Seed Bacterial Endophytes: Common Genera, Seed-to-Seed Variability and Their Possible Role in Plants

Rosenblueth, Mónica; López-López, Aline; Martinez, Jesse; Rogel, Marco A.; Toledo, Ivonne; Martı́nez-Romero, Esperanza

doi:10.17660/actahortic.2012.938.4

Cited by 28 publications

(20 citation statements)

References 61 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This observation is consistent with similar trends reported elsewhere (Ganley and Newcombe 2006;Truyens et al 2015). It is reported that the majority of seedassociated bacterial endophytes belong to Proteobacteria such as Bacillus, Staphylococcus, Pseudomonas and Pantoea (Rosenblueth et al 2012;Truyens et al 2015). The seed-associated D r a f t endophytes reported in this study belonged to the above taxa.…”

Section: R a F Tsupporting

confidence: 93%

See 1 more Smart Citation

Endophytes of industrial hemp (Cannabis sativaL.) cultivars: identification of culturable bacteria and fungi in leaves, petioles, and seeds

et al. 2018

View full text Add to dashboard Cite

Plant endophytes are a group of microorganisms that reside asymptomatically within the healthy living tissue. The diversity and molecular and biochemical characterization of industrial hemp-associated endophytes have not been previously studied. This study explored the abundance and diversity of culturable endophytes residing in petioles, leaves, and seeds of three industrial hemp cultivars, and examined their biochemical attributes and antifungal potential. A total of 134 bacterial and 53 fungal strains were isolated from cultivars Anka, CRS-1, and Yvonne. The number of bacterial isolates was similarly distributed among the cultivars, with the majority recovered from petiole tissue. Most fungal strains originated from leaf tissue of cultivar Anka. Molecular and phylogenetic analyses grouped the endophytes into 18 bacterial and 13 fungal taxa, respectively. The most abundant bacterial genera were Pseudomonas, Pantoea, and Bacillus, and the fungal genera were Aureobasidium, Alternaria, and Cochliobolus. The presence of siderophores, cellulase production, and phosphorus solubilization were the main biochemical traits. In proof-of-concept experiments, re-inoculation of tomato roots with some endophytes confirmed their migration to aerial tissues of the plant. Taken together, this study demonstrates that industrial hemp harbours a diversity of microbial endophytes, some of which could be used in growth promotion and (or) in biological control designed experiments.

show abstract

Section: R a F Tsupporting

confidence: 93%

“…Cultivar specificity to bacteria and fungal endophytes has been reported in several crops including Cannabis (Bailey et al 2005;Rasche et al 2006;Rosenblueth et al 2012;Wearn et al 2012;Winston et al 2014). Hence, studies on biodiversity and cultivar specificity of cultured endophytic microorganisms associated with hemp merit further research.…”

Section: R a F Tmentioning

confidence: 99%

Endophytes of industrial hemp (Cannabis sativaL.) cultivars: identification of culturable bacteria and fungi in leaves, petioles, and seeds

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The cultivation of seed endophytes is also challenging because of the specific habitat they are derived from. Seed endophyte population sizes range from 55 colony‐forming units (cfu) per gram in bean (Rosenblueth et al ., ) to as high as 10 7 cfu g −1 in rapeseed (Granér et al ., ). In general, common bacterial genera reported in seeds of very different plant species are Bacillus and Pseudomonas .…”

Section: Frequently Reported Bacterial Seed Endophytesmentioning

confidence: 99%

Bacterial seed endophytes: genera, vertical transmission and interaction with plants

Truyens

Weyens

Cuypers

et al. 2014

Environ Microbiol Rep

550

432

View full text Add to dashboard Cite

SummaryAlthough the importance of plant-associated microorganisms for plant growth and health was getting more recognition recently, the role of seed-associated microorganisms, and especially seed endophytic bacteria, still is underestimated. Nevertheless, these associations could be beneficial for germination and seedling establishment as seed endophytic bacteria are already present in these very early plant growth stages. Moreover, bacteria with beneficial characteristics can be selected by the plants and could be transferred via the seed to benefit the next generation. In this paper, the current literature concerning bacterial endophytes that have been isolated from seeds of different plant species is reviewed. Their colonization routes, localization inside seeds and mode of transmission as well as their role and fate during germination and seedling development are discussed. At the end, some examples of bacterial seed endophytes with applications as a plant growthpromoting or biocontrol agent are given.

show abstract

“…In contrast, neutral processes for seed assembly may include dispersal-driven colonization of microbiota to flowers that then are transmitted to the seed, for example via air or rain events. Cultivation-dependent approach performed on seed endophytes in corn and common bean showed substantial variability in the populations recoverable from the same cob and pod, respectively [71], therefore suggesting that these plants may not provide a strong selective environment for seed microbiota.…”

Section: Current Opinion In Microbiologymentioning

confidence: 99%

Ecological patterns of seed microbiome diversity, transmission, and assembly

Shade

Martin

Barret

2017

Current Opinion in Microbiology

331

280

View full text Add to dashboard Cite

Seeds are involved in the transmission of microorganisms from one plant generation to another and consequently act as the initial inoculum for the plant microbiota. The purpose of this mini-review is to provide an overview of current knowledge on the diversity, structure and role of the seed microbiota. The relative importance of the mode of transmission (vertical vs horizontal) of the microbial entities composing the seed microbiota as well as the potential connections existing between seed and other plant habitats such as the anthosphere and the spermosphere is discussed. Finally the governing processes (niche vs neutral) involved in the assembly and the dynamics of the seed microbiota are examined.

show abstract

Seed Bacterial Endophytes: Common Genera, Seed-to-Seed Variability and Their Possible Role in Plants

Cited by 28 publications

References 61 publications

Endophytes of industrial hemp (Cannabis sativaL.) cultivars: identification of culturable bacteria and fungi in leaves, petioles, and seeds

Endophytes of industrial hemp (Cannabis sativaL.) cultivars: identification of culturable bacteria and fungi in leaves, petioles, and seeds

Bacterial seed endophytes: genera, vertical transmission and interaction with plants

Ecological patterns of seed microbiome diversity, transmission, and assembly

Contact Info

Product

Resources

About