Endophytes as emphatic communication barriers of quorum sensing in Gram-positive and Gram-negative bacteria—a review

Kumar, Ramappa Venkatesh; Singh, R. P.; Mishra, Prabhash

doi:10.1007/s42398-019-00079-9

Cited by 7 publications

(3 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A study conducted by Panggabean et al (2019) found that nutmeg seeds contain alkaloids, flavonoids, steroids, saponins, tannins and phenolics which have antibacterial properties. Another study reported that the ability to inhibit the growth of pathogenic bacteria was triggered by the secretion of bioactive substances such as malabaricone and rosmarinic acid (Venkatesh et al 2019). In addition, a study conducted by Susilowati et al (2021) also showed that endophytic bacteria isolated from the nutmeg plant also produced chitinase enzymes which not only inhibited the growth of pathogenic bacteria but also inhibited the growth of pathogenic fungi.…”

Section: Resultsmentioning

confidence: 99%

Endophytic bacteria associated with Myristica fragrans Houtt: Improved media, bacterial population, preliminary characterization, and potential as antibacterials

et al. 2022

View full text Add to dashboard Cite

Abstract. Yunita M, Ohiwal M, Dirks CS, Angkejaya OW, Ilsan NA, Sukmawati S. 2022. Endophytic bacteria associated with Myristica fragrans Houtt: Improved media, bacterial population, preliminary characterization, and potential as antibacterials. Biodiversitas 23: 4047-4054. We have investigated a similar study previously and only obtained 4 isolates that were able to inhibit pathogenic bacteria with a very small inhibition index (1.5 mm-3.4 mm) in NA media. Therefore, the current study was conducted by improving the NA media with the addition of 1% peptone and Myristica fragrans filtrate. The study aimed to evaluate the potential of endophytic bacteria as antibacterials in the modified NA media. Endophytic bacteria were isolated from 5 organs of M. fragrans and were grown on Nutrient Agar added with 1% peptone and M. fragrans filtrate. The total bacterial population was analyzed by the TPC method. Preliminary characterization consisted of macroscopic and microscopic observations. Antibacterial test was carried out by agar diffusion method. The total population of endophytic bacteria varied for all organs of M. fragrans, with the highest population was found in the seeds (1x105 CFU/gr), while the least was found in the pulp (9x103 CFU/gr). A total of 10 isolates were selected and preliminary characterization showed that endophytic bacteria had different macroscopic and microscopic characteristics. All isolates were able to inhibit the growth of Escherichia coli ATCC-27853 and Staphylococcus aureus ATCC-29213 with the largest inhibition zone index was obtained by isolate BJ1 (22.5 mm and 23.8 mm), while the smallest was obtained by isolate TD2 (12.5 mm and 13.6 mm) which were still categorized as strong inhibition. The study concluded that the addition of 1% peptone and M. fragrans filtrate in NA media was able to show far better results compared to our previous study and the strong antibacterials can be developed and formulated in the future.

show abstract

Section: Resultsmentioning

confidence: 99%

Endophytic bacteria associated with Myristica fragrans Houtt: Improved media, bacterial population, preliminary characterization, and potential as antibacterials

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The response of endophytes and their mechanism of action relies on the coordination among the microbial community within the plant, a process known as "quorum sensing" [46]. Quorum sensing involves microorganisms interacting with plants based on signals and signal perception mechanisms adopted by both parties [47,48]. Microbes produce sensing signals that trigger intensive action.…”

Section: Performance Analysismentioning

confidence: 99%

Bacterial Endophytes and Their Contributions to Alleviating Drought and Salinity Stresses in Wheat: A Systematic Review of Physiological Mechanisms

Al-Hawamdeh,

Ayad,

Alananbeh

et al. 2024

Agriculture

View full text Add to dashboard Cite

Drought and salinity stresses significantly threaten global wheat productivity, limiting growth and reducing yields, thus endangering food security worldwide. These stresses disrupt physiological processes, impair photosynthesis, and hinder optimal growth and yield by diminishing water uptake, causing osmotic stress, ion toxicity, and oxidative stress. In response, various mitigation strategies have been explored, including breeding for stress-tolerant cultivars, improved irrigation techniques, and the application of exogenous osmoprotectants and soil amendments. Among these strategies, the emergence of rhizospheric and endophytic growth-promoting microorganisms has attracted significant attention. Therefore, a systematic review was undertaken to illustrate the role of endophytic bacteria in enhancing wheat tolerance to drought and salinity stresses. This review analyzes physiological mechanisms and research trends, identifies gaps, and discusses implications for sustainable agriculture. An analysis of the literature related to endophytic bacteria in wheat was conducted using databases of major publishers from 2004 to 2023. The review explores their mechanisms, such as phytohormone production and stress-responsive gene induction, emphasizing their contribution to plant growth and stress resilience. The current research trends indicate a growing interest in utilizing endophytic bacteria to mitigate these stresses in wheat cultivation, with studies focusing on understanding their physiological responses and interactions with wheat plants. Future research should concentrate on elucidating the role of endophytic bacteria in enhancing host plant tolerance to multiple stressors, as well as aspects like endophytic mechanism of action , endophytic lifestyle, and transmission pathways. Overall, endophytic bacteria offer promising avenues for sustainable agricultural practices, aiding in crop resilience and food security amid environmental challenges.

show abstract

“…and Nitromonas sp., whereas autoinducer-2 system which were used by both Gram-positive and Gram-negative bacteria as interspecies communication, was identified in Enterobacter sp. [ 103 ].…”

Section: Microbial Interactions and Chemical Signalling In Plantmentioning

confidence: 99%

Microbe Related Chemical Signalling and Its Application in Agriculture

Hamid

Nadarajah

2022

IJMS

View full text Add to dashboard Cite

The agriculture sector has been put under tremendous strain by the world’s growing population. The use of fertilizers and pesticides in conventional farming has had a negative impact on the environment and human health. Sustainable agriculture attempts to maintain productivity, while protecting the environment and feeding the global population. The importance of soil-dwelling microbial populations in overcoming these issues cannot be overstated. Various processes such as rhizospheric competence, antibiosis, release of enzymes, and induction of systemic resistance in host plants are all used by microbes to influence plant-microbe interactions. These processes are largely founded on chemical signalling. Producing, releasing, detecting, and responding to chemicals are all part of chemical signalling. Different microbes released distinct sorts of chemical signal molecules which interacts with the environment and hosts. Microbial chemicals affect symbiosis, virulence, competence, conjugation, antibiotic production, motility, sporulation, and biofilm growth, to name a few. We present an in-depth overview of chemical signalling between bacteria-bacteria, bacteria-fungi, and plant-microbe and the diverse roles played by these compounds in plant microbe interactions. These compounds’ current and potential uses and significance in agriculture have been highlighted.

show abstract

Endophytes as emphatic communication barriers of quorum sensing in Gram-positive and Gram-negative bacteria—a review

Cited by 7 publications

References 62 publications

Endophytic bacteria associated with Myristica fragrans Houtt: Improved media, bacterial population, preliminary characterization, and potential as antibacterials

Endophytic bacteria associated with Myristica fragrans Houtt: Improved media, bacterial population, preliminary characterization, and potential as antibacterials

Bacterial Endophytes and Their Contributions to Alleviating Drought and Salinity Stresses in Wheat: A Systematic Review of Physiological Mechanisms

Microbe Related Chemical Signalling and Its Application in Agriculture

Contact Info

Product

Resources

About