Deciphering Diversity of Salt-Tolerant Bacilli from Saline Soils of Eastern Indo-gangetic Plains of India

Sharma, Anjney; Singh, Preeti; Kumar, Sudheer; Kashyap, Prem Lal; Srivastava, Alok Kumar; Chakdar, Hillol; Singh, Ram; Kaushik, Rajeev; Saxena, Anil Kumar; Sharma, Arun Kumar

doi:10.1080/01490451.2014.938205

Cited by 61 publications

(43 citation statements)

References 35 publications

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“…The diversity of salt-tolerant bacilli was also deciphered in the soil of eastern Indo Gangetic plains of India by Sharma et al (2015). They isolated 95 bacterial strains and amongst them, 55 showed plant growth promoting characteristics and salttolerance to more than 4% NaCl.…”

Section: The Diversity Of Salt-tolerant Plant Growth Promoting Rhizobmentioning

confidence: 99%

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

et al. 2019

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Soil salinity has emerged as a serious issue for global food security. It is estimated that currently about 62 million hectares or 20 percent of the world's irrigated land is affected by salinity. The deposition of an excess amount of soluble salt in cultivable land directly affects crop yields. The uptake of high amount of salt inhibits diverse physiological and metabolic processes of plants even impacting their survival. The conventional methods of reclamation of saline soil which involve scraping, flushing, leaching or adding an amendment (e.g., gypsum, CaCl 2 , etc.) are of limited success and also adversely affect the agro-ecosystems. In this context, developing sustainable methods which increase the productivity of saline soil without harming the environment are necessary. Since long, breeding of salt-tolerant plants and development of salt-resistant crop varieties have also been tried, but these and aforesaid conventional approaches are not able to solve the problem. Salt tolerance and dependence are the characteristics of some microbes. Salt-tolerant microbes can survive in osmotic and ionic stress. Various genera of salt-tolerant plant growth promoting rhizobacteria (ST-PGPR) have been isolated from extreme alkaline, saline, and sodic soils. Many of them are also known to mitigate various biotic and abiotic stresses in plants. In the last few years, potential PGPR enhancing the productivity of plants facing salt-stress have been researched upon suggesting that ST-PGPR can be exploited for the reclamation of saline agro-ecosystems. In this review, ST-PGPR and their potential in enhancing the productivity of saline agro-ecosystems will be discussed. Apart from this, PGPR mediated mechanisms of salt tolerance in different crop plants and future research trends of using ST-PGPR for reclamation of saline soils will also be highlighted.

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Section: The Diversity Of Salt-tolerant Plant Growth Promoting Rhizobmentioning

confidence: 99%

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

et al. 2019

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“…High pH and salinity present a multifold challenge to all organisms in terms of ionic disequilibria and perturbed osmotic balance. Microorganisms that isolated and characterized from highly saline and saline-sodic soils have adapted special genetic and morphological modifications to survive under such extreme conditions [35,36]. Here, we reported haloalkaliphilic bacterial diversity from the rhizosphere, rhizoplane and root endosphere of a halophyte (D. annulatum).…”

Section: Discussionmentioning

confidence: 81%

Isolation and Characterization of Haloalkaliphilic Bacteria Isolated from the Rhizosphere of Dichanthium annulatum

Mukhtar¹,

Malik²,

Mehnaz³

2018

JARB

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Hypersaline environments are widely distributed across the globe as salt mines, saline lakes, salt marshes and marine water [1, 2]. Halophytes such as Atriplex, Salsola, Dichanthium, kallar grass and para grass may contribute significantly to the developing world's supply of food, fiber, fuel and fodder. For areas where farm land has been salinized by poor irrigation practices or that overlie reservoirs of brackish water or for coastal desert regions, these plants could be successfully grown [3, 4]. The rhizosphere of halophytes harbors an impressive array of halophilic and alkaliphilic microorganisms. Poly extremophilic organisms have ability to tolerate two or more extreme conditions, such as haloalkaliphiles, halothermophiles and alkalithermophiles [5]. Haloalkaliphiles are organisms that require high salinity (3-30%) and an alkaline pH (pH 9-13) for their growth [6]. These organisms have been isolated and characterized from a number of environments such as saline

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“…More than 45 million hectares (M ha) of irrigated land which account to 20% of total land have been affected by salt worldwide and 1.5 M ha are taken out of production each year due to high salinity levels (Negrão et al, 2017; Munns and Tester 2008). Poor germination and seedling establishment are the results of soil salinity, which adversely affects plants growth and development and results in to low agricultural production (Sharma et al, 2015;Miransari and Smith, 2007). The effects of salinity at seedling stage of wheat range from reduction in germination percentage, fresh and dry weight of shoots and roots to the uptake of various nutrient ions (Darko et al, 2017;Yang et al, 2014).…”

Section: Salinity Stress Alleviationmentioning

confidence: 99%

Nanotechnology Scope and Applications for Wheat Production and Quality Enhancement:A Review of Recent Advances

Jsarotia¹,

Kashyap²,

Bhardwaj³

et al. 2018

wbr

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Wheat (Triticum aestivum) is main staple food grain crop, grown in a range of environments over an area of 221.6 million hectares (M ha) with an annual production likely to reach more than 750.4 million metric tons in 2016-17 (Foreign Agricultural Service, USDA, 2018). Despite of this significant growth, the world population in some parts is still facing hunger crisis due to insufficient availability of food grains. To meet the future food demands imposed by overwhelming increasing population which is expected to reach nine billions in 2050, the world wheat production must continue to increase by 2% annually. This challenge of increasing wheat production is daunting as the wheat cropping system at present is constrained by climatic fluctuations, poor soil health and has increased risk of epidemic outbreak of diseases and insect-pests. To address these challenges, innovative technologies with a potential of increasing the sustainability of the present day cropping systems are required to be introduced in modern agriculture. Among these technological advancements, nanotechnology is gathering significant contemplations due to its wide spectrum applications in agriculture and allied sectors. It has a wider application in the field of crop production, food security, sustainability and climate change and is being utilized for developing several precise tool sets like nanofertilizer, nanopesticide, nanoherbicide, nanosensor and smart delivery systems for controlled and sustained release of agrochemicals. Recent research evidences indicated that intervention of nanotechnology in wheat farming is still in its early stages, although have bright prospects for efficient nutrient utilization through nanoformulations of fertilizers, breaching yield barriers through bionanotechnology, surveillance and management of pests and diseases and development of new-generation pesticides etc.

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Deciphering Diversity of Salt-Tolerant Bacilli from Saline Soils of Eastern Indo-gangetic Plains of India

Cited by 61 publications

References 35 publications

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

Salt-Tolerant Plant Growth Promoting Rhizobacteria for Enhancing Crop Productivity of Saline Soils

Isolation and Characterization of Haloalkaliphilic Bacteria Isolated from the Rhizosphere of Dichanthium annulatum

Nanotechnology Scope and Applications for Wheat Production and Quality Enhancement:A Review of Recent Advances

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