Bakaye Doumbia

Institut d'Économie Rurale

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Amadou Hamadoun Babana

Université des Sciences, des Techniques et des Technologies de Bamako

Adounigna Kassogué

Université des Sciences, des Techniques et des Technologies de Bamako

Rokiatou Fané

Université des Sciences, des Techniques et des Technologies de Bamako

Sognan Dao

Université des Sciences, des Techniques et des Technologies de Bamako

Djénéba Ouattara

Université des Sciences, des Techniques et des Technologies de Bamako

Ibrahima Mallé

Université des Sciences, des Techniques et des Technologies de Bamako

Djeneba Nantoumé

Université des Sciences, des Techniques et des Technologies de Bamako

Amadou Dıcko

Université de Lorraine

Salimatou Samaké

Université des Sciences, des Techniques et des Technologies de Bamako

Ousmane Diarra

Université des Sciences, des Techniques et des Technologies de Bamako

Cooperative Institutions

Université des Sciences, des Techniques et des Technologies de Bamako

University of Bamako

Mali-Folkecenter

Institut d'Économie Rurale

University of the Sciences

Université Joseph Ki-Zerbo

Centre Hospitalier Universitaire de Cocody

Hôpital Principal de Dakar

Institut de l'Environnement et Recherches Agricoles

University of Göttingen

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Endophytic Bacteria-based Biostimulant Improved Rice (Oryzae sativa L.) Growth and Production in Mali

South Asian Journal of Research in Microbiology (2023)

Djeneba Nantoumé Adounigna Kassogué Sognan Dao Amadou Dıcko Djénéba Ouattara

Aims: Rice (Oryza sativa L.) is usually the staple food of more than half of the world's population, and in particular that of Mali. Mali is among the largest producers of rice in West Africa. But also given the in-population growth and in consumption, Mali is forced to resort to imports to cover its rice needs, thus 45% of the rice sold on the national market comes from imports. For self-sufficiency in rice, the aim of this research is to formulate a biostimulant with high capacity to improve rice growth and production in Mali. Study Design: This experimental research involving a Malian local rice cultivar named Kogoni and biostimulant endophyte bacteria isolated from rice in Mali. Pace and Duration of Study: This research was carried out in greenhouse at LaboREM-Biotech and in the field at the Office of irrigated perimeters of Baguineda (OPIB) for 3 years. Study Design: To achieve this objective: endophyte bacteria with high plant growth promotion activities were selected from bacterial collection of LaboREM, biostimulants composed with selected endophytes were formulated, formulated biostimulants were tested in greenhouses and fields to prove their capacities to improve rice growth and production. Results: A total of five isolates, including 3 from Xoo and 2 from Xoc, were isolated in Niono from two varieties of rice: Kogoni91-1 and Adny11. No isolate characteristic of Xanthomonas oryzae was observed on samples from Baguineda. The three selected rice endophytes were tested in vitro to assess their effectiveness in controlling Xoo and Xoc. Following this test, 100% of the endophytes showed significant antimicrobial activity against Xoo and Xoc with an inhibition diameter varying between 6 and 28.5 mm. endo Ad9 was selected for its strong ability to inhibit the growth of both pathogens at the same time.

Staple food

Endophyte

10.9734/sajrm/2023/v17i1322

Cite

Citations (0)

Screening of rice endophytic natives biofertilizers with plant growth-promoting characteristics

African Journal of Agricultural Research (2021)

Amadou Dıcko Djeneba Nantoumé Djénéba Ouattara Adounigna Kassogué Rokiatou Fané

In Mali, rice cultivation is faced with declining yields due to insufficient soil nutrients and diseases with yield losses of up to 80%. The use of endophytic bacteria and fungi is a more ecological and effective alternative compared to chemicals. This study aims to select at least one endophytic rice bacterium in combination with mycorrhizal fungi to improve the rice production in Mali and effectively control the growth of Xanthamos oryzae. This selection focused on: (i) the isolation of endophytes and (ii) the identification of PGP traits and their enzymatic productions. Thirty seven (37) endophytic bacteria were successfully isolated from rice roots (10 isolates) and seeds (27 isolates) (Table 1). Among the strains isolated, 24 and 29 isolates showed antibiosis activities, respectively against XOO and XOOC, 24 and 12 isolates showed, respectively chitin and melanin activities, and 20 isolates produced siderophore. All inoculated rice roots with the endophytic bacteria showed a rice growth-promoting ability. In vitro selection made it possible to retain 6 isolates (DK1, DK2, DK3, DK4, REM2 and REM9). An 18.4% increase in grain weight per plant of rice and 17.14% in yield per hectare for the treatments inoculated with DK4. The size of the plants, the number of fertile thalli, the biomass (fresh and dry) were respectively improved by 8.48, 10.1, 11.82 and 18.43% for the treatments inoculated with DK4 followed by REM9. All agronomy parameters measured were significantly increased by bacterial endophytes compared to the controls. These results showed that bacterial endophytes with high PGP activities improve host-plant growth traits and can be used as biofertilizers. Key words: Bacterial endophytes, rice, biofertilizer, plant growth, Mali.

Antibiosis

Biofertilizer

Hectare

Azotobacter

10.5897/ajar2020.15191

Cite

Citations (3)

Improvement of Agronomic Parameters of Rice Plants Infected by Rice Yellow Mottle Virus (RYMV) Using Plant Extracts

Annual Research & Review in Biology (2025)

Bakaye Doumbia Sognan Dao Adounigna Kassogué Djénéba Ouattara Djeneba Nantoumé

Aims: The aim of this study was to assess the effect of plant extracts Azadirachta indica, Piper nigrum L, Acacia gummifera, Combretum micranthum, and Clenodium vulgare L on rice yellow mottle virus in rice. Study Design: The experiment was conducted in a Randomized Complete Block Design (RCBD) with five repetitions. The blocking factor was the sunshine. Place and Duration of Study: The study was carried out at the Microbiology and Microbial Biotechnology Research Laboratory (LaboREM-Biotech) of the Faculty of Sciences and Techniques, between June and November 2020. Methodology: The rice variety Kogoni91-1, which is highly susceptible to rice yellow mottle, was grown under greenhouse at the LaboREM-Biotech, inoculated with a highly virulent virus from the laboratory's collection and treated with plant extracts. Results: The results showed that rice plants treated with the combination of plant extracts from C. micranthum, A. indica, and C. vulgare recorded higher grain and aerial biomass yields than the positive control and very close to those of the negative control. Similarly, plants treated with black pepper extracts showed a number of spikelets, a yield and an aerial biomass higher than those of the positive control and very close to those of the negative control. Conclusion: Using plant extracts to combat rice yellow mottle could be an alternative to the application of chemical pesticides harmful to human and animal health.

Azadirachta

Mottle

10.9734/arrb/2025/v40i22196

Cite

Citations (0)

Selected Actinomycetes as Potential Biostimulant of Eggplant (Solanum melongena L) in Mali

Microbiology Research Journal International (2024)

Adounigna Kassogué Moussa Diallo Ibrahima Mallé Pauline Ouédraogo Kangaye Amadou Diallo

Aims: This study aims to formulate at least one efficient biostimulant based on actinomycetes that promotes good eggplant growth in Mali. Study Design: The experimental design was a completely randomized block design with three replications and four treatments randomly distributed. The treatments were three Actinomycete strains (Act, S1 and St1) and a non inoculated control and the mode of application (inoculation or spraying) of these treatments were considered as blocking factor. Place and Duration of Study: The trials were conducted in Bamako, in the Greenhouse of the LaboREM-Biotech situated on the colline of Badalabougou. Methodology: Eggplant seeds inoculated or not with Actinomyces sp. Ts1, Actinomyces sp. S1 and Actinomyces sp. Act; were randomly sown in plastic pots filled with approximately 2.50 kg of air-dried soil. The first block sown with coated seeds and the second with non-inoculated seeds and seedlings from them pulverized. Leaf length, leaf area, leaf diameter, leaf area, leaf fresh weight, leaf dry weight, root fresh weight, root dry weight, plant height and root length were determined. Results: Eggplant seed inoculated with all the tested Actinomycetes strains had significantly enhanced leaf length, leaf diameter, leaf area, leaves fresh weight. The highest results were obtained with the strain Act, followed by strain St1. Sprayed treatment improved eggplant leaf length, leaf diameter, leaf area, leaves fresh weight, leaves dry weight, root fresh weight, root dry weight; compared to the coated treatment Conclusion: Field application of actinomyctes may reduce production cost, by increasing eggplant growth and fruit yield while reducing production cost. The present work showed that Act and Ts1 using spray method were best suited for eggplant. Actinomyces sp. Act produced the highest leaf length, leaf diameter, leaf area, leaves fresh weight. Therefore, Actinomyces sp. Act is suggested as bioinoculant for eggplant.

Melongena

10.9734/mrji/2024/v34i111497

Cite

Citations (0)

A Malian Rice Seed Endophyte Bacteria Control Efficiently the Growth of Xanthomonas oryzae pv oryzae and Xanthomonas oryzae pv oryzicola

South Asian Journal of Research in Microbiology (2023)

Djénéba Ouattara Sognan Dao Amadou Dıcko Adounigna Kassogué Djeneba Nantoumé

Aims: In Mali, rice (Oryza sativa L.) is a very important cereal in the food system and important losses in rice production are caused by bacterial diseases. Despite the important rice losses in production and the proven ability of some bacteria to control rice pathogens, in Mali very few studies have been carried out in biocontrol. With the aim of improving food security, the objective of this work is to select, at least one endophyte bacteria with great capacity to inhibit the growth Xanthomonas oryzae pv oryzae and Xanthomonas oryzae pv oryzicola. Study Design: This experimental research involving a Malian local rice cultivar named Kogoni and biocontrol endophyte bacteria isolated from rice in Mali. Pace and Duration of Study: This research was carried out in greenhouse at LaboREM-Biotech and in the field at the Office of irrigated perimeters of Baguineda (OPIB) for 3 years. Study Design: To achieve this objective, pathogenic bacteria (Xoo and Xoc) circulating in rice fields of Mali were identified, endophyte bacteria from the bacterial collection of the LaboREM with high antagonistic activities against the identified pathogens were selected, and the efficacy of the selected endophytes to inhibit the growth of these pathogens in vitro were tested. Results: A total of five isolates, including 3 from Xoo and 2 from Xoc, were isolated in Niono from two varieties of rice: Kogoni91-1 and Adny11. No isolate characteristic of Xanthomonas oryzae was observed on samples from Baguineda. The three selected rice endophytes were tested in vitro to assess their effectiveness in controlling Xoo and Xoc. Following this test, 100% of the endophytes showed significant antimicrobial activity against Xoo and Xoc with an inhibition diameter varying between 6 and 28.5mm. endo Ad9 was selected for its strong ability to inhibit the growth of both pathogens at the same time.

Endophyte

Xanthomonas

10.9734/sajrm/2023/v17i2323

Cite

Citations (0)

Genetic diversity of rice yellow mottle virus from Niger Office and Selingue Development Rural Office in Mali

Journal of General and Molecular Virology (2018)

Salimatou Samaké Diakaridia Traoré Oumarou Sala Goita Soungalo Sarra Sognan Dao

Virus is the most constraint of rice production in West Africa. Genetic diversity of rice yellow mottle virus (RYMV) was assessed in two rice growing areas of Mali. Forty-three (43) infected rice leaf samples were collected from five locations within the Niger Office and Selingue Development Rural Office rice’s growing areas. The infected samples were confirmed by Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) using primers pair Prymv1 and Prymv2. A total of twenty-six RYMV isolates were obtained and classified into two genotypes A and B with Prymv1 and one genotype with Prymv2. Sequencing of the cDNA fragments with Prymv2 shared isolates into three distinct groups I, II and III. Most of the isolates were under Group I whereas isolates from the Selingue Development Rural Office area and Moussa-Were (Niger Office) area constituted respectively Groups II and III. This study provided baseline data for monitoring the genetic diversity of rice yellow mottle virus in the two rice-growing areas of Mali which could contribute to strategies development for the disease control. Key words: Genetic diversity, reverse transcriptase polymerase chain reaction (RT-PCR), rice yellow mottle virus (RYMV), sequencing, Mali.

10.5897/jgmv2018.0072

Cite

Citations (1)