Rhizobium herbae sp. nov. and Rhizobium giardinii-related bacteria, minor microsymbionts of various wild legumes in China

Ren, Da Wei; Wang, En Tao; Chen, Wen Feng; Sui, Xin; Liu, Hong Can

doi:10.1099/ijs.0.024943-0

Cited by 36 publications

(5 citation statements)

References 48 publications

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“…A number of core bacteria were identified, such as Rhizobium-Allorhizobium-Pararhizobium-Neorhizobium that can fix nitrogen and colonize inside plant tissue. These microbes have been also found colonizing roots of non-legume crops such as wheat, barley, maize and rice and could be used as biofertilizer through bio-inoculating with crop seeds (Boddey et al, 1995;Webster et al, 1997;Yanni et al, 1997;Gutierrez-Zamora and Martinez-Romero, 2001;Lupwayi et al, 2004;Chi et al, 2005;Da et al, 2011;Ren et al, 2011;Mousavi et al, 2014Mousavi et al, , 2015. Species from the genus Pantoea (Monier and Lindow, 2005) have been found as part of the epi-and endophyte flora of various plant hosts.…”

Section: Discussionmentioning

confidence: 99%

Dynamic Changes in the Microbiome of Rice During Shoot and Root Growth Derived From Seeds

et al. 2020

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Microbes form close associations with host plants including rice as both surface (epiphytes) and internal (endophytes) inhabitants. Yet despite rice being one of the most important cereal crops agriculturally and economically, knowledge of its microbiome, particularly core inhabitants and any functional properties bestowed is limited. In this study, the microbiome in rice seedlings derived directly from seeds was identified, characterized and compared to the microbiome of the seed. Rice seeds were sourced from two different locations in Arkansas, USA of two different rice genotypes (Katy, M202) from two different harvest years (2013, 2014). Seeds were planted in sterile media and bacterial as well as fungal communities were identified through 16S and ITS sequencing, respectively, for four seedling compartments (root surface, root endosphere, shoot surface, shoot endosphere). Overall, 966 bacterial and 280 fungal ASVs were found in seedlings. Greater abundance and diversity were detected for the microbiome associated with roots compared to shoots and with more epiphytes than endophytes. The seedling compartments were the driving factor for microbial community composition rather than other factors such as rice genotype, location and harvest year. Comparison with datasets from seeds revealed that 91 (out of 296) bacterial and 11 (out of 341) fungal ASVs were shared with seedlings with the majority being retained within root tissues. Core bacterial and fungal microbiome shared across seedling samples were identified. Core bacteria genera identified in this study such as Rhizobium, Pantoea, Sphingomonas, and Paenibacillus have been reported as plant growth promoting bacteria while core fungi such as Pleosporales, Alternaria and Occultifur have potential as biocontrol agents.

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Section: Discussionmentioning

confidence: 99%

Dynamic Changes in the Microbiome of Rice During Shoot and Root Growth Derived From Seeds

et al. 2020

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“…Pararhizobium herbae and P. giardinii are the closest relatives of this group of strains. These two species, originally described as members of the Rhizobium genus, are symbionts of various legume plant species (Ren et al ., ). More detailed study is required to estimate the taxonomic status of these new phylogenetic lineages.…”

Section: Discussionmentioning

confidence: 97%

Identification and characterization of bacteria isolated from crown galls on stone fruits in Poland

2015

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Eighty stone fruit nurseries located in different regions of Poland were examined for the presence of crown gall affected plants. The disease was observed in 39 nurseries, and galls were sampled for bacterial isolation. Out of 1213 isolates, 409 were pre-identified as Agrobacterium/Rhizobium spp. with 23S rDNA-based multiplex PCR, and out of these, 315 were pathogenic when tested on sunflowers. Sequence analysis of three housekeeping genes (fusA, recA, rpoD) revealed that 366 strains belonged to Rhizobium rhizogenes, 23 to Agrobacterium tumefaciens species complex, and the rest of the strains were allocated to new phylogenetic lineages. Of these, the most numerous was the lineage allocated in the Pararhizobium genus. Positive results obtained from pathogenicity tests were generally in agreement with results obtained by PCR with primers complementary to T-DNA except for two strains, which were positive for PCR but negative for the pathogenicity test. All detected Ti plasmids were nopaline-type. Independent of their pathogenicity, 59% of tested strains were not sensitive to agrocin 84 in in vitro tests. Analysis of biochemical and physiological features distinguished 50 groups with different phenotypic profiles, but the tested traits were not consistent for strains classified to one taxon. This finding shows limited value of biochemical tests in identification procedures. The bacteria causing tumours were heterogeneous and strains classified to different taxa were found even in a single tumour.

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“…agricultural and forestry system as biofertilizer and bio-re-mediator agents (Sayeda et al, 2005). Their uses and benefits are well known in several regions of the world, especially in America (Torres-Júnior et al, 2014), Europe (Rincón et al, 2008), Asia (Ren et al, 2011), Australia (Sessitsch et al, 2002), North Africa (Maâtallaha et al, 2002 and South Africa (Hassen et al, 2014).…”

Section: Issn: 2319-7706 Volume 9 Number 7 (2020)mentioning

confidence: 99%

Molecular and Symbiotic Efficiency Characterization of Rhizobia Nodulating Bambara Groundnut (Vigna subterranea L.) from Agricultural Soils of Daloa Localities in Côte D’ivoire

Raissa¹,

Konaté²,

Taha³

et al. 2020

Int.J.Curr.Microbiol.App.Sci

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Rhizobium herbae sp. nov. and Rhizobium giardinii-related bacteria, minor microsymbionts of various wild legumes in China

Cited by 36 publications

References 48 publications

Dynamic Changes in the Microbiome of Rice During Shoot and Root Growth Derived From Seeds

Dynamic Changes in the Microbiome of Rice During Shoot and Root Growth Derived From Seeds

Identification and characterization of bacteria isolated from crown galls on stone fruits in Poland

Molecular and Symbiotic Efficiency Characterization of Rhizobia Nodulating Bambara Groundnut (Vigna subterranea L.) from Agricultural Soils of Daloa Localities in Côte D’ivoire

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