Potential Plant Growth-Promoting Activity of Pseudomonas sp Isolated from Paddy Soil in Malaysia as Biocontrol Agent

Saini, Deepika; Sarin, Renu

doi:10.4172/2157-7471.1000120

Cited by 23 publications

(10 citation statements)

References 39 publications

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“…In addition, the production of HCN by Trichoderma isolates was reported as an important antifungal feature for soil borne fungi pathogen management. This was due to the microbial produced cyanide can acts as a general metabolic inhibitor to avoid predation or competition without harming the host plant (Noori and Saud, 2012.). Moreover, hydrogen cyanide was also reported effectively in blocking the cytochrome oxidase pathway and which is highly toxic to microorganisms at picomolar concentrations (Manwar et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…After incubation, the colonies with clear halo zones (solubilizing zone) around colony indicated positive solubilization of mineral phosphate. Phosphate solubilization activities were screened by measuring the clearing zone surrounding the fungal colony as phosphate solubilization index (Noori and Saud, 2012). were further confirmed by seed germination testing and rice seedling vigor index before evaluated under greenhouse conditions.…”

Section: Asianmentioning

confidence: 99%

“…A 1.5 mL of aliquot was sampled and centrifuged at 3,000 rpm for 30 min, 1 mL of the supernatant was then added with two drops of orthophosphoric acid and 4 mL of salkowskis reagent (50 mL, 35% perchloric acid; 1 mL 0.5 M ferric chloride, FeCl 3 ). To determine the amount of IAA produced from the isolates, the colour density (absorbance) was measured at 535 nm using spectrophotometer (Noori and Saud, 2012). The IAA produced was compared to the standard graft and expressed as μg mLG 1 .…”

Section: Asianmentioning

confidence: 99%

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Potential of Trichoderma spp. as Biological Control Agents Against Bakanae Pathogen (Fusarium fujikuroi) in Rice

Ng¹,

Ngadin²,

azhari³

et al. 2015

Asian J. of Plant Pathology

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Bakanae disease is a major rice disease caused by Fusarium fujikuroi. Infected plants show slender and hyper elongated internodes due to the over-production of gibberellic acid. Application of Trichoderma spp. as biocontrol agent is gaining attention due to high capability in hyperparasitize the soil borne pathogen. The studies aimed to screen and evaluate the bio-efficacy of Trichoderma spp. with antagonistic activities against F. fujikuroi and plant growth-promoting properties. All the 65 Trichoderma isolates were isolated from healthy rice rhizosphere soil. Thirty eight out of 65 Trichoderma isolates exhibited more than 45 Percentage of Inhibition Radial Growth (PIRG) against F. fujikuroi in dual culture plate testing. All selected Trichoderma isolates were further in vitro screened for antagonistic testing: volatile compounds production and hydrogen cyanide production and plant growth-promotion properties: IAA production and phosphate solubilization. Twelve Trichoderma isolates were selected for further evaluation on antagonistic activity against F. fujikuroi, germination rate, plumule and radical lengths and vigor index. Finally, seven of the most potential Trichoderma isolates were selected for greenhouse evaluation. The bakanae disease incidence and disease severity in rice plant treated with respective selected Trichoderma isolates were significant reduced as compared with untreated plant. However, there was no significant increase in plant height between Trichoderma inoculated and uninoculated plants. Moreover, rice plant treated with Trichoderma T61 showed significantly increase in total plant dry biomass as compared to untreated plants. The selected Trichoderma isolates have potential to be developed as biological control agent against F. fujikuroi and also as an alternative for bakanae management.

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Section: Discussionmentioning

confidence: 99%

Section: Asianmentioning

confidence: 99%

Section: Asianmentioning

confidence: 99%

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Potential of Trichoderma spp. as Biological Control Agents Against Bakanae Pathogen (Fusarium fujikuroi) in Rice

Ng¹,

Ngadin²,

azhari³

et al. 2015

Asian J. of Plant Pathology

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“…The results of the study by Manzoor et al (2016) showed that the phosphate solvent bacteria were able to increase the biomass of corn plant and accumulation of phosphorus in plants. Pseudomonas fluorescens was capable of producing plant growthenhancing agents and antifungal substances, for the development of biological fertilizers and bioinoculants for food crops (Noori and Saud 2012).…”

Section: Discussionmentioning

confidence: 99%

Short Communication: Potential tests of plant growth bacteria for the control of Peronosclerospora philipinensis in corn

et al. 2020

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Abstract. Djaenuddin N, Syafruddin, Patandjengi B, Kuswinanti T. 2020. Short Communication: Potential tests of plant growth bacteria for the control of Peronosclerospora philipinensis in corn. Biodiversitas 21: 3886-3892. The study was conducted at the Laboratory and Screen House of the Indonesian Cereals Research Institute (ICERI). The stages of the study were (i) potential test of bacterial isolates that have the ability to control downy mildew disease in vivo in corn and (ii) molecular identification of the selected bacterial isolates. Experiments were arranged in a Completely Randomized Design (CRD) with treatment of 24 bacteria which suspected to be growth-promoting bacteria. The parameters observed were disease intensity, percent disease suppression, plant height, chlorophyll content, and crop wet weight. The result showed that only five bacterial isolates namely, Bacillus albus strain MCCC 1A02146, Bacillus cereus strain IAM 12605, Bacillus paramycoides strain MCCC 1A04098, Pseudomonas stutzeri strain CCUG 11256, Serratia marcescens subsp. sakuensis strain KRED, have the ability to induce resistance to downy mildew disease caused by Peronosclerospora philipinensis.

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“…Plant growth promoting bacteria also promote both mobilization of TEs from paddy soils and root growth by hormonal activities [73][74][75]. Aerobic paddy fields are also benefitted by burrowers that enable air and water movement [76].…”

Section: Biological Processesmentioning

confidence: 99%

Trace Element Management in Rice

Sebastian¹,

Prasad²

2015

Agronomy

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Trace elements (TEs) are vital for the operation of metabolic pathways that promote growth and structural integrity. Paddy soils are often prone to TE limitation due to intensive cultivation and irrigation practices. Apart from this, rice paddies are potentially contaminated with transition metals such as Cd, which are often referred to as toxic TEs. Deficiency of TEs in the soil not only delays plant growth but also causes exposure of plant roots to toxic TEs. Fine-tuning of nutrient cycling in the rice field is a practical solution to cope with TEs deficiency. Adjustment of soil physicochemical properties, biological process such as microbial activities, and fertilization helps to control TEs mobilization in soil. Modifications in root architecture, metal transporters activity, and physiological processes are also promising approaches to enhance TEs accumulation in grains. Through genetic manipulation, these modifications help to increase TE mining capacity of rice plants as well as transport and trafficking of TEs into the grains. The present review summarizes that regulation of TE mobilization in soil, and the genetic improvement of TE acquisition traits help to boost essential TE content in rice grain.

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Potential Plant Growth-Promoting Activity of Pseudomonas sp Isolated from Paddy Soil in Malaysia as Biocontrol Agent

Cited by 23 publications

References 39 publications

Potential of Trichoderma spp. as Biological Control Agents Against Bakanae Pathogen (Fusarium fujikuroi) in Rice

Potential of Trichoderma spp. as Biological Control Agents Against Bakanae Pathogen (Fusarium fujikuroi) in Rice

Short Communication: Potential tests of plant growth bacteria for the control of Peronosclerospora philipinensis in corn

Trace Element Management in Rice

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