Profiles of <i>Bacillus</i> spp. Isolated from the Rhizosphere of Suaeda glauca and Their Potential to Promote Plant Growth and Suppress Fungal Phytopathogens

Lü, Ping; Jiang, Ke; Hao, Yaqiao; Chu, Wanying; Xu, Yizhuang; Yang, Jiayao; Chen, Jiale; Zeng, Guohong; Gu, Zhouhang; Zhao, Hongxin

doi:10.4014/jmb.2105.05010

Cited by 12 publications

(6 citation statements)

References 39 publications

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“…In soil, Bacillales range from 0.2% to 0.9%, while in the rhizospheres they range from 3.5% to 26.5%. Many members of Bacillales are known to be associated with plant roots and to play important roles in promoting plant growth and protecting plants against phytopathogenic microorganisms (Lu et al, 2021), thus, this may be their role in the rhizosphere of C. dodecandra ; although further research would be necessary to prove this.…”

Section: Resultsmentioning

confidence: 99%

Divergence in the soil and rhizosphere microbial communities of monoculture and silvopastoral traditional C. dodecandra agroforestry systems in Yucatan, Mexico

López‐Ramírez

Estrada‐Medina

Ferrer

et al. 2023

Soil Use and Management

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Numerous works have reported the impact on soil properties and microbial communities of intensive soil management, but very little is known about the impact caused by traditional agroforestry systems carried out by smallholders. To investigate whether the different smallholder's management between a monoculture plantation of Cordia dodecandra trees and a Silvopastoral system has led to a divergence in these ecosystems, soil properties, as well as soil and Cordia dodecandra rhizosphere microbial communities were analysed by MiSeq amplicon sequencing. The main findings were (i) Large variation in the soil properties of the Silvopastoral system suggests that it has a greater heterogeneity; (ii) Organic carbon, organic matter, carbonates, nitrogen, inorganic phosphorous and calcium, was significantly higher in the soil of the Silvopastoral system. (iii) The relative abundance of the major prokaryotic orders in soil and rhizospheres displayed small differences between the two agroforestry systems, and diversity indexes were slightly higher in the Silvopastoral system. (iv) The fungal orders Hypocreales and Pleosporales were more abundant in the Silvopastoral system than in the monoculture. Other evaluated parameters showed only minor or no difference. Thus, the main conclusion is that these soils have diverged in some properties and fungal orders, but not in their prokaryotic communities. To our knowledge, this is the first report on the divergence in soil properties and microbiota of these two extended smallholder agroforestry systems and therefore can serve as reference for future works.

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Section: Resultsmentioning

confidence: 99%

Divergence in the soil and rhizosphere microbial communities of monoculture and silvopastoral traditional C. dodecandra agroforestry systems in Yucatan, Mexico

López‐Ramírez

Estrada‐Medina

Ferrer

et al. 2023

Soil Use and Management

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“…In microbiota research, sequencing has been widely used for different types of samples [50,51]. It has greatly promoted research on the gut microbiota, genital microbial dysbiosis and the rhizosphere microecosystem, and in many other scientific fields [39,52,53]. Microbial culture is a traditional method that can provide invaluable resources for experimental validation concerning phenotype, ecology and antimicrobial susceptibility [54].…”

Section: Discussionmentioning

confidence: 99%

Characterization of the follicular fluid microbiota based on culturomics and sequencing analysis

Wei

Zhou

et al. 2023

Journal of Medical Microbiology

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Introduction. The human oocyte microenvironment is follicular fluid, which is important for follicle growth, ovulation and maturation of the oocyte. The micro-organisms present in follicular fluid could be a predictor of in vitro fertilization outcomes. Hypothesis/Gap Statement. Women with follicular fluid colonized with micro-organisms can be asymptomatic, but the presence of some genera in the follicular fluid correlates with in vitro fertilization. Aim. To confirm the existence of micro-organisms in follicular fluid, and to profile the micro-organisms present in follicular fluid sampled from women undergoing in vitro fertilization with different outcomes. Methodology. Women undergoing in vitro fertilization (n=163) were divided into different subgroups according to their in vitro fertilization outcomes. Their follicular fluid samples were collected, and among them, 157 samples were analysed by 16S rDNA sequencing, and 19 samples were analysed using culturomics. Results. The culturomics results suggested that the 19 follicular fluid samples were not sterile. The isolation rates for Streptococcus , Finegoldia and Peptoniphilus were >50 % in the 19 samples. Linear discriminant analysis effect size analysis showed differential bacteria abundance according to the pregnancy rate, the rate of normal fertilization, the rate of high-quality embryos and the rate of available oocytes. The sequencing results showed that micro-organisms could be detected in all 157 samples. Pseudomonas , Lactobacillus , Comamonas , Streptococcus and Acinetobacter were detected in all of the samples, but with a wide range of relative abundance. Pseudomonas , Lactobacillus , Ralstonia and Vibrio constituted a notable fraction of the microbiota. Conclusions. Follicular fluid is not sterile. Micro-organisms in follicular fluid could be a predictor of in vitro fertilization outcomes.

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“… 40 PGPR strains are capable of promoting plant growth by suppressing phytopathogens and alleviating abiotic stress to promote plant growth. 41 Some PGPR with ACCD producing promoted grow of plants under salinity stress due to lowering ethylene accumulation of their hosts. 42 …”

Section: Discussionmentioning

confidence: 99%

Identification of endophytic fungi with ACC deaminase-producing isolated from halophyte Kosteletzkya Virginica

Wang

Tian

et al. 2022

Plant Signaling & Behavior

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Seashore mallow ( Kosteletzkya virginica ), as a noninvasive perennial halophytic oilseed-producing dicot, is native from the Gulf to the Atlantic coasts of the U.S. The purpose of our research was to investigate 1-aminocyclopropane-1carboxylic acid deaminase (ACCD) producing endophytic fungi from K.virginica . A total of 59 endophytic fungal strains, isolated from roots in K.virginica of seedlings, were grouped into 12 genera including in Penicillium, Aspergillus, Fusarium, Trichoderma, Rhizopycnis sp., Ceriporia Donk, Trametes sp., Schizophyllum commune sp., Alternaria, Cladosporium, Cylindrocarpon , and Scytalidium according to sequences of ITS. The ACD activity of 10 endophytic fungi isolated was detected. T.asperellum had the highest ACC deaminase activity among all 10 isolated genera of fungal strains, followed by T. viride . Dry weight and fresh weight of plant , plant height, root length, SOD activity, and chlorophyll content of wheat and soybean inoculated with T.asperellum or T. viride was increased compared with non-inoculated control plants under non salt or salt stress. Further analysis showed that T.asperellum or T.viride strains induced downregulation of the expression of ethylene synthesis-related genes such as ACC oxidase (ACO) and ACC synthase (ACS), thereby reducing ethylene synthesis and damage to plants under salt stress. These endophytic fungi can be used as alternative bioinoculants to increase crop yield in saline soil.

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Profiles of Bacillus spp. Isolated from the Rhizosphere of Suaeda glauca and Their Potential to Promote Plant Growth and Suppress Fungal Phytopathogens

Cited by 12 publications

References 39 publications

Divergence in the soil and rhizosphere microbial communities of monoculture and silvopastoral traditional C. dodecandra agroforestry systems in Yucatan, Mexico

Divergence in the soil and rhizosphere microbial communities of monoculture and silvopastoral traditional C. dodecandra agroforestry systems in Yucatan, Mexico

Characterization of the follicular fluid microbiota based on culturomics and sequencing analysis

Identification of endophytic fungi with ACC deaminase-producing isolated from halophyte Kosteletzkya Virginica

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