Paenibacillus polysaccharolyticus sp. nov., a xylanolytic and cellulolytic bacteria isolated from leaves of Bamboo Phyllostachys aureosulcata

Madhaiyan, Munusamy; Prabakaran, S.; Saravanan, Venkatakrishnan Sivaraj; Duraipandiyan, Veeramuthu; Al-Dhabi, Naïf Abdullah; Kwon, Soon-Wo; Whitman, William B.

doi:10.1099/ijsem.0.001901

Cited by 18 publications

(7 citation statements)

References 27 publications

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“…Despite not having found a core microbiota in the feathers, the most prevalent bacteria in waxbill feathers may be plant symbionts (e.g. Methylobacterium–Methylorubrum and Pantoea ; Dutkiewicz et al 2016, Madhaiyan et al 2017, Green and Ardley 2018) and are similar to variants found in another study in stones and soil (e.g. Sphingomonas ; Schröer et al 2020).…”

Section: Discussionsupporting

confidence: 57%

Cloaca‐ and feather‐associated bacteria communities in common waxbills Estrilda astrild

Silva

Trigo

Cardoso

et al. 2022

Journal of Avian Biology

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Host‐associated microbial communities are essential for host homeostasis and health. Most research on microbiotas is restricted to model host species and, since microbe–host dynamics can be species‐specific, we still lack a good taxonomic, ecological and evolutionary understanding of microbiotas in wild hosts, including birds. Given the diversity of avian host species, their habitat specializations, ecological requirements and life‐history traits, we need to characterize the dynamics of microbiotas from taxonomically diverse bird species. Here we describe cloaca and feather microbiotas of a population of common waxbills Estrilda astrild living in a large open‐air mesocosm, and compare it to microbiotas sampled one year later for a subset of this population, and to the microbiotas of free‐ranging waxbills from the same region. We found clear differences between microbiota from the cloaca, which contained some taxa that may be found in seeds, and from feathers, which contained some taxa that have been previously found in plants and soil. We found limited evidence for sexual differences in both cloaca and feather microbiotas, likely due to the gregariousness, similar behaviour and habitat use of both male and female waxbills. Microbial diversities of waxbills from the mesocosm were representative of those found in free‐ranging individuals. Also, structural differences between microbiota from mesocosm and free‐ranging waxbills seemed to be small and comparable to differences found in microbiota from the mesocosm in consecutive years. These results indicate that this mesocosm population could be used as a model in future studies investigating microbiota–host dynamics.

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Section: Discussionsupporting

confidence: 57%

Cloaca‐ and feather‐associated bacteria communities in common waxbills Estrilda astrild

Silva

Trigo

Cardoso

et al. 2022

Journal of Avian Biology

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“…Pairwise average nucleotide identity comparison of this draft genome against all 217 public Paenibacillus genomes available through IMG revealed no other genome above the recommended species cutoff (ANI ≥ 96.5 and AF ≥ 0.6) [ 46 ]. The most closely related genome, Paenibacillus phyllostachyicola BL9 ( Paenibacillus polysaccharolyticus BL9T) [ 31 ], had an ANI of 93.2% with an AF of 0.84. The ANI of the next most related genome, Paenibacillus sp.…”

Section: Resultsmentioning

confidence: 99%

Paenibacillus amylolyticus 27C64 has a diverse set of carbohydrate-active enzymes and complete pectin deconstruction system

Keggi

Doran‐Peterson

2019

Journal of Industrial Microbiology and Biotechnology

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A draft genome of Paenibacillus amylolyticus 27C64 was assembled and a total of 314 putative CAZymes in 108 different families were identified. Comparison to well-studied polysaccharide-degrading organisms revealed that P. amylolyticus 27C64 has as many or more putative CAZymes than most of these organisms. Four different pectic substrates and xylan supported growth but cellulose was not utilized. Measurement of enzyme activities in culture supernatants revealed low levels of cellulase activity, high levels of xylanase activity, and pectinase activities that adapted to the specific polysaccharides provided. Relative expression levels of each putative pectinase in cells grown with and without three different pectic substrates were evaluated with RT-qPCR and distinct sets of genes upregulated in response to homogalacturonan, methylated homogalacturonan, and rhamnogalacturonan I were identified. It is also noted that this organism’s pectinolytic system differs from other well-studied systems and contains enzymes which are of value for further study.Electronic supplementary materialThe online version of this article (10.1007/s10295-018-2098-1) contains supplementary material, which is available to authorized users.

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“…Several stains of Paenibacillus , isolated from diverse sources such as soil, bamboo leaves, decomposing rice straw and decaying woods, harbour enzymes that are involved in cellulose and xylan degradation (Nelson et al ., 2009 ; Khianngam et al ., 2011 ; Ghio et al ., 2012 ; Madhaiyan et al ., 2017 ). Our genome analysis of S150 revealed no gene involved in lignin degradation but several ones linked to cellulose, and xylose and xylan (xyloside) degradation.…”

Section: Discussionmentioning

confidence: 99%

Bacteria associated with wood tissues of Esca‐diseased grapevines: functional diversity and synergy with Fomitiporia mediterranea to degrade wood components

Haidar

Yacoub

Vallance

et al. 2021

Environmental Microbiology

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Fungi are considered to cause grapevine trunk diseases such as esca that result in wood degradation. For instance, the basidiomycete Fomitiporia mediterranea (Fmed) is overabundant in white rot, a key type of wood-necrosis associated with esca. However, many bacteria colonize the grapevine wood too, including the white rot. In this study, we hypothesized that bacteria colonizing grapevine wood interact, possibly synergistically, with Fmed and enhance the fungal ability to degrade wood. We isolated 237 bacterial strains from esca-affected grapevine wood. Most of them belonged to the families Xanthomonadaceae and Pseudomonadaceae. Some bacterial strains that degrade grapevine-wood components such as cellulose and hemicellulose did not inhibit Fmed growth in vitro. We proved that the fungal ability to degrade wood can be strongly influenced by bacteria inhabiting the wood. This was shown with a cellulolytic and xylanolytic strain of the Paenibacillus genus, which displays synergistic interaction with Fmed by enhancing the degradation of wood structures. Genome analysis of this Paenibacillus strain revealed several gene clusters such as those involved in the expression of carbohydrate-active enzymes, xylose utilization and vitamin metabolism. In addition, certain other genetic characteristics of the strain allow it to thrive as an endophyte in grapevine and influence the wood degradation by Fmed. This suggests that there might exist a synergistic interaction between the fungus Fmed and the bacterial strain mentioned above, enhancing grapevine wood degradation. Further step would be to point out its occurrence in mature grapevines to promote esca disease development.

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Paenibacillus polysaccharolyticus sp. nov., a xylanolytic and cellulolytic bacteria isolated from leaves of Bamboo Phyllostachys aureosulcata

Cited by 18 publications

References 27 publications

Cloaca‐ and feather‐associated bacteria communities in common waxbills Estrilda astrild

Cloaca‐ and feather‐associated bacteria communities in common waxbills Estrilda astrild

Paenibacillus amylolyticus 27C64 has a diverse set of carbohydrate-active enzymes and complete pectin deconstruction system

Bacteria associated with wood tissues of Esca‐diseased grapevines: functional diversity and synergy with Fomitiporia mediterranea to degrade wood components

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