Bioagents and silicon promoting fast early upland rice growth

Sousa, Thatyane Pereira de; Souza, Alan Carlos Alves de; Filippi, Marta Cristina Corsi de; Lanna, Anna Cristina; Cortes, Marcio Vinicius de Carvalho Barros; Pinheiro, Hugo Alves; Silva, Gisele Barata da

doi:10.1007/s11356-017-0753-0

Cited by 19 publications

(14 citation statements)

References 53 publications

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“…These results are similar to that of Taurian et al (2010). Sousa et al (2017) and Filippi et al (2011) used both PGPRs in a concentration of 10 8 cfu.mL -1 in their studies and showed the results of characterization of the strains application. Thus, the formulations tested appear to be sufficient for increasing the shelf life of the studied bacteria.…”

Section: Shelf Life Evaluation Of Bacterial Formulationssupporting

confidence: 83%

“…Excellent results have been obtained in the use of the Brazilian strains, Pseudomonas fluorescens BRM 32111 and Burkholderia pyrrocinia BRM 32113 in experiments performed in vivo and in vitro, including field trials, aiming at both the promotion of growth and the control of rice diseases. The data show suppression of leaf blast and panicle by up to 60 and 33%, respectively, promoting root growth by up to 87% and increasing up to 20% in field productivity (Sousa et al, 2017;Sperandio et al, 2017). Shakih and Sayyed (2015) affirm that commercial success of a bioproduct in suppressing diseases or enhancing plant growth depends on availability and shelf life.…”

Section: Introductionmentioning

confidence: 81%

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Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method

Arriel-Elias¹,

Oliveira²,

Silva-Lobo³

et al. 2018

Afr. J. Microbiol. Res.

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Plant growth promoting rhizobacteria (PGPR) are a specific group of bacteria interacting beneficially with plants. Among the known PGPRs, the species Pseudomonas fluorescens and Burkholderia pyrrocinia have been highlighted in both growth promotion and control of rice diseases. Ensuring the stability of the microorganism during production, formulation, distribution and storage has been a challenge for these species. In this context, the objective of this work was to develop liquid formulations, through a simplified process, that allows increase in the shelf life of these rhizobacteria for commercial application. Both bacteria were tested in 32 formulations under two storage temperature conditions: 8 and 28°C, resulting in 64 treatments for each species, which were evaluated for 180 days. Combinations of the adjuvants: molasses, glycerol, NaCl, PVP, MgSO 4 , K 2 HPO 4 and yeast extract were evaluated. Formulations containing molasses, stored at 8°C, were considered the most efficient in maintaining microbial viability. The method used was considered efficient to select three formulations that allowed maintenance of the concentration of viable cells of P. fluorescens and B. pyrrocinia in 10 8 cfu.mL -1 , for at least 90 and 150 days, respectively, not interfering with bacterial action potential.

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Section: Shelf Life Evaluation Of Bacterial Formulationssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 81%

Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method

Arriel-Elias¹,

Oliveira²,

Silva-Lobo³

et al. 2018

Afr. J. Microbiol. Res.

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“…However, in the Si-enriched paddy soil, the estimated PhytOC fluxes were not correlated ( P > 0.05) with these factors. Zhang et al (2014) showed that the yield of rice was increased 14.5% by the use of 225 kg ha -1 Si fertilizer; when the application of Si fertilizer was increased to 375 kg ha -1 , the yield of the rice increased only by 10.1%. Similarly, Wu et al also recommended the use of 225 kg ha -1 Si fertilizer as the most economical measure (Wu et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…For example, 73% of paddy soils in Zhejiang Province and approximately 60% in Henan Province are Si-deficient (Cai, 2015). Some research has shown that Si fertilizer application can significantly increase the biomass of rice (Wu et al, 2014; Zhang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Silicon Fertilizer Application Promotes Phytolith Accumulation in Rice Plants

et al. 2019

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In this study, a pot experiment was designed to elucidate the effect of varying dosages of silicon (Si) fertilizer application in Si-deficient and enriched paddy soils on rice phytolith and carbon (C) bio-sequestration within phytoliths (PhytOC). The maximum Si fertilizer dosage treatment (XG3) in the Si-deficit paddy soil resulted in an increase in the rice phytolith content by 100.77% in the stem, 29.46% in the sheath and 36.84% in the leaf compared to treatment without Si fertilizer treatment (CK). However, the maximum Si fertilizer dosage treatment (WG3) in the Si -enriched soil increased the rice phytolith content by only 32.83% in the stem, 27.01% in the sheath and 32.06% in the leaf. Overall, Si fertilizer application significantly ( p < 0.05) increased the content of the rice phytoliths in the stem, leaf and sheath in both the Si-deficient and enriched paddy soils, and the statistical results showed a positive correlation between the amount of Si fertilizer applied and the rice phytolith content, with correlation coefficients of 0.998 ( p < 0.01) in the Si-deficient soil and 0.952 ( p < 0.05) in the Si-enriched soil. In addition, the existence of phytoliths in the stem, leaf, and sheath of rice and its content in the Si-enriched soil were markedly higher than that in the Si-deficient soil. Therefore, Si fertilizer application helped to improve the phytolith content of the rice plant.

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“…Compared with traditional rice crops, upland rice has stronger ability of drought resistance and drought tolerance, can adapt to the arid climate, and can greatly save labor and production costs (Kumar and Ladha, 2011;Xia et al 2019). However, up to now, the researches on upland rice mainly focus on the functional genes, genetic diversity and growth promoting microorganisms (Lyu et al 2014;Tuhina-Khatun et al 2015;Ferrari et al 2018;Braga et al 2018;de Sousa et al 2018), and there are few studies on endophytes of upland rice at home and abroad, especially the high-throughput sequencing technology.…”

Section: Introductionmentioning

confidence: 99%

High-throughput sequencing-based analysis of the composition and diversity of endophytic bacterial community in seeds of upland rice

et al. 2020

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Upland rice is an ecotype crop formed by long-term domestication and evolution of rice in the dry land without water layer. Generally, its stem and leaf are thick and luxuriant, its leaf is wide and light, its root system is developed, its root hair is abundant, its osmotic pressure of root and cell juice concentration of leaf are high, and it is drought resistant, heat-resistant and water absorbing. The purpose of this study is to reveal the "core flora" of endophytes in upland rice seeds by studying the diversity and community structure of endophytes in upland rice seeds, and to reveal the impact of soil environment on the formation of endophyte community structure in upland rice seeds by comparing with soil environment microorganisms in upland rice habitats. In this study, the high-throughput sequencing technology based on the Illumina Hiseq 2500 platform was used to study the structure and diversity of endophytic bacterial communities using upland rice varieties collected in different places and soil samples from their unified planting sites as materials. There are 42 endophytic OTUs coexisted in the 14 samples. At the phylum level, the first dominant phyla was Proteobacteria (93.81-99.99%) in all 14 samples. At the genus level, Pantoea (8.77%-87.77%), Pseudomonas (1.15-61.58%), Methylobacterium (0.40-4.64%), Sphingomonas (0.26-3.85%), Microbacterium (0.01-4.67%) and Aurantimonas (0.04-4.34%), which are probably the core microflora in upland rice seeds, served as the dominant genera that coexisted in all upland rice seeds tested. Compared with the soil microbial community structure in the upland rice uniform planting site, it was found that it had little effect on the endophytic community structure in upland rice seeds. This study is of great significance for the isolation, screening, functional evaluation and reaction of some functional microorganisms in upland rice in order to improve its agronomic traits. It also provides a certain reference for the interaction between microorganisms and plants. the adjacent plant tissues. Therefore, endophytes are ubiquitous in the plant host, including the aboveground and underground parts of the plant, even seeds, thus having a positive impact on the plant development (Zinniel et al. 2015; Chebotar et al. 2015). Endophytes can provide a variety of benefits to host plants, especially through multiple functions to improve the growth and health of plants, so that they can be protected from pathogens (Agler et al. 2016; Liu et al. 2017a,b; Xu et al. 2019; Afzal et al. 2019; Sánchez-Cruz et al. 2019). Under different environmental conditions, the communication and interaction between endophyte and plant is stronger than that between rhizosphere bacteria (Coutinho et al. 2015). A number of studies have shown that plant varieties, genotypes and geographical location have a great impact on the establishment of microbial diversity and community structure in plants (Liu et al. 2017a, 2019; Edwards et al. 2015). Although endophyte was discovered more than 100 years ago, its existe...

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Bioagents and silicon promoting fast early upland rice growth

Cited by 19 publications

References 53 publications

Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method

Shelf life enhancement of plant growth promoting rhizobacteria using a simple formulation screening method

Silicon Fertilizer Application Promotes Phytolith Accumulation in Rice Plants

High-throughput sequencing-based analysis of the composition and diversity of endophytic bacterial community in seeds of upland rice

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