Plant-Associated Bacillus thuringiensis and Bacillus cereus: Inside Agents for Biocontrol and Genetic Recombination in Phytomicrobiome DOI Creative Commons
A. V. Sorokan, В. Ф. Габдрахманова,

З. М. Курамшина

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(23), P. 4037 - 4037

Published: Nov. 30, 2023

Bacillus thuringiensis Berliner (Bt) and B. cereus sensu stricto Frankland are closely related species of aerobic, spore-forming bacteria included in the lato group. This group is one most studied, but it remains also mysterious bacteria. Despite more than a century research on features these ubiquitous bacteria, there lot questionable issues to their taxonomy, resistance external influences, endophytic existence, place multidimensional relationships ecosystem, many others. The review summarizes current data mutualistic Bt with plants, structure phytomicrobiomes including cereus, abilities plant-associated strains improve plant various environmental factors its productivity. Key findings possibility use Cry gene promoter for transcription target dsRNA simultaneous release pore-forming proteins provocation RNA-interference pest organisms allow us consider this microorganisms as unique tools genetic engineering biological control. will open prospects development direct change microbiomes, possibly serve basis regulation entire agroecosystem.

Language: Английский

Biocontrol mechanisms of Bacillus: Improving the efficiency of green agriculture DOI Creative Commons
Nan Zhang, Zhengqi Wang, Jiahui Shao

et al.

Microbial Biotechnology, Journal Year: 2023, Volume and Issue: 16(12), P. 2250 - 2263

Published: Oct. 14, 2023

Abstract Species of the genus Bacillus have been widely used for biocontrol plant diseases in demand sustainable agricultural development. New mechanisms underlying activity revealed with development microbiome and microbe‐plant interaction research. In this review, we first briefly introduce typical mechanisms, such as production antimicrobial compounds, competition niches/nutrients, induction systemic resistance. Then, discussed detail new pathogen quorum sensing interference reshaping soil microbiota. The “cry help” mechanism was also introduced, which plants can release specific signals under attack to recruit root colonization against invasion. Finally, two emerging strategies enhancing efficacy agents, including construction synthetic microbial consortia application rhizosphere‐derived prebiotics, were proposed.

Language: Английский

Citations

49
Recent advances in Bacillus-mediated plant growth enhancement: a paradigm shift in redefining crop resilience DOI
Anil Patani,

Margi Patel,

Shaikhul Islam

et al.

World Journal of Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 40(2)

Published: Jan. 23, 2024

Language: Английский

Citations

19
Serratia spp. as plant growth-promoting bacteria alleviating salinity, drought, and nutrient imbalance stresses DOI Creative Commons
Iryna Kulkova, B. Wróbel, Jakub Dobrzyński

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: March 18, 2024

In agricultural environments, plants are often exposed to abiotic stresses including temperature extremes, salt stress, drought, and heavy metal soil contamination, which leads significant economic losses worldwide. Especially stress drought pose serious challenges since they induce ionic toxicity, osmotic oxidative in plants. A potential solution can be the application of bacteria Serratia spp. known promote plant growth under normal conditions Thus mini-review aims summarize current knowledge on promotion by (under salinity nutrient deficit) highlight areas for development field. So far, it has been proven that strains exhibit a variety traits contributing enhanced tolerance, such as phytohormone production, ACC deaminase activity, nitrogen fixation, P Zn solubilization, antioxidant properties improvement, modulation gene expression. Nevertheless, further research is needed, especially two subjects: elucidating its mechanisms action at molecular level effects indigenous microbiota and, particularly, rhizosphere. both cases, advisable use omics techniques gain in-depth insights into issues. Additionally, some may phytopathogens, therefore studies rule out this possibility recommended prior field trials. It believed improving said stimulate will increase from genus serve an eco-friendly biofertilizer sustainable agriculture more often.

Language: Английский

Citations

18
Biocontrol of fungal phytopathogens by Bacillus pumilus DOI Creative Commons
Jakub Dobrzyński, Zuzanna Jakubowska, Iryna Kulkova

et al.

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: July 25, 2023

Plant growth-promoting bacteria are one of the most interesting methods controlling fungal phytopathogens. These can participate in biocontrol via a variety mechanisms including lipopeptide production, hydrolytic enzymes (e.g., chitinase, cellulases, glucanase) microbial volatile organic compounds (mVOCs) and induced systemic resistance (ISR) triggering. Among bacterial genera frequently studied this aspect Bacillus spp. pumilus . Due to range traits, B. is members that be used So far, number strains exhibit properties against phytopathogens have been described, e.g., HR10, PTB180, SS-10.7, MCB-7, INR7, SE52, SE34, SE49, RST25, JK-SX001, KUDC1732. capable suppressing such as Arthrobotrys conoides , Fusarium solani oxysporum Sclerotinia sclerotiorum Rhizoctonia Fagopyrum esculentum Importantly, promote plant growth regardless whether it alters native microbiota or not. However, order increase its efficacy, research still needed clarify relationship between Despite that, already concluded good candidates environmentally friendly commercially effective agents.

Language: Английский

Citations

31
Screening of cadmium resistant bacteria and their growth promotion of Sorghum bicolor (L.) Moench under cadmium stress DOI Creative Commons

Ying Chen,

Xinlin Wu,

Zhengxin Lin

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 272, P. 116012 - 116012

Published: Jan. 30, 2024

Heavy metal pollution of agricultural soils, especially from cadmium (Cd) contaminationcaused serious problems in both food security and economy. Sorghum bicolor (L.) showed a great potential phytoremediation Cd contamination due to its fast growth, high yield easy harvesting. However, the growth S. plants tends be inhibited under exposure, which limited application for remediation. Plant growth-promoting rhizobacteria may enhance resistance thus improve removal efficiency. In this study, three Cd-resistant bacteria were screened based on acid tolerance identified as Bacillus velezensis QZG6, Enterobacter cloacae QZS3 cereus QZS8, by 16S rRNA sequencing. Inoculation hydroponic with strains or QZS8 significantly promoted biomass sorghum 31.52%, 50.20% 26.93%, respectively, compared those uninoculated exposure. The activity SOD, POD MDA content Cd-stressed reduced 65.74%, 80.91%, when inoculated QZS3. For pot experiment, 47.30%, 19.27% 58.47%, 67.20%, 22.40%, 40.65%, All these increased efficiency 42.16% (QZG6), 18.76% (QZS3) 21.06% (QZS8). To investigate bacterial characteristics associated promotion plants, ability nitrogen fixation, phosphorus solubilization, siderophores production, phytohormones production determined. able fix nitrogen. Phosphorus release was observed QZG6 (inorganic organic phosphorus) phosphorus). Both produce siderophores, while only positive ACC deaminase. produced IAA, SA GA. These results indicated that plant stress, probably through detoxification well regulation N/P nutrient supply phytohormone. present study combined remediation Cd-polluted provide new insight into combining advantages microbes Cd-contaminated soils.

Language: Английский

Citations

13
Response of soil microbiota to various soil management practices in 100-year-old agriculture field and identification of potential bacterial ecological indicator DOI Creative Commons
Ewa Górska, Wojciech Stępień, Edyta Hewelke

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 158, P. 111545 - 111545

Published: Jan. 1, 2024

The study aimed to comprehensively investigate the structural dynamics of a soil microbial community within 100-year agricultural field experiment. experimental design encompasses three distinct management practices, namely monoculture, five–year rotation, and random each with or without incorporation legumes manure. Soil communities were determined by Next-Generation Sequencing (Illumina MiSeq analysis) both V3 V4 hypervariable regions 16S rRNA gene for bacteria Archaea, as well ITS1 fungi. In all soils, dominant bacterial phyla Proteobacteria, Actinobacteria, Acidobacteria, Chloroflexi, orders Actinomycetales, Rhizobiales, Acidimicrobiales, Sphingomonadales. However, fungal Ascomycota, Basidiomycota, Zygomycota, Pleosporales, Eurotiales, Hypocreales, Mortierellales. Compared fallow land, affected soil, reducing ratio oligotrophs (e.g. Acidobacteria Armatimonadetes) copiotrophs (Actinobacteria Gemmatimonadetes). Moreover, contributed an increased number plant growth-promoting groups (PGPB), antagonistic many (e.g., Fusarium spp.) pathogens Bukholderiales, Xanthomonadales). generally in study, there no significant differences between monoculture crop rotations. two taxa can be considered potential indicators "healthy soil": nitrifying Nitrospira spp. whose abundance was strongly dependent on nitrogen, potassium, phosphorus, organic carbon, pH, PGP fungi genus Mortierellla which depended mainly nitrogen pH. Finally, most abundant especially rotation legumes, while soils did not favour these microorganisms. conclusion, various practices affect microbiota thus their ability support land productivity.

Language: Английский

Citations

12
Bacillus cereus sensu lato antimicrobial arsenal: An overview DOI

Louis Morandini,

Simon Caulier,

Claude Bragard

et al.

Microbiological Research, Journal Year: 2024, Volume and Issue: 283, P. 127697 - 127697

Published: March 18, 2024

Language: Английский

Citations

9
Exploring the potential of Bacillus for crop productivity and sustainable solution for combating rice false smut disease DOI Creative Commons
Neha Pandey,

Ramniwas Vaishnav,

Asha Singh Rajavat

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: May 28, 2024

Rice false smut, which is caused by the soil-borne fungal pathogen Ustilaginoidea virens ( U. ), one of most threatening diseases in rice-growing countries including India that causes 0.5–75% yield loss, low seed germination, and a reduction quality. The assessment loss helps to understand relevance disease severity facilitates implementation appropriate management strategies. This study aimed mitigate biotic stress rice employing rhizobacterial-based bioformulation, possesses diverse capabilities as both plant growth promoter biocontrol agent against . Rhizobacteria were isolated from soil rhizospheres healthy smut affected zone. Furthermore, they identified Bacillus strains: B. subtilis (BR_4), licheniformis (BU_7), (BU_8), vallismortis (KU_7) via sequencing. Isolates screened for their potential under vitro conditions. antagonistic revealed inhibited (44.6%), followed BR_4 (41.4%), BU_7 (39.8%), BU_8 (43.5%). Various biochemical promoting attributes, such phosphate Zn solubilization, IAA, ammonium, siderophore, chitinase production, also investigated all selected isolates. isolates was tested field conditions talc-based bioformulation through bio-priming root treatment. application 20% decrease incidence plants treated with (KU_7), 60.5% increase biological yield, 45% grain yield. eco-friendly approach not only controlled but improved quality reduced chaffiness.

Language: Английский

Citations

9
The role of Bacillus species in the management of plant-parasitic nematodes DOI Creative Commons

Prabhakaran Vasantha‐Srinivasan,

Ki Beom Park,

Kil Yong Kim

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 17, 2025

Plant-parasitic nematodes (PPNs), including root-knot (Meloidogyne spp.), cyst (Heterodera and Globodera other economically significant nematode species, pose severe threats to global agriculture. These employ diverse survival strategies, such as dormancy in cysts or robust infective juvenile stages. Consequently, their management is challenging. Traditional control methods, the use of chemical nematicides, are increasingly scrutinized because environmental health concerns. This review focuses on specific mechanisms employed by Bacillus spp., nematicidal compound production, systemic resistance induction, cuticle degradation, target nematodes. offer sustainable solutions for managing promoting soil enhancing microbial diversity nutrient cycling. An integrated approach leveraging Bacillus-based biocontrol proposed maximize efficacy agricultural sustainability.

Language: Английский

Citations

1
Effects of a co-bacterial agent on the growth, disease control, and quality of ginseng based on rhizosphere microbial diversity DOI Creative Commons
Xinyue Li, Qun Liu, Yugang Gao

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: July 8, 2024

Abstract Background The ginseng endophyte Paenibacillus polymyxa Pp-7250 (Pp-7250) has multifaceted roles such as preventing diseases, promoting growth, increasing ginsenoside accumulation, and degrading pesticide residues, however, these effects still have room for improvements. Composite fungicides are an effective means to improve the biocontrol effect of fungicides, but in combination with its symbiotic bacteria on needs be further investigated, mechanism action not been elucidated. In this study, a series experiments was conducted elucidate Bacillus cereus co-bacterial agent yield quality understory ginseng, investigate their action. Results results indicated that P. B. (PB) treatment improved yield, disease prevention, degradation. is PB increased abundance beneficial microorganisms, including Rhodanobacter , Pseudolabrys Gemmatimonas Cortinarius Russula Paecilomyces Trechispora decreased pathogenic Ellin6067 Acidibacter Fusarium Tetracladium Alternaria Ilyonectria rhizosphere soil. agents enhanced function microbial metabolic pathways, biosynthesis secondary metabolites, antibiotics, amino acids, carbon fixation pathways prokaryotes, DNA replication, terpenoid backbone biosynthesis, plant pathogens animal pathogens. Conclusion may potential promote resistance quality,

Language: Английский

Citations

7