Plant Growth Promoting Rhizobacteria-Mediated Amelioration of Abiotic and Biotic Stresses for Increasing Crop Productivity

2012 ◽  
pp. 133-153
Author(s):  
Vasvi Chaudhry ◽  
Suchi Srivastava ◽  
Puneet Singh Chauhan ◽  
Poonam C. Singh ◽  
Aradhana Mishra ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Abiotic And Biotic Stresses ◽  
Biotic Stresses ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals BIO-CONTROL ACTIVITY OF PLANT GROWTH PROMOTING RHIZOBACTERIA ON SCLEROTIUM ROLFSII

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Z. Mary Swaroopa ◽  
R. Jaya Madhuri
Keyword(s):  
Plant Growth ◽  
Agricultural Development ◽  
Crop Improvement ◽  
Sclerotium Rolfsii ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Chemical Components ◽  
Control Activity ◽  
Plant Growth Promoting ◽  
Growth Promoting

Crop productivity and crop improvement are colloidal components as the demand of the increasing population, worldwide for the provision of food from crops require dedicated agricultural strategies that tend to lean on natural, available and, beneficial, easily reproducible means of products. In general, the soil components rich in organic matter that can avail rich microbial community initiates agricultural productivity in abundance and in the way to deduce it. But, commercially available chemical pesticides, pollution in the environment, biotic and abiotic constituents are found to be the key components that stress the crop productivity. This can be overtaken by the microbes that can function as both “bio-fertilizer” and “antagonistic” agents, mentioned as Plant growth-promoting rhizobacteria(PGPR), as they present satisfactory, advantageous impact when ever required, due to their presence in the rhizospheric region, by providing nutrients uptake from soil and controlling the unnecessary hazardous bio-impact on plants .Present study relies on sustainable agricultural development that utilizes the bacteria from the rhizospheric region thereby recommending bio-formulation in the future to mobilize the unaware farmer for better productivity, free of devastating chemical components that enter the food chain via crop produced by using chemicals, and also by easy means without affecting the surrounding environment and human health. In this context, Sclerotium rolfsii, a deleterious pathogen that affects groundnut crops predominantly, how best can be prevented and can be suppressed by using beneficial PGPR is been studied.

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

2019 ◽  
Vol 10 ◽  
Author(s):  
Dilfuza Egamberdieva ◽  
Stephan Wirth ◽  
Sonoko Dorothea Bellingrath-Kimura ◽  
Jitendra Mishra ◽  
Naveen K. Arora
Keyword(s):  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Saline Soils ◽  
Salt Tolerant ◽  
Tolerant Plant ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Enhanced Crop Productivity and Sustainability by Using Native Phosphate Solubilizing Rhizobacteria in the Agriculture of Arid Zones

2020 ◽  
Vol 4 ◽  
Author(s):  
Stefanie Maldonado ◽  
Andrés Rodríguez ◽  
Bastián Ávila ◽  
Paloma Morales ◽  
Máximo Patricio González ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Pathogens ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Arid Zones ◽  
Phosphorus Cycle ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Phosphate Solubilizing ◽  
Phosphate Solubilizing Rhizobacteria

The importance of phosphate solubilizing rhizobacteria (PSB) has been well-document as an option for enhancing sustainable agriculture. As a particular group of plant growth promoting rhizobacteria (PGPR), PSB play an important role in the soil phosphorus cycle, increasing the bioavailability for growth and plant development. This study analyses the plant growth promoting effects of 5 strains (BN0009, BN0013, BN0015, BN0024, and BN0035) out of 180 isolated from Jarava frigida (Phil.) F.Rojas (Poaceae), a native grass from the Andean Atacama desert from North of Chile. The five bacterial isolated (BN strains) were identified as non-pathogenic Erwinia sp. and show a high phosphate solubilization capacity for Ca(PO4) ranging from 608.9 to 781.4 mg/L. Strains IAA production varies between 23.5 and 35.9 mg/L, siderophores, phosphatase (alkaline and acid) production was also observed, but none of the five isolated presented antagonism against plant pathogens Botrytis sp. and Sclerotinia sp. All isolates enhanced seed germination in Lactuca sativa and Solanum lycopersicum (excepting BN009). Additionally, all strains stimulated the early root elongation and seedling development in lettuce and tomato. Pot experiments displayed that BN0015, BN0024, and BN0035 significantly promote plant growth regarding root and leaf area, root and leaf weight, as well as leaf number compared with non-treated plants. In a field experiment with lettuce and two fertilization treatments (50 and 100% of the recommended crop fertilization), BN0024 application improved crop productivity compared to respective control. P content in plants with bacterial inoculations increased significantly compared to control in either fertilization treatment, suggesting an improved nutrient uptake. Also, lettuce with 50% fertilization and inoculation with BN0024 equate productivity with the control 100% fertilization. Finally, we discuss these results in the context of applicability to enhance the agroecosystem productivity in arid and semiarid zones.

scholarly journals Interactive Effect of Organic and Inorganic Amendments along with Plant Growth Promoting Rhizobacteria on Ameliorating Salinity Stress in Maize

2021 ◽  
Author(s):  
Sajid Rashid Ahmad ◽  
Sana Ashraf ◽  
Humaira Nawaz
Keyword(s):  
Plant Growth ◽  
Salinity Stress ◽  
Saline Soil ◽  
Interactive Effect ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Inorganic Amendments ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Salt Affected Soils

Saline soil is one of the common environmental issues that negatively affects the soil quality of agricultural lands. It reduces the plant growth and productivity worldwide. Soil Salinity and sodicity affecting land about 1128 million hectares globally determined by recent researches. The most important salt-sensitive cereal crops in the world are Maize (Zea mays L.) For food security, its need of hour to securing attainable production of maize crop in the salt affected soils. To reduce negative impacts of saline soil on plant growth, sustainable approaches such as organic amendments like press mud and inorganic amendments like silicon can be applied. For increasing crop productivity, plant growth promoting rhizobacteria (PGPR) which are salt-tolerant in saline agriculture can also be applied. In this book chapter interactive effect of different organic and inorganic amendments and plant growth-promoting rhizobacteria to reduce salinity stress on maize has been discussed.

scholarly journals Consortia of Plant-Growth-Promoting Rhizobacteria Isolated from Halophytes Improve Response of Eight Crops to Soil Salinization and Climate Change Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1609
Author(s):  
Susana Redondo-Gómez ◽  
Jennifer Mesa-Marín ◽  
Jesús A. Pérez-Romero ◽  
Javier López-Jurado ◽  
Jesús V. García-López ◽  
...  
Keyword(s):  
Climate Change ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Crop Productivity ◽  
Soil Salinization ◽  
Crop Growth ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Plant Growth Promoting ◽  
Growth Promoting

Soil salinization is an environmental problem that adversely affects plant growth and crop productivity worldwide. As an alternative to the conventional approach of breeding salt-tolerant plant cultivars, we explored the use of plant-growth-promoting rhizobacteria (PGPR) from halophytic plants to enhance crop growth under saline conditions. Here, we report the effect of five PGPR consortia from halophytes on the growth of eight (alfalfa, flax, maize, millet, rice, strawberry, sunflower, and wheat) of the crops most commonly produced on salinized soils worldwide. To test the efficiency of halotolerant consortia, we designed a complex environmental matrix simulating future climate-change scenarios, including increased CO2 levels and temperature. Overall, biofertilizers enhanced growth of most crops with respect to non-inoculated control plants under different CO2 concentrations (400/700 ppm), temperatures (25/+4 °C), and salinity conditions (0 and 85 mM NaCl). Biofertilizers counteracted the detrimental effect of salinity on crop growth. Specifically, strawberry and rice showed the greatest positive additive response to inoculation in the presence of salt; above-ground biomasses were 35% and 3% greater, respectively, than their respective control grown without salt. Furthermore, depending on the interaction of environmental factors (salinity × CO2 × temperature) analyzed, the results varied—influencing the most effective biofertilizer determined for each crop now, or in the future. Our findings highlight the importance of conducting studies that consider stress interaction for realistic assessments of the potential of biofertilizers in a climate-changed world.

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