First Report of Fusarium Wilt of <i>Dendrobium officinale</i> Caused by <i>Fusarium oxysporum</i> in China

Zhang, Y. Q.; Lin, Bo Yen; Zou, Mingqian; Liang, Jinrong; Hu, Han

doi:10.1094/pdis-09-16-1270-pdn

Cited by 10 publications

(6 citation statements)

References 4 publications

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“…Fusarium species have been reported to be associated with different orchid species [33,38]. Interestingly, although Fusarium species have been reported as pathogens in many orchid species [39], especially F. oxysporum, which was reported to cause wilt disease in D. o cinale [40], other studies have suggested that Fusarium species can stimulate seed germination in the terrestrial orchid Cypripedium reginae [41] and enhance resistance to pathogens and promote plant growth in Dendrobium species [42,43]. In a recent study, F. oxysporum KB-3, obtained from the roots of Bletilla striata, was considered an OMF because it could promote seed germination of B. striata, establish colonization and produce coiled hyphal structures within the cortical cells in the roots of B. striata and Dendrobium candidum [44].…”

Section: Discussionmentioning

confidence: 99%

In Situ Seedling Baiting to Isolate Plant Growth-Promoting Fungi From Dendrobium Officinale, An Over-Collected Medicinal Orchid In China

Chen

Wang

et al. 2021

Preprint

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Background: Orchids are highly dependent on mycorrhizae for survival and growth. Traditionally, to obtain orchid mycorrhizal fungi (OMFs) for plant growth, fungi have been isolated from the roots of mature wild plants; however, the species of OMF may change as the plants undergo different developmental stages. In this study, we developed the idea of using in situ seedling baiting to capture seedling growth-promoting fungi from Dendrobium officinale, an overcollected medicinal orchid in China.Results: In vitro-produced seedlings of D. officinale were transplanted into their original habitats, and newly established roots of well-growing seedlings were sampled for fungal isolation. Roots were sampled at 6 different times over one year, and five Tulasnella species and one Fusarium species were obtained and identified morphologically and molecularly. The ability to promote seedling growth was tested in three Tulasnella species TPYD-1, TPYD-2 and TPYD-3, with high isolation frequencies by inoculation onto in vitro-produced D. officinale seedlings. Although the three fungi were closely related species and clustered together in the phylogenetic tree, they showed different efficiencies in promoting D. officinale seedling growth. Tulasnella TPYD-2 showed a strong ability to promote seedling growth and could be selected for use in restoration plantings of D. officinale.Conclusions: Our results suggest that using an in situ seedling baiting technique could be an efficient way to obtain seedling growth-promoting fungi, and this approach could have broad applications in orchid mycorrhiza studies and orchid conservation.

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Section: Discussionmentioning

confidence: 99%

In Situ Seedling Baiting to Isolate Plant Growth-Promoting Fungi From Dendrobium Officinale, An Over-Collected Medicinal Orchid In China

Chen

Wang

et al. 2021

Preprint

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“… Remove infected portion of pseudobulb and rhizome if the purple color is found. Drench germ-free plants in a thiophanate Methyl [ 38 ] 2018 Honolulu Orchid Fusarium Foliar Flower with leaf spots, sheath blights, wilts, pseudo stem or root rots Apply water directly around plants by soaker tube, slow successively hose, or soaking can. Apply water by using the sprinkler in the before noon, resultant foliage dehydrates quickly [ 7 ] 2019 China Dendrobium nobile Rhizoctonia Fungal Root Rot Leaves and pseudobulbs converted yellow, shriveled, thin and folded and new developments become gradually smaller.…”

Section: Geographical Distribution Of Orchid Diseasementioning

confidence: 99%

“…Cultural changes and even a site transfer can minimize disease as can good sanitation procedures. Zhang et al [ 38 ] have described the major symptoms of Fusarium wilt disease in Dendrobium officinale caused by Fusarium oxysporum . The wilt disease has developed a yellow leaves, defoliation arises.…”

Section: Signs and Symptoms Of Orchid Diseasesmentioning

confidence: 99%

Changes in global Orchidaceae disease geographical research trends: recent incidences, distributions, treatment, and challenges

et al. 2020

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Many of the Orchidaceae species are threatened due to environmental changes and over exploitation for full fill global demands. The main objective of this article was critically analyzed the recent global distribution of Orchidaceae diversity, its disease patterns, microbial disease identification, detection, along with prevention and challenges. Critical analysis findings revealed that Orchidaceae growth and developments were affected indirectly or directly as a result of complex microbial ecological interactions. Studies have identified many species associated with orchids, some are pathogenic and cause symptoms such as soft rot, brown rot, brown spot, black rot, wilt, foliar, root rot, anthracnose, leaf spot. The review was provided the comprehensive data to evaluate the identification and detection of microbial disease, which is the most important challenge for sustainable cultivation of Orchidaceae diversity. Furthermore, this article is the foremost of disease triggering microbes, orchid relations, and assimilates various consequences that both promoted the considerate and facts of such disease multipart, and will permit the development of best operative disease management practices.

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“…F. oxysporum was also found to cause root rot and stem rot in cherry plants (Prunus avium) Fusarium oxysporum was also diagnosed in orchid (Dendrobium officinale) in China, causing root and stem decay. The fungus was identified by the sequencing of ITS, β-tub, and tef1-α genomic regions (Zhang et al, 2017).…”

Section: Speciesmentioning

confidence: 99%

Characterization and Pathogenicity of Fusarium oxysporum Associated with Carya illinoinensis Seedlings

et al. 2020

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First Report of Fusarium Wilt of Dendrobium officinale Caused by Fusarium oxysporum in China

Cited by 10 publications

References 4 publications

In Situ Seedling Baiting to Isolate Plant Growth-Promoting Fungi From Dendrobium Officinale, An Over-Collected Medicinal Orchid In China

In Situ Seedling Baiting to Isolate Plant Growth-Promoting Fungi From Dendrobium Officinale, An Over-Collected Medicinal Orchid In China

Changes in global Orchidaceae disease geographical research trends: recent incidences, distributions, treatment, and challenges

Characterization and Pathogenicity of Fusarium oxysporum Associated with Carya illinoinensis Seedlings

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