scholarly journals COLMENA: A Culture Collection of Native Microorganisms for Harnessing the Agro-Biotechnological Potential in Soils and Contributing to Food Security

Diversity ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 337
Author(s):  
Sergio de los Santos-Villalobos ◽  
Alondra María Díaz-Rodríguez ◽  
María Fernanda Ávila-Mascareño ◽  
Andrea Denisse Martínez-Vidales ◽  
Fannie Isela Parra-Cota
Keyword(s):  
Food Security ◽  
Plant Growth ◽  
Field Trials ◽  
Culture Collection ◽  
Microbial Culture ◽  
Biotechnological Potential ◽  
Global Food Security ◽  
Beneficial Effects ◽  
Plant Growth Promoting

COLMENA is a microbial culture collection dedicated to the characterization, classification, preservation, and transferal of native microorganisms isolated from various agro-systems and other ecosystems in Mexico. This collection aims to protect microbial diversity, reducing soil degradation, but also exploiting its agro-biotechnological potential. So far, COLMENA has isolated and cryopreserved soil microorganisms from different crops in two major agricultural regions in Mexico, the Yaqui Valley, Sonora, and the Fuerte Valley, Sinaloa. COLMENA has specialized in the identification and characterization of microbial strains with metabolic capacities related to the promotion of plant growth and the biocontrol of phytopathogens. Thus, COLMENA has identified several promising plant growth-promoting microbial (PGPM) strains due to their metabolic and genetic potentials and their beneficial effects in vivo and field trials. These findings demonstrate the biotechnological potential of these strains for their future use in profitable agricultural alternatives focused on enhancing global food security. To share the knowledge and results of the COLMENA team’s scientific research, a virtual platform was created, where the database of the studied and preserved microorganisms is available to professionals, researchers, agricultural workers, and anyone who is interested.

scholarly journals Applications of Fungal Strains with Keratin-Degrading and Plant Growth Promoting Characteristics

Agronomy ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 543 ◽  
Author(s):  
Calin ◽  
Raut ◽  
Liliana ◽  
Capra ◽  
Gurban ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Biomass ◽  
Lytic Enzymes ◽  
Tomato Seedling ◽  
Beneficial Effects ◽  
Plant Growth Promoting ◽  
Number Of Leaves ◽  
Stimulate Plant Growth ◽  
Trichoderma Isolates

Protein hydrolysates (PHs) are organic non-microbial biostimulants having beneficial effects on plants. The study was designed to assess the effects on plants by the applications of PHs obtained from Trichoderma isolates grown on keratin wastes. Trichoderma isolates were characterized for indole-3-acetic acid and siderophores production, activity of lytic enzymes, phosphorous solubilization and inhibition of pathogens growth, using qualitative specific tests. Fungal isolates were cultured on a medium with keratin wastes (wool and feathers) to obtain PHs. Fungal PHs were tested in vivo for plant biostimulant action, as follows: (i) seeds germination test; (ii) activation of plant proton pump; (iii) evaluation of effect on tomato seedling growth. PHs from T. asperellum cultured on feathers medium reached the highest values for all parameters recorded (plant height and diameter, number of leaves and branches), with the exception of those for plant biomass, which were maximum for the wool medium. The metabolites released by keratin degradation under the activity of selected T. asperellum isolate improved crop health and productivity. The use of PHs can be a reasonable solution for the environmental pollution of by-products from the food chain, as well as for the replacement of chemical fertilizers with microbial formulations to stimulate plant growth.

Film coating of seeds with Bacillus cereus RS87 spores for early plant growth enhancement

2008 ◽  
Vol 54 (10) ◽  
pp. 861-867 ◽  
Author(s):  
Kanchalee Jetiyanon ◽  
Sakchai Wittaya-Areekul ◽  
Pinyupa Plianbangchang
Keyword(s):  
Plant Growth ◽  
Bacillus Cereus ◽  
Plant Height ◽  
Root Length ◽  
Film Coating ◽  
Field Trials ◽  
Growth Enhancement ◽  
Vegetative Cells ◽  
Plant Growth Promoting ◽  
Growth Promoting

The plant growth-promoting rhizobacterium Bacillus cereus RS87 was previously reported to promote plant growth in various crops in both greenhouse and field trials. To apply as a plant growth promoting agent with practical use, it is essential to ease the burden of routine preparation of a fresh suspension of strain RS87 in laboratory. The objectives of this study were to investigate the feasibility of film-coating seeds with B. cereus RS87 spores for early plant growth enhancement and to reveal the indoleacetic acid (IAA) production released from strain RS87. The experiment consisted of the following 5 treatments: nontreated seeds, water-soaked seeds, film-coated seeds, seeds soaked with vegetative cells of strain RS87, and film-coated seeds with strain RS87 spores. Three experiments were conducted separately to assess seed emergence, root length, and plant height. Results showed that both vegetative cells and spores of strain RS87 significantly promoted (P ≤ 0.05) seed emergence, root length and plant height over the control treatments. The strain RS87 also produced IAA. In conclusion, the film coating of seeds with spores of B. cereus RS87 demonstrated early plant growth enhancement as well as seeds using their vegetative cells. IAA released from strain RS87 would be one of the mechanisms for plant growth enhancement.

scholarly journals An Overview of Metabolic Activity, Beneficial and Pathogenic Aspects of Burkholderia Spp

Metabolites ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 321
Author(s):  
Hazem S. Elshafie ◽  
Ippolito Camele
Keyword(s):  
Secondary Metabolites ◽  
Plant Growth ◽  
Biochemical Characterization ◽  
Bacterial Species ◽  
Promoting Effect ◽  
Important Species ◽  
Beneficial Effects ◽  
Plant Growth Promoting ◽  
Rhizosphere Competence

Burkholderia is an important bacterial species which has different beneficial effects, such as promoting the plant growth, including rhizosphere competence for the secretion of allelochemicals, production of antibiotics, and siderophores. In addition, most of Burkholderia species have demonstrated promising biocontrol action against different phytopathogens for diverse crops. In particular, Burkholderia demonstrates significant biotechnological potential as a source of novel antibiotics and bioactive secondary metabolites. The current review is concerned with Burkholderia spp. covering the following aspects: discovering, classification, distribution, plant growth promoting effect, and antimicrobial activity of different species of Burkholderia, shedding light on the most important secondary metabolites, their pathogenic effects, and biochemical characterization of some important species of Burkholderia, such as B. cepacia, B. andropogonis, B. plantarii, B. rhizoxinica, B. glumae, B. caryophylli and B. gladioli.

scholarly journals Coffee Microbiota and Its Potential Use in Sustainable Crop Management. A Review

2020 ◽  
Vol 4 ◽  
Author(s):  
Benoit Duong ◽  
Pierre Marraccini ◽  
Jean-Luc Maeght ◽  
Philippe Vaast ◽  
Michel Lebrun ◽  
...  
Keyword(s):  
Plant Growth ◽  
Biodiversity Loss ◽  
Present Review ◽  
Coffee Plant ◽  
Coffee Production ◽  
Pests And Diseases ◽  
Beneficial Effects ◽  
Sequencing Technologies ◽  
Plant Growth Promoting ◽  
Potential Use

Intensive coffee production is accompanied by several environmental issues, including soil degradation, biodiversity loss, and pollution due to the wide use of agrochemical inputs and wastes generated by processing. In addition, climate change is expected to decrease the suitability of cultivated areas while potentially increasing the distribution and impact of pests and diseases. In this context, the coffee microbiota has been increasingly studied over the past decades in order to improve the sustainability of the coffee production. Therefore, coffee associated microorganisms have been isolated and characterized in order to highlight their useful characteristics and study their potential use as sustainable alternatives to agrochemical inputs. Indeed, several microorganisms (including bacteria and fungi) are able to display plant growth-promoting capacities and/or biocontrol abilities toward coffee pests and diseases. Despite that numerous studies emphasized the potential of coffee-associated microorganisms under controlled environments, the present review highlights the lack of confirmation of such beneficial effects under field conditions. Nowadays, next-generation sequencing technologies allow to study coffee associated microorganisms with a metabarcoding/metagenomic approach. This strategy, which does not require cultivating microorganisms, now provides a deeper insight in the coffee-associated microbial communities and their implication not only in the coffee plant fitness but also in the quality of the final product. The present review aims at (i) providing an extensive description of coffee microbiota diversity both at the farming and processing levels, (ii) identifying the “coffee core microbiota,” (iii) making an overview of microbiota ability to promote coffee plant growth and to control its pests and diseases, and (iv) highlighting the microbiota potential to improve coffee quality and waste management sustainability.

scholarly journals Draft Genome Sequence of Pantoea ananatis Strain AMG521, a Rice Plant Growth-Promoting Bacterial Endophyte Isolated from the Guadalquivir Marshes in Southern Spain

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Esaú Megías ◽  
Manuel Megías ◽  
Francisco Javier Ollero ◽  
Mariangela Hungria
Keyword(s):  
Plant Growth ◽  
Rice Yield ◽  
Fusaric Acid ◽  
Draft Genome ◽  
Acid Resistance ◽  
Pantoea Ananatis ◽  
Biotechnological Potential ◽  
Acylhomoserine Lactone ◽  
Plant Growth Promoting ◽  
Growth Promoting

The rice endophyte Pantoea ananatis AMG521 shows several plant growth-promoting properties and promotes rice yield increases. Its draft genome was estimated at 4,891,568 bp with 4,704 coding sequences (CDS). The genome encodes genes for N -acylhomoserine lactone (AHL) synthases, AHL hydrolases, hyperadherence ( yidQ , yidP , and yidR ) , fusaric acid resistance, and oxidation of lignin, highlighting its biotechnological potential.

In Vitro and In Vivo Characterization of Plant Growth Promoting Bacillus Strains Isolated from Extreme Environments of Eastern Algeria

2013 ◽  
Vol 172 (4) ◽  
pp. 1735-1746 ◽  
Author(s):  
Asma Ait-Kaki ◽  
Noreddine Kacem-Chaouche ◽  
Marc Ongena ◽  
Mounira Kara-Ali ◽  
Laid Dehimat ◽  
...  
Keyword(s):  
Plant Growth ◽  
Extreme Environments ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Eastern Algeria ◽  
In Vivo Characterization ◽  
Bacillus Strains

Plant growth promoting fluorescent Pseudomonas enhancing growth of sunflower crop

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Sakshi Tewari ◽  
Naveen Kumar Arora
Keyword(s):  
Plant Growth ◽  
Seed Treatment ◽  
Phosphate Solubilization ◽  
Dry Weight ◽  
Fluorescent Pseudomonas ◽  
Plant Growth Promoting ◽  
Sunflower Crop ◽  
Growth Promoting ◽  
Semi Arid Region

<p>Ten bacterial isolates were obtained from the rhizosphere of sunflower crop grown in the semi-arid region of west Kanpur.<br />Isolates were further characterized on the basis of morphological, biochemical and physiological characteristics<br />suggesting them to be the member of group fluorescent pseudomonas. Isolates were further monitored for plant growth<br />promoting traits including IAA, phosphate solubilization, siderophore, nitrogen fixation, HCN, chitinase and β-1-3<br />glucanase activity. Amongst all the isolates, PF17 displayed maximum PGP attributes hence it was selected for doing<br />further in vivo pot study taking sunflower as a test crop. Seed treatment with fluorescent pseudomonas PF17 brought<br />enhancement in root length, shoot length, dry weight and seed yield of sunflower crop in comparison to control (untreated<br />seeds). Hence it might be concluded from the study that fluorescent pseudomonas PF17 contains large number of PGP<br />attributes, and its application contributed in enhancement of sunflower growth leading to better yield. In addition, ability<br />to enhance growth of sunflower with the help of biological means appears to be of great ecological and economic<br />importance.</p>

scholarly journals Genome Sequence of Pantoea sp. Strain 1.19, Isolated from Rice Rhizosphere, with the Capacity To Promote Growth of Legumes and Nonlegumes

2017 ◽  
Vol 5 (30) ◽  
Author(s):  
Esaú Megías ◽  
Fábio Bueno Reis Junior ◽  
Renan Augusto Ribeiro ◽  
Manuel Megías ◽  
Francisco Javier Ollero ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Plant Growth ◽  
Genome Sequence ◽  
Biotechnological Potential ◽  
Coding Sequences ◽  
Homoserine Lactones ◽  
Rice Plants ◽  
Rice Rhizosphere ◽  
Plant Growth Promoting ◽  
Growth Promoting

ABSTRACT Pantoea sp. 1.19, a plant growth-promoting bacterium (PGPB), was isolated from the rhizosphere of rice plants in Spain. Its genome, estimated at 3,771,065 bp, encodes 3,535 coding sequences (CDSs), carrying genes for synthesis of auxins, homoserine lactones, enzymes, siderophores, and quorum sensing. Several CDSs emphasize its biotechnological potential as an agriculture inoculant.

scholarly journals Plant growth promoting rhizobacteria: Beneficial effects for healthy and sustainable agriculture

2016 ◽  
Vol 15 (27) ◽  
pp. 1452-1463 ◽  
Author(s):  
Agossou Noumavo Pac ocirc me ◽  
Adouk egrave Agbodjato Nad egrave ge ◽  
Baba Moussa Farid ◽  
Adjanohoun Adolphe ◽  
Baba Moussa Lamine
Keyword(s):  
Plant Growth ◽  
Sustainable Agriculture ◽  
Plant Growth Promoting Rhizobacteria ◽  
Beneficial Effects ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Effect of plant growth-promoting rhizobacterial composite culture on the growth of chickpea seedlings

Biologija ◽  
2018 ◽  
Vol 64 (2) ◽  
Author(s):  
Jitendra Nag ◽  
Biplab Dash ◽  
Anup Kumar Singh ◽  
Tapas Chowdhury ◽  
Shyam Bihari Gupta ◽  
...  
Keyword(s):  
Plant Growth ◽  
Mixed Culture ◽  
Culture Media ◽  
Culture Collection ◽  
Pot Experiment ◽  
Seedling Test ◽  
Departmental Culture ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Plant Growth Promoting Traits

In the present study, 20 soil and plant samples from 13 villages of Raipur, Durg, and Balod District of Chhattisgarh (India) were collected from chickpea fields. From these samples, a total of 86 isolates including 16 Rhizobium, 40 Azotobacter, 29 Azosprillum, and one PSB were obtained on selective culture media. All the isolates were screened for their plant growth-promoting traits. Three (GmR8, ASL3 & ASL4) out of 86 were finally selected for further studies. One Azotobacter isolate, i.e., Azo137, was selected from the departmental culture collection. Finally, four isolates including GmR8 (Rhizobium), ASL3, ASL4 (Azospirillum), and Azo137 were selected for composite culture formulations. GmR and ASL4 were siderophore-producing isolates, whereas ASL3 and Azo137 were IAA producer along with their ability to fix nitrogen. Five composite cultures were prepared randomly and tested for effect on the growth of chickpea (the seedling test and the pot experiment). Among all the composite culture groups, C2 (GmR8, Azo137, ASL4) significantly increased the root (10.84 cm) and shoot (8.10 cm) length, whereas biomass (3.60 g) was the highest in the case of C1 (GmR8, Azo137, ASL3, ASL4) of seedlings as compared to the control (6.80 cm, 2.60 cm, and 3.30 g, respectively). Overall, the study revealed a better performance of composite or mixed culture over individual bacteria.

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