Search for Rhizobacteria

Response of Spring and Autumn Sunflower to Chemical and Bio-Fertilizers for Yield and Quality Traits

Muhammad Tahirand Memoona Shehzadi*

A. K. Chaubey and Satyandra Kumar

Bio-management of root knot nematode and root rot disease by antagonistic fungi and rhizobacteria

...ts of four fungi and six rhizobacteria isolates from the rhizosphere of vegetable crops was studied for suppression of root knot nematode, Meloidogyne incognita and wilt fungus, Fusarium oxysporum f. sp. lycopersici on tomato in laboratory and pot culture experiment. All the isolates were isolated by serial dilution and cultured in liquid protein supplemented broth medium and culture filtrates (CF) were prepared. In in-vitro test single eggmasses of uniform si...

Muhammad Zahid Kiani*, Arshad Ali**, Tariq Sultan** and Muhammad Munir Ahmed***

CHARACTERIZATION OF PLANT GROWTH PROMOTING RHIZOBACTERIA ISOLATED FROM ROOT SYSTEM OF SUNFLOWER (HELIANTHUS ANNUS L) GROWN UNDER SALT AFFECTED AREA OF PAKISTAN

...p;Plant growth promoting rhizobacteria (PGPR) directly promote plant growth by providing indole-3-acetic acid (IAA), solubilization of inorganic phosphates, nitrogen fixation and siderophores and other organic acid production, whereas indirectly support plant growth by suppressing plant pathogens. The objective of this study was isolation and characterization of bacterial strains from rhizosphere, endosphere and rhizoplane of sunflower. Thirty six bacterial st...

Tosif Tabassam*, Tariq Sultan**, M.Ehsan Akhtar**, M.Mahmood-ulHassan** and Arshad Ali**

SUITABILITY OF DIFFERENT FORMULATED CARRIERS FOR SUSTAINING MICROBIAL SHELF LIFE

...d plant growth promoting rhizobacteria (PGPR) strains from maize rhizosphere. Different combinations of material were prepared using clay soil (35-50%), fly-ash (30-45%), press mud (5-15%) and lignite (5-15%). Clay soil (53% clay) was used for adhesion purpose but considering free of lump formation an important property of a good carrier, mixing 40% of soil with other material was found suitable. Using 40% of soil, six different treatments were formulated and ...

Muhammad Zahid Kiani*, Tariq Sultan**, Arshad Ali**, Ghulam Qadir*** Imdad Ali Mahmood**, Tauseef Tabassam**, Muhammad Arshad Ullah** and Nasir Abbas*

EFFECT OF PGPR STRAINS ON SUNFLOWER GROWTH AND NUTRIENT CONTENTS UNDER SALINITY STRESS

...p;Plant growth promoting rhizobacteria (PGPR) are potentially useful for stimulating plant growth under harsh environment. A pot trial was conducted to examine the performance of four isolated strains in five treatments viz., KS 44, KS 7, KS 41, KS 42 and KS mix under four different artificially developed -1 salinity levels (5, 8, 10 and 12 dS m ) at National Agricultural Research Centre, Islamabad. Hybrid seeds (SMH 0917) of sunflower (Helianthus annuus L.) w...

Growth, Allometry and Dry Matter Yield of Soybean Genotypes in Response to Seed Inoculation with Plant Growth Promoting Rhizobacteria

Ali Zohaib^1*, Saima Yousaf^1,2, Shakeel Ahmad Anjum¹, Tahira Tabassum¹, Tasawer Abbas³, Wardah Muzaffar¹ and Wasiq Ikram²

..., plant growth promoting rhizobacteria (PGPR) are cheap and excellent alternate and can be applied as seed inoculation to enhance nutrient use efficiency along with reduced nutrient losses. A field experiment was conducted to evaluate the effect of seed inoculation viz. control (no treatment), Rhizobium japonicum (nitrogen fixing bacteria) and Pseudomonas fluorescens (phosphorus solubilizing bacteria) on growth, allometric traits and dry matter yield of differ...

Effect of Seed Inoculation with Plant Growth Promoting Rhizobacteria on Yield and Quality of Soybean

Saima Yousaf^1,2, Ali Zohaib^2*, Shakeel Ahmad Anjum², Tahira Tabassum², Tasawer Abbas³, Sohail Irshad⁴, Usman Javed⁵ and Naila Farooq⁶

.... Plant growth promoting rhizobacteria (PGPR) can be applied to improve the growth and yield by improving nutrient availability to crop plants. A field experiment was carried out to determine the effect of seed inoculation with PGPRs on yield and quality of different genotypes of soybean. Seed inoculation treatments [control (no treatment), nitrogen fixing bacteria (Rhizobium japonicum) and phosphorus solubilizer (Pseudomonas fluorescens)] were applied to thre...

Characterization and Bio-Antagonistic Activity of Rhizobacteria against Fusarium Oxysporum F. Sp. Cepae

Javed Asghar Tariq^1*, Bashir Ahmed², Manzoor Ali Abro², Muhammad Ismail¹, Muhammad Usman Asif¹ and Raza Muhammad¹

Application of PGPR Enhances Development and Nodulation of Vigna Radiata L. Grown under Salt Stress

Muhammad Shafique, Nosheen Noor Elahi*, Muhammad Rashid, Amjad Farooq and Kausar Hussain Shah

...f plant growth promoting rhizobacteria (PGPR) is effective against this stress. Mung bean is an important crop that is used as food. Present experiment was conducted under natural environment to evaluate the effect of PGPR on biomass production, nitrogen and proteins percentage of four mung bean varieties under different NaCI levels in sand culture after 5,7 and 9 weeks of sowing. Both inoculated and uninoculated plants were grown on mineral medium that were N...

Amelioration of Salt Stress in Cicer arietinum L. by Plant Growth Promoting Rhizobacteria

Nosheen Noor Elahi¹, Muhammad Shafique¹, Muhammad Imtiaz², Umer Farooq^3* and Muhammad Rashid¹

...e plant growth promoting rhizobacteria (PGPRs) play important role in eliminating the effect of salinity. Cicer arietinum L. is an important legume crop having high quantity of proteins. In the present study, four varieties (CM44, CM91, CM98 and CM2000) were grown in the presence and absence of PGPR inoculated media and nitrogen in different salinity levels (20, 50, 100, 200 and 300mM NaCl). The biomass production of the varieties CM91 and CM98 increased at 20...

Isolation of Nodule Associated Bacteria for Promotion of Lentil Growth

Muhammad Rasheed*, Tayyaba Naseer, Asma Hassan, Fayaz ul Hassan, Rifat Hayat, Ghulam Jilani, Samman Gul Vaseer and Muhammad Bilal Ali

Impact Assessment of Plant Growth Promoting Rhizobacteria on Growth and Nutrient Uptake of Maize (Zea mays)

Attique Ahmed^1, Tariq Sultan¹, Ghulam Qadir², Obaid Afzal^2*, Mukhtar Ahmed⁵, Shamim-Ul-Sibtain Shah³, Muhammad Asif⁴, Safdar Ali² and Muhammad Zeeshan Mehmood²

...">Plant growth promoting rhizobacteria (PGPR) promote crop growth and seed yield. However, in farm management practices genotype and environmental conditions may also affect the growth and nutrient uptake. PGPR and phosphate solubilizing bacteria (PSB) in combination with synthetic fertilizers can enhance crop productivity and soil fertility. Present experiment aimed to investigate the effect of PGPR and PSB inoculation with T1 Control (Recommended NP), T2 (PG...

Taqi Raza¹*, Sergio de Los Santos Villalobos², Muhammad Shehzad³, Shakeel Imran⁴ and Derly José Henriques da Silva⁵

PGP Characterization of Rhizobacteria Associated with Apple Gourd (Praecitrullus fistulosus L.)

...">Plant growth-promoting rhizobacteria (PGPR) are beneficial group of microorganisms which improve plant and soil health by enhancing nutrient availability and protecting plant against stresses. The current study was carried out to characterization of rhizobacteria associated with Apple Guard (Praecitrullus fistulous L.). Morphological, qualitative and quantitative tests were performed to characterize the PGPR abilities of i...

Improving the Growth and Yield of Maize Through Multi-Strain Inoculation (PGPR) under Saline Conditions

Hafiz Imran Iqbal¹*, Zahir Ahmad Zahir², Obaidur Rehman¹, Rizwan Khalid¹*, Abdul Waheed¹, Raja Abad Raza¹, Shahid Saleem¹, Muhammad Rashid¹, Sarosh Tariq Alvi¹ and Asia Munir¹

...duced through beneficial rhizobacteria that may increase the growth of plants. An experiment in pot was conducted to assess the effect of combined use of rhizobia and plant growth promoting rhizobacteria (PGPR) (containing 1-aminocyclopropane-1-carboxylate (ACC) deaminase) on the growth and yield of maize under salt affected conditions. In pots three levels of salinity were developed i.e. 1.2 (original), 6 and 12dSm¹

Biosolubilization of Phosphate Rock Using Organic Amendments: An Innovative Approach for Sustainable Maize Production in Aridisols - A Review

Noor-us-Sabah¹*, Mukkram Ali Tahir¹, Ghulam Sarwar¹, Muhammad Luqman², Amir Aziz¹, Muhammad Zeeshan Manzoor¹ and Muhammad Aftab³

...f plant growth promoting rhizobacteria etc.

...

Isolation, Purification and Application of Siderophore Producing Bacteria to Improve Wheat Growth

Shabana Ehsan¹*, Aneela Riaz², Muhammad Amjad Qureshi¹, Abid Ali¹, Ifra Saleem³, Muhammad Aftab³, Khalid Mehmood⁴, Fakhar Mujeeb¹, Muhammad Asif Ali¹, Hina Javed¹, Fraza Ijaz¹, Anwar-ul-Haq⁵, Khaliq-ur-Rehman³ and M. Usman Saleem⁴

...d plant growth-promoting rhizobacterial (PGPR) have a siderophore production mechanism. Inoculation with seed soaking of such siderophore-producing bacteria can be a cost-effective biofortification technique. The current study includes the collection of rhizobacterial isolates from wheat, maize, sorghum, millet, and maize rhizosphere soil of Rawalpindi and Sargodha divisions. The screening of bacterial isolates for sideropho...

Evaluation of rhizobacteria as resistance inducers or bio-control agents for the control of Meloidogyne incognita in tomato

A.W. Amin†, A.A. Anter, A.H. Ashoub* and A.S. El-Nuby*

...result of application of rhizobacteria. Antioxidant

enzymes activity for both peroxidase and polyphenol oxidase were elevated in bacteriazied plants as compared

nematode infected plant as well as total phenol content. Results revealed that crude culture suspension of bacteria

was more effective for reducing nematode population followed by cell-free culture filtrates, bacterial live cells and

bacterial dead cells,...

ALLELOCHEMICALS EFFECTS OF SOME WEEDS ON ASSOCIATED PLANTS AND RHIZOBACTERIA

Mohamed A. Balah,Amal H. Bu-Atiq,Helal S. El-Harer

Integrated Effect of Plant Growth Promoting Rhizobacteria with Trichoderma Viride on Root Knot Nematode Infected Eggplant

Marwa M. El-Deriny^1,2*, Rania H. Wahdan¹, Marwa S. Fouad³ and Dina S.S. Ibrahim^1,2*

...e plant growth promoting rhizobacteria (PGPR) on root knot nematode in eggplant.In greenhouse, a standard microbial fertilizer (NPK) and four microbial isolates involved Pseudomonas fluorescens, Serratia marcescens, Bacillus subtilis, and Trichoderma viride were tested and it was found thatthe dual treatments composed of NPK and Pseudomonas fluorescens or T. viride, significantly reduced the total population of root-knot nematode, M. javanica, with a reduction...

Effects of Plant Growth-Promoting Rhizobacteria and Seedling Density on Morphologic Characteristics and Nutrient Content of Corn Fodder

Renny Fatmyah Utamy¹, Ambo Ako¹, Syahdar Baba², Zulkharnaim¹, Sri Gustina¹, Laode Alhamd³, Indrawirawan², Aulia Uswa Noor Khasanah¹, Arif Rahman^4,5, Siti Annisa Sukri⁵, Rara Mufliha⁵, Zyahrul Ramadan⁵ and Purnama Isti Khaerani⁶

...f plant growth-promoting rhizobacteria and seedling density on morphology and nutritional quality of fodder (Maize or Corn). The research was arranged according to a randomized, complete factorial design. Factor A was PGPR levels (0, 5, 10, and 15 ml/l) expressed as P, hereafter and Factor B was the density (0.26, 0.33, 0.40, and 0.47 g/cm²) hereafter refers as D. Parameters observed in the research included germination percentage, plant height, fresh wei...

Optimization of cellulase and chitinase enzymes production by plant growth promoting rhizobacteria

Alaa Fathalla Mohammed

Novel Research in Microbiology Journal (2020), 4(1): 641-652

...y plant growth promoting rhizobacteria (PGPR). Bacteria were pre-isolated from soil and identified as; Pseudomonas fluorescens NBRC (KW1), Serratia liquefaciens ATCC 27592 (EW1), Bacillus subtilis SBMP4 (EF1) and B. megaterium NBRC 15308 (TF2). The effect of different growth parameters including; pH, temperature, carbon and nitrogen sources, and incubation periods were optimized for production of cellulase and chitinase enzymes by the selected bacterial strain...

Bio-control of Chocolate spot disease of Faba bean using potential rhizobacterial strains under filed conditions in Northwestern Ethiopia

Gebeyehu Y. Mengstie^1,2*; Zewdu T. Awlachew²; Atsede M. Degefa²

...ll the

three rhizobacteria significantly reduced the incidence and severity of chocolate spot disease

in both tested varieties (i.e., Local and Dosha), compared with the control. In both faba bean

varieties, the highest disease incidence reduction (%) was observed on the plot treated by P.

chlororaphis GY07; recording 73.07 % and 75.86 % in the Local and Dosha varieties,

respectively. In terms of dise...

Use of rpoB gene phylogenetic marker-based distinction of abiotic stress tolerant and plant-growth promoting Bacillus paralicheniformis isolates from their closely related Bacillus licheniformis

Mohammed Ajdig1,2; Bahia Rached2,3; Ahlam Mbarki1,2; Taha Chouati2,4; Chouhra Talbi1; Elmostafa El Fahime2,4; Marouane Melloul1,2*

Novel Research in Microbiology Journal (2024), 8(3): 2414-2434

...e plant-growth promoting rhizobacteria (PGPR) B. paralicheniformis isolates among the closely related B. licheniformis through molecular typing, helping for the development of clearly-identified PGPR isolates to be used as biofertilizers. A total of 15 rhizobacteria were isolated from the olive rhizosphere soils. These bacterial isolates exhibited various proprieties in terms of abiotic stress tolerance, biofilm formation un...

Plant growth-promoting rhizobacteria (PGPR): selective screening and characterization of drought-tolerant bacteria isolated from drought-prone soils

Osama M. Ghanem1; Nehal Kamal2; Alaa F. Said3*

Novel Research in Microbiology Journal (2024), 8(3): 2469-2490

...p;Plant growth promoting rhizobacteria (PGPR) have evolved to thrive in challenging environments and provide the plants with defense against the harmful impacts of the environmental stressors. The present study aimed to isolate, screen, and identify PGPB obtained from the rhizosphere soil of some field crops at different sites in Ismailia, Egypt. Isolation process was carried out from drought-suffered locations to obtain efficient promising strains adapted to ...

Microbial Bio stimulants as Sustainable Strategies for Enhancing Plant Resistance to Viral Diseases: Mechanisms and Applications

Burhan Khalid¹, Muhammad Umer Javed², Muhammad Atiq Ashraf³, Hafiza Zara Saeed⁴, Musrat Shaheen⁵, Talha Riaz⁶*, Rabiya Riaz⁷ and Shumaila Nawaz³

...omoting bacteria such as rhizobacteria (PGPR) and mycorrhizal fungi, have effectively activated plant systemic resistance mechanisms. These biostimulants not only improve nutrient uptake but also enhance the plant’s innate immune responses against viral pathogens. Recent studies reveal that specific strains of PGPR can induce systemic resistance in various crops, mitigating the effects of infections caused by viruses like Cucumber Mosaic Virus (CMV) and ...