The ecological role of bacterial seed endophytes associated with wild cabbage in the United Kingdom

Tyc, Olaf; Putra, Rocky; Gols, Rieta; Harvey, Jeffrey A.; Garbeva, Paolina

doi:10.1002/mbo3.954

Cited by 26 publications

(14 citation statements)

References 72 publications

(111 reference statements)

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“…It is a known phenomenon that seed-borne endophytes are vertically transmitted from maternal plants to their offspring [ 1 , 7 , 21 , 30 ]. This information suggests that the role of seed-borne endophytes is crucial, especially at the early stage of host plant development.…”

Section: Discussionmentioning

confidence: 99%

New Insight into the Composition of Wheat Seed Microbiota

Kuźniar

Włodarczyk

Grządziel

et al. 2020

IJMS

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Endophytes are associated with host plants throughout their life history from seed germination to fruit development. One of the most important plant organs colonized by endophytic microbiota is the seed. The aim of this study was to determine the structure of the seed core microbiome inhabiting the endosperms and embryos of eight wheat cultivars with the use of a culture-independent technique. The seeds of Triticum aestivum L. cv. Hondia, Wilejka, STH, Opcja, Tybalt, Euforia and Triticum spelta L. cv. Rokosz and Schwabencorn (producer: Plant Breeding Strzelce Sp. z o.o. Group IHAR) were studied. Rokosz and Hondia were cultured in vitro and in vivo to identify obligatory bacterial endophytes. A restrictive analysis of reads originating from the in vitro plants has demonstrated that the bacterial genera Paenibacillus and Propionibacterium inhabiting Rokosz and Hondia plants have a status of obligatory microorganisms. Greater biodiversity of seed-borne endophytes was found in the seed endosperms than in the embryos. The multiple comparison analysis of the OTU abundance indicated that the seed part significantly influenced the relative abundance. The seed-born microbiome is not statistically significantly dependent on the wheat cultivars; however, it cannot be claimed that every wheat seed is the same.

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Section: Discussionmentioning

confidence: 99%

New Insight into the Composition of Wheat Seed Microbiota

Kuźniar

Włodarczyk

Grządziel

et al. 2020

IJMS

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“…VOCs released by P. agglomerans E44 belong to the family of alkenes (1-undecene, cyclohexane), sulfides (DMDS and dimethyl trisulfide), and terpenes such as alpha-pinene [27]. In our case, P. agglomerans MVC 21 released VOCs belonging to the family of alcohols, ketones and sulfide.…”

Section: Discussionmentioning

confidence: 58%

“…However, the genome sequencing of plant beneficial P. agglomerans strains highlighted the presence of genes being putatively involved in the biosynthesis of VOCs that may stimulate plant growth [54,59]. Moreover, [27] found that the endophyte P. agglomerans E44 was able to stimulate seed germination and increase primary root length as well as fresh biomass of wild cabbage seedlings.…”

Section: Discussionmentioning

confidence: 99%

“…In fact, bacterial VOCs may modulate several physiological processes such as photosynthesis, plant hormone balance [21], uptake of nutrients from soil [22,23], systemic plant resistance mechanisms [24], and tolerance to soil salinization and drought stress [25,26]. At the same time, bacterial VOCs may act as interspecies communication signals playing a relevant role in the cooperation and competition among soilborne bacteria that are not in contact to each other [27]. Indeed, bacterial VOCs may can act as signal molecules between bacteria [28,29] and inhibit or promote the growth of other bacteria [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

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Ecological Role of Volatile Organic Compounds Emitted by Pantoea agglomerans as Interspecies and Interkingdom Signals

Vasseur-Coronado

Vlassi

Boulois³

et al. 2021

Microorganisms

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Volatile organic compounds (VOCs) play an essential role in microbe–microbe and plant–microbe interactions. We investigated the interaction between two plant growth-promoting rhizobacteria, and their interaction with tomato plants. VOCs produced by Pantoea agglomerans MVC 21 modulates the release of siderophores, the solubilisation of phosphate and potassium by Pseudomonas (Ps.) putida MVC 17. Moreover, VOCs produced by P. agglomerans MVC 21 increased lateral root density (LRD), root and shoot dry weight of tomato seedlings. Among the VOCs released by P. agglomerans MVC 21, only dimethyl disulfide (DMDS) showed effects similar to P. agglomerans MVC 21 VOCs. Because of the effects on plants and bacterial cells, we investigated how P. agglomerans MVC 21 VOCs might influence bacteria–plant interaction. Noteworthy, VOCs produced by P. agglomerans MVC 21 boosted the ability of Ps. putida MVC 17 to increase LRD and root dry weight of tomato seedlings. These results could be explained by the positive effect of DMDS and P. agglomerans MVC 21 VOCs on acid 3-indoleacetic production in Ps. putida MVC 17. Overall, our results clearly indicated that P. agglomerans MVC 21 is able to establish a beneficial interaction with Ps. putida MVC 17 and tomato plants through the emission of DMDS.

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“…A large diversity of endophytic bacteria belonging to different genera, including Achromobacter , Acinetobacter , Arthrobacter , Bacillus , Chitinophaga , Enterobacter , Erwinia , Flavobacterium , Klebsiella , Leifsonia , Microbispora , Micrococcus , Micromonospora , Mycobacterium , Paenibacillus , Pantoea , Pseudomonas , Roseomonas , Staphylococcus , Streptomyces , and Xanthomonas have been identified [ 51 ]. It has been evidenced that the microbial diversity decreases along the root–shoot axis, depending on the plant variety and the stage of plant growth [ 52 ]. Nowadays, many endophytic microorganisms are regarded as appropriate agents for enhancing Fe and Zn uptake and translocation.…”

Section: Introductionmentioning

confidence: 99%

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

Makar

Kuźniar

Patsula

et al. 2021

Biology

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Wheat grains are usually low in essential micronutrients. In resolving the problem of grain micronutritional quality, microbe-based technologies, including bacterial endophytes, seem to be promising. Thus, we aimed to (1) isolate and identify grain endophytic bacteria from selected spring wheat varieties (bread Oksamyt myronivs’kyi, Struna myronivs’ka, Dubravka, and emmer Holikovs’ka), which were all grown in field conditions with low bioavailability of microelements, and (2) evaluate the relationship between endophytes’ abilities to synthesize auxins and the concentration of Fe, Zn, and Cu in grains. The calculated biological accumulation factor (BAF) allowed for comparing the varietal ability to uptake and transport micronutrients to the grains. For the first time, bacterial endophytes were isolated from grains of emmer wheat T. turgidum subsp. dicoccum. Generally, the 12 different isolates identified in the four varieties belonged to the genera Staphylococcus, Pantoea, Sphingobium, Bacillus, Kosakonia, and Micrococcus (NCBI accession numbers: MT302194—MT302204, MT312840). All the studied strains were able to synthesize the indole-related compounds (IRCs; max: 16.57 µg∙mL−1) detected using the Salkowski reagent. The IRCs produced by the bacterial genera Pantoea spp. and Bacillus spp. isolated from high-yielding Oksamyt myronivs’kyi and Holikovs’ka grains may be considered as one of the determinants of the yield of wheat and its nutritional characteristics.

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The ecological role of bacterial seed endophytes associated with wild cabbage in the United Kingdom

Cited by 26 publications

References 72 publications

New Insight into the Composition of Wheat Seed Microbiota

New Insight into the Composition of Wheat Seed Microbiota

Ecological Role of Volatile Organic Compounds Emitted by Pantoea agglomerans as Interspecies and Interkingdom Signals

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

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