Application of Bacillus sp. N7 to enhance ozone tolerance of various Oryza sativa in vegetative phase: Possible mechanism and rice productivity

Anusaraporn, Siraphatsorn; Autarmat, Sawitree; Treesubsuntorn, Chairat; Thiravetyan, Paitip

doi:10.1016/j.bcab.2020.101591

Cited by 12 publications

(2 citation statements)

References 40 publications

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“…isolates leads to a slight increase in maximum PSII efficiency (F v /F m ), although that difference was not maintained with time, compared to control plants. Similarly, Anusaraporn et al [44] demonstrated that inoculation of rice plants with Bacillus sp. N7 did not change this ratio.…”

Section: Discussionmentioning

confidence: 95%

Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum

et al. 2021

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Plant-growth-promoting bacteria (PGPB) are gaining attention as a sustainable alternative to current agrochemicals. This study evaluated the impact of three Bacillus spp. (5PB1, 1PB1, FV46) and one Brevibacillus sp. (C9F) on the important crop tomato (Solanum lycopersicum) using the model cv. ‘MicroTom’. The effects of these isolates were assessed on (a) seedlings’ growth and vigor, and (b) adult potted plants. In potted plants, several photosynthetic parameters (chlorophylls (a and b), carotenoids and anthocyanins contents, transpiration rate, stomatal conductance, net CO2 photosynthetic rate, and intercellular CO2 concentration, and on chlorophyll fluorescence yields of light- and dark-adapted leaves)), as well as soluble sugars and starch contents, were quantified. Additionally, the effects on redox status were evaluated. While the growth of seedlings was, overall, not influenced by the strains, some effects were observed on adult plants. The Bacillus safensis FV46 stimulated the content of pigments, compared to C9F. Bacillus zhangzhouensis 5PB1 increased starch levels and was positively correlated with some parameters of the photophosphorylation and the gas exchange phases. Interestingly, Bacillus megaterium 1PB1 decreased superoxide (O2−) content, and B. safensis FV46 promoted non-enzymatic antioxidant defenses, increasing total phenol content levels. These results, conducted on a model cultivar, support the theory that these isolates differently act on tomato plant physiology, and that their activity depends on the age of the plant, and may differently influence photosynthesis. It would now be interesting to analyze the influence of these bacteria using commercial cultivars.

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Section: Discussionmentioning

confidence: 95%

Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum

et al. 2021

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“…Plant growth-promoting bacteria inocula were prepared according to Anusaraporn et al (2020). For plant growthpromoting bacteria inoculation, fresh overnight (24 hr) culture of each bacterial strain containing approximately 1×10 8 colony forming units (CFU)/mL were used as the inoculum.…”

Section: Pot Experimental Preparation Plant Growth-promoting Bacteria...mentioning

confidence: 99%

Role of Bacilli in phytohormone production in rice and grain under different doses of vegetative and generative fertilizer

2023

ANRES

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Importance of the work:The use of plant-growth-promoting bacteria inoculant is a sustainable option to promote rice plant growth and improve the yield. Integrating these bacteria resulting with chemical fertilization may be another relevant option. Objectives: To assess the physiological responses of Pathum Thani 1 rice under the co-application of different fertilizers and plant growth-promoting bacteria. Materials & Methods: A pot experiment was conducted to assess plant growth-promoting ability under different vegetative fertilizers, generative fertilizers and bacteria inocula. The pot experiment was a 2×2×5 factorial experiment in a completely randomized design. Plants were measured for endogenous phytohormones-indole-3-acetic acid (IAA), gibberellic acids (GAs) and salicylic acid (SA)-, macronutrients-nitrogen (N), phosphorous (P) and potassium (K)-and their yield parameters were evaluated. Results: Significant (p < 0.05) increases were observed in the inoculated Pathum Thani 1 rice grain yield (18.16-32.77 g/pot), panicle number (19.50-31.25 panicles/pot), tiller number (28.50-45.88 tillers/pot) and plant height (103.34-120.52 cm). Significant (p < 0.05) endogenous IAA and SA level changes were observed compared to the uninoculated control. GAs were only significantly (p < 0.05) increased in the vegetative phase and not in the generative phase (p > 0.05) compared to the uninoculated control. A significant (p < 0.05) effect in P and K accumulation was observed in plant tissue, but not in N accumulation. Main finding: Additions of plant growth-promoting bacteria Lysinibacillus sp. N5 or Bacillus sp. N7 were the best options to enhance rice growth and yield the most. In addition, adding bacteria decreased the dose of fertilizer required to obtain a higher rice yield. Furthermore, adding bacteria enhanced P and K but not N in the soil under various fertilizer doses, implying that N was in excess for plant growth. Finally, adding bacteria enhanced endogenous phytohormones, such as IAA, GAs and SA, in plant tissue.

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Bacillus as a Versatile Tool for Crop Improvement and Agro-Industry

Mukherjee

Pandey

Parvez

et al. 2022

Bacilli in Climate Resilient Agriculture and Bioprospecting

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Application of Bacillus sp. N7 to enhance ozone tolerance of various Oryza sativa in vegetative phase: Possible mechanism and rice productivity

Cited by 12 publications

References 40 publications

Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum

Effect of Bacillus spp. and Brevibacillus sp. on the Photosynthesis and Redox Status of Solanum lycopersicum

Role of Bacilli in phytohormone production in rice and grain under different doses of vegetative and generative fertilizer

Bacillus as a Versatile Tool for Crop Improvement and Agro-Industry

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