Beneficial traits of bacterial endophytes belonging to the core communities of the tomato root microbiome

Tian, Baoyu; Zhang, Cuijuan; Yuan, Ye; Jiang, Wen; Wu, Yimin; Wang, Hongzhu; Li, Huimin; Cai, Shixian; Cai, Weiquan; Cheng, Zhiqiang; Lei, Shaonan; Ma, Rongqin; Lu, Chao; Cao, Yi; Xu, Xiaohong; Zhang, Ke‐Qin

doi:10.1016/j.agee.2017.06.041

Cited by 101 publications

(70 citation statements)

References 34 publications

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“…Studies based on NGS have shown the presence of Rhizobiales as a component of the tomato microbiome, even as the main phylogenetic group in the endosphere of roots [72][73][74][75]. Furthermore, Pseudomonadales, Enterobacteriales, Rhizobiales, Burkholderiales and Xanthomonadales have been described as predominant Proteobacteria orders that colonize tomato roots [76], while several diazotrophic Burkholderia species were found in tomato plants grown in fields in Mexico [77].…”

Section: In Vitro Assays In Vivo Assays: Tomatomentioning

confidence: 99%

Diversity and plant growth-promoting functions of diazotrophic/N-scavenging bacteria isolated from the soils and rhizospheres of two species of Solanum

et al. 2020

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Studies of the interactions between plants and their microbiome have been conducted worldwide in the search for growth-promoting representative strains for use as biological inputs for agriculture, aiming to achieve more sustainable agriculture practices. With a focus on the isolation of plant growth-promoting (PGP) bacteria with ability to alleviate N stress, representative strains that were found at population densities greater than 10 4 cells g -1 and that could grow in N-free semisolid media were isolated from soils under different management conditions and from the roots of tomato (Solanum lycopersicum) and lulo (Solanum quitoense) plants that were grown in those soils. A total of 101 bacterial strains were obtained, after which they were phylogenetically categorized and characterized for their basic PGP mechanisms. All strains belonged to the Proteobacteria phylum in the classes Alphaproteobacteria (61% of isolates), Betaproteobacteria (19% of isolates) and Gammaproteobacteria (20% of isolates), with distribution encompassing nine genera, with the predominant genus being Rhizobium (58.4% of isolates). Strains isolated from conventional horticulture (CH) soil composed three bacterial genera, suggesting a lower diversity for the diazotrophs/N scavenger bacterial community than that observed for soils under organic management (ORG) or secondary forest coverture (SF). Conversely, diazotrophs/N scavenger strains from tomato plants grown in CH soil comprised a higher number of bacterial genera than did strains isolated from tomato plants grown in ORG or SF soils. Furthermore, strains isolated from tomato were phylogenetically more diverse than those from lulo. BOX-PCR fingerprinting of all strains revealed a high genetic diversity for several clonal representatives (four Rhizobium species and one Pseudomonas species). Considering the potential PGP mechanisms, 49 strains (48.5% of the total) produced IAA (2.96-193.97 μg IAA mg protein -1 ), 72 strains (71.3%) solubilized FePO 4 (0.40-56.00 mg l -1 ), 44 strains (43.5%) solubilized AlPO 4 (0.62-17.05 mg l -1 ), and 44 strains produced siderophores (1.06-3.23). Further, 91 isolates (90.1% of total) showed at least one PGP trait, and 68 isolates (67.3%) showed multiple PGP traits. Greenhouse trials using the bacterial collection to inoculate tomato or lulo plants revealed increases in plant biomass (roots, shoots or both plant PLOS ONE | https://doi.org/10.

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Section: In Vitro Assays In Vivo Assays: Tomatomentioning

confidence: 99%

Diversity and plant growth-promoting functions of diazotrophic/N-scavenging bacteria isolated from the soils and rhizospheres of two species of Solanum

et al. 2020

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“…A study conducted by Meireles et al [23] also found that the prevalence of Pseudomonadales in a vegetable plant was 49%, which dominated almost half of the community population. Tian et al [24] also discovered that Pseudomonas spp. dominated tomato roots wile acting as a promoter of plant growth.…”

Section: Resultsmentioning

confidence: 98%

Prevalence of spoilage microorganism, Pseudomonas spp. on restaurants cutting boards collected in Seri Kembangan, Malaysia.

Na¹,

Osman²,

S³

et al. 2019

J Nutr Food Sci

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Some of the enzymes produced by Pseudomonas are heat Due to the tropical climate that promotes the growth of most microorganisms, the food service industry in Malaysia faces a lot of challenges in order to ensure quality foods are served to the customers. One of the bacteria that are associated with food spoilage is Pseudomonas spp., and the presence of these bacteria on cutting boards could cross-contaminate food items during food handling. This study performed pyrosequencing analysis to investigate the existence of microbial communities on cutting boards collected from restaurants in Seri Kembangan, Malaysia. Most of the samples were dominated by Flavobacteriales, Enterobacteriales, Lactobacillales, and Pseudomonadales. This study discovered that, all samples of cutting boards were contaminated with Pseudomonas spp. With the mean bacterial count of 1.4 × 10 6 cfu/cm 2 , 5.1 × 10 5 cfu/cm 2 and 5.6 × 10 6 cfu/cm 2 on samples collected from clean, moderately clean and less clean food premises, respectively. The study shows that the contamination level of Pseudomonas spp. was not significantly different in different grades of food premises. Regardless of the status and grades of the food premises, they have the same likelihood to introduce spoilage bacteria like Pseudomonas spp. from cutting board to food if they neglect correct food handling measures. Therefore, all food handlers need to prioritize safe food handling to avoid food contamination and spoilage. Abstract

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“…It is interesting to highlight that, Streptomycetales and Pseudomonadales were found to be highly enriched and are therefore the predominant organisms within tomato roots. Furthermore Micromonosporales, Rhizobiales, Sphingomonadales, Burkholderiales, Xanthomonadales and Flavobacteriales also were among the most abundant bacterial groups [22].…”

Section: Introductionmentioning

confidence: 97%

“…Recently, community analysis of culturable and unculturable microorganisms interacting with plants was performed by means of new generation sequencing technologies. In such studies the phytobiome of tomato and sugarcane roots [22] were formed mainly by Actinobacteria, followed by Proteobacteria, Bacteroidetes and Firmicutes [23,8]. It is interesting to highlight that, Streptomycetales and Pseudomonadales were found to be highly enriched and are therefore the predominant organisms within tomato roots.…”

Section: Introductionmentioning

confidence: 99%

Microbial Endophytes That Live within Seeds of Two Tomato Hybrid Cultivated in Argentina

López¹,

Pastorino²,

Franco³

et al. 2018

Preprint

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Tomato (Solanum lycopersicum L.) is widely consumed around the world is mostly affected by stresses and diseases that reduce yield and production. Research on sustainable technologies like the use of beneficial microorganismsis crucial to development sustainable management strategies. Endophytic bacteria might increase production as well as plant health.. In this work we studied the endobiome of tomato seeds of different cultivars since the plant genotype might affect the microbial community structure in terms of plant growth promoters as well as organisms for biocontrol. The conditions prevailing within seeds along the maturation period might have affected bacterial survival. This is such that seed endophytes share features, which are different from those of bacteria from other plant tissues. The community associated with different cultivars reflects the different resources available in the seed and its potential to prevent the attack of pathogens and to promote plant growth.

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Beneficial traits of bacterial endophytes belonging to the core communities of the tomato root microbiome

Cited by 101 publications

References 34 publications

Diversity and plant growth-promoting functions of diazotrophic/N-scavenging bacteria isolated from the soils and rhizospheres of two species of Solanum

Diversity and plant growth-promoting functions of diazotrophic/N-scavenging bacteria isolated from the soils and rhizospheres of two species of Solanum

Prevalence of spoilage microorganism, Pseudomonas spp. on restaurants cutting boards collected in Seri Kembangan, Malaysia.

Microbial Endophytes That Live within Seeds of Two Tomato Hybrid Cultivated in Argentina

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