New Insights on Endophytic Microbacterium-Assisted Blast Disease Suppression and Growth Promotion in Rice: Revelation by Polyphasic Functional Characterization and Transcriptomics

Patel, Asharani; Sahu, Kuleshwar Prasad; Mehta, Sahil; Javed, Mohammed; Balamurugan, A.; Ashajyothi, Mushineni; Sheoran, Neelam; Prakash, Ganesan; Kundu, Aditi; Krishnan, Subbaiyan Gopala; Gogoi, Robin; Kumar, Aundy

doi:10.3390/microorganisms11020362

Cited by 4 publications

(2 citation statements)

References 105 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Evaluation of plant growth variables and ecophysiology trait estimation under greenhouse conditions. Sterilized wheat seeds were soaked in 20 mL of bacterial suspension (10 8 CFU mL -1 ) for 24 h with slow shaking [43], and sown in pots 6,5 cm x 6,5 cm (one seed per pot for six repetitions) filled with 1/3 sterilized sand and 2/3 soil. The pots were stored in a controlled greenhouse under the following conditions: 16/8 h light/dark photoperiod under an illumination of photosynthetic photon flux density 150 µmol m -2 s -1 , a temperature of 23 ± 0.5˚C, and a relative humidity of 65 ± 5%.…”

Section: Seeds Sterilization and Inoculum Preparation For The In Vivo...mentioning

confidence: 99%

Evaluation of Tunisian wheat endophytes as plant growth promoting bacteria and biological control agents against Fusarium culmorum

Saadaoui,

Faize,

Rifai

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

Plant growth-promoting rhizobacteria (PGPR) applications have emerged as an ideal substitute for synthetic chemicals by their ability to improve plant nutrition and resistance against pathogens. In this study, we isolated fourteen root endophytes from healthy wheat roots cultivated in Tunisia. The isolates were identified based from their 16S rRNA gene sequences. They belonged to Bacillota and Pseudomonadota taxa. Fourteen strains were tested for their growth-promoting and defense-eliciting potentials on durum wheat under greenhouse conditions, and for their in vitro biocontrol power against Fusarium culmorum, an ascomycete responsible for seedling blight, foot and root rot, and head blight diseases of wheat. We found that all the strains improved shoot and/or root biomass accumulation, with Bacillus mojavensis, Paenibacillus peoriae and Variovorax paradoxus showing the strongest promoting effects. These physiological effects were correlated with the plant growth-promoting traits of the bacterial endophytes, which produced indole-related compounds, ammonia, and hydrogen cyanide (HCN), and solubilized phosphate and zinc. Likewise, plant defense accumulations were modulated lastingly and systematically in roots and leaves by all the strains. Testing in vitro antagonism against F. culmorum revealed an inhibition activity exceeding 40% for five strains: Bacillus cereus, Paenibacillus peoriae, Paenibacillus polymyxa, Pantoae agglomerans, and Pseudomonas aeruginosa. These strains exhibited significant inhibitory effects on F. culmorum mycelia growth, sporulation, and/or macroconidia germination. P. peoriae performed best, with total inhibition of sporulation and macroconidia germination. These finding highlight the effectiveness of root bacterial endophytes in promoting plant growth and resistance, and in controlling phytopathogens such as F. culmorum. This is the first report identifying 14 bacterial candidates as potential agents for the control of F. culmorum, of which Paenibacillus peoriae and/or its intracellular metabolites have potential for development as biopesticides.

show abstract

Section: Seeds Sterilization and Inoculum Preparation For The In Vivo...mentioning

confidence: 99%

Evaluation of Tunisian wheat endophytes as plant growth promoting bacteria and biological control agents against Fusarium culmorum

Saadaoui,

Faize,

Rifai

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…The genus Microbacterium belongs to the family Microbacteriaceae within the surborder Micrococcineae [132,133]. Microbacterium are nonspore-forming, Gram-positive, and rod-shaped bacteria [134].…”

Section: Streptomyces Griseus; Streptomyces Lydicusmentioning

confidence: 99%

Research Progress on Rhizosphere Microbial Species of Sorghum and Their Impacts on Maximizing Final Yield

Sun¹,

Shahrajabian²

2023

Preprint

View full text Add to dashboard Cite

A large number of studies have indicated that plant community modulate the yield, improve growth and promote development of host plants, and among them rhizosphere growth-promoting bacteria play an important role in increasing crop yield. Bacteria benefit from the plant nutrients provided by the roots, but plants can benefit from their rhizobacteria as well. Rhizobia are considered as the most important candidate for plant growth promotion in comparison with rhizobacteria due to their endophytic nature and nitrogen fixing ability. They can also provide auxins which play a notable function in plant growth and plant-microbe interactions. Bacillus spp., the sporulating Gram-positive bacteria, have important roles in plant growth promotion and induction of systemic resistance. Pseudomonas are Gram-negative aerobic chemoheterotroph and are usually found in the environment. Streptomyces are important groups of soil bacteria from the actinomycetes family. Most of them are efficient rhizosphere and rhizoplane colonizers, and they can also be endophytes colonizing inner tissues of host plants. The present review aims to present the most up-to-date findings and results regarding the effects of plant growth promoting bacteria on yield of different crops, especially sorghum. Furthermore, the mechanisms of the actions of different bacteria briefly illustrated, aiming to present future needs to be addressed in sustainable crop production. Plant growth promoting rhizobacteria inoculation with different plants or treating plants with microbe-to-plant signal constituents can be an effectual technique to stimulate crop growth. They are also active in protecting crops from phytopathogens and environmental stress, plant pathogens and they have positive roles in nutrient cycling.

show abstract

Alpine and subalpine plant microbiome mediated plants adapt to the cold environment: A systematic review

Hou,

Leng,

Zhu

et al. 2024

Environmental Microbiome

View full text Add to dashboard Cite

New Insights on Endophytic Microbacterium-Assisted Blast Disease Suppression and Growth Promotion in Rice: Revelation by Polyphasic Functional Characterization and Transcriptomics

Cited by 4 publications

References 105 publications

Evaluation of Tunisian wheat endophytes as plant growth promoting bacteria and biological control agents against Fusarium culmorum

Evaluation of Tunisian wheat endophytes as plant growth promoting bacteria and biological control agents against Fusarium culmorum

Research Progress on Rhizosphere Microbial Species of Sorghum and Their Impacts on Maximizing Final Yield

Alpine and subalpine plant microbiome mediated plants adapt to the cold environment: A systematic review

Contact Info

Product

Resources

About