Identification of siderophore producing and cynogenic fluorescent Pseudomonas and a simple confrontation assay to identify potential bio-control agent for collar rot of chickpea

Kotasthane, Anil S.; Agrawal, Toshy; Zaidi, Najam W.; Singh, Usha

doi:10.1007/s13205-017-0761-2

Cited by 52 publications

(36 citation statements)

References 21 publications

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“…The present study also proved that fluorescent pseudomonads were the most proficient siderophore producers in comparison with other strains. Many researchers have reported fluorescent pseudomonads to be prolific producers of siderophores (Pandey et al 2005 ; Subramanian and Satyan 2014 ; Pattan et al 2017 ; Kotasthane et al 2017 ). In fact, P. aeruginosa are amongst the most efficient producers of siderophores reported from rhizosphere or other habitats as shown by this work also (de Villegas et al 2002 ; Unni et al 2014 ; Sasirekha and Srividya 2016 ).…”

Section: Resultsmentioning

confidence: 99%

Modified microplate method for rapid and efficient estimation of siderophore produced by bacteria

2017

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In this study, siderophore production by various bacteria amongst the plant-growth-promoting rhizobacteria was quantified by a rapid and efficient method. In total, 23 siderophore-producing bacterial isolates/strains were taken to estimate their siderophore-producing ability by the standard method (chrome azurol sulphonate assay) as well as 96 well microplate method. Production of siderophore was estimated in percent siderophore unit by both the methods. It was observed that data obtained by both methods correlated positively with each other proving the correctness of microplate method. By the modified microplate method, siderophore production by several bacterial strains can be estimated both qualitatively and quantitatively at one go, saving time, chemicals, making it very less tedious, and also being cheaper in comparison with the method currently in use. The modified microtiter plate method as proposed here makes it far easier to screen the plant-growth-promoting character of plant-associated bacteria.

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Section: Resultsmentioning

confidence: 99%

Modified microplate method for rapid and efficient estimation of siderophore produced by bacteria

2017

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“…Insecticide and acaricide Jansson and Dybas (1996) (2017) fluorescent Pseudomonas produces siderophores in the presence of a strong chelator 8-Hydroxyquinoline which inhibits pathogens such as Rhizoctonia solani and Sclerotium rolfsii (Kotasthane et al 2017). Table 5.8 listed some important findings as endophytes as biocontrol agents.…”

Section: Streptomyces Avermitilismentioning

confidence: 99%

Phyllospheric Microbiomes: Diversity, Ecological Significance, and Biotechnological Applications

Sivakumar

Sathishkumar

Selvakumar

et al. 2020

Sustainable Development and Biodiversity

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The phyllosphere referred to the total aerial plant surfaces (above-ground portions), as habitat for microorganisms. Microorganisms establish compositionally complex communities on the leaf surface. The microbiome of phyllosphere is rich in diversity of bacteria, fungi, actinomycetes, cyanobacteria, and viruses. The diversity, dispersal, and community development on the leaf surface are based on the physiochemistry, environment, and also the immunity of the host plant. A colonization process is an important event where both the microbe and the host plant have been benefited. Microbes commonly established either epiphytic or endophytic mode of life cycle on phyllosphere environment, which helps the host plant and functional communication with the surrounding environment. To the scientific advancement, several molecular techniques like metagenomics and metaproteomics have been used to study and understand the physiology and functional relationship of microbes to the host and its environment. Based on the available information, this chapter describes the basic understanding of microbiome in leaf structure and physiology, microbial interactions, especially bacteria, fungi, and actinomycetes, and their adaptation in the phyllosphere environment. Further, the detailed information related to the importance of the microbiome in phyllosphere to the host plant and their environment has been analyzed. Besides, biopotentials of the phyllosphere microbiome have been reviewed.

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“…Biocontrol of soil-borne diseases has been addressed using antagonistic bacteria and fungi such as Bacillus spp., Pseudomonas spp., Pantoea spp., and Trichoderma spp. These agents were reported effective not only to manage plant pathogens but also to help the plants to mobilize and acquire macro-and micronutrients (Postma et al 2003;Perner et al 2006;Maisuria et al 2008;Kothasthane et al 2017). Microbial biocontrol agents reported for soil-borne diseases of chickpea and pigeonpea are summarized in Table 5.1.…”

Section: Management Of Soil-borne Diseases Of Chickpea and Pigeonpeamentioning

confidence: 99%

Management of Soil-Borne Diseases of Grain Legumes Through Broad-Spectrum Actinomycetes Having Plant Growth-Promoting and Biocontrol Traits

Gopalakrishnan

Srinivas

2019

Plant Microbe Interface

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Chickpea (Cicer arietinum L.) and pigeonpea (Cajanus cajan L.) are the two important grain legumes grown extensively in the semiarid tropics (SAT) of the world, where soils are poor in nutrients and receive inadequate/erratic rainfall. SAT regions are commonly found in Africa, Australia, and South Asia. Chickpea and pigeonpea suffer from about 38 pathogens that cause soil-borne diseases including wilt, collar rot, dry root rot, damping off, stem canker, and Ascochyta/Phytophthora blight, and of which three of them, wilt, collar rot, and dry root rot, are important in SAT regions. Management of these soil-borne diseases are hard, as no one control measure is completely effective. Advanced/delayed sowing date, solarization of soil, and use of fungicides are some of the control measures usually employed for these diseases but with little success. The use of disease-resistant cultivar is the best efficient and economical control measure, but it is not available for most of the soil-borne diseases. Biocontrol of soil-borne plant pathogens has been managed using antagonistic actinobacteria, bacteria, and fungi. Actinobacterial strains of Streptomyces, Amycolatopsis, Micromonospora, Frankia, and Nocardia were reported to exert effective control on soil-borne pathogens and help the host plants to mobilize and acquire macro-and micronutrients. Such novel actinomycetes with wide range of plant growth-promoting (PGP) and antagonistic traits need to be exploited for sustainable agriculture. This chapter gives a comprehensive analysis of important soil-borne diseases of chickpea and pigeonpea and how broad-spectrum actinomycetes, particularly Streptomyces spp., could be exploited for managing them.

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Identification of siderophore producing and cynogenic fluorescent Pseudomonas and a simple confrontation assay to identify potential bio-control agent for collar rot of chickpea

Cited by 52 publications

References 21 publications

Modified microplate method for rapid and efficient estimation of siderophore produced by bacteria

Modified microplate method for rapid and efficient estimation of siderophore produced by bacteria

Phyllospheric Microbiomes: Diversity, Ecological Significance, and Biotechnological Applications

Management of Soil-Borne Diseases of Grain Legumes Through Broad-Spectrum Actinomycetes Having Plant Growth-Promoting and Biocontrol Traits

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