Culturable fungal endophytes in shoots of Dendrobium aqueum Lindley – An imperiled orchid

Parthibhan, Selvaraju; Rao, M. S.; Thiruppathi, S.

doi:10.1016/j.egg.2017.06.004

Cited by 19 publications

(10 citation statements)

References 35 publications

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“…This is also confirmed by other researchers [64]. The genus Fusarium was identified also from both the stem and leaf segments of other Dendrobium species, e.g., Dendrobium nobile, D. loddigesii, D. devonianum, D. thyrsiflorum and D. moschatum [65]. Xing et al [32] report that also endophytic fungi cultured from different Dendrobium species may be beneficial to plants due to their antibacterial and/or antifungal properties.…”

Section: Discussionsupporting

confidence: 72%

Species Diversity of Micromycetes Associated with Epipactis helleborine and Epipactis purpurata (Orchidaceae, Neottieae) in Southwestern Poland

et al. 2020

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The Orchidaceae family is a diverse family of flowering plants that occur naturally in most parts of the world. However, fungal communities inhabiting different parts of orchids are not sufficiently described. The aim of the study was to conduct a mycological evaluation of Epipactis helleborine and E. purpurata (Orchidaceae), which grow naturally in Lower Silesia (SW Poland), by identifying the species composition of the culturable micromycetes fungi on the surfaces of the plants and from the inner layers of the tissues. Fungi were identified based on a phenotypic and genotypic analysis. To our knowledge, this is the first such analysis. This study showed that more species of micromycetes were cultured from E. helleborine compared with E. purpurata. The flowering plants of E. helleborine were inhabited by the largest number of culturable fungal species (13 species), and the fewest species were isolated from the flowering plants of E. purpurata (eight species). Some of these fungal species may be pathogens of the plants. The surface tissues of the orchids were mainly inhabited by Mucor moelleri and/or Penicillium biourgeianum. The inner layers of these plants were the most colonized by Alternaria tenuissima and/or Arthrinium arundinis and/or Fusarium sporotrichioides. The relative dominance of these fungal species depended mainly on the development phase of the plants.

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Section: Discussionsupporting

confidence: 72%

Species Diversity of Micromycetes Associated with Epipactis helleborine and Epipactis purpurata (Orchidaceae, Neottieae) in Southwestern Poland

et al. 2020

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“…Recently, three OFEs are recovered and identified from threatened Dendrobium aqueum. Stem parts are obtained from original plants from India, Kolli hills [32]. Fusarium sp.…”

Section: Orchidaceae Shootsmentioning

confidence: 99%

A comprehensive review on fungal endophytes and its dynamics on Orchidaceae plants: current research, challenges, and future possibilities

2019

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In the development of medicinally important Orchidaceae, the extent of fungal endophytes specificity is not presently very clear. Limited study has been available on natural products formed and its role on plant growth, defence mechanism by endophytes, and to characterize the chief treasure of bioactive molecules. Therefore, this review article presents an evaluation of the endophytes associated with Orchidaceae for physiology, metabolism, and genomics which have prominently contributed to the resurgence of novel metabolite research increasing our considerate of multifaceted mechanisms regulatory appearance of biosynthetic gene groups encoding diverse metabolites. Additionally, we presented the comprehensive recent development of biostrategies for the cultivation of endophytes from Orchidaceae and integration of bioengineered 'Genomics with metabolism' approaches with emphases collective omics as powerful approach to discover novel metabolite compounds. The Orchidaceae-fungal endophytes' biodynamics for sustainable development of bioproducts and its applications are supported in large-scale biosynthesis of industrially and pharmaceutical important biomolecules. ARTICLE HISTORY

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“…Endophytic microbiota in Dendrobium vary spatially within the plant. Previous studies have shown that bacteria Proteobacteria Firmicutes, Actinobacteria, Bacteroidetes, and Acidobacteria, and fungi Ascomycota, Basidiomycota, and Ascomycota were the dominant phyla in Dendrobium [23][24][25], but few studies determined how the microbiome changes with plant growth. In this study, we report that the endophytic microbiome in D. huoshanesne shifted with plant growth, and endophytic prokaryotic diversity differed significantly among 1-, 2-, and 3-yearold roots, and was lower in the 1-year-old stems and roots than in the 2-and 3-year-old ones.…”

Section: Samplesmentioning

confidence: 99%

Endophytic Microbiota Comparison of Dendrobium huoshanense Root and Stem in Different Growth Years

et al. 2019

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The endophytic microbiome in medicinal plants is rich and diverse, but few studies have followed the endophytic microbiome of medicinal plants in different tissues with their growth. In this study, we examined the endophytic bacterial and fungal community structures associated with both the stem and root compartments of Dendrobium huoshanense at different growth years via high-throughput sequencing of 16S rRNA genes and nrDNA fragments of internal transcribed spacer regions. Results indicated that more diverse prokaryotic and fungal operational taxonomic units were detected in roots than in stems, and the alpha diversity of endophytic prokaryotic significantly differed among the 1-, 2-, and 3-year-old roots. The dominant bacterial phyla Proteobacteria Firmicutes, Actinobacteria, Bacteroidetes, and Acidobacteria, and fungal phyla Ascomycota, Basidiomycota, and Ascomycota were detected in the stems and roots with 3 growth years. Moreover, linear discriminant effect size analysis revealed 138 differentially abundant taxonomic clades in the bacterial level, and 197 in the fungal level in six groups. Our results provide evidence for endophytic microbiota communities depending on the tissues and growth years of D. huoshanense. The results from this study should be useful to better understand medicinal plant-microbe interactions.

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Culturable fungal endophytes in shoots of Dendrobium aqueum Lindley – An imperiled orchid

Cited by 19 publications

References 35 publications

Species Diversity of Micromycetes Associated with Epipactis helleborine and Epipactis purpurata (Orchidaceae, Neottieae) in Southwestern Poland

Species Diversity of Micromycetes Associated with Epipactis helleborine and Epipactis purpurata (Orchidaceae, Neottieae) in Southwestern Poland

A comprehensive review on fungal endophytes and its dynamics on Orchidaceae plants: current research, challenges, and future possibilities

Endophytic Microbiota Comparison of Dendrobium huoshanense Root and Stem in Different Growth Years

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