Free Living Nitrogen Fixation and Their Response to Agricultural Crops

Fatima, Parveen; Mishra, Anurag; Om, Hari; Saha, Bholanath; Kumar, Pushpendra

doi:10.1201/9780429059384-9

Cited by 4 publications

(2 citation statements)

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“…8 The genus Azotobacter, belonging to family Azotobacteri aceae, is the key group of heterotrophic non-symbiotic N-fixing bacteria. The non-symbiotic free living Azotobacter is mostly related with N fixation in plant rhizosphere 9 and is capable of fixing at least 10 mg N per g of carbohydrate. 10,11 Azotobacter spp.…”

Section: Introductionmentioning

confidence: 99%

Influence of Integrated Approach of Azotobacter and Nitrogen Fertilizer on Various Morpho-Physiological and Biochemical Parameters of Brassica Oleracea L. var. capitata

Saffeullah

Nabi

Umar

2021

Curr. World Environ

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This study was formulated to evaluate the impact of bacterization with Azotobacter of two cabbage genotypes (Pusa Early golden acre and Pusa drum head) under field conditions. The study was performed in herbal garden of Jamia Hamdard, New Delhi. The plants were treated with graded treatments (60,120,180 kg N ha-1) of N alone and in combination with seedling inoculation withAzotobacter. The plants were sampled and tested for various morpho-physiological and biochemical parameters. Chlorophyll content, NR activity, protein content, sugar content and phenol content was found to be significantly higher in plants treated with N in combination in Azotobacter. Thus, the use of Azotobacteras a supplement or biofertilizer in integrated nutrient management systems was highly recommended to minimize the application rates of synthetic fertilizers and attain the goal of sustainable agriculture.

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Section: Introductionmentioning

confidence: 99%

Influence of Integrated Approach of Azotobacter and Nitrogen Fertilizer on Various Morpho-Physiological and Biochemical Parameters of Brassica Oleracea L. var. capitata

Saffeullah

Nabi

Umar

2021

Curr. World Environ

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“…The mechanisms of PGPR-mediated enhancement of plant growth and yield of many crops are not yet fully understood. However, the possible explanations include (i) biological nitrogen fixation [2], (ii) solubilization of mineral phosphates and mineralization of other nutrients [3], (iii) ability to produce or change the concentration of plant hormones like indole acetic acid (IAA), gibberellic acid, cytokinin and ethylene [4]; (iv) antagonism against phytopathogenic microorganisms by producing siderophores, β-1,3-glucanase, chitinases, antibiotics, fluorescent pigment and cyanide [5].…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Plant Growth Promoting Rhizobacteria for Growth Promotion of Rice (Oryza sativa L.) and Wheat (Triticum aestivum)

Ayyaz¹,

Khan

Tabassam³

et al. 2021

PJBB

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The use of rhizobacteria for plant growth enhancement is decades old. Still, in this era of the 21st century, biofertilizers have become the need of the day due to the health and environmental concerns associated with chemical fertilizers and pesticides. Rhizobacteria strains were isolated from the rhizosphere of rice and wheat. The selected bacterial strains' nitrogen fixation, indole acetic acid (IAA) production, phosphorus solubilization, and antifungal activity were determined on morphological, biochemical, and molecular levels. Production of IAA ranged from 6 µg/ml to 29.33 µg/ml. Ethylene production (C2H4/hr) varied from 2 µmoles to 9.8 µmoles. Maximum Phosphorus Solubilization index (7), decrease in pH (4) and Solubilization % age (0.49) was observed in WM-2 (wheat microbe). Promising results were obtained concerning antifungal activity against Rhizoctonia solani and Fusarium sp. The effect of the potential PGPR strains on the germination of rice and wheat was significantly positive in Petri plates. In the case of rice, the highest shoot length (29.27 cm) was observed by inoculation with RPR-33 (Rice isolate), and the most increased root length (9.33 cm) was observed in the treatment inoculated with RPR-42. The highest shoot fresh weight (476.67 mg/plant) was recorded in the treatment inoculated with RPR-42. The maximum root weight was 170 mg/plant in the same treatment. For wheat, all recorded growth parameters were improved significantly by wheat microbe WM-5. All the PGPR isolates showed positive results for growth parameters of wheat and rice on inoculation. So, it is suggested that these PGPR isolates may be used in potential biofertilizers.

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Harnessing green microbiology for sustainable water management, agriculture, and energy generation: Current advances and future prospects

Akinsemolu,

Onyeaka,

Arijeniwa

2024

World Water Policy

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This article presents an in‐depth overview of recent developments and prospects in utilizing green microbiology for sustainable water management. It highlights its vital role across various aspects of water management while underscoring its significance for global development. This article delves deep into microbial processes integral to water management, such as degrading pollutants and using biosensors for quality monitoring of drinking water supplies. Furthermore, the article considers microorganisms' potential roles as biofertilizers and biostimulants in agriculture, their involvement in effluent treatment within microbial communities, and the emerging technologies of microbial fuel cells and nanotechnology. Implementation of microbial‐based approaches presents both challenges and opportunities, including regulatory concerns and public acceptance. Finally, this article reviews key findings and emphasizes research needs related to green microbiology to develop solutions towards cleaner, more sustainable water management solutions in the future.

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Free Living Nitrogen Fixation and Their Response to Agricultural Crops

Cited by 4 publications

References 1 publication

Influence of Integrated Approach of Azotobacter and Nitrogen Fertilizer on Various Morpho-Physiological and Biochemical Parameters of Brassica Oleracea L. var. capitata

Influence of Integrated Approach of Azotobacter and Nitrogen Fertilizer on Various Morpho-Physiological and Biochemical Parameters of Brassica Oleracea L. var. capitata

Isolation and Characterization of Plant Growth Promoting Rhizobacteria for Growth Promotion of Rice (Oryza sativa L.) and Wheat (Triticum aestivum)

Harnessing green microbiology for sustainable water management, agriculture, and energy generation: Current advances and future prospects

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