Cyanobacteria mediated plant growth promotion and bioprotection against Fusarium wilt in tomato

Prasanna, Radha; Chaudhary, Vidhi; Gupta, Vishal; Babu, Santosh; Kumar, Arun; Singh, Rajendra; Shivay, Yashbir Singh; Nain, Lata

doi:10.1007/s10658-013-0167-x

Cited by 138 publications

(101 citation statements)

References 57 publications

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“…Yet, other soil microbes function as biological control agents that negate the effects of pathogenic organisms, improving plant fitness, including fitness for nutrient assimilation and resistance to diseases, drought and metal toxicity (Koele et al 2014). For example, Prasanna et al (2013) found that inoculating tomato with the biocontrol cyanobacterium, Anabaena variabilis, when the plants are exposed to the plant pathogen Fusarium oxysporium resulted in increased plant growth, yield, shoot P and Zn contents, and correlated with increased activity of pathogen defence enzymes and, ultimately, to reduced mortality of the plants. Therefore, maintaining a diverse population of rhizosphere microorganisms by adequate management may be beneficial in the long run.…”

Section: Beneficial Micro-organisms As Crop Inoculantsmentioning

confidence: 99%

Revisiting fertilisers and fertilisation strategies for improved nutrient uptake by plants

et al. 2015

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Meeting human needs within the ecological limits of our planet calls for continuous reflection on, and redesigning of, agricultural technologies and practices. Such technologies include fertilisers, the discovery and use of which have been one of the key factors for increasing crop yield, agricultural productivity and food security. Fertiliser use comes, however, at an environmental cost, and fertilisers have also not been a very economically effective production factor to lift many poor farmers out of poverty, especially in African countries where application on poor soils of unbalanced compositions of nutrients in fertilisers has shown limited impact on yield increase. Agronomic practices to apply existing mineral fertilisers, primarily containing N, P and K, at the right time, the right place, in the right amount, and of the right composition can improve the use efficiency of fertilisers. However, the overall progress to reduce the negative side effects is inadequate for the desired transformation toward sustainable agriculture in poor countries. Globally, there have been no fundamental reflections about the role and functioning of mineral fertilisers over the past 5 decades or more, and compared to other sectors, dismal investments have been made in mineral fertiliser research and development (R&D).In this paper, we reflect on current fertilisers and propose a more deliberate adoption of knowledge of plant physiological processes-including the diversity of mineral nutrient uptake mechanisms, their translocation and metabolism-as an entry point in identifying the physicochemical "packaging" of nutrients, their composition, amount and timing of application to meet plant physiological needs for improved instantaneous uptake. In addition to delivery through the root, we suggest that efforts be redoubled with several other uptake avenues, which as of now are at best haphazard, for the delivery of nutrients to the plant, including above ground parts and seed coating. Furthermore, ecological processes, including nutrient-specific interactions in plant and soil, plantmicroorganism symbiosis, and nanotechnology, have to be exploited to enhance nutrient uptake. It is hoped that concerted R&D efforts will be pursued to achieve these strategies.

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Section: Beneficial Micro-organisms As Crop Inoculantsmentioning

confidence: 99%

Revisiting fertilisers and fertilisation strategies for improved nutrient uptake by plants

et al. 2015

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“…Biological nitrogen (N) fixation through cyanobacteria contributes 25-30 kg N ha −1 per cropping season and may increase rice yields by 10-15% (Venkataraman 1972;Mandal et al 1999). Cyanobacterial consortia, and more recently biofilmed preparations using agriculturally important rhizospheric bacteria and fungi, have shown promise as plant-growth-promoting inoculants/biocontrol agents in a diverse range of crops, such as wheat, cotton, legumes, spices and vegetables (Karthikeyan et al 2007;Nain et al 2010;Manjunath et al 2011;Chaudhary et al 2012;Prasanna et al 2012;Rana et al 2012;Prasanna et al 2013aPrasanna et al , 2013bPrasanna et al , 2013cKumar et al 2013;Prasanna et al 2014Prasanna et al , 2015. However, the effect of different cyanobacterial inoculant combinations on the growth of popular maize hybrids has not been investigated.…”

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confidence: 99%

“…Paddy straw compost available in the Division of Microbiology, IARI, New Delhi, India, was used after mixing with vermiculite (1:1) as carrier, based on optimisation studies (Prasanna et al 2013a). For cyanobacterial cultures and their biofilms, the chlorophyll concentration was measured using the hot extraction method (Mackinney 1941) and maintained as 100 g g −1 carrier.…”

Section: Preparation Of Formulationsmentioning

confidence: 99%

“…Soil chlorophyll concentration, as an index of photosynthetic biomass (chlorophyll a and b), was assayed using 4 ml dimethyl sulphoxide (DMSO) and acetone (1:1) as extractant per gram soil (Nayak et al 2004). The absorbance (expressed as optical density values) was recorded at 663, 645 and 630 nm to measure the chlorophyll concentration (Prasanna et al , 2013a(Prasanna et al , 2014.…”

Section: Microbiological and Nutrient Mobilisation-related Parametersmentioning

confidence: 99%

“…Microbiological activity was evaluated by measuring the activity of three important enzymes in soil, which provides valuable information regarding the use of microbial inoculants (Prasanna et al , 2013a(Prasanna et al , 2013b(Prasanna et al , 2014(Prasanna et al , 2015. Dehydrogenase activity was assayed using 6 g soil, incubated with 3% triphenyl tetrazolium chloride, extracted with methanol and the absorbance was measured at 485 nm.…”

Section: Microbiological and Nutrient Mobilisation-related Parametersmentioning

confidence: 99%

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Prospecting cyanobacterial formulations as plant-growth-promoting agents for maize hybrids

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Co‐cultivation of diazotrophic terrestrial cyanobacteria and Arabidopsis thaliana

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et al. 2020

Engineering in Life Sciences

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Diazotrophic cyanobacteria are able to fix N2 from the atmosphere and release it as bioavailable nitrogen what other organisms can utilize. Thus, they could be used as living nitrogen supplier whereby the use of fertilizer could be reduced in agricultural industry what results in a decrease of laughing gas released during fertilizer production. The diazotroph cyanobacterium Desmonostoc muscorum (D. muscorum) was characterized in shake flasks cultivated in nitrogen‐free and nitrogen‐containing medium. Similar growth rates were reached in both cultivations and the release of ammonium by D. muscorum was detected under nitrogen depletion. Subsequently, D. muscorum was co‐cultivated with Arabidopsis thaliana (A. thaliana) in nitrogen‐free medium. Additionally, the plant was cultivated in nitrogen containing and nitrogen‐free medium without D. muscorum as reference. A co‐cultivation led to higher growth rates of the cyanobacterium and similar growth of A. thaliana with similar maximum photochemical efficiency of photosystem II compared to the growth of nitrogen containing medium. Further, accumulation of cyanobacterial cells around the roots of A. thaliana was detected, indicating a successfully induced artificial symbiosis. Based on these results, D. muscorum could be a promising cyanobacterium as living nitrogen supplier for plants.

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Cyanobacteria mediated plant growth promotion and bioprotection against Fusarium wilt in tomato

Cited by 138 publications

References 57 publications

Revisiting fertilisers and fertilisation strategies for improved nutrient uptake by plants

Revisiting fertilisers and fertilisation strategies for improved nutrient uptake by plants

Prospecting cyanobacterial formulations as plant-growth-promoting agents for maize hybrids

Co‐cultivation of diazotrophic terrestrial cyanobacteria and Arabidopsis thaliana

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