Natural diversity of nodular microsymbionts of Myrica rubra

He, Xinhua; Chen, L.G.; Xiu, Hu; Asghar, Syed

doi:10.1023/b:plso.0000037045.42440.1d

Cited by 8 publications

(2 citation statements)

References 21 publications

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“…yangliu, var. zaoda;He et al 2004), as well as a cultured ACN14a strain, whose host is A. viridis (Normand et al 2007). Other Frankia sequences from different actinorhizal species, Hippöphae salicifolia (Mishra et al 2015), three Coriaria species (C. myrtifolia, C. japonica, C. arborea; Nouioui et al 2014), Elaeagnus angustifolia, Datisca glomerate, and Casuarina equisetifolia (Normand et al 2007), were also included as outgroups.…”

Section: Molecular Analysesmentioning

confidence: 99%

Spatial heterogeneity in genetic diversity and composition of bacterial symbionts in a single host species population

Kagiya

Utsumi

2020

Plant Soil

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Revealing genetic diversity in a root nodulation symbiosis under field conditions is critical to understand the formation of ecological communities of organisms associated with hosts and the nitrogen cycle in natural ecosystems. However, our knowledge of genetic diversity of bacterial mutualists on a local scale is still poor because of the assumption that the genetic diversity of mutualistic bacteria is constrained by their hosts. MethodsWe thoroughly investigated genetic diversity of Frankia in a local forest stand. We collected root nodules from 213 Alnus hirsuta seedlings covering the spatial range of the continuous population, which means that Alnus individuals occurred in a relatively homogeneous distribution in a continuous forest. Then, a phylogenetic analysis was performed for the nifD-K IGS region, including global Frankia sequences from Alnus hosts. ResultsThe genetic diversity of Frankia detected even on a local scale measured as high as that shown by previous studies conducted on a regional scale. Moreover, a genetic structure analysis revealed a spatially mosaic-like distribution of genetic variation in Frankia despite the small spatial scale. Conclusions 3The genetic diversity and composition of bacterial mutualists are heterogeneous on a local scale. Our findings demonstrate that genetically different bacterial symbionts simultaneously interact with a single host population and interaction partnerships spatially vary. The standing variation could produce dynamic ecological and evolutionary outcomes in a heterogeneous forest ecosystem.

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Section: Molecular Analysesmentioning

confidence: 99%

Spatial heterogeneity in genetic diversity and composition of bacterial symbionts in a single host species population

Kagiya

Utsumi

2020

Plant Soil

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“…1K ), with annual seedlings exhibiting a height of ∼30 cm, and CB roots fix atmospheric nitrogen to facilitate plant growth through a symbiotic relationship with Frankia ( Nouioui et al, 2017 ). Frankia strains isolated from CB root nodules exhibit rich genetic diversity ( He et al, 2004a ; He et al, 2004b ). CB plants are highly adaptable and can be readily grown in harsh or barren environments including weakly acidic soil with a minimum tolerated temperature of −9 °C.…”

Section: Introductionmentioning

confidence: 99%

An overview of the nutritional value, health properties, and future challenges of Chinese bayberry

Zhang

Sun

et al. 2022

PeerJ

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Chinese bayberry (CB) is among the most popular and valuable fruits in China owing to its attractive color and unique sweet/sour taste. Recent studies have highlighted the nutritional value and health-related benefits of CB. CB has special biological characteristics of evergreen, special aroma, dioecious, nodulation, nitrogen fixation. Moreover, the fruits, leaves, and bark of CB plants harbor a number of bioactive compounds including proanthocyanidins, flavonoids, vitamin C, phenolic acids, and anthocyanins that have been linked to the anti-cancer, anti-oxidant, anti-inflammatory, anti-obesity, anti-diabetic, and neuroprotective properties and to the treatment of cardiovascular and cerebrovascular diseases. The CB fruits have been used to produce a range of products: beverages, foods, and washing supplies. Future CB-related product development is thus expected to further leverage the health-promoting potential of this valuable ecological resource. The present review provides an overview of the botanical characteristics, processing, nutritional value, health-related properties, and applications of CB in order to provide a foundation for further research and development.

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Diversity of Frankia Strains, Actinobacterial Symbionts of Actinorhizal Plants

2013

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In the last edition of the Bergey's Manual of Systematic Bacteriology, Frankia was the sole genus found in the family Frankiaceae. This single-genus family, together with Geodermatophilaceae, Nakamurellaceae, Sporichthyaceae, Acidothermaceae, and Cryptosporangiaceae, makes up the order Frankiales, an artificial taxon within the phylum Actinobacteria supported only marginally by 16S rDNA similarities (Normand and Benson 2012). Genus Frankia represents a monophyletic assemblage of soil actinobacteria distinguishable by multilocular sporangia-forming branched hyphae and their unique ability to grow in nitrogen-limited substrates due to their ability to fix nitrogen within specialized thick-walled structures, termed vesicles, produced in vitro and in planta. Diversity of Frankia has been noted in several separate reports on the presence of comparable root nodule structures induced in numerous trees and shrubs growing as aggressive pioneers in nitrogenlimited ecosystems such as glacial moraines, gravel slopes, volcanic ashes, mine spoils, or burned forests with a contributed input of 15 % of total biologically fixed nitrogen on earth (Quispel 1990). Despite the absence of apparent close kinship among these plants, they have been termed actinorhizal plants due to the nature of the root nodule-causing agents detected in plant tissues. Based on in planta morphology and the limited cross-infectivity of crushed-nodule inocula, Becking

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Natural diversity of nodular microsymbionts of Myrica rubra

Cited by 8 publications

References 21 publications

Spatial heterogeneity in genetic diversity and composition of bacterial symbionts in a single host species population

Spatial heterogeneity in genetic diversity and composition of bacterial symbionts in a single host species population

An overview of the nutritional value, health properties, and future challenges of Chinese bayberry

Diversity of Frankia Strains, Actinobacterial Symbionts of Actinorhizal Plants

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