Application of Algal Biofertilizers (Aulosira Fertilissima Tenuis and Anabaena Doliolum Bhardawaja) for Sustained Paddy Cultivation in Northern India

Dubey, Archana; K., A.

doi:10.1080/07929978.1995.10676589

Cited by 23 publications

(8 citation statements)

References 9 publications

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“…So, algalization has a supplementing effect on the crop yield. Several trails under different agro-climatic conditions with different paddy-cultivars have shown significant increase in paddy yield due to algalization (Goyal 1993, Roger 1991, Dubey and Rai 1995, Gopalaswamy et al 1997. Besides crop yield, 20-30 kg chemical N/ha per season can also be saved by using algal biofertilizer in the paddy crops (Goyal 1996, Singh et al 1992.…”

Section: Introductionmentioning

confidence: 99%

Cyanophycean Algae Inhabiting Sodic Soil Exhibit Diverse Morphology: An Adaptation to High Exchangeable Sodium

Singh¹,

Kishore²,

Prakash³

et al. 2009

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A soil pot experiment was conducted in soils containing two exchangeable sodium percentage (ESP) levels i.e. normal (4.37) and high (54.5) ESP levels. The soils used in experiment were collected from different natural conditions to asses the algal biodiversity and changes in morphology of algae. The genera reported at high ESP were Oscillatoria, Lyngbya and colony of Anabaena while in normal soil these were absent. The heterocyst chain was also observed in soil of high ESP while in normal soil it was not reported. The width of heterocyst was much different than those reported. The chemical properties of soil e.g. pH, exchangeable sodium and ESP were decreased while organic carbon and total nitrogen contents were increased after one year algal growth.

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Section: Introductionmentioning

confidence: 99%

Cyanophycean Algae Inhabiting Sodic Soil Exhibit Diverse Morphology: An Adaptation to High Exchangeable Sodium

Singh¹,

Kishore²,

Prakash³

et al. 2009

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“…doliolum is a salt-sensitive, N 2 -fixing cyanobacterium growing profusely in paddy fields of eastern Uttar Pradesh, India. Application of this cyanobacterium (12.5 kg hectare 21 ) in paddy fields resulted in higher yields (increased the number of panicles per hill and the number of seeds per ear), and reduced the use of chemical N-fertilizer by 25 % (Dubey & Rai, 1995). The agronomic importance of the rice field cyanobacterium and increasing salinization of paddy fields prompted us to transform An.…”

Section: Discussionmentioning

confidence: 99%

The freshwater cyanobacterium Anabaena doliolum transformed with ApGSMT-DMT exhibited enhanced salt tolerance and protection to nitrogenase activity, but became halophilic

et al. 2013

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Glycine betaine (GB) is an important osmolyte synthesized in response to different abiotic stresses, including salinity. The two known pathways of GB synthesis involve: 1) two step oxidation of choline (choline A betaine aldehyde A GB), generally found in plants, microbes and animals; and 2) three step methylation of glycine (glycine A sarcosine A dimethylglycine A GB), mainly found in halophilic archaea, sulphur bacteria and the cyanobacterium Aphanothece (Ap.) halophytica. Here, we transformed a salt-sensitive freshwater diazotrophic filamentous cyanobacterium Anabaena (An.) doliolum with N-methyltransferase genes (ApGSMT-DMT) from Ap. halophytica using the triparental conjugation method. The transformed An. doliolum synthesized and accumulated GB in cells, and showed increased salt tolerance and protection to nitrogenase activity. The salt responsiveness of the transformant was also apparent as GB synthesis increased with increasing concentrations of NaCl in the nutrient solution, and maximal [12.92 mmol (g dry weight)"1 ] in cells growing at 0.5 M NaCl. Therefore, the transformed cyanobacterium has changed its behaviour from preferring freshwater to halophily. This study may have important biotechnological implications for the development of stress tolerant nitrogen-fixing cyanobacteria as biofertilizers for sustainable agriculture.

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“…The water fern Azolla harbors Anabaena azollae in its fronds and the cyanobacterium releases ammonium into the water when paddy fields are inoculated with foam-immobilized A. azollae strains (Kannaiyan et al, 1997). Significant increase in grain yield, biomass and nutritive value of rice can be achieved by inoculating Anabaena doliolum and A. fertilissima in paddy fields with or without urea (Dubey and Rai, 1995). Several cyanobacterial species such as Anabaena iyengarii var.…”

Section: Cyanobacteria As Biofertilizersmentioning

confidence: 99%

“…tenuis, A. fertilissima, Nostoc commune, N. ellipsosporum, N. linckia, and Gloeotrichia natans are known to contribute to the productivity of rice fields in Chile (Pereira et al, 2009). Generally, application of 12.5 kg ha −1 of cyanobacterial biofertilizer has been recommended for quantitative and qualitative improvements in rice production (Dubey and Rai, 1995). In addition to rice crop, cyanobacterial biofertilizers can also enhance the yield, shoot/root length, and dry weight of wheat crops (Spiller and Gunasekaran, 1990;Obreht et al, 1993;Karthikeyan et al, 2009).…”

Section: Cyanobacteria As Biofertilizersmentioning

confidence: 99%

Cyanobacterial Farming for Environment Friendly Sustainable Agriculture Practices: Innovations and Perspectives

Pathak

Rajneesh

Maurya

et al. 2018

Front. Environ. Sci.

179

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Sustainable supply of food and energy without posing any threat to environment is the current demand of our society in view of continuous increase in global human population and depletion of natural resources of energy. Cyanobacteria have recently emerged as potential candidates who can fulfill abovementioned needs due to their ability to efficiently harvest solar energy and convert it into biomass by simple utilization of CO 2 , water and nutrients. During conversion of radiant energy into chemical energy, these biological systems produce oxygen as a by-product. Cyanobacterial biomass can be used for the production of food, energy, biofertilizers, secondary metabolites of nutritional, cosmetics, and medicinal importance. Therefore, cyanobacterial farming is proposed as environment friendly sustainable agricultural practice which can produce biomass of very high value. Additionally, cyanobacterial farming helps in decreasing the level of greenhouse gas, i.e., CO 2 , and it can be also used for removing various contaminants from wastewater and soil. However, utilization of cyanobacteria for resolving the abovementioned problems is subjected to economic viability. In this review, we provide details on different aspects of cyanobacterial system that can help in developing sustainable agricultural practices. We also describe different large-scale cultivation systems for cyanobacterial farming and discuss their merits and demerits in terms of economic profitability.

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Application of Algal Biofertilizers (Aulosira Fertilissima Tenuis and Anabaena Doliolum Bhardawaja) for Sustained Paddy Cultivation in Northern India

Cited by 23 publications

References 9 publications

Cyanophycean Algae Inhabiting Sodic Soil Exhibit Diverse Morphology: An Adaptation to High Exchangeable Sodium

Cyanophycean Algae Inhabiting Sodic Soil Exhibit Diverse Morphology: An Adaptation to High Exchangeable Sodium

The freshwater cyanobacterium Anabaena doliolum transformed with ApGSMT-DMT exhibited enhanced salt tolerance and protection to nitrogenase activity, but became halophilic

Cyanobacterial Farming for Environment Friendly Sustainable Agriculture Practices: Innovations and Perspectives

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