Potential activities of Bacillus simplex as a biocontrol agent against root rot of Nigella sativa caused by Fusarium camptoceras

Al-Sman, K. Mohamed; Abo-Elyousr, Kamal A. M.; Eraky, Amal; El-Zawahry, A. M.

doi:10.1186/s41938-019-0191-z

Cited by 4 publications

(4 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This study was of particular interest, as it demonstrated the combined antimicrobial and plant-growth-promoting effects of P. simplex isolate 30N-5 in pea (Tables 2 and 3), suggesting that such a combined activity could be more effective under field conditions [53]. Similar results were observed for isolates PHYB1 and PHYB9 in black cumin treatment [54]. Regarding the mode of action, in silico genomic studies indicated the presence of genes involved in the chitin degradation pathway and hydrolytic enzyme production, as well as cell-wall-degrading enzymes such as cellulase, pectinase, and xylanase, all of which are indicators for P. simplex's antimicrobial activity [17].…”

Section: Antimicrobial Activitysupporting

confidence: 73%

“…In vitro assays showed up to a 70% growth inhibition of the plant pest and fungal hyphal thinning [17,53,63], however, compared to B. subtilis, the effects were slightly lower [17]. In planta experiments further confirmed these antifungal properties, greatly reducing dis-ease severity after P. simplex application to the root seedlings of row crops or in black cumin [54,63]. The authors cautioned, however, that the results obtained from in vivo and in vitro antagonistic assays were not always aligned [63], and thus appropriate care should be taken for the screening of biocontrol agents under field conditions.…”

Section: Antimicrobial Activitymentioning

confidence: 83%

“…Regarding the mode of action, in silico genomic studies indicated the presence of genes involved in the chitin degradation pathway and hydrolytic enzyme production, as well as cell-wall-degrading enzymes such as cellulase, pectinase, and xylanase, all of which are indicators for P. simplex's antimicrobial activity [17]. Scanning electron microscopy studying the interaction between P. simplex and F. camptoceras demonstrated the bacterial adhesion to the fungus and the colonization of hyphae, causing tissue maceration [54].…”

Section: Antimicrobial Activitymentioning

confidence: 99%

See 2 more Smart Citations

Simply Versatile: The Use of Peribacillus simplex in Sustainable Agriculture

Manetsberger,

Caballero Gómez,

Soria-Rodríguez

et al. 2023

Microorganisms

View full text Add to dashboard Cite

Peribacillus simplex is a Gram-positive, spore-forming bacterium derived from a vast range of different origins. Notably, it is part of the plant-growth-promoting rhizobacterial community of many crops. Although members of the Bacillaceae family have been widely used in agriculture, P. simplex has, so far, remained in the shadow of its more famous relatives, e.g., Bacillus subtilis or Bacillus thuringiensis. Recent studies have, however, started to uncover the bacterium’s highly promising and versatile properties, in particular in agricultural and environmental applications. Hence, here, we review the plant-growth-promoting features of P. simplex, as well as its biocontrol activity against a variety of detrimental plant pests in different crops. We further highlight the bacterium’s potential as a bioremediation agent for environmental contaminants, such as metals, pesticide residues, or (crude) oil. Finally, we examine the recent developments in the European regulatory landscape to facilitate the use of microorganisms in plant protection products. Undoubtedly, further studies on P. simplex will reveal additional benefits for agricultural and environmentally friendly applications.

show abstract

Section: Antimicrobial Activitysupporting

confidence: 73%

Section: Antimicrobial Activitymentioning

confidence: 83%

Section: Antimicrobial Activitymentioning

confidence: 99%

See 1 more Smart Citation

Simply Versatile: The Use of Peribacillus simplex in Sustainable Agriculture

Manetsberger,

Caballero Gómez,

Soria-Rodríguez

et al. 2023

Microorganisms

View full text Add to dashboard Cite

show abstract

“…For example, we identify a significant peak of association in the A07p36280.1_BnaRCC gene (encoding a deoxyribonucleoside kinase: ATDNK) to be associated with bacterial species richness (Dataset S11, S12). Interestingly, we found a significant peak on chromosome 9 to be associated with the bacterial species Bacillus simplex (Dataset S11, S12) described to be a biocontrol agent against Fusarium fungal pathogens and other plant pathogens as most Bacillus species (19, 20). The peak fell in the A09p41890.1_BnaRCC gene, whose A. thaliana ortholog correspond to the TIP41-like protein that was shown to be involved in the plant defense against bacterial pathogens (21).…”

Section: Resultsmentioning

confidence: 93%

Plant genetic bases explaining microbiota diversity shed light into a novel holobiont generalist gene theory

Maillet,

Norest,

Kautsky

et al. 2023

Preprint

View full text Add to dashboard Cite

Plants as animals are strictly associated with a cortege of microbial communities influencing their health, fitness and evolution. Therefore, scientists refer to all living organisms as holobionts; complex genetic units that coevolve simultaneously. This is what has been recently proposed as the hologenome theory of evolution. This exciting and attractive theory has important implications on animal and plant health; however, it still needs consistent proof to be validated. Indeed, holobionts are still poorly studied in their natural habitats where coevolution and natural selective processes occur. Compared to animals and crops, wild plant populations are an excellent and unique model to explore the hologenome theory. These sessile holobionts have strictly coevolved with their microbiota for decades and natural selection and adaptive processes acting on wild plants are likely to regulate the plant-microbe interactions. Here we conducted for the first time a microbiota survey, plant genome sequencing and Genome-Environmental Analysis (GEA) of 26 natural populations of the non-model plant speciesBrassica rapa. We collected plants over two seasons in Italy and France, and analyzed the microbiota on two plant compartments (root and rhizosphere). We identified that plant compartment and season modulateB. rapamicrobiota. More importantly, when conducting GEA we evidenced neat peaks of association correlating with both fungal and bacterial microbiota. Surprisingly, we found 13 common genes between fungal and bacterial diversity descriptors that we referred under the name of Holobiont Generalist Genes (HGG). These genes might strongly regulate the diversity and composition of plant microbiota at the inter-kingdom level.Significance StatementThe novel hologenome concept claims that hosts and their associated microbes (considered as holobionts) are a unique evolutionary unit on which natural selection acts. Thus, the hologenome theory assumes that hosts and microbiomes simultaneously coevolve. This novel vision of universal evolutionary entities is promising for both animal and plant health purposes. However, it is still quietly controversial as it suffers from a lack of tangible evidence. How can we enrich the debate on holobionts? How can we translate this concept in discoveries that can change farming practices? Our study is filling the gaps of the hologenome theory by showing that certain genes under natural selection and regulating plant microbiota are generalist in response to fungal and bacterial communities.

show abstract

Plant Growth-Promoting Rhizobacteria (PGPR): A Credible Tool for Sustainable Agriculture

Bhardwaj,

Khanna,

Sharma

et al. 2024

Molecular and Physiological Insights Into Plant Stress Tolerance and Applications in Agriculture- Part 2

View full text Add to dashboard Cite

Modern agricultural practices rely on the excessive use of chemical fertilizers to increase crop yields to meet the growing population's demand. It has exploited the inherent biological potential of soil and plant systems. Sustainable agricultural practices focus on equal attention to soil and plant health. Plant growthpromoting rhizobacteria (PGPR) serve the plants by combating abiotic and biotic stressors in the environment. These microorganisms aid plants in multiple ways by colonizing the plant roots. They work effectively as biofertilizers and as biocontrol agents and help in fostering plant growth through either direct (potassium and phosphorous solubilization, siderophore production, nitrogen fixation) or indirect (production of VOCs, antibiotics, lytic enzymes) mechanisms. To upgrade their application to agro-ecosystems, modern technologies are being worked out. These aim at improving the efficacy of PGPR and uplifting agricultural sustainability. Therefore, in this book chapter, the role and mechanism of PGPR as soil health boosters and plant growth enhancers were discussed. Further, it sheds light on recent developments made to strongly present PGPR as a potent candidate for green agriculture.

show abstract

Potential activities of Bacillus simplex as a biocontrol agent against root rot of Nigella sativa caused by Fusarium camptoceras

Cited by 4 publications

References 21 publications

Simply Versatile: The Use of Peribacillus simplex in Sustainable Agriculture

Simply Versatile: The Use of Peribacillus simplex in Sustainable Agriculture

Plant genetic bases explaining microbiota diversity shed light into a novel holobiont generalist gene theory

Plant Growth-Promoting Rhizobacteria (PGPR): A Credible Tool for Sustainable Agriculture

Contact Info

Product

Resources

About