Isolation and Characterization of a Pure Mannan from<i>Oncidium</i>(cv.<i>Gower Ramsey</i>) Current Pseudobulb during Initial Inflorescence Development

Wang, Heng-Long; Yeh, Kai‐Wun; Chen, Peng-Ren; Chang, Chih‐Hao; Chen, Jinmei; Khoo, Kay‐Hooi

doi:10.1271/bbb.70.551

Cited by 17 publications

(12 citation statements)

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“…Mannan polysaccharides are also found in orchids. For example, a pure mannan polysaccharide was extracted from the pseudobulbs of Oncidium ( Wang et al, 2006 ), and glucomannans were found in Dendrobium species such as D . huoshanense and D .…”

Section: Discussionmentioning

confidence: 99%

“…In addition, pure mannan is also found in the Orchidaceae , such as Oncidium (cv. ‘Gower Ramsey’; Wang et al, 2006 ). Glucomannans found in seeds contain a β-(1,4)-linked D -mannose backbone and β-(1,4)-linked D -glucose residues at different ratios ( Ishrud et al, 2001 ), and exist widely in the vegetative tissues of members of the Liliaceae , Araceae and Orchidaceae ( Meier and Reid, 1982 ).…”

Section: Introductionmentioning

confidence: 99%

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Cytochemical Localization of Polysaccharides in Dendrobium officinale and the Involvement of DoCSLA6 in the Synthesis of Mannan Polysaccharides

Zhang

et al. 2017

Front. Plant Sci.

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Dendrobium officinale is a precious traditional Chinese medicinal plant because of its abundant polysaccharides found in stems. We determined the composition of water-soluble polysaccharides and starch content in D. officinale stems. The extracted water-soluble polysaccharide content was as high as 35% (w/w). Analysis of the composition of monosaccharides showed that the water-soluble polysaccharides were dominated by mannose, to a lesser extent glucose, and a small amount of galactose, in a molar ratio of 223:48:1. Although starch was also found, its content was less than 10%. This result indicated that the major polysaccharides in D. officinale stems were non-starch polysaccharides, which might be mannan polysaccharides. The polysaccharides formed granules and were stored in plastids similar to starch grains, were localized in D. officinale stems by semi-thin and ultrathin sections. CELLULOSE SYNTHASE-LIKE A (CSLA) family members encode mannan synthases that catalyze the formation of mannan polysaccharides. To determine whether the CSLA gene from D. officinale was responsible for the synthesis of mannan polysaccharides, 35S:DoCSLA6 transgenic lines were generated and characterized. Our results suggest that the CSLA family genes from D. officinale play an important role in the biosynthesis of mannan polysaccharides.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cytochemical Localization of Polysaccharides in Dendrobium officinale and the Involvement of DoCSLA6 in the Synthesis of Mannan Polysaccharides

Zhang

et al. 2017

Front. Plant Sci.

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“…Buckeridge, unpublished data). There is at least one report of the presence of pure mannan in pseudobulbs of an orchid, Oncidium (Wang et al, 2006). However, it is likely that the polymer is acetylated, as it is soluble upon extraction with hot water.…”

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confidence: 99%

Seed Cell Wall Storage Polysaccharides: Models to Understand Cell Wall Biosynthesis and Degradation

2010

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Cell wall storage polysaccharides (CWSPs) are found as the principal storage compounds in seeds of many taxonomically important groups of plants. These groups developed extremely efficient biochemical mechanisms to disassemble cell walls and use the products of hydrolysis for growth. To accumulate these storage polymers, developing seeds also contain relatively high activities of noncellulosic polysaccharide synthases and thus are interesting models to seek the discovery of genes and enzymes related to polysaccharide biosynthesis. CWSP systems offer opportunities to understand phenomena ranging from polysaccharide deposition during seed maturation to the control of source-sink relationship in developing seedlings. By studying polysaccharide biosynthesis and degradation and the consequences for cell and physiological behavior, we can use these models to develop future biotechnological applications. CWSPs IN ENDOSPERMSGalactomannans and the Mannan Family

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“…In China, for Oncidium ascendens, researchers have identified a similar traditional therapeutic application to the one documented in Veracruz, i.e., treating inflammation and lacerations of the body [49]. Although studies detected inhibition of cancer cell lines proliferation due to stilbenoids and 1,4-β-mannan in this species [25,26], this action does not explain the efficacy of its traditional therapeutic application.…”

Section: As Far As Their Ethnobotany Villagers Usementioning

confidence: 99%

Ethnobotany, Pharmacology and Chemistry of Medicinal Orchids from Veracruz

Asseleih¹,

García²,

Cruz³

2015

JAST-A

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Isolation and Characterization of a Pure Mannan fromOncidium(cv.Gower Ramsey) Current Pseudobulb during Initial Inflorescence Development

Cited by 17 publications

References 20 publications

Cytochemical Localization of Polysaccharides in Dendrobium officinale and the Involvement of DoCSLA6 in the Synthesis of Mannan Polysaccharides

Cytochemical Localization of Polysaccharides in Dendrobium officinale and the Involvement of DoCSLA6 in the Synthesis of Mannan Polysaccharides

Seed Cell Wall Storage Polysaccharides: Models to Understand Cell Wall Biosynthesis and Degradation

Ethnobotany, Pharmacology and Chemistry of Medicinal Orchids from Veracruz

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