Influence of co-inoculation of bacteria-cyanobacteria on crop yield and C–N sequestration in soil under rice crop

Prasanna, Radha; Joshi, Meenakshi; Rana, Anuj; Shivay, Yashbir Singh; Nain, Lata

doi:10.1007/s11274-011-0926-9

Cited by 146 publications

(83 citation statements)

References 47 publications

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“…VAM, PS and cyanobacteria. A similar pattern of observations has been reported by many workers based on the interaction studies between nitrogen fixing microorganisms [5,11,33,40,41]. These benefits may also be due to the combined influence of nutrient supply as well as bioprotection [38].…”

Section: Crop Responsesupporting

confidence: 86%

Developments in Cyanobacterial Biofertilizer

Kaushik¹

2014

Proceedings of the Indian National Science Academy

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Rice is the world's most important food crop as more than 40% of the world's population depends on rice as a major source of calories. Rice yield in India is about 1990 kg/ha against a maximum of 3346 kg/ha in Punjab. Though the rice y i e l d s i n P u n j a b i s h i g h e s t i n t h e c o u n t r y, i t i s q u i t e l o w c o m p a r e d t o C h i n a ( 5 8 0 7 k g / h a ) . S u c h d i v e r s i t y i n y i e l d s i s d u e to insufficient use of fertilizer nitrogen. Nitrogen is present as elemental nitrogen in the atmosphere and constitutes more than 79 per cent of total gases. However, crop plants cannot utilize nitrogen in elemental form. On global level, out of 180 m i l l i o n t o n n e s o f n i t r o g e n a d d e d a n n u a l l y o n t h e e a r t h 's s u r f a c e , 2 / 3 i s t h r o u g h b i o l o g i c a l p r o c e s s e s , l a r g e l y m i c r o b i a l activities. Cyanobacteria colonize rice fields and provide biologically fixed nitrogen to the rice crop to the extent of 25-30 kg nitrogen per hectare. In India, on an average, cyanobacteria accounts to about 33% of total algal flora of Indian rice fi el d so i l s [ 6 6 ] , wh ereas i n so me o f t h e so u t h ern an d east ern st at es t h i s reach es u p t o 5 0 %. Vi rt u al l y al l t h e d o mi n an t cyanobacteria in rice fields are nitrogen fixing. Ap a r t fr o m i n c r e a s e i n yi e l d a n d s a v i n g o f fe r t i l i z e r n i t r o g e n , c ya n o b a c t e r i a l i n o c u l a t i o n i mp r o v e s t h e p h ys i c o -c h e mi c a lproperties of soil, gradual build-up of residual soil nitrogen and carbon, improvement in soil pH and electrical conductivity. The grain quality in terms of protein content was improved. Our recent studies have shown that the cyanobacteria (Nostoc a n d Anabaena) were cap ab le o f formi ng associati ons wit h wh eat ro ots gro wn i n li qu id cu lt ure. P ro babl y, su ch cyano bact eria contribute nitrogen and growth promoting substances to plants in the rhizosphere.

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Section: Crop Responsesupporting

confidence: 86%

Developments in Cyanobacterial Biofertilizer

Kaushik¹

2014

Proceedings of the Indian National Science Academy

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“…Some cyanobacteria have the ability to live in association with a wide range of plants from the divisions Bryophyta (liverworts and hornworts), Pteridophyta (genus Azolla), gymnosperms (family Cycadaceae), and angiosperms (family Gunneraceae) (Table 1) (Rai et al, 2002). Cyanobacteria are also important as bioinoculants for enhancing fertility, and improving soil structure and crop yields in rice fields (Prasanna et al, 2012). In addition to the highly abundant Cyanobacteria, the endophytic community also included a small proportion of Proteobacteria (3%) and other phyla (1%).…”

Section: Resultsmentioning

confidence: 99%

Microbial diversity in Paris polyphylla var. yunnanensis rhizomes of varying ages

Yang¹,

Sc²,

Zhao³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Endophyte microorganisms live inside plants without causing them any apparent damage. Recently, endophytic microorganisms have attracted attention because they can produce bioactive compounds of biotechnological interest. The endophytic microorganisms in Paris polyphylla var. yunnanensis (Liliaceae) -a species used since antiquity in traditional Chinese medicine -are under scrutiny because they may be responsible for producing the bioactive metabolites associated with the plant. The levels of bioactive metabolites in the rhizomes of P. polyphylla increase with rhizome age. To elucidate the roles played by endophytes in the accumulation of bioactive metabolites, we investigated the community structure and diversity of the endophytic microorganisms in P. polyphylla rhizomes of different ages (4, 6, and 8 years) using 16S rRNA and internal transcribed spacer (ITS) sequence analysis. 16S rDNA amplicon pyrosequencing revealed that the number of operational taxonomic units was lower in the 8-year-old samples than in the other samples. A total of 28 phyla were observed in the P. polyphylla samples and the predominant (2015) bacteria were of the Cyanobacteria and Proteobacteria phyla. Moreover, the percentage of Cyanobacteria increased with rhizome age. Similarly, ITS1 amplicon pyrosequencing identified developmental changes in the most abundant fungal classes; some classes were more prevalent in the 8-year-old rhizomes than in younger rhizomes, indicating the importance in secondary metabolism in older rhizomes. Our study showed that endophyte microorganism diversity and prevalence depend on P. polyphylla rhizome age. There was also an indication that some endophyte microorganisms contribute to the higher saponin content in older P. polyphylla specimens.

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“…The consortium of PGPR and cyanobacteria increases the plant growth by improving the soil fertility and nutrient utilization. In additions, this consortium also enhances the tolerance of plants against environmental stresses such as drought and salinity Prasanna et al, 2012;Singh, 2014). However, community structure and diversity of cyanobacteria should be studied in depth particularly in reference to environmental conditions and ecosystem functions before devising application of a consortium under field conditions.…”

Section: Cyanobacteria and Sustainable Agriculturementioning

confidence: 99%

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

Pathak

Rajneesh

Maurya

et al. 2018

Front. Environ. Sci.

160

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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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Influence of co-inoculation of bacteria-cyanobacteria on crop yield and C–N sequestration in soil under rice crop

Cited by 146 publications

References 47 publications

Developments in Cyanobacterial Biofertilizer

Developments in Cyanobacterial Biofertilizer

Microbial diversity in Paris polyphylla var. yunnanensis rhizomes of varying ages

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

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