Enhanced Tolerance of Chinese Cabbage Seedlings Mediated by Bacillus aryabhattai H26-2 and B. siamensis H30-3 against High Temperature Stress and Fungal Infections

Lee, Young Hee; Jang, Su Jeong; Han, Jiye; Bae, Jin Su; Shin, Hyunsuk; Park, Hyojin; Sang, Mee Kyung; Han, Song; Kim, Kyoung Su; Han, Sang-Wook; Hong, Jeum Kyu

doi:10.5423/ppj.oa.07.2018.0130

Cited by 16 publications

(6 citation statements)

References 63 publications

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“…altitudinis PB46 stood out from the other strains in responding to stress levels. Similar to earlier reports for different Bacillus species ( Paul et al, 2015 ; Lee et al, 2018 ), the growth of the two aforementioned strains was faster at 11% PEG 6000 than under non-stress conditions.…”

Section: Discussionsupporting

confidence: 90%

Application of data integration for rice bacterial strain selection by combining their osmotic stress response and plant growth-promoting traits

Devarajan

Truu²,

Gopalasubramaniam³

et al. 2022

Front. Microbiol.

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Agricultural application of plant-beneficial bacteria to improve crop yield and alleviate the stress caused by environmental conditions, pests, and pathogens is gaining popularity. However, before using these bacterial strains in plant experiments, their environmental stress responses and plant health improvement potential should be examined. In this study, we explored the applicability of three unsupervised machine learning-based data integration methods, including principal component analysis (PCA) of concatenated data, multiple co-inertia analysis (MCIA), and multiple kernel learning (MKL), to select osmotic stress-tolerant plant growth-promoting (PGP) bacterial strains isolated from the rice phyllosphere. The studied datasets consisted of direct and indirect PGP activity measurements and osmotic stress responses of eight bacterial strains previously isolated from the phyllosphere of drought-tolerant rice cultivar. The production of phytohormones, such as indole-acetic acid (IAA), gibberellic acid (GA), abscisic acid (ABA), and cytokinin, were used as direct PGP traits, whereas the production of hydrogen cyanide and siderophore and antagonistic activity against the foliar pathogens Pyricularia oryzae and Helminthosporium oryzae were evaluated as measures of indirect PGP activity. The strains were subjected to a range of osmotic stress levels by adding PEG 6000 (0, 11, 21, and 32.6%) to their growth medium. The results of the osmotic stress response experiments showed that all bacterial strains accumulated endogenous proline and glycine betaine (GB) and exhibited an increase in growth, when osmotic stress levels were increased to a specific degree, while the production of IAA and GA considerably decreased. The three applied data integration methods did not provide a similar grouping of the strains. Especially deviant was the ordination of microbial strains based on the PCA of concatenated data. However, all three data integration methods indicated that the strains Bacillus altitudinis PB46 and B. megaterium PB50 shared high similarity in PGP traits and osmotic stress response. Overall, our results indicate that data integration methods complement the single-table data analysis approach and improve the selection process for PGP microbial strains.

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Section: Discussionsupporting

confidence: 90%

Application of data integration for rice bacterial strain selection by combining their osmotic stress response and plant growth-promoting traits

Devarajan

Truu²,

Gopalasubramaniam³

et al. 2022

Front. Microbiol.

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“…The analysis of the performance of seedlings of this variety inoculated with B. aryabhattai revealed no statistical differences in relation to varieties IAC 911099 and CTC 20 at the water supply frequencies of 30 and 40 days (Table 5). Growth regulators produced by various microorganisms, including bacteria, can act on the development of lateral and adventitious roots, cell division and root and stalk elongation through specific phytohormones such as auxins, cytokinins, gibberellins and ethylenes (Cassán et al, 2014) (Lee et al, 2018), maize (Ahmad et al, 2019) and raspberry (Orhan et al, 2006). These studies reported increased RDM production, stimulation to plant growth and, consequently, increased yield.…”

Section: Resultsmentioning

confidence: 98%

Effect of Bacillus aryabhattai on the initial establishment of pre-sprouted seedlings of sugarcane varieties

May

Santos

Silva

et al. 2021

RSD

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This study proposes to examine the potential use of Bacillus aryabhattai in pre-sprouted seedlings of sugarcane inoculated with the microorganism when subjected to different regimes of water supply after transplanting. The experiment was laid out in a randomized-block design with a complete 3 × 2 × 5 factorial arrangement, in five replicates. The factors were represented by pre-sprouted seedlings of three sugarcane varieties (IAC 911099, RB 855156 and CTC 20), two seedling types (inoculated and not inoculated with B. aryabhattai) and five frequencies of water supply, which provided the ability of return to 100% soil field capacity, at every 0, 10, 20, 30 and 40 days. Plant mortality, plant height, number of leaves, stalk diameter and number of tillers were evaluated throughout the experimental period. At the end of the study, the shoot dry matter (SDM) and root dry matter (RDM) contents of the plants were measured. The number of leaves on the plant was affected only in isolation, according to the cultivar, without effects of the other studied factors. There was a double interaction effect between the factors of variety and inoculation (V*I) for the variables of SDM, stalk diameter and height; and between frequency and inoculation (F*I) for stalk diameter. There was a triple interaction effect between variety, inoculation and frequency (V*I*F) for the RDM variable. Thus, the use of B. aryabhattai as an inoculant in pre-sprouted seedlings of sugarcane at the time of seedling formation can improve plant development after transplanting depending on the cultivar used, especially in IAC 911099 and RB 855156.

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“…Bacillus siamensis C3.8 has inhibitory activity against phytopathogenic fungi such as C. gloeosporioides (Masrukhin et al 2021). B. siamensis H30-3 demonstrated antifungal activities in vitro against C. higginsianum, thereby preventing anthracnose disease in Chinese cabbage (Lee et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Isolation of bacteria displaying potent antagonistic activity against fungi causes anthracnose disease in chili

TRAM,

QUANG,

et al. 2023

Biodiversitas

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Abstract. Tram TTN, Quang HT, Vu NQH, Nguyen PTT, Thi TNM, Phuong TTB, Thi PTD. 2023. Isolation of bacteria displaying potent antagonistic activity against fungi causes anthracnose disease in chili. Biodiversitas 24: 4919-4926. Anthracnose is a common disease on many crops caused by Colletotrichum species, and it leaves serious consequences, especially on chili. Beta-1,3 glucanase is a semi-constitutive hydrolytic enzyme that is involved in the biological regulation of plant pathogens. Its main function is the breakdown of ?-1,3-glucan, a major constituent of the fungal cell wall. In a study conducted in Vietnam's Quang Tri and Thua Thien Hue Provinces, researchers isolated five bacterial strains from soil where chili plants were grown. To induce the production of beta-1,3 glucanase, these isolates were cultivated in a nutrient-rich medium supplemented with 1% laminarin. The activity of beta-1,3-glucanase in the bacterial strains ranged from 0.31 to 1.72 U mL-1, and antagonistic activity against Colletotrichum spp. causes of anthracnose reached from 50.68 to 69.04%. Strain AT4 had strong antagonistic activity against C. scovillei HUCL1, C. siamensis PV6, and CL3 of 76.44, 62.65, and 68.04%, respectively. Molecular identification based on 16S-rRNA sequences showed that the strains were Paenibacillus polymyxa AT4, B. siamensis ML3, B. tequilensis ML4 and ML6, and B. velezensis GL7. AT4 and ML6 are potential strains for the control of anthracnose diseases caused by Colletotrichum spp. on chili peppers.

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Enhanced Tolerance of Chinese Cabbage Seedlings Mediated by Bacillus aryabhattai H26-2 and B. siamensis H30-3 against High Temperature Stress and Fungal Infections

Cited by 16 publications

References 63 publications

Application of data integration for rice bacterial strain selection by combining their osmotic stress response and plant growth-promoting traits

Application of data integration for rice bacterial strain selection by combining their osmotic stress response and plant growth-promoting traits

Effect of Bacillus aryabhattai on the initial establishment of pre-sprouted seedlings of sugarcane varieties

Isolation of bacteria displaying potent antagonistic activity against fungi causes anthracnose disease in chili

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