. Biotechnol.

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An endophytic bacterium, Bacillus thuringiensis GS1, was isolated from bracken (Pteridium aquilinum) and found to have maximal production of chitinase (4.3 units/ml) at 5 days after culture. This study investigated the ability of B. thuringiensis GS1 to induce resistance to Rhizoctonia solani KACC 40111 (RS) in cucumber plants. Chitinase activity was greatest in RS-treated plants at 4 days. β-1,3-Glucanase activity was highest in GS1-treated plants at 5 days. Guaiacol peroxidase (GPOD) activity increased continuously in all treated plants for 5 days. Ascorbate peroxidase (APX) activity in RS-treated plants was increased 1.5-fold compared with the control at 4 days. Polyphenol oxidase (PPO) activity in RS-treated plants was increased 1.5-fold compared with the control at 3 days. At 5 days after treatment, activity staining revealed three bands with chitinase activity (Ch1, Ch2, and Ch3) on SDS-PAGE of cucumber plants treated with GS1+RS, whereas only one band was observed for RS-treated plants (Ch2). One GPOD isozyme (Gp1) was also observed in response to treatment with RS and GS1+RS at 4 days. One APX band (Ap2) was present on the native-PAGE gel of the control, and GS1-and GS1+RS-treated plants at 1 day. PPO bands (Po1 and Po2) from RS-and GS1+RS-treated plants were stronger than in the control and GS1-treated plants upon native-PAGE at 5 days. Taken together, these results indicate that the induction of PR proteins and defense-related enzymes by B. thuringiensis GS1 might have suppressed the damping-off caused by R. solani KACC 40111 in cucumber plants.

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Induction of enzymatic scavengers of active oxygen species in rice in response to infection by Rhizoctonia solani

Cited by 23 publications

References 28 publications

The Effect of Trichoderma citrinoviride Treatment under Salinity Combined to Rhizoctonia solani Infection in Strawberry (Fragaria x ananassa Duch.)

The Effect of Trichoderma citrinoviride Treatment under Salinity Combined to Rhizoctonia solani Infection in Strawberry (Fragaria x ananassa Duch.)

Expression of defense-related genes in mung bean varieties in response to Trichoderma virens alone and in the presence of Rhizoctonia solani infection

Induction of Defense Response Against Rhizoctonia solani in Cucumber Plants by Endophytic Bacterium Bacillus thuringiensis GS1

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